Aktiebolaget Skf

Thierry Prouteau

Philippe Weber

Pamphile Wilson

Cédric Narbonnais

Laurent Cherioux

Daniel Capoldi

Pascal Mauroy

Sebastien Schultz

Frederic Bordier

Jeremie Barillet

Christophe Daubignard

Tony Gaudrier

The invention relates to a method for manufacturing a pulley device for a tension roller or a roller of a transmission element providing a pulley, at least two rolling-element bearings and a sleeve, the rolling-element bearings being assembled adjacently on the sleeve before the pulley is formed by injecting material onto the rolling-element bearings.

Method for manufacturing a pulley device, a pulley device according to such a manufacturing method and an engine fitted with such a pulley

A tensioning device comprising a receiver housing, a lever arm mounted on the receiver housing and rotatable with respect to the receiver housing around a first rotation axis, a pulley mounted on the lever arm and rotatable with respect to the lever arm around a second rotation axis parallel to the first rotation axis, and a spring mounted between the receiver housing and the lever arm and adapted to apply a torque for rotating the lever arm around the first rotation axis. The receiver housing and the lever arm are screwed together around the first rotation axis. The spring applies an axial damping effort, parallel to the first axis, on cooperating threaded portions respectively provided on the receiver housing and on the lever arm.

Tensioning device and method for assembling such a tensioning device

The pulley device for a belt or chain tensioning idler or runner roller comprises a pulley (), a roller bearing (), a spacer () for the mounting of the rolling bearing () and being capable of pressing against an element external to the device, a fastening screw () immobilized axially relative to the spacer (), and at least one retaining ring () which is elastic radially and which is mounted inside a groove () made on the fastening screw (), a portion of the ring () protruding radially into a recess () of the spacer ().

Pulley device for tensioning idler or runner roller

A pulley device for a belt or chain tensioning or guide roller includes a pulley, a rolling bearing, and a spacer configured to support the rolling bearing and having a transverse mounting surface disposable against an external element. An attachment member includes a threaded portion with an outer diameter and a retaining ring is disposed on the attachment member and retains the attachment member axially relative to the spacer. The ring has an inner diameter lesser than the outer diameter of the threaded portion in a free state and opening such that the ring is radially deflectable. Preferably, the spacer has a recess extending from the mounting surface defined by a frustaconical surface tapering outwardly toward the mounting surface and a shoulder extending inwardly from the frustoconical surface, the ring being deflectable radially inwardly by the recess so as to be disposed generally against the shoulder of the recess.

Pulley device for a tensioning or guide roller

Growing community of inventors

Tours, France

Thierry Prouteau