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Thrust Ball Bearings

Thrust Ball Bearings are designed to support axial loads only and are available in single-direction and double-direction designs. They consist of a shaft washer, housing washer, balls, and cage, providing smooth rotation, low friction, and reliable axial load support. The washers are typically made of bearing steel and feature raceway grooves that guide the balls and ensure proper load transmission. An appropriate internal design between the shaft washer and housing washer allows smooth ball rotation under axial load. These bearings are available with flat seat, spherical seat, and aligning seat washer designs, including the 51100, 51200, 51300, 51400, 53200, 53300, and 53400 series. Thrust ball bearings are commonly used in applications such as automotive systems, machine tools, gearboxes, pumps, electric motors, etc where axial load support is required. With ISO 9001 certification and over 15 years of manufacturing experience, BKZ Industry supplies thrust ball bearings to customers worldwide.

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Thrust Ball Bearings Are Designed To Support Axial Loads Only

Benefits & Advantages of BKZ Industry Thrust Ball Bearings

Thrust Ball Bearings manufactured by BKZ Industry offer high axial load capacity, easy installation and disassembly, small axial space requirement, self-aligning capability, and a cost-effective bearing solution. As a thrust ball bearing factory from China with 15 years of experience in bearing manufacturing, BKZ Industry can offer all the thrust ball bearings you need.

Benefts of Thrust Ball Bearings​

High Axial Load Capacity

The contact angle of thrust ball bearings is close to 90°, and the raceway grooves in both the shaft washer and housing washer are designed to support axial loads. The axial load is distributed across multiple balls simultaneously, allowing thrust ball bearings to support relatively high axial loads with reliable performance.

Easy Installation and Disassembly

Thrust ball bearings have a separable design in which the shaft washer, housing washer, and ball and cage assembly are separate components. They can be installed independently and usually do not require tight interference fits, making installation and removal along the shaft direction easy.

Small Axial Space Required

With a flat washer-type design, thrust ball bearings require relatively small axial installation space. Since the load is transmitted directly along the axis, the bearing structure can be thinner in the axial direction compared with bearings designed for combined loads.

Optional Self-aligning Capability

When a spherical housing washer and aligning seat washer are used together, the spherical seat surface between them allows the bearing to compensate for misalignment between the shaft and housing, improving installation tolerance and operating reliability.

Cost-effective Bearing Solution

Thrust ball bearings have a relatively simple structure consisting of a shaft washer, housing washer, balls, and cage, which results in lower manufacturing costs. In applications where radial loads are minimal or not present, using thrust ball bearings is more economical than using bearings designed for combined radial and axial loads.

Advantages of BKZ Industry Thrust Ball Bearings​

Wide Range of Options

Different from many suppliers, BKZ Industry, as a thrust ball bearing manufacturer, can produce a wide range of thrust ball bearings required by B2B customers, including flat seat designs, spherical seat face designs, and aligning seat washer types.

ISO Standard Manufacturing

BKZ Industry is certified with ISO 9001 and follows ISO manufacturing standards to provide high-quality thrust ball bearings. Advanced manufacturing processes such as heat treatment, precision machining, CNC turning, raceway grinding, and super finishing are used to ensure product quality and performance.

Advanced Manufacturing Technologies

High carbon chromium bearing steel (such as GCr15 / AISI 52100), stainless steel, and high-temperature steel are used for thrust ball bearings depending on application requirements. Advanced surface finishing technologies such as honing, isotropic finishing, surface roughness control, and raceway waviness control are applied to improve bearing performance and service life. Various lubrication methods including grease lubrication, oil lubrication, solid lubrication for special environments, and lubrication groove design are also used in the manufacturing process.

Experienced in Problem Solving

With over 15 years of experience in bearing manufacturing, BKZ Industry is familiar with various working conditions of thrust ball bearings. Exporting to more than 50 countries, we are experienced in handling application issues, packaging, shipping, and installation-related problems for global customers.

On-Time Delivery

With more than 15 production lines and an annual production capacity of over 60,000 bearings, BKZ Industry can supply thrust ball bearings in bulk and ensure on-time delivery for customer orders.

