thrust ball bearings

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Thrust bearings are designed for side or axial loads, and cannot handle much radial load at all. The rolling element in a thrust bearing can be a ball, needle or roller. Thrust bearings come in both metric and inch sizes. Dimensions to consider when searching are the bore, the outside diameter and the overall width. Operating specifications to consider when searching for thrust bearings are rated speed, static axial load, and dynamic axial load. RPM for a bearing running in oil is going to be higher than one running in grease. The static axial load is the maximum axial load a bearing can withstand while stationary without suffering permanent damage. The dynamic axial load is the maximum axial load a bearing can withstand while revolving without suffering permanent damage. The Boca Bearing Company has a wide assortment of miniature, precision thrust bearings. 


The thrust ball bearings are classified into two kinds: unidirectional thrust bearing and bidirectional thrust bearing. The former can bear the axial force in one direction and the latter can bear he axial forces in two directions. Both unidirectional and bidirectional thrust ball bearings cannot bear any radial force.Ball bearings, or deep-groove bearings, extend the working life of equipment by enabling wheels, pulleys, and other rotating parts to reduce friction and move smoothly. Ball bearings have a series of round balls encased in a housing and support high axial or low-to-moderate radial loads.


SIGMA ELI 20 0544 thrust ball bearings

15.5 mm SF209-
SES209 8.3 Nm

ZEN B5 thrust ball bearings

2.9 kg 38.1 mm
UK309G2H-24 50 mm

NKE 51314 thrust ball bearings

41.28 mm 57 mm
130 mm 2.76 kg

75 mm x 155 mm x 19 mm NKE 54318-MP+U318 thrust ball bearings

Deep Groove Ball Bea 20 ~ 40
Double T-Shaped

NKE 51156-MP thrust ball bearings

Double VV (Non-Contact Rubb
Bearings with Housin Flange Type

20 mm x 52 mm x 8 mm NKE 54305+U305 thrust ball bearings

SNR 9.4 kN
150 °C 24.1 mm

50 mm x 130 mm x 62 mm NKE 52412 thrust ball bearings

1045 Carbon Steel Yes (with retaining
20 Bearings with Housin

NKE 53412- MP thrust ball bearings

72 Round Type
17 Deep Groove Ball Bea

150 mm x 240 mm x 173 mm NKE 52234-MP thrust ball bearings

12 Diamond Flange Shape
Oil-Free Type 113

AST F4-9M thrust ball bearings

0.69 171 kN
3,400 rpm 2,600 rpm

ISB ZB2.25.1103.400-1SPPN thrust ball bearings

32 mm 1.53 kg
59.9 mm SCC207

ISB 51180 M thrust ball bearings

29.6 kN 1.74 kg
18.2 kN 46 mm