• Spherical roller bearings comprising barrel-shaped convex rollers, double-row inner ring and outer ring are classified into four types : R, RH, RHA and SR, according to their internal structure.

• With the bearing designed such that the circular are center of the outer ring raceway matches with the bearing center, the bearing is self-aligning, insensitive to errors of alignment of the shaft relative to the housing, and to shaft bending.

• This type can accommodate radial load and axial load in both directions,  which makes it especially suitable for applications in which heavy load or impact load is applied.

• The tapered bore type can be easily mounted / dismounted by using an adapter or withdrawal sleeve.
  There are two types of tapered bores (tapered ratio) :
  -1:30 (supplementary code K30) ... Suitable for series 240 and 241.
  -1:12 (supplementary code K)... Suitable for series other than 240 and 241.

• Lubrication hole, a lubrication groove and anti-rotation pin hole can be provided on the outer ring. Lubrication holes and a lubrication groove can be provided on the inner ring, too.

Recommended cages

Copper alloy machined cage, pressed steel cage, pin type cage, synthetic resin molded cage

Main applications

Paper manufacturing equipment, speed reducers, railway rolling stock axle journals, rolling mill pinion stands, table rollers, crushers, shaker screens, printing equipment, wood working equipment, speed reducers for various industrial uses, plummer blocks.