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Thrust Ball Bearings Types

Thrust ball bearings can be categorized into different types based on various classification methods. By seat design, they can be divided into flat seat face type, spherical seat face type, and aligning seat washer type. By series classification, common series include 51100, 51200, 51300, 51400, 53200, 53300, 53400, and aligning seat washer series such as 53200U, 53300U, and 53400U. However, the most common classification method is based on load direction, which divides thrust ball bearings into single direction thrust ball bearings and double direction thrust ball bearings.

Single Direction Thrust Ball Bearings

Single Direction Thrust Ball Bearings

Single direction thrust ball bearings consist of one shaft washer, one housing washer, and a ball and cage assembly. They are designed to support axial loads in one direction only and cannot carry radial loads. These bearings have a simple structure, low friction, and require small axial installation space. They are commonly used in automotive transmissions, pumps, screw jacks, and gearboxes where axial load acts in one direction.

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Double Direction Thrust Ball Bearings

Double Direction Thrust Ball Bearings

Double direction thrust ball bearings consist of one shaft washer, two housing washers, and two ball and cage assemblies. They are designed to support axial loads in both directions and provide axial positioning of the shaft. Compared with single direction types, they can handle bidirectional axial loads and offer higher axial stiffness. They are widely used in machine tool spindles, vertical motors, turntables, and industrial machinery.

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*We also offer Thrust Ball Bearings not listed here.  Contact us for more options.

Thrust Ball Bearings Size Chart

BKZ Industry supplies a wide range of thrust ball bearings for different applications. This dimension table of thrust ball bearings​ includes some common and representative models, but it does not cover all available sizes. If you need help selecting the right dimensions or bearing type for your application, please contact our team for professional support.

