Super Precision Cylindrical Roller Bearings


Spherical roller bearings are available in EA, C, CD, and CA types designed for high load capacity. Types EA, C, and CD have pressed steel cages, while CA uses machined brass cages. All EA types are high-performance standard NSKHPS Series bearings.

NSKHPS Series bearings have especially high load capacity, high limiting speeds, and excellent performance at temperatures up to 200°C.

Designations suffixed with “E4” have an oil groove and holes on the outer ring. Since the depth of the oil groove in these bearings is limited, we recommend using an oil groove in the housing bore as well.


  • Self-aligning
    The bearing automatically compensates for deviation in the shaft center and bending in the housing or shaft, preventing excessive force from being applied to it.
  • Support for all types of loads
    Spherical roller bearings sustain radial loads, axial loads in both directions, and combined loads.
  • For fixed-end or free-end


  • High load capacity
    Suited for applications involving large radial loads, heavy loads, and impact loads
  • Mining equipment (powdering machines, vibrating screens, conveyors, etc.), gearboxes, air preheaters, extruders, centrifugal separators, construction machinery, steelmaking machinery, papermaking machines


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