Category Archives: Bearings

Motion Control – The Engineering Edge – Application – ETX Pillow Blocks!


Motion Control – Application

ETX Pillow/Block Bearings for Radioactive Environments
the engineering edge application

This was a troublesome application. This system is completely submerged in radioactive water at a nuclear power plant. So no Teflon, no seals, no lubrication – nothing that will degrade in a radioactive environment. The majority of components are stainless steel – except for our ceramic coated/supported shafting and our special, designed for this particular application/never made before, ETX self-lubricating linear blocks.

Motion Control – The Engineering Edge – Lowest Coefficient of Friction Linear Bearings


low coefficient of friction linear bearings

Motion Control – Pegasus Linear Bearings – For the Time A Linear Bearing Simply Cannot Fail!

Motion Control – Hybrid Ceramic Ball Linear Bearings

For those times when a Linear Bearing “CANNOT” Fail!

motion control - linear bearings


motion control - linear motion products

 

 

E. Longmeadow, MA –Motion Control – LM76 has developed the most corrosion resistant linear bearing available. In space, deep under the sea, or in the harshest environments, when there can be no “Plan B,” Pegasus Series 1 Linear Ball Bearings can be counted on to perform. In some applications linear bearings will not move for days, weeks, months or even years, however, when called on to perform they must work as if they just came out of the box. LM76’s Pegasus Series 1 Linear Bearings feature Silicon Nitride (SiNi) Ceramic Balls in a shell with retainer and end caps all made from 440 Stainless Steel and then ArmorloyTM coated.

Motion Control – One Piece ETX Linear Bearing/Pillow Blocks Can Be Used In Radioactive Environments!

Motion Control- ETX Linear Bearing/Pillow Blocks

Motion Control Bearing/Pillow Block for Radioactive Environments

E. Longmeadow, MA Motion — Control Components – Linear Motion – LM76 now offers one piece ETX Linear Bearing/Pillow Blocks that will not degrade in a radioactive environment! Machined from a solid block of self lubricating ETX, linear bearing-blocks have high strength, excellent wear resistance, low coefficient of friction, and excellent dimensional stability at higher temperatures as there is no other materials such as PTFE seals or lubricants these bearing-blocks are maintenance free.

motion control - lm76

Custom designed for use in a nuclear power plant these linear bearing/pillow blocks travel on ceramic coated shafting (also supplied by LM76) completely submerged in radioactive water.

To see the “Motion Control Application – ETX Pillow/Block Bearings for Radioactive Environments” CLICK HERE

Motion Control – Application – In “Off-Roading” LM76’s Black Racer Bearing is a Winner!

Motion Control – Application – Ceramic Linear Bearings

motion control - linear bearings

Motion Control – Anyone who’s worked on cars knows how critically important ball joints are to steering and suspension. They also know what happens when ball joints fail!

motion control - lm76 products

E. Longmeadow, MA – — Motion Control – Application Story – When an aftermarket manufacturer of off-road steering and suspension systems needed an upper ball joint bearing, they called LM76. These systems are purchased by off-road vehicle owners who want to upgrade their OEM steering and suspension units for hard-hitting environments. Pounding, shock, sand and debris are all part of the mix when it comes to extreme off-roading and LM76 Black Racer bearings are right at home. According to company engineers, after a year of brutal testing, Black Racer met all design goals and exceeded expectations.

Motion Control -What To Consider When Specifying A Linear Slide

Motion Control – Tutorial

Considerations when specifying a linear slide for a new or existing application.

By Mike Quinn • LM76

When a design engineer has fully defined a linear-motion application’s requirements regarding travel length, speed, force, and accuracy as well as repeatability, the next question to answer is this:

Does an off-the-shelf linear slide (or a stock linear slide from a catalog) fully satisfy the application?

motion control - lm76

Off-the-shelf linear slides are advantageous for their quick delivery and lower cost than that of custom components. No wonder most linear-motion designs do in fact employ off-the-shelf linear slides from various component and system suppliers.

motion control - linear stage

Motion Control – Water Dog Sliders from LM76 are FDA/USDA/3-A Dairy Compliant!

