The new 40-page Thomson Saginaw Performance Pak Actutator (PPA) Engineering and Selection Guide enables designers to choose the proper electro-mechanical linear ball screw actuator
The new 40-page Thomson Saginaw Performance Pak Actutator (PPA) Engineering and Selection Guide enables designers to choose the proper electro-mechanical linear ball screw actuator for specific applications. Models range from 12-volt DC units for outdoor power use, through 90-volt DC units for fixed and variable travel rate applications.
This article was originally published on Engineeringtalk on 24 May 2000 at 8.00am (UK)
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25mm Brushed Ironless DC Motors from Portescap offer a rotational spring that delivers constant spring force
Ball screws reduce torque variation
Danaher Motion's standard range of Thomson ball screws offers precision of between 12um on a length of 300mm
Also included are models featuring 110- and 220-volt AC actuators for industrial, commercial, institutional and home installations.
Many options such as electric brakes and position sensors (both Hall-Effect and Potentiometer) are covered.
Detailed drawings for each type of actuator are included along with tables showing capacity, stroke and dimensions for every unit.
The guide also features a new family of Thomson Saginaw clevis-to-clevis end mounted DC, AC and miniature actuators.
Also included in the guide are digital linear actuators, combining Saginaw ball screws with Thomson Airpax Mechatronics' stepper motors.
Performance Pak Actuators have self-contained motors (or manual gear boxes) that drive ball screws.
Acme screw units are also available in 12-, 36- and 90-volt DC units.
PPA's feature: - all-steel support members - compression or tension load actuation - integral brakes and limit switches - weather-proof construction for DC models - 30% duty cycle motor rating - spur gear reduction - 13,350 N static capacity.
Thomson electro-mechanical linear ball screw actuators are used in the appliance, communications, garden and farm equipment, recreational vehicle, materials handling, and medical apparatus industries.
Wednesday, September 12, 2007
Modular screwjacks offre higher performance
Suiting loads from 5kN to 350kN, new modular screwjacks from Lenze offer a wide range of input and output options
Performance is high with linear speeds from crawl up to 150mm per second. These screwjacks are made in Bologna by linear motion specialists Servomech. There are two ranges. The SJ range is cube shaped and lower in cost whilst the MA range suits higher duties, highest forces and all options.
This article was originally published on Engineeringtalk on 7 June 2000 at 8.00am (UK)
Related stories
Software cuts servo planning time
Prepared Solutions software works in conjunction with the 9300 servo drives, reducing the time needed for planning and commissioning
Brakes tolerate dirty environments
Intorq's BFK461 brakes are constructed with an aluminium casing and O ring to seal the connection to the mounting surface
Both travelling nut and travelling screw versions are available.
All models can be specified with free shaft input, motor flange and motor if required and second shafts.
Unusually high linear speeds result from the ability to offer 1, 2 and 3 start acme thread screws.
At maximum load, screwjacks can run at a 30% duty cycle.
Common options are guide bushes for horizontal forces, plus protective tubes and bellows for arduous environments.
Safety nuts can be fitted with a wear indicator system.
With travelling screw models, stroke limit switches can be fitted.
Already proven in applications such as British Airways' London Eye and the Milan Opera House, Servomech screwjacks solve linear motion problems.
Lenze can supply screwjacks with ac, dc or servo motors.
Both single screwjacks and multi-jack systems are available with connecting couplings, bevel gearboxes and controls.
Such complete packages, supported with CAD design, mak
Performance is high with linear speeds from crawl up to 150mm per second. These screwjacks are made in Bologna by linear motion specialists Servomech. There are two ranges. The SJ range is cube shaped and lower in cost whilst the MA range suits higher duties, highest forces and all options.
This article was originally published on Engineeringtalk on 7 June 2000 at 8.00am (UK)
Related stories
Software cuts servo planning time
Prepared Solutions software works in conjunction with the 9300 servo drives, reducing the time needed for planning and commissioning
Brakes tolerate dirty environments
Intorq's BFK461 brakes are constructed with an aluminium casing and O ring to seal the connection to the mounting surface
Both travelling nut and travelling screw versions are available.
All models can be specified with free shaft input, motor flange and motor if required and second shafts.
Unusually high linear speeds result from the ability to offer 1, 2 and 3 start acme thread screws.
At maximum load, screwjacks can run at a 30% duty cycle.
Common options are guide bushes for horizontal forces, plus protective tubes and bellows for arduous environments.
Safety nuts can be fitted with a wear indicator system.
