Power transmission belt

摘要

A power transmission belt comprising a body comprising a first elastomeric material and having tensile members running in a longitudinal direction, the body having a pulley engaging region having a profile; characterized in that the pulley engaging region comprises a surface region and a subsurface region; the subsurface region comprising a second elastomeric material having a friction modifying agent; and the surface region comprising a nonwoven fabric material co-mingled with the second elastomeric material.

主权项

1. A belt comprising: a body and tensile members running in a longitudinal direction, the body having a pulley engaging region having a molded profile; the molded profile consisting of a surface layer around the profile, a main body portion comprising a first vulcanized elastomeric material, and a subsurface layer in between the surface layer and the main body portion; the subsurface layer consisting of a second vulcanized elastomeric material having a friction modifying agent; said first elastomeric material free of said friction modifying agent; and wherein the surface layer comprises a fibrous nonwoven fabric material co-mingled with the second elastomeric material; and wherein the friction modifying agent is a particulate solid or a non-blooming liquid.