NU211K-C3 Cylindrical roller bearing 55x100x21mm C3

The NU211K-C3 is a single-row cylindrical roller bearing with a 55mm tapered bore (1:12 taper), 100mm outside diameter, and 21mm width. The C3 radial clearance provides greater internal clearance than standard, accommodating thermal expansion and shaft deflection in operating conditions.

Cylindrical roller bearings are designed for high radial load capacity and are commonly used in electric motors, gearboxes, machine tool spindles, and pumps where radial loads dominate and axial loads are minimal or absent. The tapered bore allows mounting directly onto tapered shafts or adapter sleeves.