Category Archives: Rails – Partial Extension

Motion Control – USDA Certified Stand-Off Bearing Flange Blocks with Si3N4 Silicon Nitride Hybrid Bearings, Set New Standard for Performance and Hygienics!

Motion Control – USDA Certified Stand-Off Bearing Flange Blocks

motion control usda certified flange blocks
motion control - linear motion products

 

 

E. Longmeadow, MA – Motion Control – FDA/USDA Certified, two, three and four post, Stand-Off Bearing Flange Blocks are setting a new standard for performance and Hygienics. These new Stand-off bearing flange blocks now available from LM76 reduce the surface area where mold and bacteria can thrive, even from the most through sanitizing operations. Long life Hybrid Stainless Steel Si3N4 Silicon Nitride Ceramic Ball Bearings in Stainless Steel bearing blocks are coated with a smooth non-water absorbing polyamide coating certified by EHEDG, USDA, and 3-A.

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

Motion Control – High Speed Block and Rail Sets
motion control - linear block & rail

motion control - linear motion products

 

 

E. Longmeadow, MA – Motion Control – Two new 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).

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

Motion Control Application – Truck Wheel Buffing Machines

motion control - lm76 application

motion control - linear motion products

 

The Application –

Motion Control – 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.
motion control - wheel buffing

The Problem –

The industrial buffing system is chewing-up motion control 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 –

motion control - black racer bearing

For this application, we chose our motion control 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.

motion control - blackracer pillow block

motion control - pillow block bearing assembly

 

 

 

 

 

 

 

 

To follow the NEW Series from LM76, THE ENGINEERING EDGE! and learn about interesting Outside-of-the-Box solutions developed by LM76 to solve some interesting linear motion problems! CLICK HERE

motion control - engineering edge

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

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


See this and other Motion Control Components from LM76 featured on:

The LM76 Blog

LM76 Catalogs

http://MotionShop.com

http://LinearMotionBlogger.com

http://AllMotionBlogger.com

http://Automation-Blogger.com

http://MotionControlBlogger.com

http://motioncontrolBuyersGuide.com

http://MotionControlWeb.com

http://MotionShop.net

http://Catalogs-MotionControl.com

motion control - linear bearings

 

Motion Control – LM76’s SLIDE RAIL 2 Featuring Advanced INJECT2 Technology!

Motion Control – Advanced Block & Rail System

motion control - linear slides

motion control - 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.

Motion Control – The Engineering Edge – FDA/USDA/3A-Dairy Compliant Linear Motion Bearings!

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

motion control - metric linear bearings
LM76 offers Metric FDA/USDA/3A-Dairy compliant self-lubricating linear bearings for: Food Processing, Packaging, Bio/Pharmaceutical, and Medical Systems!

Motion Control System for Semiconductor Manufacturer Withstands Corrosive Vapors In Plating Operation!

Motion Control – Stages for Corrosive Environments

Linear Motion System from LM76 for corrosive Plating Line

motion control - linear motion products

Linear Motion – The above twin Linear slide system was designed for a large manufacturer of semiconductors. The vapors from a plating operation were so corrosive that linear components were failing within months of installation. LM76 designed a motion control system which was predominately stainless while some components were nickel plated.  LM76’s polymatrix, ball screw nut was a major improvement over a competitor’s system which employed a standard re-circulating ball nut.

Motion Control – Precision “Zero Clearance,” Smooth Sliding Partial Extension Rails Available from LM76!

Motion Control – Extension Rail Systems

motion control - extension rails

LM76

E. Longmeadow, MA Motion — Control Components – Linear Motion – As the exclusive distributor of SAIBO Linear Motion Systems in the US, LM76 is offering the SAIBO TPE28 and TPE43 series of Partial Extension Rails. These compact, precision, smooth sliding rails are assembled with a zero clearance. The TPE28 and TPE43 Partial Extension Rail series are created using a “C” shaped external rail and an internal slider. Two rows of steel ball bearings (one on the top and bottom of the slider) travel in ball cages on hardened “V” shaped ways with four points of contact. These Partial Extension Rails are Ideally suited for applications requiring smooth motion such as: Material handling, rail systems in trains, aircraft, ships, trucks, and autonomous vehicles, wafer handling, delicate parts transfer, assembly, testing, laser machining and drilling.

The TPE28 series of Partial Extension Rails consists of 14 rails with stroke lengths from 72 mm (2.834 in) to 601 mm (23.661 in.) and supporting loads from 1224 N (275 lbs) to 15,166 N (3409 lbs) when two rails are mounted in parallel and the load is uniformly distributed between the rails. The TPE43 series of Partial Extension Rails consists of 23 rails with stroke lengths from 123 mm (4.842 in) to 1013 mm (39.881 in.) and supporting loads from 3192 N (717 lbs) to 48460 N (10,894 lbs) when two rails are mounted in parallel and the load is uniformly distributed between the rails. Stroke lengths (extension) are typically 51% of the length of the assembly.

These industry standard Partial Extension Rails are ideal for use in new and existing applications. Both the TPE28 and TPE43 Partial Extension Rails have a maximum working speed of 0.8 m/sec. (xxx in/sec )and have an operating temperature range of -20OC (-20OF) to 120OC (-20OF). For complete information on the assembly, loads, and stroke lengths for each series and additional details consult the factory.

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.

To follow the NEW Series from LM76, THE ENGINEERING EDGE! and learn about interesting Outside-of-the-Box solutions developed by LM76 to solve some interesting linear motion problems! CLICK HERE

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

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


See this and other Motion Control Components from LM76 featured on:

http://MotionShop.com.com

http://AllMotionBlogger.com

http://Automation-Blogger.com

http://MotionControlBlogger.com

http://motioncontrolBuyersGuide.com

http://MotionControlWeb.com

http://MotionShop.net

http://Catalogs-MotionControl.com

http://MotionControlMarketing.com

http://Gotcha-Stick.com

 

 

 

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