POWER TRANSMISSION CHAIN, AND POWER TRANSMISSION DEVICE

摘要

Provided is a power transmission chain and a power transmission device, in which noises and vibrations are made lower by optimizing the rolling contact face shape and the offset quantity of a pin to influence a pin end-face contact shape. A pin (14) having a rolling contact face (14a) of an involute curve is composed of two kinds having different involute curve radii (Rb), so that two kinds of offset quantities are set for the pin end-face shape to contact the conical face of a pulley. The combinations of large/small radii (Rb) of the involute curve and large/small offset quantities for each pin (14) are limited to any of large Rb - large offset, large Rb - small offset, and small Rb - small offset.