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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 - linear motion products

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 slides

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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. Read more »

The Engineering Edge – What’s the Difference?

Motion Control – Linear Bearings Compared

motion control - ceramic linear bearings
E. Longmeadow, MA – 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. Read more »

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

Linear Motion – LM76 Expands Custom Manufacturing Capabilities!

 

Linear Motion - LM76 - Machined-Components and Systems

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. Read more »

The Engineering Edge – Custom FDA Compliant Linear Bearings!

Motion Control – Custom FDA/USDA Compliant Linear Bearings
The Engineering Edge from LM76

“If we don’t have the FDA Compliant linear bearing for your application, we’ll design and make one.”  Call me at 413-525-4166, Fax: 413-525-3735 or E-Mail: mquinn@lm76.com! Read more »

How Would You Position Components Of An Experimental Reactor Vessel Weighing 33 Tons?

Motion Control – Linear Motion Application


Easily …   … Using Custom made LM76 Jet Rail Bearings and Shafting!

When a privately funded research company was ready to move from their original Proof of Concept to a sustainable fusion reactor to produce clean sustainable energy, they realized that extremely heavy components would need to be assembled and disassembled and reassembled again for design modifications and maintenance. The completed assembly would be the length of two buses and easy alignment of the individual components would be critical.

 

The main reactor, the fusion containment chamber that is capable of containing a plasma medium of 10 to 15 million degrees is made of non-magnetic stainless steel as are many of the components. The Plasma Medium could be described as a football shaped blob about 1 meter in diameter by 2 meters long. The plasma medium is injected from each end of the reactor assembly by Plasma Guns. Read more »

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

Motion Control – Bearing/Pillow Blocks for Radioactive Environment

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 - linear motion products

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

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. Read more »

Motion Control – NEW! High Speed Integrated Bearing and Drive System Features +/- 5 Microm Repeatability!

Motion Control – High Speed Integrated Bearing and Drive System

motion control - lm76 drive system

E. Longmeadow, MA –Motion Control – LM76 is the Exclusive North American Distributor of a new high speed integrated bearing and drive system featuring +/- 5 micron repeatability, and zero backlash! This new X-Axis BE125-10 Open Screw Drive System sets new standards for: Length of travel, speed, and precision for Cartesian Robots (robots that move in X,Y and Z axes according to Cartesian Coordinates also know as rectangular coordinates) and single axis linear stages!

motion control - linear motion products

The new X-Axis BE125-10 Open Screw Drive System is a compact linear stage measuring 125 mm (4.921 in.) wide x 86 mm (3.386 in.) high x 4391 mm (172.874 in.) long and can handle dynamic loads to 500 kg (1102 lbs). The standard stroke length is 4000 mm (157.480 in.) and custom stroke lengths to 10 m (32.8 ft) can be specified.

This new drive system consists of a precision ground open screw and two pre-loaded radial ball bearings additionally the open screw drive system is supported by bearings spaced every 250 mm that prevent screws as long as 10 m from whipping even at 5000 rpms. This is in contrast to a closed screw system (ball screw and nut) which are more limited as to length of travel and rpms.

Shafting options include: Solid and hollow Class L RC60, 300 series stainless steel in lengths to 12 feet. FDA/USDA/3A-Dairy compliant, shafting features: Excellent corrosion and chemical resistance, custom machining to print, pre-drilling and assembly.The guide system consists of two parallel shafts and 8 preloaded radial bearings. In addition to smooth motion, low vibration, low noise (less than 68db at 3000 rpm), and minimal heat generation the BE125-10 Open Screw Drive System is capable of travel speed up to 1.7 m/sec (5.5 ft/sec). and pitch and yaw accuracy over 4000 mm (157.480 in.) of travel is just +/- 0.02 mm (0.00079 in).

Get the high precision X Axis BE125-10 Open Screw Drive System for higher throughput, and guaranteed longer life in: Pick-and-place, sorting, packaging, assembly, machining, and testing applications. This complete linear stage and drive system is easily integrated in new and existing applications.

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

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

The LM76 Blog

LM76 Catalogs

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

LM76

 

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!

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.

motion control - linear motion products

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.

Ordering custom FDA compliant linear motion slides and XYZ stages can result in long delays. As an alternative, many companies have linear motion slides in stock for immediate delivery, however, they may not be FDA compliant. In many cases it is the bearings that are not in compliance. LM76 manufactures several types of FDA compliant linear bearings and pillow blocks that are drop-in-replacements for existing bearings. FDA compliant bearings and pillow blocks from LM76 will not trap contaminating debris and can be thoroughly sanitized following Sanitation StandardOperating Procedures (SSOPs). SSOPs are detailed schedules and procedures specifying what to clean, how to clean, how often to clean, and the record keeping used for monitoring.

A helpful component selection guide from LM76, “Linear Bearings, 6 Simple Steps – FDA Compliance, Wash Down Compliance,” details the linear motion components available from LM76 that are FDA/UDSA/3A-Dairy compliant. Included are: Foodstream electroless nickel plated pillow blocks, PTFE lined stainless steel bearings, ceramic coated linear bearings, self-aligning corrosion resistant linear ball bearings, and Thomson® Super SmartTM corrosion resistant, self-aligning, high load linear ball bearings, and solid ETX pillow block/bearings. Shafting to compliment the type of bearing selected includes: Class L Stainless 303/304/316, 440C case hardened stainless, Rc 60 case hardened steel with an Armoloy coating and also Rc78 Class L for enhanced hardness and wear resistance. End blocks and shaft supports that have a ceramic or electroless nickel coating are also available, as well as new ETX Scraper Seals that prevents intrusion of contaminates adding another line of defense.

LM76 also designs and custom builds linear slides from Stainless Steel and other FDA wash down compliant materials.

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


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

The LM76 Blog

LM76 Catalogs

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

motion control - linear bearings

 

Motion Control – CERAMICSPEED Bearing Units Are FDA Compliant!

Motion Control – Ceramic Radial Bearings are FDA Compliant

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.

motion control - linear motion products

This means, CERAMICSPEED Bearing Units handle higher loads with less friction, resulting in longer life of the balls and the race. Balls made from Silicon Nitride do not change their shape under load and are not subject to spalling which can contaminate the foods or beverages being processed. They are also very tolerant of temperature extremes (-30OC to 100OC) and thermal shock.

CERAMICSPEED Bearing Units have also been designed with rounded surfaces and are then covered with polyurethane to create an smooth impenetrable surface where debris, bacteria, water and other liquids cannot collect. Available in standard styles and sizes, these low maintenance bearings are shipped lubricated with and FDA approved grease or with a proprietary SLT lubricant created to be extremely durable and maintenance free for extremely harsh environments.

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


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

The LM76 Blog

LM76 Catalogs

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

motion control - linear bearings