SKF 1210KJ Ball Bearing

NSK 1210KJ is a double-row self-aligning ball bearing from NSK's 1200 series, with a bore of 50 mm, an outer diameter of 90 mm, and a width of 20 mm. It uses two rows of balls to accommodate angular misalignment between shaft and housing, delivering stable radial support under load in machinery where perfect alignment cannot be guaranteed. The two-row design also helps reduce shaft deflection effects and maintain smoother rotation under varying load conditions. The 1210KJ is cataloged in the 1200 series of NSK self-aligning bearings, reflecting its standard configuration for broad industrial use. It has a dynamic load rating of 22,800 N and a static load rating of 8,100 N, making it suitable for medium radial loading schemes. The bearing’s exact dimensions are 50 × 90 × 20 mm, a widely adopted size that fits many replacement requirements. When selecting replacements, confirm that the 50 mm bore matches your shaft, and that housing fits and load demands align with NSK specifications for the 1210KJ to ensure reliable operation.