APPLY TO - Good for electric motors, pumps, generators, gearboxes, engines, and other rotating machinery. Our bearing is a go-to solution for industrial, automotive, agricultural, construction, and other applications.Specification:Model: R20-2RSSeal Type: Double SealedInner Race/Outer Race Material: Chrome Steel (GCr15)Cage Material: Stamping SteelInner Diameter (d): 1-1/4" / 31.75mmOuter Diameter (D): 2-1/4" / 57.15mmThickness (B): 1/2" / 12.7mmDynamic Load Rating (Cr): 3.695kNStatic Load Rating (Cor): 1.986kNAccuracy Class: P0 (ABEC1)Noise Level: Z2Number of Pack: 4 PcsADVANTAGE - Constructed from Chromium Steel with heat treatment, ensuring optimal and consistent hardness for excellent wear resistance.Note: Please refer to the image and choose the correct type of bearing before placing your order (sealed or shielded on both sides or a single side). The suffix on the bearing is for distinguishing between sealed and shielded variations and does not impact the functionality of our product.