The eccentric bearing ring integrated thrust needle roller bearing realizes the long life of the bearing ring by adopting the following three measures while achieving the integral structure of the bearing ring. (1) Designed in the bearing ring to prevent surface damage caused by the reduction of lubricating oil. Guide groove. In addition, its integral structure is realized by using a bearing ring arm claw structure and an ingot structure. By minimizing the number of parts, not only does the cost increase, but it also facilitates the assembly work for the customer. (2) In order to make the gap between the bearing retainer and the bearing ring in the radial direction larger than the eccentric amount, the internal structure is improved; (3) using the fem analysis to optimize the shape and thickness , increasing the strength of the retainer;
With the integrated structure of the bearing ring, the life of the eccentricity within 0.5mm is extended to more than four times that of the old product by improving the internal structure. For the use of torque converters and other eccentric conditions, Japanese bearing manufacturers have developed and introduced "eccentric bearing ring integrated thrust needle roller bearings".
Therefore, there are two requirements in the market: (1) allowing large eccentricity and long life; and (2) integrating the bearing ring and the retainer for the purpose of embedding. However, the bearings of the old structure can not meet these two functions. Either even if large eccentricity is allowed, the structure is still separate; either a one-piece structure is used, but a large eccentricity is not allowed. Thrust bearings used in the installation of the engine and torque converter are usually installed with the engine and torque converter in an eccentric condition. If eccentricity is not allowed, the bearing ring guard and the retainer will become hot and cause wear.
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