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Bearing No. Bore Diameter d (mm) Outside Diameter D (mm) Total Height T (mm) Dynamic Load Rating Ca (kN) Static Load Rating C0a (kN) Limiting Speed Grease (rpm) Limiting Speed Oil (rpm) Weight (kg)
51100 10 24 9 10.1 14 6700 10000 0.019
51101 12 26 9 10.4 15.4 6700 10000 0.021
51102 15 28 9 10.6 16.8 6300 9500 0.023
51103 17 30 9 11.4 19.5 6000 9000 0.025
51104 20 35 10 15.1 26.6 5300 8000 0.037
51105 25 42 11 19.7 37 4800 7100 0.056
51106 30 47 11 20.6 42 4300 6700 0.064
51107 35 52 12 22.1 49.5 4000 6000 0.081
51108 40 60 13 27.1 63 3600 5300 0.12
51109 45 65 14 28.1 69 3400 5000 0.143
51110 50 70 14 29 75.5 3200 4800 0.153
51111 55 78 16 35 93 2800 4300 0.227
51112 60 85 17 41.5 113 2600 4000 0.281
51113 65 90 18 42 117 2400 3800 0.324
51114 70 95 18 43.5 127 2400 3600 0.346
51115 75 100 19 43.5 131 2200 3400 0.389
51116 80 105 19 45 141 2200 3400 0.417
51117 85 110 19 46.5 150 2200 3200 0.44
51118 90 120 22 60 190 1900 3000 0.646
51120 100 135 25 86 268 1700 2600 0.96
51200 10 26 11 12.8 17.1 6000 9000 0.028
51201 12 28 11 13.3 19 5600 8500 0.031
51202 15 32 12 16.7 24.8 5000 7500 0.043
51203 17 35 12 17.3 27.3 4800 7500 0.05
51204 20 40 14 22.5 37.5 4300 6300 0.077
51205 25 47 15 28 50.5 3800 5600 0.111
51206 30 52 16 29.5 58 3400 5300 0.137
51207 35 62 18 39.5 78 3000 4500 0.21
51208 40 68 19 47.5 98.5 2800 4300 0.27
51209 45 73 20 48 105 2600 4000 0.31
51210 50 78 22 49 111 2400 3600 0.378
51211 55 90 25 70 159 2200 3200 0.599
51212 60 95 26 71.5 169 2000 3000 0.673
51213 65 100 27 75.5 189 1900 2800 0.756
51214 70 105 27 74 189 1900 2800 0.793
51215 75 110 27 78 209 1800 2800 0.845
51216 80 115 28 79 218 1800 2600 0.931
51217 85 125 31 96 264 1600 2400 1.22
51218 90 135 35 114 310 1400 2200 1.69
51220 100 150 38 135 375 1300 2000 2.25
51305 25 52 18 36 61.5 3200 5000 0.169
51306 30 60 21 43 78.5 2800 4300 0.267
51307 35 68 24 56 105 2400 3800 0.386
51308 40 78 26 70 135 2200 3400 0.536
51309 45 85 28 80.5 163 2000 3000 0.672
51310 50 95 31 97.5 202 1800 2800 0.931
51311 55 105 35 115 244 1600 2400 1.31
51312 60 110 35 119 263 1600 2400 1.4
51313 65 115 36 123 282 1500 2400 1.54
51314 70 125 40 137 315 1400 2000 2
51315 75 135 44 159 365 1300 1900 2.6
51316 80 140 44 164 395 1300 1900 2.74
51317 85 150 49 207 490 1100 1700 3.57
51318 90 155 50 214 525 1100 1700 3.83
51320 100 170 55 239 595 1000 1500 4.98
51405 25 60 24 56 89.5 2600 4000 0.334
51406 30 70 28 73 126 2200 3400 0.519
51407 35 80 32 87.5 155 2000 3000 0.769
51408 40 90 36 103 188 1700 2600 1.1
51409 45 100 39 128 246 1600 2400 1.46
51410 50 110 43 147 288 1400 2200 1.94
51411 55 120 48 181 350 1300 1900 2.58
51412 60 130 51 202 395 1200 1800 3.16
51413 65 140 56 234 495 1100 1700 4.1
51414 70 150 60 252 555 1000 1500 5.05
51415 75 160 65 254 560 950 1400 6.15
51416 80 170 68 272 620 900 1300 7.21
52202 15 32 22 16.7 24.8 4800 7100 0.081
52204 20 40 26 22.5 37.5 4000 6000 0.148
52205 25 47 28 28 50.5 3400 5300 0.213
52206 30 52 29 29.5 58 3200 5000 0.254
52207 35 62 34 39.5 78 2800 4300 0.406
52208 40 68 36 47.5 98.5 2600 3800 0.543
52209 45 73 37 48 105 2400 3600 0.606
52210 50 78 39 49 111 2400 3400 0.697
52211 55 90 45 70 159 2000 3000 1.11
52212 60 95 46 71.5 169 1900 3000 1.22
52213 65 100 47 75.5 189 1900 2800 1.34
52214 70 105 47 74 189 1800 2800 1.44
52305 25 52 34 36 61.5 3000 4500 0.324
52306 30 60 38 43 78.5 2600 4000 0.483
52307 35 68 44 56 105 2400 3600 0.71
52308 40 78 49 70 135 2000 3000 1.04
52309 45 85 52 80.5 163 1900 2800 1.28
52310 50 95 58 97.5 202 1700 2600 1.78
52311 55 105 64 115 244 1500 2400 2.43
52312 60 110 64 119 263 1500 2200 2.59