Motion Control – FDA/USDA Compliant Linear Slides
Engineering Edge - FDA/USDA/3-A Dairy Compliant Linear Slides
engineering edge - Linear slides

 

Motion Control – Use FDA Compliant Off-the-Shelf Linear Motion Components!

Motion Control – FDA Compliant Components

To: OEMs “Tooling Up” for Urgently Needed Medical Products! Use FDA Compliant Off-the-Shelf Linear Motion Components!

motion control FDA compliant components

E. Longmeadow, MA — Motion Control Components – Linear Motion – In dealing with the COVID-19 pandemic many companies have volunteered or been requested to produce urgently needed medical products such as: Masks, gowns, and ventilators. “Tooling Up” quickly to produce medical grade products for some companies can bring challenges. In addition to needing FDA compliant materials that will be used in the actual masks, gowns, and ventilators, the tooling used to manufacture these products may also need to meet FDA compliance standards. Depending on the product being manufactured, the tooling may need to be: Washed down using caustic chemicals, cleaned with high pressure steam, or sterilized with high Intensity Ultra Violet light or radiation.

Motion Control – FLUIDLINE Bearings, Pillow, and Flange Blocks From LM76 Are FDA/USDA and 3A-Dairy Compliant!

Motion Control – FDA/USDA and 3A-Dairy Compliant Bearings!

Motion Control - FDA compliant bearings


motion control - linear bearingsE. Longmeadow, MA – Motion Control Components – Linear Motion – Linear Motion – LM76 FluidLine Linear/Rotary bearings are FDA/USDA & 3A Dairy Complaint. They are also caustic wash down inert. FluidLine bearings one piece construction has benefits over traditional Teflon Composite lined aluminum bearings: if you have a wear situation, Teflon Composite Bearings have a .035″ Teflon Composite Liner. Once you wear through the liner, you are into the aluminum shell.

Motion Control – One Piece ETX Linear Bearing/Pillow Blocks Can Be Used In Radioactive Environments!

Motion Control – ETX Pillow Block/Bearings for Radioactive Environments

motion control pillow blocks/bearings

E. Longmeadow, MA Motion — Control Components – Linear Motion – LM76 now offers one piece ETX Linear Bearing/Pillow Blocks that will not degrade in a radioactive environment! Machined from a solid block of self lubricating ETX, linear bearing-blocks have high strength, excellent wear resistance, low coefficient of friction, and excellent dimensional stability at higher temperatures As there is no other materials such as PTFE seals or lubricants these bearing-blocks are maintenance free. Custom designed for use in a nuclear power plant these linear bearing/pillow blocks travel on ceramic coated shafting (also supplied by LM76) completely submerged in radioactive water.

To see the “Motion Control Application – ETX Pillow/Block Bearings for Radioactive Environments” CLICK HERE

motion control - lm76

Designed with a slight interference fit between bearing ID and shaft, contaminates are scraped from the shaft’s surface. The low frictional characteristics of ETX have little impact on drive force. They are now available in Inch and Metric sizes.

Motion Control – FDA/USDA/3A-Dairy Compliant ETX Scraper Seals for Linear Bearings Used In Food Processing Applications!

Motion Control – ETX Scrapers and Seals

E. Longmeadow, MA Motion — Control Components – Linear Motion – LM76 has introduced FDA/USDA/3-A Dairy compliant, snap-in ETX Scraper Seals for linear bearings. Machined from Ertalyte® PET-P, ETX Scraper Seals have high strength, excellent wear resistance, low coefficient of friction, and excellent dimensional stability at higher temperatures than seals from other materials. Designed with a slight interference fit between bearing ID and shaft, ETX Scraper Seals prevents contaminates and debris from migrating beneath the seal as it scrapes the shaft surface.

motion control - linear bearings

Ertalyte® PET-P’s low frictional characteristics have little impact on drive force. These FDA/USDA/3-A Dairy compliant scraper seals are ideal for: Pharmaceutical, medical, food, and dairy processing applications.

