Fluid operated linear drive unit used as e.g. shock absorber for crash attenuation of moving object, has bearing unit that includes sliding sleeve which is fixed with elastic supporting ring of one main component

摘要

#CMT# #/CMT# The linear drive unit (1) has main components (3,4) that are linearly displaced together by bearing units (7,7a,7b). Each bearing unit has sliding sleeve (26) consisting of metal, glass or ceramic material, which is fixed with elastic supporting ring (35) of one main component. The fissures (45a,45b) are provided between sliding sleeve and main component on both sides of supporting ring in axial direction. The radius of convex supporting surface (37) of supporting ring is smaller than radial distance between supporting surface and center of supporting ring. #CMT#USE : #/CMT# Fluid operated linear drive unit used as shock absorber for crash attenuation of moving object. Can also be used in hydraulic working cylinder. #CMT#ADVANTAGE : #/CMT# The simple installation of linear drive unit is ensured. The static seal of sliding sleeve and supporting ring is performed reliably so that high quality linear drive unit is ensured. The linear drive unit is manufactured at low cost. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a longitudinal sectional view of the linear drive unit. 1 : Linear drive unit 3,4 : Main components 7,7a,7b : Bearing units 26 : Sliding sleeve 35 : Supporting ring 37 : Supporting surface 45a,45b : Fissures.