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Linear Motion 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

LM76’s SLIDE RAIL 2 Featuring Advanced INJECT2 Technology!

Linear Motion Control  - LM76 INJECT2 Technology!  Comp photo

LM76

E. Longmeadow, MA – – Motion Control – Linear Motion – Advanced Linear Block and Rail System – SLIDE RAIL2 is both novel and innovative. Unlike injection molded, plastic-lined block and rail systems, INJECT2 Technology’s unique properties ensure higher loads, 1/2 the coefficient of friction and increased toughness for shock, vibration and contamination. INJECT2 Technology’s low friction, self-lubricating sliding surface guarantees smooth, quiet and contamination proof operation.

Linear Motion Control  - LM76 INJECT2 Technology!  SLIDE RAIL 2 Logo

SLIDE RAIL 2 begins with a machined aluminum carnage block and a ceramic coated aluminum extruded 20mm rail. The carriage and rail are mounted in a fixture and INJECT2 is injected between the block and rail. INJECT2 hardens and the rail and block are separated. No additional machining or bonding is required. INJECT2 penetrates the aluminum block forming a superior, tenacious bond which will not separate!

The benefits of INJECT2 Technology featured in SLIDE RAIL 2 are notable:

  • Self-Lubricating – Anti-Stick Slip
  • Up to 400 Surface Feet a Minute ‘Dependent on Loads
  • High Load/High Compression Strength 19,000 PSI
  • Low Friction .050 – .115
  • Quiet and Smooth Operation
  • Rapid Oscillation
  • Withstands Contaminates, Coolants and Wash-down Chemicals
  • Temperatures to 400F
  • Excellent for Shock & Vibration

Linear Motion Control  - LM76 INJECT2 Technology!  How its made

Linear Motion Control  - LM76 INJECT2 Technology!  Load data

Linear Motion Control  - LM76 INJECT2 Technology! Parallel rails

Linear Motion Control  - LM76 INJECT2 Technology! How to order

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

Linear Motion – Tiger Linear Bearings, Great for High Loads!

LM76-Tiger-Bearigs-02

LM76

E. Longmeadow, MA – Linear Motion – Tiger Bearings from LM76 are a tough maintenance-free option to traditional PTFE lined or injection molded plastic linear bearings.  Available as 3/4 inch and 1 inch closed bearings, these are the ideal bearings for high load applications up to 35,000 lbs. such as: Backhoes, front end loaders, marine davits/sheaves, valve stem bushings, hitches, hydraulic cylinder pivots, graders, and mining equipment.

Tiger Bearings, developed by LM76 engineers, are multi-layered.  These drop-in replacement bearings feature a standard diameter ceramic coated aluminum outer shell.  The innermost layer consists of a synthetic fiber/PTFE layer. The middle layer consists of epoxy-coated high-angle glass filaments, and the outer layer is of epoxy-coated low-angle glass filaments.  It is this multilayered design that withstands the crushing shock loads, environmental contamination, the simultaneous rotating and twisting motion, shaft misalignment, corrosive chemicals and high and low temperatures found in construction and marine environments.

The electrically insulated, layered Tiger Bearings are self-lubricating (coefficient of friction is just .02 to.25), operate in temperatures of -300O F to +300O F, and have very low water absorption (<.05%).  The layers of high angle and low angle epoxy coated glass filaments stabilize the bearings preventing “Creep” or “Cold Flow” under high pressure typical of standard PTFE bearings under high loads.

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: , Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the website at http://www.lm76.com

LM76
Order Our Catalog

LM76-Tiger-Bearigs-01
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 

LM76 – “The Masters of Low Friction Linear Motion”

Join Us At The:

 

– 2015 –

ATX-2014-Logo
See LM76 and our partner SAIBO
at ATX. See why we are

“The Masters of Low Friction
Linear Motion” 


Anaheim Convention Center,
Anaheim, CA
Date: Feb.10-12, 2015
Our Booth number: 4567

Announcing our  SB-LGV “V” Roller Straight, Curved  and  Ring Roller System

 

Register Here for ATX WEST!

About LM76
LM76 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.

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 Teflon® 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.

Linear Motion Bearings & Systems Overviews

 

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

 

LM76
Order Our Catalog

Linear Motion Application – Loading Dock’s Corrosion Problem – Solved by LM76!

LM76

E. Longmeadow, MA – Linear Motion Application

The Problem –

Linear Motion Control  - LM76 Application - Loading Dock Problem Solved!

An LM76 customer is a manufacturer of loading dock ramps. These systems are installed in every state and experience all climates and conditions. Each dock section employs a 1″ shaft and linear bearings for length adjustment. Delivery trucks are side-loaded so the platform is adjusted outward to meet the truck body so loaders/unloaders have a safe walkway between building and truck. If the ramp cannot be properly adjusted because its rusted, frozen solid, gaps between the loading dock and the truck body become fall-through hazards for workers.

Why is this system failing? In many northern facilities, accumulated snow and ice are sprayed down with glycol and then salt. The system originally used Rc60, 1060 steel shafting and standard steel shelled, 52 100 linear ball bearings. A bad choice for such a tough, corrosive environment. Quickly, these systems were rendered useless, frozen in place, and hazardous.

The Answer –

Linear Motion Control  - LM76 Application - Loading Dock Problem Solution!

LM76 was called to review the situation and asked to come up with a recommendation. Given that their customers had a very large installed base, the cost of changing out the design format with a new design was out of the question. Thus, LM76 had to come up with the best possible fix that would allow for a fast and uncomplicated field retrofit package.

