Specification:Drawn Cup Material: ST14 SteelNeedle Roller Material: Chromium Steel (GCr15)Bore Diameter (Fw): 8mmOutside Diameter (D): 12mmWidth: 22mmTorque: 3.15N*mRotating Shaft Limiting Speed: 17000rpmRotating Outer Ring Limiting Speed: 12000rpmNumber of Pack: 1 Pcs Description:-Drawn Cup Needle Roller Bearing features a deep drawn, thin-walled outer ring. They are compact bearings with high load carrying capacity and stiffness.-These bearings are especially suitable for high dynamic loads or radial-limited installation. They are mounted with a tight interference fit in the housing.-Shoulders or snap rings are not required to locate the bearing axially, thus enables a simple and economic design of the housing bore.-For various applications such as agricultural and construction equipment, pumps and compressors, and two-cycle engines, among others.-NOTE: Install with press machine or special tools instead of hammers because beating may lead to local deformation.