52313 65 115 65 123 282 1500 2200 2.8
52314 70 125 72 137 315 1300 2000 3.67
52405 25 60 45 56 89.5 2400 3600 0.641
52406 30 70 52 73 126 2200 3200 0.978
52407 35 80 59 87.5 155 1800 2800 1.43
52408 40 90 65 103 188 1700 2400 1.98
52409 45 100 72 128 246 1500 2200 2.71
52410 50 110 78 147 288 1400 2000 3.51
52411 55 120 87 181 350 1200 1800 4.66
52412 60 130 93 202 395 1100 1700 5.74
52413 65 140 101 234 495 1000 1600 7.41
52414 70 150 107 252 555 1000 1500 8.99
53200 10 26 11.6 12.8 17.1 6000 9000 0.029
53201 12 28 11.4 13.3 19 5600 8500 0.031
53202 15 32 13.3 16.7 24.8 5000 7500 0.048
53203 17 35 13.2 17.3 27.3 4800 7500 0.055
53204 20 40 14.7 22.5 37.5 4300 6300 0.08
53205 25 47 16.7 28 50.5 3800 5600 0.123
53206 30 52 17.8 29.5 58 3400 5300 0.154
53207 35 62 19.9 39.5 78 3000 4500 0.231
53208 40 68 20.3 47.5 98.5 2800 4300 0.289
53209 45 73 21.3 48 105 2600 4000 0.333
53210 50 78 23.5 49 111 2400 3600 0.404
53211 55 90 27.3 70 159 2200 3200 0.656
53212 60 95 28 71.5 169 2000 3000 0.731
53213 65 100 28.7 75.5 189 1900 2800 0.812
53214 70 105 28.8 74 189 1900 2800 0.866
53215 75 110 28.3 78 209 1800 2800 1.27
53216 80 115 29.5 79 218 1800 2600 1.01
53217 85 125 33.1 96 264 1600 2400 1.35
53218 90 135 38.5 114 310 1400 2200 1.89
53220 100 150 40.9 135 375 1300 2000 2.49
53305 25 52 19.8 36 61.5 3200 5000 0.182
53306 30 60 22.6 43 78.5 2800 4300 0.28
53307 35 68 25.6 56 105 2400 3800 0.403
53308 40 78 28.5 70 135 2200 3400 0.581
53309 45 85 30.1 80.5 163 2000 3000 0.702
53310 50 95 34.3 97.5 202 1800 2800 1.01
53311 55 105 39.3 115 244 1600 2400 1.45
53312 60 110 38.3 119 263 1600 2400 1.51
53313 65 115 39.4 123 282 1500 2400 1.67
53314 70 125 44.2 137 315 1400 2000 2.2
53315 75 135 48.1 159 365 1300 1900 2.8
53316 80 140 47.6 164 395 1300 1900 2.94
53317 85 150 53.1 207 490 1100 1700 3.78
53318 90 155 54.6 214 525 1100 1700 4.11
53320 100 170 59.2 239 595 1000 1500 5.31
53405 25 60 26.4 56 89.5 2600 4000 0.353
53406 30 70 30.1 73 126 2200 3400 0.535
53407 35 80 34 87.5 155 2000 3000 0.785
53408 40 90 38.2 103 188 1700 2600 1.12
53409 45 100 42.4 128 246 1600 2400 1.53
53410 50 110 45.6 147 288 1400 2200 1.98
53411 55 120 50.5 181 350 1300 1900 2.59
53412 60 130 54 202 395 1200 1800 3.2
53413 65 140 60.2 234 495 1100 1700 4.22
53414 70 150 63.6 252 555 1000 1500 5.12
53415 75 160 69 254 560 950 1400 6.23
53416 80 170 72.2 272 620 900 1300 7.33
54202 15 32 24.6 16.7 24.8 4800 7100 0.09
54204 20 40 27.4 22.5 37.5 4000 6000 0.151
54205 25 47 31.4 28 50.5 3400 5300 0.236
54206 30 52 32.6 29.5 58 3200 5000 0.288
54207 35 62 37.8 39.5 78 2800 4300 0.447
54208 40 68 38.6 47.5 98.5 2600 3800 0.581
54209 45 73 39.6 48 105 2400 3600 0.652
54210 50 78 42 49 111 2400 3400 0.75
54211 55 90 49.6 70 159 2000 3000 1.22
54212 60 95 50 71.5 169 1900 3000 1.33
54213 65 100 50.4 75.5 189 1900 2800 1.45
54214 70 105 50.6 74 189 1800 2800 1.59
54305 25 52 37.6 36 61.5 3000 4500 0.35
54306 30 60 41.2 43 78.5 2600 4000 0.511
54307 35 68 47.2 56 105 2400 3600 0.744
54308 40 78 54 70 135 2000 3000 1.13
54309 45 85 56.2 80.5 163 1900 2800 1.34
54310 50 95 64.6 97.5 202 1700 2600 1.94
54311 55 105 72.6 115 244 1500 2400 2.7
54312 60 110 70.6 119 263 1500 2200 2.82
54313 65 115 71.8 123 282 1500 2200 3.06
54314 70 125 80.4 137 315 1300 2000 4.07
54405 25 60 49.8 56 89.5 2400 3600 0.68
54406 30 70 56.2 73 126 2200 3200 1.01
54407 35 80 63 87.5 155 1800 2800 1.47
54408 40 90 69.4 103 188 1700 2400 2.02
54409 45 100 78.8 128 246 1500 2200 2.85
54410 50 110 83.2 147 288 1400 2000 3.59
54411 55 120 92 181 350 1200 1800 4.68
54412 60 130 99 202 395 1100 1700 5.82
54413 65 140 109.4 234 495 1000 1600 7.66
54414 70 150 114.2 252 555 1000 1500 9.12

