Bearing materials are carbon steel, bearing steel (GCr15), stainless steel, plastic, ceramics, etc. The cages are nylon cage, iron cage, copper cage, and so on.

608 bearings are mainly loved by roller skating enthusiasts. Mainly used on the wheels of roller skates. Bearings for skateboards are generally 608 or 688, and each wheel needs two bearings; the characteristic specifications are marked with ABEC, which represents the rotation speed of the bearing per minute. For example, ABEC-5 means that the bearing can rotate 5,000 revolutions per minute, which is the most common ABEC-7 can rotate 7,000 revolutions per minute. Of course, the price also has to jump one level. The current highest specification is ABEC-11.
ABEC-1, ABEC-3, ABEC-5, ABEC-7, ABEC-9... etc. to classify the index, the higher the level, the more precise.

It can also be used for single-stage reducer, plastic welding machine, lace machine, sliding guide, flotation equipment, automatic sandblasting machine, creasing machine, rubber cutting machine, dripping machine, weaving machine, irrigation and drainage machinery, reaction kettle, concrete Mixer, ironing equipment washing equipment, automatic pump, blow molding machine, rolling equipment, radial drilling machine, etc.

The packaging of such bearings is plastic tube packaging, which can prevent loss and friction, and a plastic tube can hold 50-100 small bearings.