Motion Control – NEW! Super Wear Resistant FDA-USDA Compliant Cam Follower Bearings!

Motion Control – Cam Follower Bearings!

motion control - roller bearing cam followers

E. Longmeadow, MA –Motion Control – LM76 has introduced their RINO Series of FDA/USDA compliant Cam Follower Bearings. Available in 12 sizes these all new cam follower bearings integrate: Stainless steel studs, hybrid stainless steel/ceramic bearings, FDA approved Lubricant, and poly-crystalline non-metallic tires.
motion control - linear bearings
Mounted on stainless steel studs, LM76’s CERAMICSPEED hybrid radial bearings incorporate a stainless steel race and low friction ceramic balls that can handle high loads, are capable of high speed operation, and have an exceptionally long service life. The tire is formed from a super wear resistant poly-crystalline compound that has no soft spots and will not deform under pressure.

Motion Control – CERAMICSPEED Bearing Units Are FDA Compliant!

Motion Control – Ceramic Radial Bearings are FDA Compliant

motion control radial bearings
motion control - lm76

 

 

E. Longmeadow, MA – LM76 is continuing to expand its FDA compliant radial and linear bearing product lines. CERAMICSPEED Bearing Units are the latest additions. Bearings used in the food and beverage industry have to be reliable, easily cleaned, and require only minimal maintenance. CERAMICSPEED Bearing Units featuring FDA-approved Si3N4 (Silicon Nitride) balls have extremely long service life as Si3N4 balls are 2 times harder than steel balls and 4 times smoother. This means, CERAMICSPEED Bearing Units handle higher loads with less friction, resulting in longer life of the balls and the race.

Motion Control – COVID-19 … Important Information for Ventilator Manufacturers!

Motion Control – ATTENTION – Ventilator Manufacturers!

motion control - ventilator components

 

motion control - electromate logo

 

 

Vaughan, Ontario, Canada — Motion Control Components — COVID-19 has caused a significant shortage of ventilators for the most seriously ill patients. We are facing a global shortage of equipment and have precious little time to respond.

Electromate is a mechanical ventilator component supplier and works with a number of manufacturing partners that supply crucial components needed to build more ventilators.

These include:

  • HMI’s
  • Linear guides
  • Linear actuators
  • Screw assemblies
  • Compact gearboxes
  • High efficiency servo & stepper motors
  • Programmable motion controllers and drives

Our team of motion design experts are located all across Canada and are available right now to help you with any electro-mechanical ventilator design. If you are working on a ventilator involving rotary, linear, or any other motion, we will provide immediate help with electro-mechanical engineering and component sourcing. Contact us today.

We are already working with ventilator and respirator companies and encourage any other businesses working on COVID-19 solutions to reach out to us.

All inquiries regarding ventilator components or any other equipment to help battle COVID-19 are given utmost priority. We can help to optimize your design quickly and provide fast turnaround proposals as requested. Additionally, we are able to meet high production demands in a very short time by utlilizing ‘Medical Fast Track Programs’ -info.us@maxongroup.com from maxon, and other vendors.

Many of the products we sell to the medical technology sector have ISO 13485 certification. This certification confirms that these products adhere to the fundamental requirements of medical technology and that all processes and procedures are documented, thereby guaranteeing traceability.

In addition to helping with the design and acquisition of critical components used in ventilators and respirators, we also want to make you aware of initiatives that you may be able to utilize. Please read below to learn more about these programs and how you can assist with the COVID-19 cause.

CODE LIFE VENTILATOR CHALLANGE

The Montreal General Hospital Foundation, in collaboration with the Research Institute of the McGill University Health Centre (RI-MUHC), is launching a global innovation challenge, backed by a prize of $200,000 CAD. They are calling for teams to design a simple, low-cost, easy-to-manufacture and easy-to-maintain ventilator which could be deployed anywhere needed to save lives.

motion control - ventilator components

To learn more, please visit https://www.mghfoundation.com/en/news/code-life-ventilator-challenge/

 

 

MIT EMERGENCY VENTILATOR (E-VENT) PROJECT COPY

MIT has launched an emergency research project with a team of Engineers and American clinicians to address the question:

Is it possible to safely ventilate a COVID-19 patient by automatically actuating a manual resuscitator?

