Bearing selection material

The inner part of the bearing is composed of outer ring, cage, dust cover/seal ring and steel ball. The JRZC bearing ring and steel ball are made of refined bearing steel Gcr15,

and the cage is made of brass or high-quality cold-rolled steel. It can be made of reinforced engineering plastics, and the dust cover is made of imported special materials.

Bearing products produced:

including 60 series, 62 series, 63 series, 68 series, 69 series, 1600 series, 67 series

Heat treatment:

professional and advanced heat treatment equipment and international synchronous heat treatment process to ensure bearing hardness and wear resistance

Bearing accuracy refers to dimensional accuracy and rotational accuracy. Such as P0.P6.P5.P4.P2

688zz bearing has the difference between closed type and open type.

The open type has no cover on both sides of the bearing, which is directly indicated by 688;

the closed type has a cover on both sides, and the cover has a dust cover (indicated by 688ZZ) and a rubber seal cover. (Expressed by 688-2RS) Two kinds.

Feature

688ZZ bearing with dust cover ● dust-proof ● High temperature resistance

688-2RS Rubber Sealed Cover Bearing ● Dust proof and waterproof ● Under the same conditions, the noise is lower than that with a dust cover.

Application

Miniature Deep Groove Ball Bearing bearings are mainly used in motors, electronic accessories, trolleys, skateboards, roller skates and other small machinery.