1results about How to "Achieve self-lubricating effect" patented technology

The utility model discloses a kind of small passenger car universal transmission joint three-pin shaft, including three-pin frame and the pin shaft being set on the outer wall of three-pin frame, the shaft neck position of three-pin frame corresponding pin shaft is provided with multi-stage boss, the end of pin shaft is provided with blind hole, bearing ring is installed to the outside of pin shaft;The surface of each group pin shaft and the inner wall of bearing ring are respectively provided with central raceway and two side edge raceways along circumference direction.The utility model is set up multi-stage boss, reduces stress concentration, improves connection structure strength, increases fatigue life;Blind hole can be set, and weight can be reduced, so as to reduce abrasion;Bearing ring adopts integrated bearing design, structure is simpler, the number of parts composition is less, improve reliability, and reduce cost;The design of net pattern lubricating oil flow channel is favorable to lubricating oil flow, realizes self-lubricating effect, improves lubricating effect by, further reduce abrasion to improve life;Overall reliability can be improved.