With travelling screw models, stroke limit switches can be fitted.
Already proven in applications such as British Airways' London Eye and the Milan Opera House, Servomech screwjacks solve linear motion problems.
Lenze can supply screwjacks with ac, dc or servo motors.
Both single screwjacks and multi-jack systems are available with connecting couplings, bevel gearboxes and controls.
Such complete packages, supported with CAD design, mak
Modular screwjacks offre higher performance
Suiting loads from 5kN to 350kN, new modular screwjacks from Lenze offer a wide range of input and output options
Performance is high with linear speeds from crawl up to 150mm per second. These screwjacks are made in Bologna by linear motion specialists Servomech. There are two ranges. The SJ range is cube shaped and lower in cost whilst the MA range suits higher duties, highest forces and all options.
This article was originally published on Engineeringtalk on 7 June 2000 at 8.00am (UK)
Related stories
Software cuts servo planning time
Prepared Solutions software works in conjunction with the 9300 servo drives, reducing the time needed for planning and commissioning
Brakes tolerate dirty environments
Intorq's BFK461 brakes are constructed with an aluminium casing and O ring to seal the connection to the mounting surface
Both travelling nut and travelling screw versions are available.
All models can be specified with free shaft input, motor flange and motor if required and second shafts.
Unusually high linear speeds result from the ability to offer 1, 2 and 3 start acme thread screws.
At maximum load, screwjacks can run at a 30% duty cycle.
Common options are guide bushes for horizontal forces, plus protective tubes and bellows for arduous environments.
Safety nuts can be fitted with a wear indicator system.
With travelling screw models, stroke limit switches can be fitted.
Already proven in applications such as British Airways' London Eye and the Milan Opera House, Servomech screwjacks solve linear motion problems.
Lenze can supply screwjacks with ac, dc or servo motors.
Both single screwjacks and multi-jack systems are available with connecting couplings, bevel gearboxes and controls.
Such complete packages, supported with CAD design, mak
Performance is high with linear speeds from crawl up to 150mm per second. These screwjacks are made in Bologna by linear motion specialists Servomech. There are two ranges. The SJ range is cube shaped and lower in cost whilst the MA range suits higher duties, highest forces and all options.
This article was originally published on Engineeringtalk on 7 June 2000 at 8.00am (UK)
Related stories
Software cuts servo planning time
Prepared Solutions software works in conjunction with the 9300 servo drives, reducing the time needed for planning and commissioning
Brakes tolerate dirty environments
Intorq's BFK461 brakes are constructed with an aluminium casing and O ring to seal the connection to the mounting surface
Both travelling nut and travelling screw versions are available.
All models can be specified with free shaft input, motor flange and motor if required and second shafts.
Unusually high linear speeds result from the ability to offer 1, 2 and 3 start acme thread screws.
At maximum load, screwjacks can run at a 30% duty cycle.
Common options are guide bushes for horizontal forces, plus protective tubes and bellows for arduous environments.
Safety nuts can be fitted with a wear indicator system.
With travelling screw models, stroke limit switches can be fitted.
Already proven in applications such as British Airways' London Eye and the Milan Opera House, Servomech screwjacks solve linear motion problems.
Lenze can supply screwjacks with ac, dc or servo motors.
Both single screwjacks and multi-jack systems are available with connecting couplings, bevel gearboxes and controls.
Such complete packages, supported with CAD design, mak
Screwjacks maintain the London Eye's gap
On the London Eye, to compensate for changes in the wheel radius and axes, the entire platform structure is automatically adjusted using servo driven screwjacks
As you step from the platform onto one of the gondolas of the British Airways London Eye, it is not possible to see the technology operating beneath one's feet. Observers will note that the wheel never stops. Passengers alighting and boarding the gondolas do so as they pass slowly along the platform.
This article was originally published on Engineeringtalk on 13 June 2000 at 8.00am (UK)
Related stories
Software cuts servo planning time
Prepared Solutions software works in conjunction with the 9300 servo drives, reducing the time needed for planning and commissioning
Brakes tolerate dirty environments
Intorq's BFK461 brakes are constructed with an aluminium casing and O ring to seal the connection to the mounting surface
To achieve safe access and egress, there must be only a small and constantly maintained gap between platform and gondola at all times, even in high winds when the wheel might move slightly about its vertical and horizontal axes.
To ensure a constant gap, the concept of a dynamic floating floor was designed and manufactured by WGH Ltd of Doncaster, Yorkshire.
