Package includes : There are a total of 20 pieces of miniature bearings that you can use for many different projects.
Micro size : Bearings have an inner diameter of 3 mm, an outer diameter of 8 mm and a thickness of 4 mm?
Material : These miniature bearings are made of bearing steel for low noise and long service life, is rust and wear resistance to ensure long-term use.
Sealed : The bearings are protected by double seals to prevent impurities from entering and grease leakage.
Applications : Bearings are used in a wide range of applications such as DIY, 3D printers, industry, agriculture, engineering and everyday leisure activities.