MRO Magazine

BSA’s latest bearing brief explains linear motors

Glen Ellyn, IL -- The Bearing Specialists Association (BSA) has announced publication of its latest Bearing Br...


April 15, 2010
By MRO Magazine

Glen Ellyn, IL — The Bearing Specialists Association (BSA) has announced publication of its latest Bearing Brief, A Guide to Linear Motors. Linear motors are found in those applications where high speed, accuracy or repeatability are required. As the Bearing Brief points out, mechanically driven linear products may have some of these attributes, but only linear motors can have all of them.

A Guide to Linear Motors distinguishes between voice coil, force tube, stepper, hybrid, brush dc, induction, and synchronous linear motors and includes a quick selection guide and an easy-to-read chart of properties for each motor type.

Bearing Briefs are ideal references on the shop floor and as a pass-along to end users. BSA offers its special thanks to John Long, applications engineer, NSK Precision America Inc., for authoring this Bearing Brief, and to Baldor/Dodge/Reliance and the Schaeffler Group for providing graphics.

Like all BSA Bearing Briefs, A Guide to Linear Motors is available for free download from the Tools You Can Use link on the BSA website at


It’s the latest in a series of more than 20 free, single-topic user bulletins designed to deliver expertise to meet the needs of the end user as well as bearing industry professionals.

Bearing Briefs are a program of BSA’s Educational Services Committee. These special bulletins present summarized information on topics of interest to the bearings industry. Previous reports have included Bearing Repair, Bearing Installation Fitting, Ceramic Bearings, Wear Sleeves and Other Shaft Repair Options, Vibration Analysis, Seal Selection, Load Ratings and Bearing Life, The Domestic Bearing Industry: Investing in the Future, Status of Bearing Load Ratings, History of Adhesives, Plane Bearings, A Brief History of Bearings, Linear Bearings, Bearings for the Food and Beverage Industry, Ball Screws as Positioning Actuators, Spherical Plane Bearings, Planetary Roller Screws, Split Roller Bearing Technology, Bearing Mounting Tools, Reduced Operating Costs Through Condition Monitoring, Understanding Linear Actuators, Smart Bearing Technology, and The Best-Kept Secret in “Green” Technology. Bearing Briefs are just one of a variety of education and training programs and publications provided by the Association.

For more information on BSA contact the BSA office at (630) 858-3838; fax (630) 790-3095; email or visit the association website at