Their process in approaching this question is to first identify the minimum requirements for a low-cost ventilator, based on the collective wisdom of many clinicians, design against these requirements, conduct immediate testing, report the results, iterate and facilitate discussion.

motion control - medical components

To learn more, please visit https://e-vent.mit.edu/

 

 

About Electromate:

Electromate’s Core Purpose is to help Manufacturers build better machines using differentiated automation technology. They specialize in Robotic and Mechatronic Solutions for the Industrial Automation marketplace. Respected by customers as a premiere source for High Performance Automation and Motion Control Components & Systems, Electromate® specializes in AC & DC Servo and Stepper Motors & Drives, Motion & Automation Controllers, Positioning Systems & Actuators, Feedback Devices, Gearing Products and HMI’s & Operator Displays, all supported via extensive product selection, just-in-timedelivery, dedicated customer service and technical engineering support.

More on Electromate can be found at

Website: http://www.electromate.com

LinkedIn: https://www.linkedin.com/company-beta/209277/

Twitter: https://twitter.com/Electromate

Facebook: https://www.facebook.com/electromateindustrial/

Blog: https://electromate.wordpress.com/

motion control - electromate

For more information on the “Best Place to Work”CLICK HERE!

To view Electromate’s new corporate video CLICK HERE

For further information on this new product or others in our extensive product portfolio, call 1-877-SERVO99 (737-8699) or e-mail Warren Osak at sales@electromate.com or visit Electromate at: www.electromate.com


See this and other Motion Control Components from Electromate featured on:

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motion control - electromate

Linear Motion – Custom Manufacturing Of Complete Systems & Components by LM76!

Linear Motion – LM76 Expands Custom Manufacturing Capabilities!

 

linear Motion - Custom Machined components

Linear Motion - LM76-Pat-Logo-3

LM76 has greatly expanded their capabilities for machining of shafting and the manufacturing of complete systems and custom components.

linear Motion - Factory photos

 

To compliment the expanded manufacturing facility LM76 has developed a State-of-the-Art Inspection Lab as well.

Precision Shafting –

Specifiers can specify custom modifications to shafting …

Linear Motion - Shafting

RC60, 440c, 300 series Stainless Steel, and Ceramic Coated Aluminum, and other exotic materials shafting can be custom drilled, and supplied with custom ends.

For additional information go to:  

http://lm76.com/linear_shafting.htm

 Components, and …

 

Linear Motion - Shafting, Pillow Blocks, Bearings

For additional information go to:  http://www.lm76.com/General%20PDF%20For%20Web_opt(Autosaved)PDF2.pdf

… Complete Motion Control Systems!

 

Linear Motion - Complete Systems

Custom linear motion components and complete custom linear motion systems can be designed and fabricated to meet critical specifications for tooling from Aluminum or Stainless Steel.  Discuss you needs with LM76’s talented engineers for help with any linear motion problem including USDA/FDA applications.

 

For Additional information go to:

http://www.lm76.com/Linear%20Slide%20Catalog%202014.pdf

 

About LM76

Founded in 1976, LM76 has been a leading designer/manufacturer of linear bearings, slides and linear motion systems. LM76 is renowned for its industry leading Minuteman PTFE Composite linear bearings. LM76 is a leading supplier of precision linear shafting: RC60, 300 Series Stainless Steel, and ceramic-coated aluminum shafting. LM76 also offers several FDA/USDA compliant linear bearings and slides for the food processing, pharmaceutical, medical, and packaging industries.