To compensate for changes in the wheel radius and axes, the entire platform structure is automatically adjusted using servo driven screwjacks supplied by Bedford based Lenze Limited.
In the horizontal plane, the requirement for movement proved to be very demanding.
The platform was divided into 18 'fingers' that move in and out independently, driven by similar servo driven screwjacks.
Further reading
Frequency inverters improve workplace comfort
The SMV features a pluggable memory chip which allows the inverter to be set up in seconds, even on the bench before installation
Servo drive range completed early
Lenze 9400 servo drives offer safe stopping under power, safe jog and safety limited speed, meeting EN954-1 requirements
Panel aids carpet design
Cobble Blackburn's master control is performed with a Lenze Drive PLC programmed to IEC6113-3
Screwjacks on the vertical axes are type SJ80 manufactured by linear actuator specialist Servomech.
There are 10 along the length of the platform, each rated at 80kN with a stroke of 100mm.
They are driven by Lenze servo geared motors, a frame 56 synchronous motor rated at 2.8Nm combined with a Lenze helical gearbox with a ratio of 32.
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JUNIOR ELECTRICAL DESIGN ENGINEER - CITY CENTRE - BUILDING SERVICES
OUR CLIENTS ARE A LEADING MECHANICAL AND ELECTRICAL ENGINEERING CONSULTANCY WITH 7 OFFICES ACROSS THE UK. THEY ARE CURRENTLY LOOKING TO RECRUIT 2 JUNIOR ELECTRICAL DESIGN...
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This results in a maximum linear speed of 1.34mm/sec, imperceptible to the passengers above when combined with speed change ramping.
The 10 vertical axis motors are driven by Lenze 9321 controllers as a master and 9 slaves.
The drives communicate to each other by built-in CANbus.
For the 18 platform fingers on the horizontal motion, the loads were somewhat lighter which permitted smaller screwjacks to be deployed.
Servomech model MA10 screwjacks rated at 10kN with a stroke of 900mm were coupled to Lenze servo motors of frame 36 size with a rated torque of 1.3Nm.
No gearbox was required and the result is a maximum linear speed of 50mm/sec at a motor speed of 3000rpm.
Normal movement however is imperceptible as the position is constantly adjusted.
Unlike the vertical axis, there was a potential problem with the horizontal drives.
Should any one fail in the extended position, a collision would occur with the next gondola.
To avoid such an emergency stopping the wheel, a second set of drives to the platform fingers was installed as an emergency back-up.
Control of the horizontal drive starts with sensors that measure the position of the gondola as it approaches the platform.
The first finger moves into position while the others follow like a wave as the gondola passes.
Control signals are processed in a PLC and communications are with PROFIBUS, chosen because it is fast and reliable, also because it is standard for the PLC and a standard software option for the Lenze drive.
As a further precaution against failure, the control system is duplicated in a different location on the site.
This means a reserve set of drives and an additional PLC are always on standby.
The screwjacks are all exposed to the elements, in particular the damp in close proximity to the River Thames.
Servo motors are rated at IP65 including the plug connectors.
Screwjacks are totally enclosed with stainless steel acme screw fixings and have a protective paint finish.
The combination of Servomech screwjacks with Lenze servo motors and geared motors resulted in compact high performance linear drives.
Communications to the PLC and the drives were easily integrated using Profibus and CANbus.
As passengers cross the platform, a drive system that is both complex and safe works silently below.
As you step from the platform onto one of the gondolas of the British Airways London Eye, it is not possible to see the technology operating beneath one's feet. Observers will note that the wheel never stops. Passengers alighting and boarding the gondolas do so as they pass slowly along the platform.
This article was originally published on Engineeringtalk on 13 June 2000 at 8.00am (UK)
Related stories
Software cuts servo planning time
Prepared Solutions software works in conjunction with the 9300 servo drives, reducing the time needed for planning and commissioning
Brakes tolerate dirty environments
Intorq's BFK461 brakes are constructed with an aluminium casing and O ring to seal the connection to the mounting surface
To achieve safe access and egress, there must be only a small and constantly maintained gap between platform and gondola at all times, even in high winds when the wheel might move slightly about its vertical and horizontal axes.
To ensure a constant gap, the concept of a dynamic floating floor was designed and manufactured by WGH Ltd of Doncaster, Yorkshire.
To compensate for changes in the wheel radius and axes, the entire platform structure is automatically adjusted using servo driven screwjacks supplied by Bedford based Lenze Limited.
In the horizontal plane, the requirement for movement proved to be very demanding.
The platform was divided into 18 'fingers' that move in and out independently, driven by similar servo driven screwjacks.
