Patent ID: 6039664
Filing Date: 2000-03-21
Classification: F16C,F16H

Abstract:
A tensioner for a traction element for belt drives of automotive vehicles, comprising a tension roller (3), for a tension lever (2) associated to the traction element, a mounting lug (5) of said tension lever (2) being pivoted by a radial bearing (13) on an axle (6) provided on an engine block (4), and axial stops for the mounting lug (5) being arranged on both ends of the mounting lug (5), the tensioner further comprising a tension spring element (1) acting at one end on the tension lever (2) and at a second end on the engine block (4), characterized in that sealing rings (12) are provided on both axial ends of the mounting lug (5), which sealing rings (12) seal the radial bearing (13) at front ends thereof and project axially beyond end surfaces of the mounting lug (5), an axial distance between the axial stops being larger than an axial distance between the end surfaces of the mounting lug (5) facing the axial stops.