Machine Design
Roller-Pinion System

Roller-Pinion System

The RPS rack is a roller-pinion system designed to eliminate the shortcomings of linear-drive systems. It replaces spur-gear teeth with bearing-supported rollers that engage a rack-tooth profile. The rollers eliminate sliding friction with smooth rolling friction for a 99%-efficient rotary to linear-motion conversion.

Two standard factory lengths per size create runs of any length. Full lengths are around 1 m in length and half-lengths around ½ m in length, depending on tooth pitch. The RPS features positional accuracy up to 30, 50 and 80 μm to accommodate any application’s precision requirement.

Nexen Group Inc., 560 Oak Grove Pkwy., Vadnais Heights MN 55127, (800) 843-7445

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