This sleeve locates a spherical roller bearing with a tapered bore onto a cylindrical shaft, taking up the fit through a locknut and lockwasher rather than a shaft shoulder. Bore diameter is 125.0 mm, net mass 3.351 kg, standard design, mechanical mounting. The tapered outer surface allows the inner ring to be drawn up the sleeve until the required internal clearance reduction is reached, so mounting and dismounting do not require heating the bearing. This design compensates for shaft tolerance and simplifies positioning on plain, unstepped shafts, making it suited for applications where the bearing needs to be fitted at any point along the shaft length rather than against a fixed shoulder.