For all of the LM76 Catalogs go to:

http://lm76.com/PDF%20Catalogs.htm

For additional information contact Mike Quinn at: LM76, 140 Industrial Dr., E. Longmeadow, MA 01028; Telephone: 413-525-4166, Fax: 413-525-3735 or E-Mail:mquinn@lm76.com or visit the website at http://www.lm76.com

See this and other Motion Control Components from LM76 featured on:
http://MotionShop.com
http://AllMotionBlogger.com
http://Automation-Blogger.com
http://motioncontrolBuyersGuide.com
http://MotionControlWeb.com
http://MotionShop.net
http://Catalogs-MotionControl

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Motion Control – FDA/USDA/3-A Dairy Compliant Linear Motion Components

Motion Control - Linear Motion - Fluidline Linear Bearings

 

Motion Control – Linear Motion – LM76 FluidLine Motion Control Linear/Rotary bearings are FDA/USDA & 3A Dairy Complaint. They are also caustic wash down inert. FluidLine bearings one piece construction has benefits over traditional Teflon Composite lined aluminum bearings: if you have a wear situation, Teflon Composite Bearings have a .035″ Teflon Composite Liner. Once you wear through the liner, you are into the aluminum shell. FluidLine bearings will simply wear more and more until they are too sloppy and can replaced at your convenience. They are also less expensive in volume because there are fewer manufacturing operations. We can easily design and produce special ID’s, OD’s, Lengths and features such as flanges.

For Additional Information:

Fluidline Linear Bearings (Description) CLICK HERE

Fluidline Linear Bearings (Catalog page) CLICK HERE

Electroless Nickel Pillow Blocks and Flange Blocks CLICK HERE

FDA/USDA/3-A Dairy Compliance Brochure CLICK HERE

Call Mike Quinn 1-800-513-3163 to find out if FluidLine is a good match for your application.

Or email: mquinn@lm76.com or visit the website at http://www.lm76.com

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Motion Control – FOODSTREAM Pillow and Flange Blocks Are FDA/USDA and 3A-Dairy Compliant!

Motion Control – FDA/USDA/3a Dairy Compliant Products

motion control - fda/usda compliant components
E. Longmeadow, MA — Motion Control Products – FDA/USDA/3A-Dairy Compliant Motion Control Components – Linear Motion – FOODSTREAM electroless Nickel plated pillow and flange blocks from LM76 are FDA/USDA/3A-Dairy compliant linear motion components.

motion control - linear bearings

They complement LM76’s line of FDA compliant bearings, scraper seals, and shafting. FOODSTREAM off-the-shelf pillow and flange blocks are ideal for use in processing and packaging food, producing pharmaceuticals, the BioPharma industry, and in medical devices. Inch size FOODSTREAM pillow blocks are available in single and double length sizes, and as closed or open models in sizes from .5 in. to 1.5 in. Electroless Nickel protects the aluminum base from corrosive liquids, harsh caustic wash down chemicals, and biological fluids.

Linear Motion Fluidline Bearings Available from LM76 are FDA/USDA/3A-Dairy Compliant!

Motion Control - LM76-Fluidline-FDA-USDA-Linear-Bearings

Motion Control - Linear components from LM76

Motion Control Linear Bearings

E. Longmeadow, MA — Motion Control – Linear Motion Bearings – FDA/USDA/3A compliant bearings, Seals, Shafting, and Pillow Blocks are available from LM76.

LM76 Fluidline BearingsTM are long wearing thermoplastic polyester self lubricating, low coefficient of friction, light weight linear bearings. Available off-the-shelf in standard closed inch sizes (closed metric sizes are available on request) these bearings drop-in replacements for standard linear bearings. They are highly resistant to wash-down chemicals and high energy radiation such as gamma and x-rays

These bearings exhibit very good dimensional stability, and creep resistance, excellent stain resistance, and physiologically inert and therefore suitable for food contact. They work well on stainless steel shafting and on the less expensive ceramic coated aluminum shafting also available from LM76.

Also available from LM76 are other FDA/USDA/3A compliant low cost linear bearings, in open and closed styles, compliant scrapers, stainless steel pillow blocks, and stainless steel and ceramic coated shafting.

