Premium Thrust Ball Bearings Manufacturer for Heavy Duty Applications

BMT Bearings is a professional China manufacturer and supplier of thrust ball bearings, specializing in both single-direction and double-direction configurations. With over 20 years of experience in bearing production, we have developed mature manufacturing processes and technical expertise of our bearing series lines. Our thrust ball bearings are exported to over 40 countries and regions worldwide, serving customers in machine tools, automotive systems, industrial machinery, and automation equipment. We operate under ISO 9001:2000 and IATF 16949:2016 quality management systems, with over 100 automatic grinding and assembly lines and an annual production capacity of 100 million pieces.

Our Thrust Ball Bearings are designed specifically for handling heavy axial loads in one or both directions, preventing axial shaft movement and maintaining position accuracy of components such as gears and impellers and mainly can be devided into two cartegories: Single-direction thrust ball bearings and Double-direction thrust ball bearings. They have a separable design consisting of precision steel washers and a ball-and-cage assembly, which simplifies installation and maintenance. The steel washers are manufactured from high-quality bearing steel, achieving the hardness and wear resistance required for reliable long-term operation.

Product Advantages

Low friction coefficient

Rolling friction ensures smooth operation and low power consumption during rotation.

Simple and compact design

With only two or three washers and a ball set, the bearing takes up minimal axial space with compact takeup.

Separable construction

The shaft washer, housing washer, and ball assembly can be mounted and dismounted independently, easy for install.

Cost-effective

The manufacturing process is well established and efficient and manufacturing cost is relatively low.

High axial positioning accuracy

The bearing maintains precise axial location of the shaft, making sure shaft position be held to tight tolerances for proper operation of adjacent components.

Single Direction vs. Double Direction

Thrust ball bearings fall into two basic types based on load direction:

Item	Single Direction Thrust Ball Bearing	Double Direction Thrust Ball Bearing
Number of washers	2 (shaft washer + housing washer)	3 (one central shaft washer + two housing washers)
Number of ball assemblies	1	2
Load direction	Axial load in one direction only	Axial loads in both directions
Axial positioning	Positions the shaft in one direction	Positions the shaft in both directions
Typical applications	Machine tool spindles, automotive steering, vertical pumps, crane hooks	Vacuum pumps, compressors, clutch brake systems, presses

Structural Design

Our Thrust Ball Bearings has a separable design with the following components, shaft washer, housing washer, and ball-and-cage assembly:

Shaft washer

The shaft washer is mounted on the shaft and rotates with it. Its ground face serves as the raceway and transmits axial loads from the shaft to the rolling elements.

Housing washer

The housing washer is fixed in the housing bore and remains stationary. It provides the opposite raceway and transfers the load from the balls to the housing structure.

Ball-and-cage assembly

The ball-and-cage assembly consists of balls evenly spaced by a cage, which prevents ball-to-ball contact and guides the balls smoothly through the load zone during rotation.

Separable design

The separable design allows the shaft washer, housing washer, and ball assembly to be dismounted independently, simplifying inspection and replacement of individual components.

Common Applications

Thrust Ball Bearings are used across a wide range of equipment where axial load control is required:

Single-direction thrust ball bearings

Machine tool spindles and lead screws
Automotive steering mechanisms
Crane hooks
Vertical water pumps and centrifuges
Jacks and speed reducers
Printer peripherals and precision positioning tables

Double-direction thrust ball bearings

Vacuum pumps and compressors
Agricultural disc wheel hubs
Presses
Clutch brake systems

Maintenance Guidelines

Lubrication

Majority of bearing failures are linked to poor lubrication. Select the correct lubricant based on operating speed, temperature, and environment, and replenish regularly. Grease is suitable for most moderate-speed applications; oil lubrication may be preferred for higher speeds or continuous operation.

Cleanliness

Prevent contaminants such as dust and metal chips from entering the bearing. Proper sealing and clean handling during installation and maintenance are essential.

Inspection

Periodically check vibration, temperature, and noise during operation. Any significant detected should be investigated promptly.

FAQ

What is the main function of a thrust ball bearing?

Its core function is to carry axial (thrust) loads and prevent axial shaft movement during operation. This maintains the position accuracy of components mounted on the shaft, such as gears or impellers, ensuring stable equipment performance.

Can thrust ball bearings handle radial loads?

No. They are designed for axial loads only and cannot support radial loads. If your application has both axial and radial loads, a separate radial bearing must be used to carry the radial component.

What is the difference between axial load and thrust load?

There is no difference. The terms are interchangeable and both refer to a load acting parallel to the shaft axis.

Are they suitable for high-speed operation?

Generally not. They are best suited for low to moderate speeds. At high speeds, centrifugal forces on the balls increase significantly and can shorten bearing life. For high-speed applications, consult our engineering for alternative recommendations.

