SKF spherical roller bearing, inner diameter 40 mm x outer diameter 90 mm x width 23 mm, 21308 E, 1 piece

Catalog number: 21308 E Features: * The spherical roller bearing is a self-aligning type, and is less susceptible to the effects of shaft misalignment. * Special bainite material that is heat-resistant to 200°C and has excellent wear resistance, material crack resistance, and fatigue resistance is used as standard. * Explorer specification model numbers have the following improved performance. * Compared to bearings with conventional designs, it has improved dynamic load capacity, improved wear resistance, reduced noise and vibration levels, and reduced frictional heat, resulting in a significant extension of the bearing's practical lifespan. Specifications: ● Inner ring diameter (mm): 40 ● Outer ring diameter (mm): 90 ● Width (mm): 23 ● Operating temperature range (℃): -40 to +200 ● Precision grade: ISO 492 dimensional precision, width tolerance less than half of the ISO standard, rotational precision P5 grade ● Two-part window type stamped steel cage ● Flangeless inner ring ● Inner ring guide type guide ring ● Optimized internal design to increase load capacity ● Oil groove and three oil holes on outer ring Material/Finish: ● High carbon chromium bearing steel