Further reading
Frequency inverters improve workplace comfort
The SMV features a pluggable memory chip which allows the inverter to be set up in seconds, even on the bench before installation
Servo drive range completed early
Lenze 9400 servo drives offer safe stopping under power, safe jog and safety limited speed, meeting EN954-1 requirements
Panel aids carpet design
Cobble Blackburn's master control is performed with a Lenze Drive PLC programmed to IEC6113-3
Screwjacks on the vertical axes are type SJ80 manufactured by linear actuator specialist Servomech.
There are 10 along the length of the platform, each rated at 80kN with a stroke of 100mm.
They are driven by Lenze servo geared motors, a frame 56 synchronous motor rated at 2.8Nm combined with a Lenze helical gearbox with a ratio of 32.
Latest job opportunities
*** JUNIOR ELECTRICAL DESIGN ENGINEER - CITY CENTRE ***
JUNIOR ELECTRICAL DESIGN ENGINEER - CITY CENTRE - BUILDING SERVICES
OUR CLIENTS ARE A LEADING MECHANICAL AND ELECTRICAL ENGINEERING CONSULTANCY WITH 7 OFFICES ACROSS THE UK. THEY ARE CURRENTLY LOOKING TO RECRUIT 2 JUNIOR ELECTRICAL DESIGN...
*** ENGINEERS WANTED! ***
**** ENGINEERS WANTED! ****
We currently have vacancies across Leicester and the East Midlands for skilled engineers in all disciplines. Whether you are currently employed and looking for options or are out of work call us today for a confidential...
***INTERMEDIATE ELECTRICAL DESIGN ENGINEER - BUILDING SERVICES
INTERMEDIATE ELECTRICAL DESIGN ENGINEER - BUILDING SERVICES - CENTRAL LONDON
Since 1958 our client has been delivering building services engineering consultancy to a growing range of market sectors. They have also developed a highly skilled energy...
This results in a maximum linear speed of 1.34mm/sec, imperceptible to the passengers above when combined with speed change ramping.
The 10 vertical axis motors are driven by Lenze 9321 controllers as a master and 9 slaves.
The drives communicate to each other by built-in CANbus.
For the 18 platform fingers on the horizontal motion, the loads were somewhat lighter which permitted smaller screwjacks to be deployed.
Servomech model MA10 screwjacks rated at 10kN with a stroke of 900mm were coupled to Lenze servo motors of frame 36 size with a rated torque of 1.3Nm.
No gearbox was required and the result is a maximum linear speed of 50mm/sec at a motor speed of 3000rpm.
Normal movement however is imperceptible as the position is constantly adjusted.
Unlike the vertical axis, there was a potential problem with the horizontal drives.
Should any one fail in the extended position, a collision would occur with the next gondola.
To avoid such an emergency stopping the wheel, a second set of drives to the platform fingers was installed as an emergency back-up.
Control of the horizontal drive starts with sensors that measure the position of the gondola as it approaches the platform.
The first finger moves into position while the others follow like a wave as the gondola passes.
Control signals are processed in a PLC and communications are with PROFIBUS, chosen because it is fast and reliable, also because it is standard for the PLC and a standard software option for the Lenze drive.
As a further precaution against failure, the control system is duplicated in a different location on the site.
This means a reserve set of drives and an additional PLC are always on standby.
The screwjacks are all exposed to the elements, in particular the damp in close proximity to the River Thames.
Servo motors are rated at IP65 including the plug connectors.
Screwjacks are totally enclosed with stainless steel acme screw fixings and have a protective paint finish.
The combination of Servomech screwjacks with Lenze servo motors and geared motors resulted in compact high performance linear drives.
Communications to the PLC and the drives were easily integrated using Profibus and CANbus.
As passengers cross the platform, a drive system that is both complex and safe works silently below.
Wednesday, September 5, 2007
Ballscrew proves ideal for pharmaceutical analysis
Miniature Rolled Ballscrew beats ground ball screw in pharmaceutical application
Many precision motion products are specified to operate in difficult environments and to meet customer's specifications. The performance of these linear ball screws must encompass high rigidity and high load capacity, anti corrosion properties, especially in harsh environments or where contaminates are likely and the ability to provide smooth repeatable and accurate movements, combined together in a compact, quite and cost effective design.
