608 can be used in motors, pulleys, tools, mechanical transmission and automation equipment.
Deep Groove Ball Bearing Supplier
We supply 608 and 688 deep groove ball bearings in bearing steel or stainless steel versions with ZZ, RS and open structures for motors, pulleys, tools and automation equipment.

Product Overview
608 and 688 are common deep groove ball bearing models. The structure is widely used and can support radial load and certain axial load depending on actual conditions.
608 is a common model with 8x22x7mm size. 688 is smaller at 8x16x5mm and is suitable for compact motors, instruments, automation equipment and precision mechanisms.
Specifications
Selection Notes
- Choose bearing steel for common mechanical applications.
- Choose stainless steel when moisture or anti-rust requirements exist.
- Use ZZ or RS when dust protection or sealing is required.
- 608 and S608 can share the same size system, but material should be clearly distinguished.
FAQ
688 is smaller and suitable for compact motors, instruments, automation equipment and precision mechanisms.
Model, quantity, material, sealing type, working environment, speed, load and document requirements are helpful.
