Freewheel for use as e.g. return barrier, has roller bearings arranged between freewheel rings, and clamping elements arranged between roller bearings in axial direction, where one bearing is sealed opposite to oil and/or grease lubricants

摘要

The freewheel (1) has roller bearings (4a, 4b) arranged between a freewheel inner ring (2) and a freewheel outer ring (3), and clamping elements arranged between the roller bearings in an axial direction. The clamping elements are partially lubricated by oil and/or grease lubricants. One of the roller bearings is sealed opposite to the oil and/or grease lubricants. A seal e.g. annular seal such as O-ring seal (9), is arranged between an oil-dense covering e.g. annular lid, and the freewheel outer ring and/or a roller bearing outer ring of the roller bearing. The roller bearing is designed as rubber seal and double rubber seal roller bearings. The other roller bearing is designed as an open roller bearing.