This article was originally published on Engineeringtalk on 8 February 2000 at 8.00am (UK)
Related stories
Linear actuator is complete package
Electric linear actuator is ideal for applications in vibrating environments, offering less then 1mm backlash
Springs machined from solid metal
Machined springs can provide very precise, linear deflection rates because virtually all residual stresses are eliminated
This sounds like a tall order, but Abssac has risen to the challenge for a pharmaceutical analysis customer of theirs, providing a new concept of combining quality high accuracy parts with low cost parts appeal.
The precision rolled ball screw has a similar accuracy class of the ground ball screw, providing a cost saving of 50%.
Chris Cattle of Abssac said 'We produce extra quantities of the ground nut and precision balls to reduce their cost and then use a HRC 58 - 62 hardened precision rolled ball screw to obtain a cost reduction whilst offering high accuracy' This in turn has achieved the goal of the customers' requirement; low cost, high accuracy.
Further reading
Helical beam flexure provides flexibility
Using the Helical beam flexure technology, Abssac was able to take a customer's pre-machined part and generate a helical flexure within it and solve a flexibility problem
Splined shafts available in larger sizes
Standard splined shafts are available from 11 to 46mm diameter with either six or eight splines
A spokesperson for the customer stated that the goal was achieved by using the Abssac MRB, (Miniature Rolled Ballscrew) and that due to the rolling process taking considerably less time than the ground ball screw option, the delivery time was reduced from 12 weeks to 3 weeks which made production fine tuning more accessible and lead times for production less of a headache.
The ball screw is used in a electronic microscope that pushes a precision guillotine up against test pharmaceutical materials that require extremely fine slithers of test material to be cut off in rapid succession with a high degree of repeatability accuracy in large quantities.
The MRB ball screw achieves this by using a 1.00mm lead and hand loaded precision balls for linear repeatability guarantees.
All included in the low cost is a guarantee that all ball screws will have hand loaded balls to ensure that the accuracy class extends throughout the entire length of the ball screw travel.
We at Abssac are extremely pleased with the performance of the MRB ball screws and are delighted that we were able to offer the product at 50% less cost than the previous product used, and matched the performance criteria.
Many precision motion products are specified to operate in difficult environments and to meet customer's specifications. The performance of these linear ball screws must encompass high rigidity and high load capacity, anti corrosion properties, especially in harsh environments or where contaminates are likely and the ability to provide smooth repeatable and accurate movements, combined together in a compact, quite and cost effective design.
This article was originally published on Engineeringtalk on 8 February 2000 at 8.00am (UK)
Related stories
Linear actuator is complete package
Electric linear actuator is ideal for applications in vibrating environments, offering less then 1mm backlash
Springs machined from solid metal
Machined springs can provide very precise, linear deflection rates because virtually all residual stresses are eliminated
This sounds like a tall order, but Abssac has risen to the challenge for a pharmaceutical analysis customer of theirs, providing a new concept of combining quality high accuracy parts with low cost parts appeal.
The precision rolled ball screw has a similar accuracy class of the ground ball screw, providing a cost saving of 50%.
Chris Cattle of Abssac said 'We produce extra quantities of the ground nut and precision balls to reduce their cost and then use a HRC 58 - 62 hardened precision rolled ball screw to obtain a cost reduction whilst offering high accuracy' This in turn has achieved the goal of the customers' requirement; low cost, high accuracy.
Further reading
Helical beam flexure provides flexibility
Using the Helical beam flexure technology, Abssac was able to take a customer's pre-machined part and generate a helical flexure within it and solve a flexibility problem
Splined shafts available in larger sizes
Standard splined shafts are available from 11 to 46mm diameter with either six or eight splines
A spokesperson for the customer stated that the goal was achieved by using the Abssac MRB, (Miniature Rolled Ballscrew) and that due to the rolling process taking considerably less time than the ground ball screw option, the delivery time was reduced from 12 weeks to 3 weeks which made production fine tuning more accessible and lead times for production less of a headache.
The ball screw is used in a electronic microscope that pushes a precision guillotine up against test pharmaceutical materials that require extremely fine slithers of test material to be cut off in rapid succession with a high degree of repeatability accuracy in large quantities.
The MRB ball screw achieves this by using a 1.00mm lead and hand loaded precision balls for linear repeatability guarantees.
All included in the low cost is a guarantee that all ball screws will have hand loaded balls to ensure that the accuracy class extends throughout the entire length of the ball screw travel.
We at Abssac are extremely pleased with the performance of the MRB ball screws and are delighted that we were able to offer the product at 50% less cost than the previous product used, and matched the performance criteria.
