WELLENLAGER.

摘要

It is well-known that grease over-filling of a bearing housing provides a strong rise of the normal running temperature of the bearing. In order to avoid this problem the grease surplus has to be drained out through an escape hole of the housing. On the long run this leads also to a harmful loss of useful base-oil from the lubricant. The claimed design overcomes this problem by applying a thermally controlled grease escape valve (6, 12) in the escape hole of the housing (1). This valve (6, 12) opens when an undisereable rise of temperature occurs and closing itself when the temperature drops to an acceptable level. Preferably the valve (6, 12) is controlled by a temperature-memory-spring (10) which releases itself only when the surrounding temperature exceeds a threshold value.