Thrust Ball Bearings are specialized rolling bearings designed to accommodate axial (thrust) loads in one or both directions, consisting of shaft washers, housing washers, and a ball-and-cage assembly that ensures smooth, low-friction rotation under axial force; they are not suitable for radial loads but provide high axial load capacity, precise shaft positioning, and reliable performance in applications such as automotive transmissions, machine tool spindles, pumps, and vertical shafts where axial stability is critical.
Thrust Ball Bearings are rolling-element bearings engineered to support axial (thrust) loads and are structurally classified as follows:
The main specifications of thrust ball bearings include inner diameter (d), outer diameter (D), height (T), rated dynamic load (C), and rated static load (C0). One-way bearings (511xx, 512xx, 513xx, 514xx series) only bear unidirectional axial loads, while two-way bearings can bear loads in both directions.
| Part No. | Inner Diameter (d,mm) | Outer Diameter (D,mm) | High(T,mm) | load (kN) |
| 51100 | 10 | 24 | 9 | 8.71 |
| 51104 | 20 | 35 | 10 | 10.8 |
| 51107 | 35 | 52 | 12 | 19.9 |
| 51112 | 60 | 85 | 17 | 41.6 |
| 51120 | 100 | 135 | 25 | 76.1 |
| Part No. | Inner Diameter (d,mm) | Outer Diameter (D,mm) | Width (H,mm) | Load (kN) |
| 52205 | 25 | 47 | 26 | ~25-30 |
| 52206 | 30 | 52 | 26 | ~30-35 |
| 52208 | 40 | 68 | 32 | ~45-50 |
| 52210 | 50 | 78 | 34 | ~50-60 |
| 52305 | 25 | 60 | 38 | ~45-50 |
| 52310 | 50 | 95 | 52 | ~110-120 |
| 52405 | 25 | 70 | 48 | ~60-70 |
Optimized raceway geometry and precision steel balls provide maximum support for axial forces in one or both directions.
High-precision manufacturing and optimized internal clearance reduce resistance and vibration, enhancing energy efficiency and system stability.
Premium high-carbon chromium steel (GCr15) or stainless steel options resist fatigue, wear, and corrosion for extended service life.
Available in single-direction, double-direction, and angular contact configurations, including sealed and shielded versions for various environments.
Pre-lubricated and sealed versions reduce maintenance needs while ensuring consistent performance in contaminated or high-speed applications.
Tight tolerances and high-quality cages maintain ball spacing, reduce vibration, and support precise axial alignment in demanding machinery.
Automotive Industry: Steering systems, gearboxes, transmission shafts
Industrial Machinery: Vertical shafts, presses, pumps, machine tools
Electric Motors: Vertical or horizontal motors requiring axial load support
Precision Equipment: Measuring instruments, robotics, small machinery
Pumps and Valves: Axial support for high-pressure operation
Customizable designs for load, speed, and environmental requirements
Strict quality control ensures consistent batch-to-batch reliability
OEM and private-label support for industrial clients worldwide
Competitive pricing and fast delivery for global distribution
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Hi, I am Maxwell, I am an engineer in the field of bearing applications. I majored in mechanical and electromechanical engineering during college. After graduation, I worked for the top three "SKF" bearing companies in the world for ten years , during which I went to dozens of customers in different industries to help them solve problems in bearing applications; later I joined VKUKEN Bearing Manufacturing, and I will share bearing technical knowledge on this website from time to time. If you are a customer Please contact me to help you solve your problem; if you are also a technical expert in bearings, I am very willing to exchange technical knowledge about bearings with you.
