Welcome to our store! 1. This track roller bearing is mainly used in industrial automation equipment and photographic equipment tracks. 2. The bearing is stable, quiet, and long-lasting. 3. Suitable for motors, toys, models, instrumentation, power tools, communication equipment, training equipment, and other fields. 4. Product hardness, high precision, can withstand high speed and high load. 5. Made of high-quality stainless steel bearing material, resistant to rust and corrosion. Features: 1. This track roller bearing is mainly used in industrial automation equipment and photographic equipment tracks. 2. The bearing is stable, quiet, and long-lasting. 3. Suitable for motors, toys, models, instrumentation, power tools, communication equipment, training equipment, and other fields. 4. Product hardness, high precision, can withstand high speed and high load. 5. Made of high-quality stainless steel bearing material, resistant to rust and corrosion. Specification: Condition: 100% Brand New Item Type: Ball Bearing Model: T22 Diameter: Approx. 22.5 mm / 0.9 in Inner Bore Diameter: Approx. 8 mm / 0.3 in Width: Approx. 14.5 mm / 0.6 inchMaterial: AISI440 (9Cr18) Stainless Steel BearingPackage List: 1 * BearingNote: 1. Please allow a slight error due to manual measurement. Thank you for your understanding.2. Monitors are not calibrated the same, so the color of the item in the photos may be slightly different from the real thing. Please take the real item as standard.