Patent ID: 8397906
Filing Date: 2013-03-19
Classification: F16C,F16J

Abstract:
1. An idler comprising: an idler tube ( 1 ), an idler shaft ( 7 ), a bearing seat ( 2 ) and a labyrinth seal structure at each end of the idler tube, in which the labyrinth seal structure comprises a seal ring ( 5 ) and a seal cover ( 3 ), wherein a flange ( a convex ring ( a seal rim ( the thickness (b) of the convex ring is 0.1-3 mm, the height (f) of the convex ring is 2-50 mm, the gap (c)between the outer circumference of the convex ring and the seal rim ( wherein the seal ring in the form of M shape is mounted onto the bearing seat by means of interference fit, and a storage compartment (