Low cost and high accuracy from ballscrews
THK UK has released details of two miniature ball screws, which provide cost effective, yet highly accurate, linear motion for a wide range of limited space applications
Miniature Type MTF is a rolled ball screw, which provides extremely high efficiency and accuracy at a low cost, while Type MBF is constructed using precision grinding methods to achieve exceptionally high levels of accuracy and performance. The rolled ball screw, Type MTF, utilises the plate return method to minimise its size and ensure suitability for applications where space is limited.
This article was originally published on Engineeringtalk on 10 February 2000 at 8.00am (UK)
Related stories
A decade of linear motion evolution
Bob Love, Technical Manager for THK UK, chronicles the evolution of the linear motion guide mechanism and his company's Caged Ball technology
Cylindrical ball spline removes angular backlash
THK has introduced its latest LBS cylindrical ball spline, which is designed to eliminate angular backlash while providing high levels of rigidity and accuracy from a compact, rugged device
The ball screw is both hard wearing and accurate, achieving an accumulated lead error of +/-0.1/300mm.
Type MTF is available in a range of shaft sizes from 6mm diameter to 12mm diameter and 1mm or 2mm lead, depending on diameter.
Type MBF ball screws are produced using precision grinding methods to achieve an extremely high lead accuracy, in a choice of either Class C3 or C5 graded models.
Type MBF ball screws feature zero backlash and are supplied with an axial play set at 5 micrometers or less, though this can be adjusted to below zero.
The MBF is available with an outside shaft diameter between 4mm and 14mm, with leads from 1mm to 4mm.
In both Type MTF and MBF standard ball screws, only the threaded section of the shaft surface is treated by carburizing hardening.
This both extends the operating life of the ball screw and allows the ends of the shaft to be machined by turning, milling, etc, if required
Miniature Type MTF is a rolled ball screw, which provides extremely high efficiency and accuracy at a low cost, while Type MBF is constructed using precision grinding methods to achieve exceptionally high levels of accuracy and performance. The rolled ball screw, Type MTF, utilises the plate return method to minimise its size and ensure suitability for applications where space is limited.
This article was originally published on Engineeringtalk on 10 February 2000 at 8.00am (UK)
Related stories
A decade of linear motion evolution
Bob Love, Technical Manager for THK UK, chronicles the evolution of the linear motion guide mechanism and his company's Caged Ball technology
Cylindrical ball spline removes angular backlash
THK has introduced its latest LBS cylindrical ball spline, which is designed to eliminate angular backlash while providing high levels of rigidity and accuracy from a compact, rugged device
The ball screw is both hard wearing and accurate, achieving an accumulated lead error of +/-0.1/300mm.
Type MTF is available in a range of shaft sizes from 6mm diameter to 12mm diameter and 1mm or 2mm lead, depending on diameter.
Type MBF ball screws are produced using precision grinding methods to achieve an extremely high lead accuracy, in a choice of either Class C3 or C5 graded models.
Type MBF ball screws feature zero backlash and are supplied with an axial play set at 5 micrometers or less, though this can be adjusted to below zero.
The MBF is available with an outside shaft diameter between 4mm and 14mm, with leads from 1mm to 4mm.
In both Type MTF and MBF standard ball screws, only the threaded section of the shaft surface is treated by carburizing hardening.
This both extends the operating life of the ball screw and allows the ends of the shaft to be machined by turning, milling, etc, if required
Tuesday, September 4, 2007
Hepco offers its ultimate linear system
The GV3 linear motion system combines the proven benefits of the Hepco 'V' bearing principle with its highly successful Generation II and CM slide systems and teams them with new components
The GV3 linear motion system is Hepco's most ambitious development to date. It combines the proven benefits of the Hepco 'V' bearing principle with its highly successful Generation II and CM slide systems and teams them with new component introductions. As a result, customers now have an unrivalled choice of sizes, grades and options.
This article was originally published on Engineeringtalk on 11 February 2000 at 8.00am (UK)
Related stories
Heavy-duty guides handle dusty machine environment
Linear motion system has the reliability to meet the needs of a project that demanded no manual intervention
Double or treble the life of linear motion system
The life of Hepco's multiple-choice GV3 linear motion system can be doubled or even trebled now that the company's SH Industrial Hydraulic Shock Absorbers are available as system accessories
GV3 provides an extensive menu of design elements from which to specify the optimum linear motion system to suit both application and budget.
Slides in three grades of precision, three types of bearing assembly, three methods of lubrication and three types of carriage are complemented by an extensive range of sizes.
GV3 includes 100 different slides, 100 different carriages and 100 different carriage plates.
