.5625" Chrome Steel Ball Bearings
BRAND NEW lot of 25 chrome steel ball bearings. MADE IN THE USA. These balls are Grade 25. This means that they must be round or spherical within 25 millionths (.000025) of an inch . They are made of AISI 52100 Chrome Alloy Steel that offers high hardness and excellent resistance to wear and deformation. They have a tensile strength of 325,000 psi. This is the finest bearing quality steel. 52100 material is specified by precision bearing manufacturers where precise spherical and tolerance accuracy are required.
(New (25) 9/16" chrome steel bearing balls, grade 25 lot is the responsibility of Ina Ballard)
email@example.com (Ina Ballard)for more information.