Linear Motion Guides feature rail widths down to 1 mm.

Press Release Summary:

Ultra-Compact RSR Series includes Type RSR1M (1 mm rail width) and Type RSR2M (2-4 mm rail width), which feature minimal rolling resistance and 4-way equal load ratings. Built with martensitic stainless steel blocks, rails, and balls, products are suited for use in harsh environments. Blocks measure from 6.2-17 mm long, 4-10 mm wide, and 2.5-4 mm high with dynamic and static load ratings of 37-307 N and 58-435 N, respectively.

Original Press Release:

THK Makes Big News with Unveiling of World's Smallest LM Guide

Schaumburg, IL - (February 9, 2006) Well-established as the leading linear motion innovator, THK has once again captured industry attention with the introduction of the world's smallest linear motion guide. Featuring a rail width of 1mm, the Type RSR1M is the only LM Guide of its size available anywhere in the world.

The Type RSR1M and the Type RSR2M (2 - 4mm rail width) were developed by THK engineers in response to today's increasing demand for decreased design sizes. The Ultra-Compact RSR Series features minimal rolling resistance and 4-way equal load ratings. Martensitic stainless steel blocks, rails and balls allow for use in harsh environments. Type RSR heights range from 2.5 - 4 mm; block widths are from 4 - 10mm; and block lengths range from 6.2 - 17mm. Basic dynamic and static load ratings are 37 - 307N and 58 - 435N respectively.

THK's Type RSR is ideal for a variety of applications requiring precise movement, including medical equipment, semiconductor equipment, and measuring instruments.

To learn more, log on to or contact THK America, Inc., 200 E. Commerce Dr., Schaumburg, IL 60173, Phone: (847) 310-1111, Fax: (847) 310-1182, e-mail:

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