【 HRB bearing. Special bearings bearing car - jiaxing - - - - Automotive drive axle bearing and running-in test

Jiaxing bearing manufacturing co. , LTD as a car manufacturer, the company currently has the highest standards of international automobile industry TS16949 quality system certification, and issue the certificate. Jiaxing bearing group co. , LTD. , as a retail sales window, has for several professional sales engineers in the industry. Now in automotive drive axle bearing and running-in test is introduced in terms of the drive axle and test. （ 1) Running-in and the purpose of the drive axle is the purpose of the running-in specifications in order to expand the actual contact area of kinematic pair, to be prepared for the drive axle used under load. Through the running-in can improve the quality of friction surface parts, wear resistance, fatigue strength, etc. , at the same time to check the drive axle repair assembly quality, timely detection and removal of deviation in the parts and assembly technology conditions caused by the defects and faults. Drive axle repair assembly quality, in the running-in, usually in work have the same ring gear, the bearing parts fever and the combination of seal do you have any oil leakage, and so on and so forth. Running-in when filling the oil, and in the ( Trucks) Spindle under 1400 ~ 1500 r/min speed positive &negative, stage in no-load and load test, test drive axle works should be the same ring, 5 min, the bearing temperature should no higher than 60 ℃, with the hand touch frame and shaft neck, should not have the feeling of overheating, or drive axle should be disintegrated, examine the technology condition of parts, and repair and adjust accordingly. （ 2) After running-in test qualified, should release drive axle in used lubricating oil, and in parts of the drive axle shells with kerosene or diesel cleaning, finally filling conform to the specifications of the gear oil. Santana drive axle of running-in experiments, because of the drive axle and transmission Shared a shell, so the running-in, actual it is the transmission and the main reducer in together, running-in requirements spindle to 1500 r/min, and the use of low viscosity lubricating oil, positive &negative do have load and no load test, and operation time in each block are not less than 15 min, the total is not less than 1. 5h。 After running-in bearing temperature rise is not higher than 50 ℃, the oil temperature is not higher than 40 ℃, the chiming of the scheme should be no noise and high and low change. After the break-in, putting off gear oil, with the 50% kerosene, diesel oil blend to clean. Check: after running-in gear meshing contact pattern should be in the central tooth, a new tooth surface no less than 1/2 tooth working face. Do not conform to the requirements when the available oil stone, hand grinding wheel grinding or replace gear in pairs. Consulting car special bearings or auto bearing knowledge friends may focus on jiaxing bearing group subscription number: HRB - Or call 1950.