Thrust Ball Bearing Applications

Thrust ball bearings are designed to carry axial loads only and are commonly used in applications where rotational speeds are low to medium and axial installation space is limited, such as lead screws, screw jacks, vertical pumps, and similar machinery.

FAQs About Thrust Ball Bearings

Q1. Axial Thrust Ball Bearings vs Thrust Ball Bearings: Are They the Same?

Yes, axial thrust ball bearings and thrust ball bearings generally refer to the same type of bearing. The term “axial thrust ball bearing” simply emphasizes that the bearing is designed to carry axial loads only. These bearings consist of a shaft washer, housing washer, balls, and cage, and are used in applications where axial loads are present and radial loads are minimal.

Angular contact thrust ball bearings are different from standard thrust ball bearings. While thrust ball bearings carry axial loads only, angular contact thrust ball bearings can carry mainly axial loads and also support small radial loads. They have a contact angle and different raceway geometry, which allows them to support combined loads and operate at higher speeds.

Double direction thrust spherical ball bearings are designed to carry axial loads in both directions and compensate for shaft misalignment. They typically consist of a shaft washer, two housing washers, and ball and cage assemblies with a spherical seat arrangement. The spherical seat allows self-alignment, making these bearings suitable for applications where misalignment may occur.

Deep groove ball thrust bearings refer to thrust ball bearings with raceway grooves designed to guide the balls more precisely and improve load distribution. They are designed to support axial loads and provide smooth rotation and stable performance. The groove design helps improve running stability and bearing life in axial load applications.

Miniature thrust ball bearings are thrust ball bearings with very small dimensions, typically used in compact equipment and precision devices. Their bore sizes usually range from a few millimeters to around 10 mm. They are commonly used in small motors, instruments, medical devices, robotics, and precision mechanical equipment where axial loads are present.

Plastic thrust ball bearings are thrust bearings made partially or entirely from engineering plastics such as POM, PA, or PTFE. The washers and cage are usually made of plastic, while the balls may be stainless steel or glass balls. These bearings are lightweight, corrosion-resistant, non-magnetic, and suitable for chemical, food processing, and water treatment applications.

The main difference between radial ball bearings and thrust ball bearings is the load direction they support. Radial ball bearings are designed to carry radial loads and sometimes small axial loads, while thrust ball bearings are designed to carry axial loads only and should not be subjected to radial loads. Their internal structures and raceway orientations are also different.

Stainless steel thrust ball bearings are thrust ball bearings manufactured from stainless steel materials such as AISI 440C or 304 stainless steel. They offer good corrosion resistance, moisture resistance, and chemical resistance. These bearings are commonly used in food processing equipment, medical devices, marine equipment, and environments where corrosion protection is required.

Sealed thrust ball bearings are thrust bearings designed with seals or shields to protect the internal components from dust, moisture, and contaminants while retaining lubricant inside the bearing. Although most thrust ball bearings are open type, sealed versions are used in applications where contamination protection and reduced maintenance are required.

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Discover More Bearing Solutions from BKZ Industry

In addition to thrust ball bearings, BKZ Industry manufactures a wide range of bearings for various industrial applications, including thrust roller bearings, stainless steel bearings, ceramic bearings, and high temperature bearings. Our bearings are designed for reliability, performance, and long service life in demanding operating conditions.

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