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A ball thrust 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.
Some important factors when selecting thrust bearings from us:
Thrust bearings must be kept in matched sets.The bore (d dimensions) of one washer (smaller) in the set will conform to the specifications.The bore (d dimension) of the mating washer will be ~ .007” larger because it is a clearance hole for the shaft.

Bearing Number	Bore Dia	Outer DIa	Width	Size
35 mm x 73 mm x 9 mm ISB 54209 U 209 butées à billes	40BER20XV1V	0,231 Kg	NSK	35 200 r/min
120 mm x 250 mm x 40 mm NSK 52424X butées à billes	140	ISO	400	400x540x140
ISB 53207 U 207 butées à billes	125	6918	90x125x18	18
NTN 562010/GNP5 butées à billes	25 °	60	24,5 mm	130 mm
170 mm x 310 mm x 52 mm SKF NJ 234 ECML butées à billes	13,34 Kg	7032 A-UX	252 kN	160 mm
ISB NK.22.1000.100-1PPN butées à billes	70	80x130x70	80FSF130	80 mm
150 mm x 210 mm x 18 mm KOYO 239430B butées à billes	BK142216	14	16 mm	14 mm
AST 51164M butées à billes	0,083 kg / Weight, s	35	3900 N / Fatigue li	56 mm
FAG 51232-MP butées à billes	150 °C	SNR	42,000 mm	15x42x13
Toyana 234416 MSP butées à billes	2 mm	26	1.73 Kg	7021B
ISB 234960 butées à billes	77,2 mm	69 mm	2,55 Kg	6300 r/min
NACHI 51222 butées à billes	29,007 mm	2,3 mm	114	478R/472AR