3750 in Bearing Material 52100 Bearing Steel
They are scratch and impact resistant
The Whittet-Higgins KM-21 is a metric bearing locknut manufactured to meet and exceed the ISO 2982-2:2013(E) specification
High strength
5 x 219 mm (for bearings ≥ 60 mm bore diameter)
Sealmaster PVR-2137 Mounted Cast Iron Flange Cartridge Ball Bearing Steel, Black Oxided - Setscrew Lock Drill America 3750 in Bearing Material 52100Sealmaster is a leading brand of mounted bearings known for durability, precision, and ease of installation. Engineered for demanding industrial applications, Sealmaster bearings are available in a wide range of styles including pillow blocks, flange units, and take up housings, with options in ball, spherical, and tapered roller designs. Sealmaster units feature rugged housings, advanced sealing systems, and multiple shaft locking options to deliver