Feature:1. HARD MATERIAL: Linear bearing adopt Gcr15 bearing steel material, bainite thermal treatment process, with enough hardness, higher accuracy2. STURDY AND DURABLE: Round flange linear ball bearing after high strength manufacturing, durable, has strong bearing capacity, good processing accuracy, enhance service life3. HIGH SPEED AND LOW NOISE: Bearing has high speed, low friction torsion, low noise, and not easy to burn, in line with high requirements for use4. APPLICABLE SCENARIO: Circular bearings can be used in transmissions, instruments, motors, household appliances, internal combustion engines, traffic vehicles, agricultural machinery, construction machinery, construction machinery, etc.5. EASY TO USE: Base shaft support size is 20mm, with smooth surface, easy to operate, give you a better use experienceSpecification:Item Type: Round Flange Linear Ball BearingModel: D20 RoundMaterial: Gcr15 bearing steelBase Shaft Support: Approx. 20mm / 0.79inApplicable: Used in transmissions, instruments, motors, household appliances, internal combustion engines, traffic vehicles, agricultural machinery, construction machinery, construction machinery, etc..Package List:1 x Round Flange Linear Ball Bearing