Yoke-trunnion universal joint without needle bearings
AssigneeWanXiang QianChao Co., Ltd.
InventorsJianqun Zhou, Guohui Sun, Jianzhi Ma, Hongzheng Shao, Jun Wu
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Abstract
A yoke-trunnion universal joint has a plastic anti-wear coating disposed between the sleeve and trunnion for lubrication, anti wear and absorbing vibration. A combining means combines the plastic ant-wear coating with sleeve or trunnion tightly. The plastic anti-wear coating is made by nylon or polytetrafluoroethylene. The universal joint has a simple structure, long working life, low operating noise and cheap manufacture cost. The most advantage is that the universal joint needs not oil or grease for whole working life. It is an oil or grease free and maintenance free universal joint.
Claims17
A yoke-trunnion universal joint, comprising:
- drive shafts, yokes with bosses connected with said drive shafts;
- sleeves fixed in said bosses, said sleeves having cylinder cup shape;
- a cross having four trunnions, said trunnions disposed in said sleeves;
- plastic anti-wear coatings disposed between said sleeves and said trunnions for lubrication, anti wear and absorbing vibration;
- a combining means for combining said plastic anti-wear coatings with said sleeves or said trunnions tightly.
Dependencies are inferred from the claim text.