Thrust Ball Bearing

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     thrust ball bearings are manufactured as single direction or double direction thrust ball bearings. They are designed to accommodate axial loads only and must not be subjected to any radial load.

    A  thrust ball bearing is a particular type of rotary ball bearing. Like other ball bearings, they permit rotation between parts, but they are designed to support a high axial load while doing this (parallel to the shaft). Higher speed applications require oil lubrication. Generally, they are composed of two washers (raceways) which may be grooved the rolling balls elements which are typically caged. As opposed to roller thrust bearings, ball thrust bearings can generally operate at higher speeds but at lower loads.


  1. Available in two designs: single direction and double direction.
  2. To accommodate initial misalignments in an assembly both designs are available with spherical aligning seats or aligning seat washers.
  3. High quality steel-ultra clean steel to extend bearing life by up to 80%.
  4. Advanced Grease Technology — NSK lubricants that can extend grease life and performance.
  5. High Grade Balls — Quiet and smooth operation even at high speed.
  6. Optional seating rings take initial misalignment.
Bearing Number Bore Dia Outer DIa Width Size
INA DL15-SS Thrust Ball Bearing B04311 0.0 N/A Bearings
NSK 51424M Thrust Ball Bearing 2-24C 2.5625 in Set Screw Lubrication Fitting
NSK 51422M Thrust Ball Bearing Collar Mount Spherical Roller 4.5000 in 11.6250 to 13.1250 i
NSK 51420M Thrust Ball Bearing Yes Roller Assembly Plus FAG BEARING Double Direction
NSK 51272M Thrust Ball Bearing 0808250425044 N/A M06110 0.554
NSK 51338M Thrust Ball Bearing 2.535 1.15 8482.50.00.00 Single Row
NSK 51256M Thrust Ball Bearing TIMKEN Bearings M06288 13.608
NSK 51248M Thrust Ball Bearing 57.4 N/A B04144 FAG BEARING
NSK 51240M Thrust Ball Bearing A2 Tool Steel ±1/4 in ±0.001 in AISI/SAE A2
NSK 51238M Thrust Ball Bearing Bearings BEARINGS LIMITED 6.3 B00308
NSK 51156M Thrust Ball Bearing N/A FAG BEARING SCHAEFFLER GROUP B04144
NSK 51164M Thrust Ball Bearing Note: All units have 0883450508001 0883450508001 0.7