Single direction thrust ball bearings consist of a shaft washer, a housing washer and a ball and cage thrust assembly. The bearings are separable so that mounting is simple as the washers and the ball and cage assembly can be mounted separately.

Smaller sizes are available with either a flat seating surface on the housing washer or a sphered seating surface. Bearings with a sphered housing washer can be used together with a sphered seating washer  to compensate for misalignment between the support surface in the housing and the shaft. Sphered seating washers are available from SKF but must be ordered separately.

Single direction thrust ball bearings, as their name suggests, can accommodate axial loads in one direction and thus locate a shaft axially in one direction. They must not be subjected to any radial load.

Principal Dimension			Basic load ratings		Limiting speeds		Weight	Designations
d	D	H	Dynamic	Static	Grease	Oil	Kg
160	200	31	93	399	1200		1700	51132
	270	87	427	1026	630	850	19.2	51332
170	215	34	130	430	1100	1600	3.1	51134
	280	87	363	1268	600	850	19.9	51334
180	225	34	155	516	1000	1500	3.13	51136
	300	95	550	1450	560	750	28.4	51336
190	240	37	175	573	950	1400	8.16	51138
	320	105	607	1654	480	630	34.5	51338
200	250	37	168	655	950	1400	4.25	51140
	280	62	338	1220	750	1000	12	51240
	340	110	624	2400	480	630	44.5	51340
220	270	37	178	735	900	1300	4.6	51144
	300	63	351	1320	700	950	13	51244
240	300	45	234	965	800	1100	7.55	51148
	340	78	462	1860	600	800	23	51248
	380	112	692	2870	320	450	51	51348
260	320	45	238	1020	800	1100	8.1	51152
	360	79	475	2000	560	750	25	51252
280	350	53	319	1340	700	950	12	51156
	380	80	494	2160	560	750	26.5	51256
300	380	62	364	1600	630	850	17.5	51160
	420	95	605	2750	480	630	42	51260
320	400	63	371	1700	600	800	19	51164
	440	95	572	2700	450	600	45.5	51264
340	420	64	377	1800	600	800	20.5	51168
	460	96	605	2900	450	600	48.5	51268
	540	160	1120	5720	150	220	145	51368
360	440	65	390	1900	560	750	22	51172
	500	110	741	3800	400	530	70	51272
380	460	65	397	2000	560	750	23	51176
	520	112	728	3800	380	500	73	51276
400	480	65	403	2120	530	700	24	51180
	540	112	802	4310	220	340	76	51280
420	500	65	410	2200	530	700	25.5	51184
440	540	80	527	3000	450	600	42	51188
	600	130	808	4430	180	280	112	51288
460	560	80	527	3000	450	600	43.5	51192
	620	130	892	5230	170	260	119	51292
480	580	80	540	3250	430	560	45.5	51196
500	600	80	553	3350	430	560	47	511/500
	670	135	1020	6200	150	220	140	512/500
	540	30	101	835	1100	1500	6.66	510/500
	750	150	950	6320	180	220	228	593/500
530	640	85	663	4250	400	530	58.5	511/530
560	610	30	128	960	560	800	9.55	590/560
600	710	67	630	4275	380	500	50.1	591/600
630	850	175	1320	9300	100	160	252	512/630
670	800	105	852	6100	300	400	105	511/670
	730	45	284	2160	380	530	20.5	510/670
710	950	109	787	980	150	220	199.4	572/710
	950	145	1025	1296	150	220	284	592/710
750	900	90	810	6210	160	240	100	591/750 V
780	930	100	800	6069	140	200	129	517/780