Thrust Bearings  

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A thrust bearing is a particular type of rotary bearing. Like other bearings they permit rotation between parts, but they are designed to support a predominantly axial load.

Thrust bearings come in several varieties.
•Thrust ball bearings, composed of bearing balls supported in a ring, can be used in low thrust applications where there is little axial load.
•Cylindrical thrust roller bearings consist of small cylindrical rollers arranged flat with their axes pointing to the axis of the bearing. They give very good carrying capacity and are cheap, but tend to wear due to the differences in radial speed and friction which is higher than with ball bearings.
•Tapered roller thrust bearings consist of small tapered rollers arranged so that their axes all converge at a point on the axis of the bearing. The length of the roller and the diameter of the wide and the narrow ends and the angle of rollers need to be carefully calculated to provide the correct taper so that each end of the roller rolls smoothly on the bearing face without skidding. These are the type most commonly used in automotive applications (to support the wheels of a motor car for example), where they are used in pairs to accommodate axial thrust in either direction, as well as radial loads. They can support greater thrust loads than the ball type due to the larger contact area, but are more expensive to manufacture.

NTN CRTD6406 Thrust Bearings  

Uncoated –30 to&nb
Brass Straight

NTN RT6405 Thrust Bearings  

0.866 in 89.7 mm
Round UCFT200

NTN CRTD3401 Thrust Bearings  

42.90 mm .5000 in
52314 Steel/Bla Uncoated

NTN 2RT11208 Thrust Bearings  

737288 0.7500 in
Standard Duty 4.4688 in

NTN CRT6401 Thrust Bearings  

8000 RPM Lubrication Fitting
3.1875 in Round

NTN 511/750 Thrust Bearings  

Split Pillow Block Spherical Roller
070963 47500 lb

NTN 511/750 Thrust Bearings  

2 in 20000
None 150 fp/min

NTN CRTD7012 Thrust Bearings  

5.7500 in Set Screw
4-1/4 in UL, AFBMA, AGMA, ASM

NTN CRT5804 Thrust Bearings  

1.0000 in 0.8750 in
Woven PTFE Fabric 50000

NTN 51184 Thrust Bearings  

Round Set Screw Collar
Cast Iron 1760 lb

NTN 29264 Thrust Bearings  

Lubrication Fitting UCX07-23
Set Screw Four-Bolt Flange

NTN 81132L1 Thrust Bearings  

Contact Seal 69.9 mm
7869 lb 98.8 mm