Self-Aligning RUB Cylindrical Roller Bearings

NSK’s RUB series are designed to withstand heavy loads and low speeds on the float end of single and split segment guide rolls of continuous casting machines. They run with reduced sliding friction and wear compared with conventional solutions, accommodating roll extension with smooth axial displacement and shaft deflection with their self-aligning design.

Design Features

Single row cylindrical roller bearing with aligning ring
With pin-type brass cage or full complement design options
High-capacity internal design, with optimal size and quantity of rollers
Optimized roller crowning reduces internal sliding friction and wear while absorbing roll bending
Available with / without lubrication holes in the aligning ring, lubrication groove and holes in the outer ring
Corrosion resistant phosphate coating option
For dimension series 32, 40, 41
Available for bore diameters from 100 to 200 mm
With C-normal, C3 and C4 clearance

Operating Benefits

Extended operating life – preventing wear problems related to differential sliding
Smoothly absorbs axial thermal expansion of the roll, eliminating wear to the chock bore surface
Self-aligning capability accommodates misalignment and shaft deflection, minimizing the effects of edge loading
Full-complement design option for extremely high loads