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Needle roller bearings details

Needle roller bearings come in a variety of designs, from the “K” series, which is a simple needle roller and cage assembly through to drawn cup bearings, track rollers, one way roller clutches, needle thrust bearings, and more complicated bearings containing needle roller/angular contact ball bearings used in ball screw drives.

All make use of needles rollers ability to support a high load due to the fact needle rollers have a greater surface area in contact with the races compared with ball bearings and standard roller bearings.

The small diameter of needle rollers in also important, their space saving design and ability to operate at high speeds is important in many applications.

Needle bearing can be used directly onto the shaft, or can be used with a matching hardened inner ring.

Standard types of needle bearing:

  • Needle Roller and cage assembly (“K” type). Available from 3mm bore, up to specially made cages 250mm bore.
  • Drawn cup type, available with open and closed ends, available in metric and imperial sizes. Also caged and full complement type.
  • Needle roller bearings, with and without inner rings, with and with seals. Available in caged and full complement types.
  • Aligning Needle Roller bearings, with and without inner rings.
  • Needle roller and Ball bearing Combined radial/axial bearings, available with inners to be purchased separately.
  • Yoke and Stud type track rollers, in caged and full complement style, also available sealed and unsealed.
  • Needle thrust bearings and washers,  available in metric and imperial sizes
  • Axial angular contact ball bearing with needle rollers, used with ball screws and rotary tables.
  • Linear Flat cages available in short connecting pieces, or long lengths.

APPLICATIONS INCLUDE:

Pumps, transmissions, pilot bearings, rocker arm pivots, gearboxes, pulley supports, planetary gears, connecting rods, automatic transmissions, mast rollers, cam followers.