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

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

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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:

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

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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

Overview-Mini-Slide-08-01

LM76
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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

Overview-Mini-Slide-08-01

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

And say, “I saw it on MotionShop.com, “The Motion Control Home Page.”

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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

 

Order Low Coefficient of Friction Linear Bearings from LM76 Today!

low coefficient of friction linear bearings

For additional information on low coefficient of friction linear bearings from LM76 See:

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

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

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

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

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

Founded in 1976, LM76 has been a leading designer/manufacturer of low coefficient of friction 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 Web site at http://www.lm76.com

 

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

LM76

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 Application Ball Joint

 

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.

LM76's Linear Motion Black racer bearings

LM76’s high speed, “Black Racer,” ceramic coated linear bearings out perform linear ball bushing and linear polymer bearings in high speed and high acceleration/deceleration applications. These drop in replacement linear bearings are designed to be used in standard open and closed pillow blocks. “Black Racer” linear bearings are ideal for: Rocket sleds, crash test systems, and other high speed, high acceleration application.

Motion Control Application Ball Joint

Open and closed ceramic bearings are available in 12 inch sizes (0.250 in. to 4.000 in.) and 11 metric sizes (5 mm to 80 mm), and in LM76’s self aligning configuration, as well as their Lube/Plus DesignTM which incorporates an internal felt wiper to extend lubrication capabilities. A file hard RC 89 ceramic shell over an aluminum substrate has a coefficient of friction of .04 to .08 (1/3 the coefficient of friction polymer bearings), withstands up to 5000 PSI, 40,000 PV and unlimited SFM! Additionally, these bearings have a typical life expectancy of 100 million linear feet. Shafting options include RC60 steel shafting and other shafting options available from LM76.

Motion Control Application Ball Joint

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 on any of LM76’s tandard or custom engineered components contact Mike Quinn at: LM76, 140 Industrial Dr., E. Longmeadow, MA 01028; Telephone: 413-525-4166413-525-4166, Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the website at http://www.lm76.com

“Cheap” Linear Guide Systems Move 1200 Lb. Loads At Speeds Of 30 Feet Per-Second!

Linear Motion -LM76-TopShelf-Cheap

Linear Guide Systems Move 1200 Lb. Loads At Speeds Of 30 Feet Per-Second!

E. Longmeadow, MA – Two series of high speed, low cost, compact linear guide systems called, “Speed Guides,TM” have been introduced by LM76. The Speed Demon OSG type and Speed Demon SG type linear guide systems are designed for speeds up to 10 m/sec. (32.8 ft/sec.), accelerations to 50 m/sec.2 and loads up to 5600 N. (1259 lbs.). These quiet, low profile guide systems are ideal for: High speed assembly and sorting operations, pick and place robots, industrial, office, and packaging machines, vacuum applications, and medical equipment (including patient care devices).

The OSG type linear guide systems are available in five rail & block sizes. Each OSG rail features pre drilled mounting holes, dual RC60 steel shafting in lengths up to 4 Meters (13 ft.), and can be ordered cut to size. Each OSG block features 4 dual contact roller bearings with two bearings on eccentric mounts for easy clearance adjustments. Running straightness is just +/- 0.02mm (+/- .0008 in.) regardless of system length.

The SG type linear guide systems are available in seven rail sizes and 19 block designs in seven sizes to fit a wide range of applications. Each SG rail features pre drilled mounting holes, dual RC60 steel shafting in lengths up to 4 Meters (13 ft.), and can be ordered cut to size. SG blocks feature three to five dual contact roller bearings with one, two, or three bearings on eccentric mounts for easy clearance adjustments. Running straightness is just +/- 0.015mm (+/- .0006 in.) regardless of system length.

The OSG and SG type Speed Demon linear guide systems are ideal for use in X, Y or Z axes. Integral felt wipers, high angular dual contact bearings, and corrosion resistant materials permit installation in a broad range of adverse environments. Shafting options include RC60, 440C, and Chrome Plating. For easy integration into a new or existing application CAD drawings are available on the LM76 Website http://www.lm76.com.

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: 413-525-4166413-525-4166, Fax: 413-525-3735 or E-Mail: mquinn@lm76.com or visit the Web site at http://www.lm76.com

 

LM76’s FDA/USDA Compliant Linear Bearings Are – “THE” Only Solution!

Linear Motion - LM76-Pat Logo

 

Linear Motion - Only Solutions - Cheese Packaging

 

 

 

E. Longmeadow, MA – — What do you do when you’re linear actuator bearings are including cheese debris? Particularly when your cheese slicing system requires FDA/caustic washdown compliance and FDA inspectors are on site reviewing all process operations for included debris which can propagate harmful bacteria.

 

 

 

“THE” Application

  1. Repeated Impact with Dense, Malleable Product
  2. FDA Compliant Materials
  3. Caustic Washdown
  4. Self-Lubricating
  5. No Product Inclusion

“THE” Issues

Linear Motion - Only Solutions - LM76 Linear Bearing

Originally, our customer specified LM76’s standard stainless, FDA/PTFE linear bearings in their linear actuator. This bearing met all the fundamental requirements: FDA/Caustic Washdown compliance, self-lubricating and no catastrophic (mechanical) failure mode. Initially, we felt the standard running clearance between bearing ID and shaft (.001 overall, .0005” either side) would be sufficient to clear debris. Not so. Thus, we needed a seal that would be FDA compliant, have a low “K” or wear factor and low coefficient of friction so drive torque wouldn’t be negatively affected. Since standard industry nitrile and buna seals were never in contention, we had to design a “scraper seal” from scratch.

 

 

 

 

 

“THE” Solution

Linear Motion - Only Solutions - LM76 Stainless Steel & PTFE Bearing

John Tarbell (President and Internationally regarded Plain Bearing Expert) reviewed several materials and selected Ertalyte® PET-P because it met all criteria relative to FDA/Washdown compliancy, “K” (wear) factor, coefficient of friction, machinablilty and thermal expansion/contraction. The ETX seals were designed for a slight interference between bearing ID and shaft. In addition, a “spring area groove” was designed behind the scraper lip to allow for proper spring-flex action and to accommodate thermal expansion during operation. Lastly, undercuts were machined at both ends of the bearing shell to anchor the snap-in ETX scraper seals. Since the scraper lips are zero-clearance on the shaft, the interference fit prevents cheese residue from migrating beneath the seal as it scrapes the shaft surface.

Linear Motion - Only Solutions - LM76 Linear Bearings - Wire drawings

Linear Motion - Only Solutions - Comp Drawing

 

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

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