How do I choose between single-direction and double-direction?

If the axial load always acts in one direction, choose single-direction. If the load can reverse or act from both directions, choose double-direction.

What is the advantage of the separable design?

The separable design allows the shaft washer, housing washer, and ball assembly to be installed and removed independently. This simplifies assembly, inspection, and maintenance.

Company Strengths

Over 20 years of bearing manufacturing experience

Long-term focus on the bearing industry, dedicated to R&D of high-precision, low-noise, and long-life bearings, with practical experience in various application scenarios and selection requirements.

Dual quality certifications

ISO 9001:2000 and IATF 16949:2016, automotive-grade quality control standards, ensuring consistent quality from batch to batch.

100+ automatic production lines, annual capacity of 100 million pieces

Ensures on-time delivery for large-volume orders and flexible scheduling for small-batch trial production.

Exported to over 40 countries

Serves customers worldwide across household appliances, automotive, motors, pumps, and other sectors.

Product Specification

Bearing Number	d (mm)	D (mm)	T (mm)	Dynamic Ca (kN)	Static Coa (kN)
51100	10	24	9	10	14
51200	10	26	11	12.7	17
53200	10	26	11.6	12.7	17
53200 U200	10	26	11.6	12.7	17
51101	12	26	9	10.4	15.3
51201	12	28	11	13.2	19
53201	12	28	11.4	13.2	19
53201 U201	12	28	11.4	13.2	19
51102	15	28	9	10.6	16.6
51202	15	32	12	16.6	25
53202	15	32	13.3	16.6	25
53202 U202	15	32	13.3	16.6	25
51103	17	30	9	11.4	19.6
51203	17	35	12	17.3	27.5
53203	17	35	13.2	17.3	27.5
53203 U203	17	35	13.2	17.3	27.5
51104	20	35	10	15	26.5
51204	20	40	14	22.4	37.5
53204	20	40	14.7	22.4	37.5
53204 U204	20	40	14.7	22.4	37.5
51105	25	42	11	18	35.5
51205	25	47	15	28	50
53205	25	47	16.7	28	50
53205 U205	25	47	16.7	28	50
51305	25	52	18	34.5	55
53305	25	52	19.8	34.5	55
53305 U305	25	52	19.8	34.5	55
51405	25	60	24	45.5	67
51106	30	47	11	19	40
51206	30	52	16	25	46.5
53206	30	52	17.8	25	46.5
53206 U206	30	52	17.8	25	46.5
51306	30	60	21	38	65.5
53306	30	60	22.6	38	65.5
53306 U306	30	60	22.6	38	65.5
51406	30	70	28	69.5	112
51107	35	52	12	20	46.5
51207	35	62	18	35.5	67
53207	35	62	19.9	35.5	67
53207 U207	35	62	19.9	35.5	67
51307	35	68	24	50	88
53307	35	68	25.6	50	88
53307 U307	35	68	25.6	50	88
51407	35	80	32	76.5	127
51108	40	60	13	27	63
51208	40	68	19	46.5	98
53208	40	68	20.3	46.5	98
53208 U208	40	68	20.3	46.5	98
51308	40	78	26	61	112
53308	40	78	28.5	61	112
53308 U308	40	78	28.5	61	112
51408	40	90	36	96.5	170
51109	45	65	14	28	69.5
51209	45	73	20	39	80
53209	45	73	21.3	39	80
53209 U209	45	73	21.3	39	80
51309	45	85	28	75	140
53309	45	85	30.1	75	140
53309 U309	45	85	30.1	75	140
51409	45	100	39	122	220
51110	50	70	14	29	75
51210	50	78	22	50	106
53210	50	78	23.5	50	106
53210 U210	50	78	23.5	50	106
51310	50	95	31	86.5	170
53310	50	95	34.3	86.5	170
53310 U310	50	95	34.3	86.5	170
51410	50	110	43	137	255
51111	55	78	16	30.5	75
51211	55	90	25	61	134
53211	55	90	27.3	61	134
53211 U211	55	90	27.3	61	134
51311	55	105	35	102	208
53311	55	105	39.3	102	208
53311 U311	55	105	39.3	102	208
51411	55	120	48	180	360
51112	60	85	17	39.4	106.4
51212	60	95	26	58.9	133
53212	60	95	28	58.9	133
53212 U212	60	95	28	58.9	133