First, LM76 changed out the original steel shaft with a 44c stainless steel shaft. Although the 440c is more corrosive resistant than the steel, it has carbon introduced into its chemistry so that it can be case hardened (required for linear bearings). For additional hardness (fromRc60 to Rc78) and superlative corrosion resistance we coated the shaft with a special thin dense chrome. For a direct plug-in bearing LM76 chose a 440c stainless steel linear ball bearing with special scraper seals.

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: , Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the website at http://www.lm76.com

LM76
Order Our Catalog

Linear Motion – We Want To Get To Know You Better!

We want to get to know you better so we can better serve your needs. It goes without saying that OEM Purchasing has a different set of needs than Design Engineering. Thus we have broken our customer base into 4 categories: OEM Purchasing, Design/Mechanical Engineering, Bearing Distribution and MRO Maintenance. Beginning in January 2015, we will create blog pages and RSS Feeds tailored to each group. Your feedback is critical in making this program a success:Tell us what you need

Tell us what you expect and let us do the rest.


OEM Purchasing
Fill-out our survey and get a free copy of Best Linear Buying Practices

Design/Manufacturing Engineering
Fill-out our survey and get a copy of our latest engineering solution white paper

Bearing Distributors
Fill-out our survey and get a copy of our 2014 Distributor policy

MRO Maintenance
Fill-out our survey
and get our MRO Policy

LM76 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.

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 Teflon® 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.

Linear Motion Bearings & Systems Overviews

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

LM76
Visit our Website
Order Our Catalog

Linear Motion – Roll-Slide Mini from LM76

Linear Motion Roller Slide Assembly

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Linear Motion Low Cost Slide System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LM76-Roll-Slide-Mini-03

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LM76 Low Cost Linear Motion System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Linear Motion System compared

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Application – Camera Slider

Linear Motion Camera Slider

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Linear Motion System Application Chart

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LM76 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.

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 Teflon® 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.

Linear Motion Bearings & Systems Overviews

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

LM76
Visit our Website
Order Our Catalog

Linear Motion – Low Cost, High Speed Linear Roller Blocks and Rail Systems!

SAIBO-LGA-Roller-Block -and-Rail-Systems

LM76

E. Longmeadow, MA – Linear Motion – LM76 is the exclusive distributor of SAIBO Linear Motion Systems in the US. SAIBO SB-LGA Roller Block and Rail Systems feature: Low noise, smooth travel, high speed to 10 m/s (120 ft/s), high acceleration to 50 m/s (150 ft/s), low weight, high accuracy, low friction, low cost, and easy installation into new and existing applications. SB-LGA systems are available in three sizes to meet load requirements up to 1200 N. (270 lbs) and lengths to 4000 mm (157 in.)

SAIBO SB-LGA Roller Block and Rail Systems have an adjustable preload system to control the required level of precision needed for most applications. For use in: Robotics, assembly, pick-and-place, sorting, packaging, manufacturing, sampling, laser cutting, wafer handling, and other precision applications. The rail systems are protected from debris, dust, chips, and contaminates by oil filled felt pads held in place by spring loaded plastic end caps. The felt wiper pads also deliver lubrication to the guide and rollers. The wipers are easily relubricated through convenient oil ports in the end caps.

LM76, the exclusive US distributor of SAIBO linear motion components, 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.

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 Teflon® 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
Visit our Website
Order Our Catalog

LM76’s Black Racer Bearings Are the Bearings of Choice for Mattress Manufacturer!

The high speed, short stroke, and the dust & debris of a mattress stitching machine proved too much for linear ball bearings! The contamination and short stroke length did not allow the bearing to circulate and caused premature failure.

E. Longmeadow, MA – — LM76’s solution to problem was to replace the linear ball bearings with the ceramic coated “Black Racer Ceramic Linear Bearings” linear bearings. These linear bearings have a Coefficient of Friction of just .04 (lubricated). LM76 offers 5 of the the 6 Lowest Coefficient-of-Friction bearings and bearing systems available. Follow the links below and contact LM76 for help in selecting the best bearing or bearing system for your application.

For additional information on all of LM76’s low coefficient of friction linear bearings from LM76 See

“Linear Ball Bearings” with a Coefficient of Friction of .001 Click Here.

“Linear Roller Blocks” with a Coefficient of Friction of .003 Click Here.

“Black Racer Ceramic Linear Bearings” with a Coefficient of Friction of .04 (lubricated) Click Here.

“Minute Man Linear Bearings” with a Coefficient of Friction of .19 (Dry) Click Here.

“WDX Non-Metalic Self Lubricating Bearings” with a Coefficient of Friction of .2 (Dry) Click Here.

Motion Control Off-Road Suspension System

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 Teflon® 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: , Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the website at http://www.lm76.com

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LM76 Is the Source for SAIBO Linear Roller Systems

LM76-Pat-Logo-3

 

 

 

Motion Control Linear Guides

Linear Motion – Linear Roller Systems – SAIBO is located in Wuxi, China. Wuxi, China is famous for being one of the birthplaces of China’s modern industry. SAIBO is a leading designer/manufacturer of linear motion components and systems. SAIBO means “Always Reach for Higher Goals.” SAIBO is committed to excellence and linear motion innovation while guaranteeing its customers the best pricing in our industry.

LM76 and SAIBO actively seek to work with you on your next design and promise the following:

The Right Product for Your Application
A Quality Product You Can Trust
Engineering Assistance that is Proven and World Renown

Linear Guides - Linear Motion ContrplIn the U.S. call LM76, SAIBO’s distribution partner for pricing, engineering assistance and the highest quality service.

 

Linear Motion Systems

 

 

To request the SAIBO “Linear Roller Systems” PDF Catalog Click Here!

 

 

 

 

 

 

 

 

 

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 Web site at http://www.lm76.com