With two structures of bore cylindrical or tapered and retainers made of steel or synthetic resinsk,the bearings are characteristic of their spherically formed outer ring race ways allowing for misalignment within 3 degree deflection between inner ring and outer ring .so as to compensate concentricity and deflection errors. Quality certification ISO9001:2000 system Precision level ABEC1,ABCE3, ABEC5 Vibration & Nosie level Z1 &V1 Z2 & V2 Z3 & V3 Delivery 10- 30 days Payment term A:30%T/T in advance ,70% T/T against copy of B/L B:100% L/C at sight Packaging A:industial packaging & single box B:according to customer’s requirement