Sendzimir Back-Up Roll Bearings

NSK’s back-up roll bearings for Sendzimir and cluster mills are engineered with the requisite ring strength and running accuracy to support precise plate and sheet making. With advanced options including our long-life Super-TF steel and innovative seal design, they withstand heavy loads, contamination and lubrication challenges to deliver a long and reliable service life.

Design Features

Special design high-capacity cylindrical roller bearings with eccentrically thick outer rings, which serve as the back-up roll
Available with Super-TF or Extra-Pure (EP) material options for extraordinarily high endurance
In three row or double row designs
With machined brass cages
Advanced seal design option available for double row bearings
Special tolerances for precision running accuracy
With C2, C-normal and custom matched-set clearance

Operating Benefits

Significantly longer fatigue life under heavy loads and severely compromised lubrication conditions with Super-TF and EP material options
Optimized seal design for oil-mist / oil-air lubrication conditions
Lower seal contact force allows for higher speed operation with reduced seal wear
High rotational accuracy
Higher reliability with reduced bearing consumption