51312	60	110	35	95	197.6
53312	60	110	38.3	95	197.6
53312 U312	60	110	38.3	95	197.6
51412	60	130	51	190	380
51113	65	90	18	36.1	95
51213	65	100	27	60.8	142.5
53213	65	100	28.7	60.8	142.5
53213 U213	65	100	28.7	60.8	142.5
51313	65	115	36	100.7	209
53313	65	115	39.4	100.7	209
53313 U313	65	115	39.4	100.7	209
51413	65	140	56	205.2	427.5
51114	70	95	18	38	104.5
51214	70	105	27	62.2	152
53214	70	105	28.8	62.2	152
53214 U214	70	105	28.8	62.2	152
51314	70	125	40	127.3	275.5
53314	70	125	44.2	127.3	275.5
53314 U314	70	125	44.2	127.3	275.5
51414	70	150	60	224.2	475
51115	75	100	19	41.8	115.9
51215	75	110	27	63.7	161.5
53215	75	110	28.3	63.7	161.5
53215 U215	75	110	28.3	63.7	161.5
51315	75	135	44	154.9	342
53315	75	135	48.1	154.9	342
53315 U315	75	135	48.1	154.9	342
51415	75	160	65	237.5	532
51116	80	105	19	42.8	122.6
51216	80	115	28	71.3	180.5
53216	80	115	29.5	71.3	180.5
53216 U216	80	115	29.5	71.3	180.5
51316	80	140	44	152	342
53316	80	140	47.6	152	342
53316 U316	80	140	47.6	152	342
51416	80	170	68	256.5	589
51117	85	110	19	43.2	127.3
51217	85	125	31	93.1	237.5
53217	85	125	33.1	93.1	237.5
53217 U217	85	125	33.1	93.1	237.5
51317	85	150	49	176.7	394.3
53317	85	150	53.1	176.7	394.3
53317 U317	85	150	53.1	176.7	394.3
51417	85	180	72	275.5	646
51118	90	120	22	43.2	133
51218	90	135	35	112.1	285
53218	90	135	38.5	112.1	285
53218 U218	90	135	38.5	112.1	285
51318	90	155	50	183.4	432.3
53318	90	155	54.6	183.4	432.3
53318 U318	90	155	54.6	183.4	432.3
51418	90	190	77	289.8	712.5
51120	100	135	25	76.5	243
51220	100	150	38	114.3	292.5
53220	100	150	40.9	109.8	288
53220 U220	100	150	40.9	109.8	288
51320	100	170	55	216	526.5
53320	100	170	59.2	216	526.5
53320 U320	100	170	59.2	216	526.5
51420	100	210	85	328.5	868.5
51122	110	145	25	77.9	261
51222	110	160	38	120.6	328.5
53222	110	160	40.2	120.6	328.5
53222 U222	110	160	40.2	120.6	328.5
51322	110	190	63	252	675
53322	110	190	67.2	252	675
53322 U322	110	190	67.2	252	675
51422	110	230	95	373.5	1026
51124	120	155	25	81	279
51224	120	170	39	120.6	351
53224	120	170	40.8	120.6	351
53224 U224	120	170	40.8	120.6	351
51324	120	210	70	292.5	823.5
53324	120	210	74.1	292.5	823.5
53324 U324	120	210	74.1	292.5	823.5
51424	120	250	102	382.5	1098
51126	130	170	30	100.8	351
51226	130	190	45	164.7	486
53226	130	190	47.9	164.7	486
53226 U226	130	190	47.9	164.7	486
51326	130	225	75	324	954
51128	140	180	31	100.8	360
51228	140	200	46	171	513
53228	140	200	48.6	171	513
53228 U228	140	200	48.6	171	513
51328	140	240	80	364.5	1125
51130	150	190	31	99	360
51230	150	215	50	212.4	661.5
53230	150	215	53.3	212.4	661.5
53230 U230	150	215	53.3	212.4	661.5
51330	150	250	80	373.5	1206
53330	150	250	83.7	373.5	1206
53330 U330	150	250	83.7	373.5	1206
51132	160	200	31	100.8	387
51232	160	225	51	216	688.5
53232	160	225	54.7	216	688.5
53232 U232	160	225	54.7	216	688.5
51332	160	270	87	418.5	1404
51134	170	215	34	118.8	450
51234	170	240	55	256.5	837
53234	170	240	58.7	256.5	837
53234 U234	170	240	58.7	256.5	837
51334	170	280	87	418.5	1404
51136	180	225	34	120.6	477
51236	180	250	56	274.5	936
53236	180	250	58.2	274.5	936
53236 U236	180	250	58.2	274.5	936
51336	180	300	95	468	1647
51138	190	240	37	153	589.5
51238	190	270	62	301.5	1044
53238	190	270	65.7	301.5	1044
53238 U238	190	270	65.7	301.5	1044
51338	190	320	105	540	1980
51140	200	250	37	153	589.5
