Idler pulley
AssigneeNtn Corporation
InventorsYoshio Kato, Motoharu Niki, Tsutomu Mizutani, Tadahisa Suzuki, Yoshiaki Suzuki, Masahiro Muranaka, Takahiro Koremoto, Masao Fukuwaka
Life of this patent
Estimating the term…
Abstract
This idler pulley includes a pulley body 1 made, e.g., by pressing a steel plate, and a ball bearing 2 fitted in the inner diameter of the pulley body 1. The contact position Z on the pulley peripheral surface 1a1 of the pulley body to be contacted by the belt center and the bearing centerline Y of the ball bearing 2 are axially offset by an amount .delta..
Claims9
An idler pulley wherein a pulley body having a pulley peripheral surface to be contacted by a belt is fitted on an outer diameter of an outer race of a ball bearing or a pulley peripheral surface to be contacted by a belt is integrally formed on an outer diameter of an outer race of a ball bearing, said idler pulley being characterized in that
- rolling elements of said ball bearing are in contact with raceway surfaces of an inner race and said outer race of said ball bearing which have a predetermined inclination defined therebetween.
An idler pulley wherein a pulley body having a pulley peripheral surface to be contacted by a belt is fitted on an outer diameter of an outer race of at least one ball bearing of a ball bearing assembly, said idler pulley being characterized in that said at least one ball bearing is axially preloaded.
Dependencies are inferred from the claim text.