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Bearing by the inner and outer ring and cage, dust cover/sealing ring and steel ball of the big four. NIN bearing ring and ball using refined bearing steel GCr15 (AISI 52100) manufacturing, cage with brass (H62) or high quality cold rolled steel ((SPCC) BQB402) stamping, when necessary, can be used to enhance engineering plastics manufacturing, dust cover adopts imported special material (SP CCJISG314) or stainless steel belt (1 cr18ni9) made of nitrile oil resistant rubber sealing ring by phosphating steel skeleton and hot pressing.

Bearing accuracy according to the Chinese national standard GB/T307-94 divided into 2, 4, 5, 6, and a level 0, the precision grade compared with China GB307-84 and ISO standard The table below:

Bearing radial clearance according to the regulations of the state standard GB4604 into five groups, as shown in the list below:

Bearing with open type, single or double sided with dust cover (zz) and with seals (RS, 2 RS), when the factory has been filled with right amount of antirust oil or embellish Grease the bearings without cleaning can be used directly unsealed, suitable for light to medium load, its working temperature is 20 degrees - low to medium speed ~ 110 degrees of the device. When the special working conditions, the customer is to be marked with order quantity of fatliquoring and grease. often The performance and usage of grease as shown in the table. When sealing arrangements have special requirements, customers should also be prescribed when ordering, the characteristics of sealing way see table.

The vibration of the bearing noise is divided into three, with the Z1, Z2, Z3. Instrument to measure the SO910-1. When have special requirements are available to detect BVT - 1 With V1, V2, V3, said its data in the following table, customer requirements should be stated in the order vibration noise.

Bearing is every 10 suit into the plastic tube or use anti-rust paper after into carton, also can use single packing namely after each 1 set of bearing is put into a small plastic bag is put into a small carton , please specify when ordering packaging form.