Rolling bearing steel is made up of an outer ring, a cage, a steel ball, and an inner ring. It comes in a variety of shapes, including cylindrical rolling bearings, tapered rolling bearings, spherical rolling bearings, thrust rolling bearings, and needle rolling bearings, and can be used in a variety of applications. In the automotive industry, needle roller bearings are used in transmissions, pumps, compressors, and drive shafts, among other things.
While most bearings are made of that through 52100 steel, tapered roller bearings are typically made of case-hardened steel in the US market. Bearing components that have been case-hardened are typically used in bearing applications with high loading conditions.
52100 chrome concrete is the most common material used in the manufacture of load carrying elements in highly precise ball bearings, rollers, and tapered roller bearings. On the Rockwell hardness C scale, the typical surface hardness of bearing components made from this material ranges from 60 to 64. (Rc).
The majority of ball bearings are magnetic, but there are alternatives when magnetic bearings are not an option. Most stainless steel and chrome steel bearings are magnetic. Many people are surprised to learn that the 440-grade steel used in most stainless steel bearings is highly magnetic.
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