51240	200	280	62	306	1098
51340	200	340	110	558	2160
51144	220	270	37	158.4	661.5
51244	220	300	63	319.5	1206
51148	240	300	45	208.8	868.5
51248	240	340	78	418.5	1674
51152	260	320	45	212.4	918
51252	260	360	79	441	1836
51156	280	350	53	283.5	1206
51256	280	380	80	441	1944
51160	300	380	62	328.5	1440
51260	300	420	95	526.5	2430
51164	320	400	63	337.5	1530
51264	320	440	95	540	2520
51168	340	420	64	342	1620
51268	340	460	96	558	2745
51172	360	440	65	364.5	1800
51272	360	500	110	648	3285
51176	380	460	65	387	2016
51180	400	480	65	396	2088
51184	420	500	65	396	2205
51192	460	560	80	477	2790
511/500	500	600	80	495	3015
511/530	530	640	85	558	3510
511/560	560	670	85	567	3735
52202	10	32	22	16.6	25
52204	15	40	26	22.4	37.5
52205	20	47	28	28	50
54205	20	47	31.4	28	50
54205 U205	20	47	31.4	28	50
52305	20	52	34	34.5	55
54305	20	52	37.6	34.5	55
54305 U305	20	52	37.6	34.5	55
52206	25	52	29	25	46.5
54206	25	52	32.6	25	46.5
54206 U206	25	52	32.6	25	46.5
52306	25	60	38	38	65.5
54306	25	60	41.2	38	65.5
54306 U306	25	60	41.2	38	65.5
52207	30	62	34	35.5	67
54207	30	62	37.8	35.5	67
54207 U207	30	62	37.8	35.5	67
52307	30	68	44	50	88
54307	30	68	47.2	50	88
54307 U307	30	68	47.2	50	88
52208	30	68	36	46.5	98
54208	30	68	38.6	46.5	98
54208 U208	30	68	38.6	46.5	98
52308	30	78	49	61	112
52209	35	73	37	39	80
54209	35	73	39.6	39	80
54209 U209	35	73	39.6	39	80
52309	35	85	52	75	140
54309	35	85	56.2	75	140
54309 U309	35	85	56.2	75	140
52210	40	78	39	50	106
54210	40	78	42	50	106
54210 U210	40	78	42	50	106
52310	40	95	58	86.5	170
54310	40	95	64.6	86.5	170
54310 U310	40	95	64.6	86.5	170
52211	45	90	45	61	134
54211	45	90	49.6	61	134
54211 U211	45	90	49.6	61	134
52311	45	105	64	102	208
54311	45	105	72.6	102	208
54311 U311	45	105	72.6	102	208
52212	50	95	46	62	140
54212	50	95	50	62	140
54212 U212	50	95	50	62	140
52312	50	110	64	100	208
54312	50	110	70.6	100	208
54312 U312	50	110	70.6	100	208
52213	55	100	47	64	150
52313	55	115	65	106	220
52214	55	105	47	65.5	160
52314	55	125	72	134	290
54314	55	125	80.4	134	290
54314 U314	55	125	80.4	134	290
52215	60	110	47	67	170
54215	60	110	49.6	67	170
54215 U215	60	110	49.6	67	170
52315	60	135	79	163	360
54315	60	135	87.2	163	360
54315 U315	60	135	87.2	163	360
52216	65	115	48	75	190
54216	65	115	51	75	190
54216 U216	65	115	51	75	190
52316	65	140	79	160	360
54316	65	140	86.2	160	360
54316 U316	65	140	86.2	160	360
52217	70	125	55	88.2	225
54217	70	125	59.2	88.2	225
54217 U217	70	125	59.2	88.2	225
52317	70	150	87	167.4	373.5
54317	70	150	95.2	167.4	373.5
54317 U317	70	150	95.2	167.4	373.5
52218	75	135	62	106.2	270
54218	75	135	69	106.2	270
54218 U218	75	135	69	106.2	270
52318	75	155	88	173.7	409.5
54318	75	155	97.2	173.7	409.5
54318 U318	75	155	97.2	173.7	409.5
52220	85	150	67	109.8	288
54220	85	150	72.8	109.8	288
54220 U220	85	150	72.8	109.8	288
52320	85	170	97	216	526.5
54320	85	170	105.4	216	526.5
54320 U320	85	170	105.4	216	526.5
52222	95	160	67	120.6	328.5
52322	95	190	110	252	675
54322	95	190	118.4	252	675
54322 U322	95	190	118.4	252	675
52224	100	170	68	120.6	351
52324	100	210	123	292.5	823.5
52226	110	190	80	164.7	486
52326	110	225	130	324	954
52228	120	200	81	171	513
52328	120	240	140	364.5	1125
52230	130	215	89	212.4	661.5
52330	130	250	140	373.5	1206
52232	140	225	90	216	688.5
52234	150	240	97	256.5	837