Premium bearing design matches OEM specifications Precision manufactured using premium-grade steel for outstanding durability and performance Controlled heat treating process for lasting performance and extended bearing life Industry leading coverage Professional technicians know they can depend on National Additional Info: National Ball Bearing National Oil Seals & Bearings offer a full line of premium oil seals and bearings. 1. Package Dimensions: 4.375 x 1.250 x 4.375 inches 2. UPC: 724956044900 3. Bore: 55.000 MM 4. Bore (Inch): 2.165 5. Design: Single Row Radial 6. Inner Race Bore: 55.000 MM 7. Inner Race Bore (Inch): 2.165 8. Inner Race Radius: 1.520 MM 9. Inner Race Radius (Inch): 0.060 10. Inner Race Width: 21.000 MM 11. Inner Race Width (Inch): 0.827 12. Outer Race Outside Diameter: 100.000 MM 13. Outer Race Outside Diameter (Inch): 3.937 14. Outer Race Radius: 1.520 MM 15. Outer Race Radius (Inch): 0.060 16. Outer Race Width: 21.000 MM 17. Outer Race Width (Inch): 0.827 18. Outside Diameter: 100.000 MM 19. Outside Diameter (Inch): 3.937 20. Series: 1200 21. Type: B-1 22. Width: 21.000 MM 23. Width (Inch): 0.827 24. Country of Origin: CN 25. Remanufactured Part: N