J69 contact angle of bearing measuring instrument PerformanceContact angle is an important parameter to determine the bearing performance,Website:://.zys-bearing.com,and it determines the axial and radial bearing capacity of the bearing .large amount of theoretical researchs and experiments show that the contact angle value and its consistency will directly affect the rigidity,rotating accuracy and life of the whole shafting on angular contact ball bearing for precision spindle,especially duplex bearings ,Therefore more and more users have controlled this parameters strictly as akey factor which can improve the performance of precision spindle.This instrument is easy to operate,and has high precision and good repeatability,It is applicable to national metrology unit.Technical SpecificationModelJ693J6915J6930Measuring ranged: φ10～φ50mmd: φ26～φ130mmd: φ50～φ100mmD:＜φ30mmD:≤φ150mmD:≤φ300mmIndication repeatability30’30’30’Measuring efficiency30 pieces/h30～60 pieces/h30 pieces/hMeasuring load1～10kg2.5～25kg10～60kg