New Ultra Smooth ModTek 3/4 Bearing Pack 4

3/4"-Inch Precision Ball Bearings - Pack of 4 Highly Polished inner race for smooth high speed performance Made of Hardened Steel - Double Inner-Raced Sealed- No need to grease,Ideal for Heavy Duty Loads, Environments with Dust and Debris 1-3/8-Inch outside diameter. Standard for most hubs