This paper considers two linear drive systems using pin gear mechanism(PGM), one is the RRP(roller rack pinion) system that consists of a roller rack and a cam pinion, the other is the CRP(cam rack pinion) system that consists of a cam rack and roller...
This paper considers two linear drive systems using pin gear mechanism(PGM), one is the RRP(roller rack pinion) system that consists of a roller rack and a cam pinion, the other is the CRP(cam rack pinion) system that consists of a cam rack and roller pinion. Through the comparison of contact forces and contact stresses between two linear drive systems, it reveals that the RRP system is superior to the CRP system in the aspet of the bending strength, while the CRP system has higher contact fatigue resistance than that of the RRP system.