Machine Design

Precision Cylindrical-Roller Bearings

New precision cylindrical-roller bearings for screw drives and rotary tables manage axial, radial, and moment loads. The screw-drive bearings combine axial cylindrical rollers and radial needle rollers for high-speed operation. Rotary-table bearings use an L-shaped inner ring, shaft washer, outer ring, two thrust-roller-cage assemblies, and a radial full-complement row. The screw-drive bearing series includes five designs from 15 to 90-mm ID, and the rotary-table bearing series goes from 80 to 460-mm ID.

The Timken Co., 1835 Dueber Ave. SW, Canton, OH 44706, (330) 438-3000,

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