About LM76

Founded in 1976, LM76 has been a leading designer/manufacturer of linear bearings, slides and linear motion systems. LM76 is renowned for its industry leading Minuteman PTFE Composite linear bearings. LM76 is a leading supplier of precision linear shafting: RC60, 300 Series Stainless Steel, and ceramic-coated aluminum shafting. LM76 also offers several FDA/USDA compliant linear bearings and slides for the food processing, pharmaceutical, medical, and packaging industries.

For additional information contact Mike Quinn at: LM76, 140 Industrial Dr., E. Longmeadow, MA 01028; Telephone: 413-525-4166, Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the website at http://www.lm76.com

LM76
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Motion Control – Low Cost, High Accuracy, Straight and Curved Rail & Roller Block Systems!

Linear Motion Control - LM76 SAIBO SB-LGV bearing System!

LM76

E. Longmeadow, MA –Linear Motion Control – Low cost, SAIBO SB-LGV Straight and Curved Rail & Roller Block Systems are available exclusively from LM76 in three widths, and two styles to meet load requirements up to 7200 N. (1619 lbs). These low profile linear and curved rail systems feature: Low noise, smooth travel, high speed, low weight, high accuracy, sealed radial low friction bearings, low cost, and easy installation into new and existing applications. Long life, SB-LGV Straight and Curved Rail & Roller Block Systems are available in lengths to 2000 mm (79 in.) and curved sections with radiuses from 79.5 mm (3.13 in.) to 516.5 mm (20.3 in.) in 90O, 180O, and 360O sections. With operating temperatures of -40O to +120O C (-40O to +248O F) they are ideal for use in: Robotics, laser cutting, wafer handling, and other precision applications, as well as assembly, pick-and-place, sorting, manufacturing, sampling, or packaging in refrigerated or high heat areas.

SAIBO SB-LGV Roller Blocks have an adjustable preload system to control the required level of precision needed for most applications, additionally Rail & Block Systems be mounted horizontally or vertically. There are 9 sizes of roller blocks for straight rails and 7 sizes for applications incorporating straight and curved rails. Each block has drilled and tapped holes for mounting tooling, cameras, test equipment, etc. The blocks’ rollers are available in harden steel to 60+ RC or in AISI 440 C Stainless. Straight and curved rails are precision ground from high carbon bearing steel hardened to 50 RC, straightness is to ≤ 0.05 mm/1000 mm.

Linear Motion Control - LM76 SAIBO SB-LGV Powered Bearing System!

LM76, the exclusive US distributor of SAIBO linear motion components, and also manufacturers a broad variety of FDA & USDA compliant bearings and shafting, in inch sizes of .25 inches to 1.5 inches, and a FDA & USDA compliant profile rail and slide system that can easily be integrated into new and existing applications. The bearing options include: Self-lubricating FDA & USDA compliant Teflon® composite bearings in a 304 stainless steel shell, and lower cost bearings with a ceramic coated shell and FDA & USDA compliant liner. Bearings are available in closed and open configurations, and are drop-in replacements for all inch sized linear ball bearings.

To go to the LM76-SAIBO Master Catalog Click Here!

Linear Motion Control - LM76 SAIBO SB-LGV bearing System!

About LM76

Founded in 1976, LM76 has been a leading designer/manufacturer of linear bearings, slides and linear motion systems. LM76 is renowned for its industry leading Minuteman PTFE Composite linear bearings. LM76 is a leading supplier of precision linear shafting: RC60, 300 Series Stainless Steel, and ceramic-coated aluminum shafting. LM76 also offers several FDA/USDA compliant linear bearings and slides for the food processing, pharmaceutical, medical, and packaging industries.

For additional information contact Mike Quinn at: LM76, 140 Industrial Dr., E. Longmeadow, MA 01028; Telephone: 413-525-4166, Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the website at http://www.lm76.com

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Motion Control Application – Polishing Machine’s Linear Ball Bearing Failures Solved by LM76!

Linear Motion Control  - LM76 Application - Polished Hub Cap!

LM76

E. Longmeadow, MA – -Linear Motion Application Story …

The Application –

Polishing Aluminum Truck Wheels is done with a polishing machine that has a 36″ vertical stroke indexer, having a 2500 pound load moving @ 4″ per second. The polishing media is like toothpaste with glass in it. It is extremely abrasive, and sticky/tacky.

