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High precision cross roller bearings with the introduction of the combined process - BYC Bo Ying bearing
Thin-walled cross roller bearings for high accuracy of the industrial robot arm and precision machine tools, high requirements of the sophisticated equipment of precision bearings, BYC Luoyang Boying bearing attention in development of P5 above the level of high precision cross roller bearings, in the processing of this kind of bearings, in addition to the parts size precision requirements, the bearing assembly is also very important. In this paper, the cross bearing roller bearing assembly points of the set do introduction;
Precision long bicycle combined set of definitions: pre processing good bearing rings and rolling body and isolating block matching and assembly, achieve the design clearance and torque to start the process, the process is divided into three steps:
Cross roller bearing grinding processing facilities: Bearing final grinding prior to the completion of the cross roller bearings for inner and outer rings matching, which is bearing final assembly advance Paihao, reducing assembly test clearance workload, in the bearing during final grinding, grinder records bearing raceway size and according to the roller dimensions calculation of clearance size reach or close to design clearance can be of corresponding ring record number, the subsequent assembly access;
2. Crossed roller bearing assembly clearance, bearing rings finish grinding in assembly workshop, assembly personnel in constant temperature workshop according to the original grinding size selection of roller try to install, bolt pretension with instruments to measure the actual clearance. If the clearance fit into the next process or replacement roller or repair ring;
Assembling accuracy and torque. Cross roller bearings: clearance fit bearing matching number and measurement rotation runout values, assembly height and the starting torque, and visual inspection, the indicators qualified rear axle bearing is provided with a sealing ring grease, to ensure that the bearing rotating flexible is the delivery of finished products.