Hardened precision steel balls in quality G10 according to DIN 5401. Data: Ø 4.762 mm, P4 - material 1.3505. weight per piece: approx. 0.444g, AISI 52100. 100 Cr6. hardness between 60 and 66 HRC. Balls made of this material have an excellent surface finish, excellent hardness and high load-bearing capacity. They are also dimensionally stable and extremely wear-resistant. The balls are non-magnetic, but can be attracted by magnets. Balls in quality G10 are very rare!
Steel balls in size 3/16" fit many front wheel hubs with loose ball bearings.