Description
R-825 is an Open Miniature Ball Bearing, R-825 Bearing has an inner diameter of 2.5mm, R-825 small Bearing outer diameter is 8mm and R-825 Bearing width is 2.8mm, R-825 Bearing is made of Chrome Steel, 52100 is a high carbon, chromium containing low alloy steel, heat treatment and hardening of 52100 alloy steels will get you 60 Rockwell hardness and very common in bearings.