638/8-ZZ deep groove ball bearing is offered by Hahong Intl Trade (Shanghai) Co, Ltd. Hahong is a well-managed company, and sophisticated in bearing industry.

Deep Groove ball bearings having an outside diameter less than 9 mm are known as Miniature ball bearings. Deep Groove ball bearings having an outside diameter ~ 9 mm and a bore diameter < 10 mm are known as Extra-small ball bearings. Standard ball retainers (cages) are made from pressed steel. Machined cages are used in bearing operating at very high speed or for large diameter bearings. Deep groove ball bearings with seals or shields are standardized.

Design Advantages.
1)Designed for better life in contaminated environments.
2)Special coatings provide for additional corrosion resistance.
3)Special seal designs help keep lubrication in and contamination out.
4)Snap ring grooves are available to simplify mounting.
5)Various seal and shield configurations, which help protect internal bearing components and retain lubricants, are available to suit a wide array of applications.

Application:
Miniature Bearings for all types of industrial equipment, small rotary motor; Recently, miniaturization of these devices, lightweight, toy and clock ect.

Well-manufactured products with competitive prices; Quick delivery with good service; We are always trying our best to satisfy our customers! Welcome to inquiry and order anytime!