If the code is unreadable, use a vernier caliper to measure the Inner Diameter (ID) , Outer Diameter (OD) , and Width (W) in millimeters. 3. Choose Reputable Online Suppliers Bearing Selection Guide | How to Choose a Bearing
The bore size (Inner Diameter). For digits above 03, multiply by 5 to get the size in mm (e.g., "05" = 25mm). buy ball bearings online
If replacing an existing part, use the identification code typically stamped on the ring. If the code is unreadable, use a vernier