[Flexible, Hard and Durable] - These Thrust Ball Bearing are made of high quality high-carbon steel, flexible, solid and durable, it's very suitable for frequently moving parts.
[Wide Application] - Suitable for all kinds of casters, pulleys, high-speed products, precision mechanical transmission.
[High Hardness & Low Noise] - Polished smooth surface, high efficiency and low noise.
[Dust-Proof] - The iron cover seal design is convenient for lubrication and maintenance, while preventing dust from entering, which is very suitable for outdoor work.