This choice has been made possible by changes in the way Hepco manufactures its products.
Considerable capital investment and JIT production have allowed Hepco to be much more flexible.
Further reading
Slide system meets demanding robotics needs
The HepcoMotion slide system provides the main horizontal motion for a snake arm robot used in a nuclear reactor
System controls dosing to weighing cart
Smart Cart can accommodate as many weighing carriages as the application requires
Designing handling systems for heavy applications
Chris Rees offers advice on the design of heavy-duty systems for pick-and-place operations
The company can now produce small batch sizes economically and quickly.
The result is not only a significantly broader range of options but also an unprecedented ability to provide customised solutions.
3 grades - double and single edged Slides are now available in P1 precision - ground on V surfaces and all mounting faces, P2 semi-precision - ground on V faces and side registers - and P3 unground.
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To inhibit corrosion, all unground surfaces - whether they be slides, flat tracks or racks - have an attractive matt black coating.
Double edge slides remain an important part of the system and indeed seven new sizes have been introduced in GV3.
However, they are not the only choice.
If the given application only uses one side of the slide, the designer can now select from a range of single edge slides.
Equivalents of the new double edge size additions are also in the flat slide and single edge spacer and flat ranges; these are complemented by a wider choice of bearing sizes.
More beams for wide ranging applications The Hepco slide beam is rigid, self-supporting and can form an integral part of a machine structure.
Two basic sizes of beam are provided in GV3, each available with a number of different slide widths to suit space and moment load requirements.
The smaller sized beam may also be specified as a lightweight version.
This reduces inertia where the slide beam is to be used dynamically.
Slides attached to beams are again available in three grades of precision, with T-nuts, T-slot covers, fixing clamps and counterbored fixing option for use with belts.
3 types of bearings including low cost Slimline With GV3 there are now three types of bearings.
These are twin bearings - two individual single row bearings on a stud; double row bearings - a one-piece component with a higher radial capacity and no dirt traps; and the low cost single row Slimline bearings.
In addition to new sizes and the availability of Nitrile seals on all bearings, double throw eccentric and blind hole 'Slimline' bearings have also been introduced.
For high precision applications, a controlled height option can now be specified.
Flat track and rollers - instant stability This time and cost-saving option was developed from Hepco's Heavy Duty System but is smaller in size to suit general purpose applications.
It gives the benefit of spacing bearings widely apart for stability without the need for accurate parallel setting of two V slides.
Wide and narrow versions of Hepco's track rollers are now available to suit flat tracks.
They can also be run on the back face of single edge spacer slides.
Narrow versions have a single row bearing and wide, a double row bearing.
Blind hole fixing is also available on the wide type.
Removable carriages included in the options These are now available to suit all sizes and types of double edge slide in all grades of precision.
They can be supplied factory assembled and set to the slide or as a simple kit-of-parts.
New with GV3 is the choice of removable carriages with double eccentric bearings.
By slackening the bearing stud fixing nuts and rotating the eccentric, the carriage can be disengaged from the slide.
Borrowed from Hepco's SL2 system is the supply of blanking plugs with all carriages for bearing fixing holes.
Proven and new lubrication options In addition to cap seals and cap wipers, specifiers of GV3 can also select Hepco lubricators which are proven elements of its Ring and Track system.
These are now available as compact and flange types for twin and double row bearings.
Also introduced in GV3 are lubricators for the Slimline bearings.
3 styles of rack driven carriages To suit the gearbox flange mounting, GV3 introduces special rack driven carriages which are factory-assembled and supplied complete with worm gearbox, gearbox flange, pinion and if required, AC motor.
A wide range of transmission products is offered with a variety of options including torque limiters and enhanced IP rating.
The carriages are available for five spacer slide/rack combinations to meet design and performance needs.
For belt driven carriages, Hepco can also supply drive, idler pulleys and belt.
Further options Flange clamps were originally introduced in Hepco's CM commercial system and are now an option in GV3.
They are available for all sizes of double edge spacer slides, regardless of their precision grade.
Also, in addition to racks fitted to double edge spacer slides and those integral to Hepco's single edge spacer slides, stand-alone racks are now also available.
Shaft and boss type pinions complete the package.
Hepco's GV3 is the ultimate linear motion package which allows the customer to specify the optimum linear motion system for the application concerned.
It is fully detailed in a new 72 page catalogue
The GV3 linear motion system is Hepco's most ambitious development to date. It combines the proven benefits of the Hepco 'V' bearing principle with its highly successful Generation II and CM slide systems and teams them with new component introductions. As a result, customers now have an unrivalled choice of sizes, grades and options.