Linear Motion Control  - LM76 Application - Hub Cap Polishing Machine!

The Problem –

The industrial buffing system is chewing-up linear ball bearings and spitting them out every 2 weeks! This is the situation one of customers found themselves in while for years accepting lost production and costly maintenance shutdowns. When LM76 got a call from a proactive new maintenance manager, we were eager to try a scraper seal design we had recently had success with on another application.

Originally, these systems came with protective bellows which helped keep polishing media from contaminating the 2″ linear ball bearing pillow blocks. According to our maintenance manager, once a bellow was damaged, it was removed and thrown away. Maintenance personnel so disliked having to take off and reinstall bellows that they mysteriously disappeared. Even with protective bellows, aluminum dust mixed with polishing media formed what one mechanic termed, “toothpaste with glass in it.”This abrasive “lapping compound”would stick to shafting, dry and semi-harden. As a bearing rolled along, polishing media would penetrate it’s seals “sliming” balls and clogging ball tracks. This would quickly lead to bearing failure and shaft brinneling (grooving). Needless to mention, routinely replacing linear ball bearings and more costly shafting was too much for the new maintenance manager who called LM76 for help.

The Solution –

Linear Motion Control  - LM76 Application - Black Racer Linear Bearing!

For this application, we chose our Black Racer Ceramic Coated Linear Bearing. This bearing is extremely tough, is of one piece construction (no mechanical components, no catastrophic failure mode or shaft grooving) and has the longest life test we know of on record. Like linear ball bearings, Black Racer requires lubrication.

John Tarbell (President of LM76), specified a zero clearance beryllium copper scraper seal. Beryllium copper is exceptionally ridgid, extremely hard and wear resistant. The Beryllium copper would trap lubricant and distribute it as a fine, uniform film on the shaft. This film reduces friction, disperses heat and wets shafting. The wetted shaft surface forms a barrier between media and steel – keeping polishing media from cleating into disparities on the shaft (remaining peaks and valleys). Tarbel, said, “A Zamboni doesn’t lay down an inch of ice, it fills in the skate marks.” When the scraper travels on the shaft, it easily lifts the media and moves it along to the end of the stroke. Unlike linear ball bearings, Black Racer has no balls so some residual “slime” is easily accommodated. (Seen below, the beryllium scraper seal is captured between the bearing counter-bored face and the machined steel end cap.) Admittedly, a heavy interference fit dramatically raised system friction but was mitigated because the system is hydraulically driven – driving force is not an issue.

Staying within the form factor of the original OEM design–standard roundway pillow block and shafting–we chose our direct drop-in 2″ closed pillow block and Black Racer Ceramic Coated bearing coupled with our 2″, Class L Rc60 Case Hardened Shafting. Tarbell then designed a steel end cap retainer ring that pinned the beryllium scraper seal against the bearing face.

Note: The bearing leading and trailing faces have machined counter-bores to locate and capture the back of the scraper seal. To keep the retainer ring secured to the pillow block, set screws were positioned on both sides and driven into a slot machined into the OD surface.

Linear Motion Control  - LM76 Application - Mounting a Black Racer Bearing in the Pillow Block!

Linear Motion Control  - LM76 Application - Cutaway showing: Bearing, Pillow Block,Scraper, and seal!

Founded in 1976, LM76 has been a leading designer/manufacturer of linear bearings, slides and linear motion systems. LM76 is renowned for its industry leading Minuteman PTFE Composite linear bearings. LM76 is a leading supplier of precision linear shafting: RC60, 300 Series Stainless Steel, and ceramic-coated aluminum shafting. LM76 also offers several FDA/USDA compliant linear bearings and slides for the food processing, pharmaceutical, medical, and packaging industries.

For additional information contact Mike Quinn at: LM76, 140 Industrial Dr., E. Longmeadow, MA 01028; Telephone: 413-525-4166, Fax: 413-525-3735 or E-Mail:mquinn@lm76.com or visit the website at http://www.lm76.com

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