Triple Ring Bearings

NSK triple ring bearings are designed exclusively for driven end of controlled crown rolls in presses and colanders of paper making machines, supporting constant pressure distribution and consistent paper thickness with high-accuracy, high-capacity and long-life performance.

Design Features

Special design high-capacity multi-ring bearing consisting of 2 roller / cage assemblies separated by a driven middle ring
Manufactured from long-life vacuum melted, carburized steel
Special dimensional tolerances and rotational accuracy
Heavy-duty, precision machined one-piece brass cage
With lubrication groove and holes on inner and outer rings
2SL type: with spherical inner and outer roller / cage assemblies
2PSL: with cylindrical inner and spherical outer roller / cage assemblies
For shaft diameters ranging from 180 to 380 mm

Operating Benefits

Optimized bearing load distribution with Finite Element Method (FEM) analysis
High-capacity design supports wide web widths
Tapped holes on both sides of middle ring simplifies mounting / connection to drive