This article was originally published on Engineeringtalk on 11 February 2000 at 8.00am (UK)
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GV3 provides an extensive menu of design elements from which to specify the optimum linear motion system to suit both application and budget.
Slides in three grades of precision, three types of bearing assembly, three methods of lubrication and three types of carriage are complemented by an extensive range of sizes.
GV3 includes 100 different slides, 100 different carriages and 100 different carriage plates.
This choice has been made possible by changes in the way Hepco manufactures its products.
Considerable capital investment and JIT production have allowed Hepco to be much more flexible.
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The company can now produce small batch sizes economically and quickly.
The result is not only a significantly broader range of options but also an unprecedented ability to provide customised solutions.
3 grades - double and single edged Slides are now available in P1 precision - ground on V surfaces and all mounting faces, P2 semi-precision - ground on V faces and side registers - and P3 unground.
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To inhibit corrosion, all unground surfaces - whether they be slides, flat tracks or racks - have an attractive matt black coating.
Double edge slides remain an important part of the system and indeed seven new sizes have been introduced in GV3.
However, they are not the only choice.
If the given application only uses one side of the slide, the designer can now select from a range of single edge slides.
Equivalents of the new double edge size additions are also in the flat slide and single edge spacer and flat ranges; these are complemented by a wider choice of bearing sizes.
More beams for wide ranging applications The Hepco slide beam is rigid, self-supporting and can form an integral part of a machine structure.
Two basic sizes of beam are provided in GV3, each available with a number of different slide widths to suit space and moment load requirements.
The smaller sized beam may also be specified as a lightweight version.
This reduces inertia where the slide beam is to be used dynamically.
Slides attached to beams are again available in three grades of precision, with T-nuts, T-slot covers, fixing clamps and counterbored fixing option for use with belts.
3 types of bearings including low cost Slimline With GV3 there are now three types of bearings.
These are twin bearings - two individual single row bearings on a stud; double row bearings - a one-piece component with a higher radial capacity and no dirt traps; and the low cost single row Slimline bearings.
In addition to new sizes and the availability of Nitrile seals on all bearings, double throw eccentric and blind hole 'Slimline' bearings have also been introduced.
For high precision applications, a controlled height option can now be specified.
Flat track and rollers - instant stability This time and cost-saving option was developed from Hepco's Heavy Duty System but is smaller in size to suit general purpose applications.
It gives the benefit of spacing bearings widely apart for stability without the need for accurate parallel setting of two V slides.
Wide and narrow versions of Hepco's track rollers are now available to suit flat tracks.
They can also be run on the back face of single edge spacer slides.
Narrow versions have a single row bearing and wide, a double row bearing.
Blind hole fixing is also available on the wide type.
Removable carriages included in the options These are now available to suit all sizes and types of double edge slide in all grades of precision.
They can be supplied factory assembled and set to the slide or as a simple kit-of-parts.
New with GV3 is the choice of removable carriages with double eccentric bearings.
By slackening the bearing stud fixing nuts and rotating the eccentric, the carriage can be disengaged from the slide.
Borrowed from Hepco's SL2 system is the supply of blanking plugs with all carriages for bearing fixing holes.
Proven and new lubrication options In addition to cap seals and cap wipers, specifiers of GV3 can also select Hepco lubricators which are proven elements of its Ring and Track system.
These are now available as compact and flange types for twin and double row bearings.
Also introduced in GV3 are lubricators for the Slimline bearings.
3 styles of rack driven carriages To suit the gearbox flange mounting, GV3 introduces special rack driven carriages which are factory-assembled and supplied complete with worm gearbox, gearbox flange, pinion and if required, AC motor.
A wide range of transmission products is offered with a variety of options including torque limiters and enhanced IP rating.
The carriages are available for five spacer slide/rack combinations to meet design and performance needs.
For belt driven carriages, Hepco can also supply drive, idler pulleys and belt.
Further options Flange clamps were originally introduced in Hepco's CM commercial system and are now an option in GV3.
They are available for all sizes of double edge spacer slides, regardless of their precision grade.
Also, in addition to racks fitted to double edge spacer slides and those integral to Hepco's single edge spacer slides, stand-alone racks are now also available.
Shaft and boss type pinions complete the package.
Hepco's GV3 is the ultimate linear motion package which allows the customer to specify the optimum linear motion system for the application concerned.
It is fully detailed in a new 72 page catalogue
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