Tapered Roller Thrust Bearing
Applications
Automotive Transmissions & Differentials – Ensures smooth power transmission and handles thrust loads.
Construction & Mining Equipment – Used in heavy-duty machinery like excavators and crushers.
Steel & Rolling Mills – Supports high axial loads in rolling mills and gear drives.
Marine Propulsion Systems – Helps manage thrust loads in ship propellers and turbines.
Railway Axle Systems – Ensures stability and durability in locomotive axle arrangements.
Oil & Gas Drilling Rigs – Supports drill heads and other high-load rotating components.
Industrial Gearboxes – Used in planetary and helical gear systems to manage thrust loads.
Benefits
High Load-Carrying Capacity – Can withstand heavy axial loads while handling some radial loads.
Durability & Longevity – Made from high-strength materials for extreme conditions.
High Precision & Efficiency – Ensures smooth operation in high-speed applications.
Compact & Space-Saving Design – Suitable for applications where space is limited.
Reduced Friction & Heat Generation – Enhances efficiency and reduces wear.
Reliable Performance in High-Impact Environments – Handles shock loads effectively.
A tapered roller thrust bearing is a specific type of rolling element bearing designed to handle axial loads in one direction. It consists of small tapered rollers arranged in a cage between two raceways. This design allows the bearing to support high axial loads while also accommodating some radial loads. Tapered roller thrust bearings are commonly used in applications where heavy axial loads need to be supported efficiently.


| Dimentions | New Designation | Old Designation | Mass | FAG Designation |
| d | D D1 T T1 d1 R M rmin | Kgs | |||||||||||
| 100 | 100 | 98 | 37 | 32 | 87 | 250 | M8 | 1.5 | TTSX100 | 4397/100 | |||
| 120 | 120 | 118 | 45 | 38 | 105 | 300 | M10 | 1.5 | TTSX120 | 4397/120 | 1635 | 3.3 | |
| 150 | 150 | 148 | 55 | 47 | 127 | 457 | M12 | 1.6 | TTSX150 | 4397/150 | 2325 | 6.3 | 53662 |
| 150 | 148 | 55 | 47 | 127 | 550 | M12 | 1.6 | TTSX150K | 4397/150K | 2325 | 6.3 | ||
| 150 | 148 | 48 | 127 | 228.6 | M12 | 1.6 | TTSV150 | 4297/150 | 2325 | 5.7 | |||
| 175 | 175 | 173 | 62 | 53 | 152 | 457 | M12 | 1.6 | TTSX175 | 4397/175 | 3223 | 9.6 | 53777 |
| 175 | 173 | 62 | 53 | 152 | 550 | M12 | 1.6 | TTSX175K | 4397/175K | 3223 | 9.7 | 54353 | |
| 175 | 173 | 53 | 152 | 228.6 | M12 | 1.6 | TTSV175 | 4297/175 | 3223 | 8.5 | |||
| 203 | 203 | 201 | 75.6 | 65 | 178 | 508 | M12 | 1.6 | TTSX203 | 4397/203 | 4500 | 16 | 353108A |
| 203 | 201 | 76 | 65.4 | 170.8 | 508 | M12 | 1.6 | TTSX203K | 4397/203K | 4500 | 16.2 | ||
| 203 | 201 | 85 | 65 | 170 | 250 | M12 | 1.6 | TTSX203K1 | 4397/203K1 | 4500 | 17 | ||
| 203 | 201 | 65 | 178 | 254 | M12 | 1.6 | TTSV203 | 4297/205/HC | 4584 | 10.2 | 53671 | ||
| 205 | 205 | 203 | 76 | 65 | 178 | 508 | M12 | 1.6 | TTSX205 | 4397/205/HC | 4585 | 16.2 | |
| 205 | 203 | 65 | 178 | 254 | M20 | 1.6 | TTSV205 | 4297/205/HC | 4585 | 14.3 | |||
| 235 | 235 | 233 | 85 | 73 | 208 | 560 | M20 | 2 | TTSX235 | 4397/235 | 6028 | 23.7 | |
| 235 | 233 | 73 | 208 | 280 | M20 | 2 | TTSV235 | 4297/235 | |||||
| 265 | 265 | 263 | 95 | 81 | 229 | 609 | M20 | 2.1 | TTSX265 | 4397/265/HC | 7753 | 33.9 | 353038A 52297 |
| 265 | 263 | 81 | 229 | 304.8 | M20 | 2.4 | TTSV265 | 4297/265 | 52408 | ||||
| 320 | 320 | 318 | 112 | 95 | 280 | 762 | M20 | 2.4 | TTSX320 | 4397/320 | 11500 | 58.9 | 353065B 52546 |
| 320 | 318 | 122.7 | 95 | 280 | 470 | M20 | 2.4 | TTSX320K | 4397/320K | 11500 | 62.1 | ||
| 320 | 318 | 118.5 | 95 | 280 | 550 | M20 | 2.4 | TTSX320K1 | 4397/320K1 | ||||
| 320 | 318 | 95 | 280 | 381 | M20 | 2.4 | TTSV320 | 4297/320 | 11500 | 51 | |||
| 330 | 330 328 95 | 280 | 381 | M20 | 2.4 | TTSV330K | 4297/330K | 11500 | 51.4 | |||
| 377 | 377 375 129 377 375 129 377 375 112 | 112 112 | 330 330 330 | 914 930 457.2 | M24 M24 M24 | 2.4 2.4 2.4 | TTSX377 TTSX377K TTSV377 | 4397/377 4397/377K 4297/377 | 16044 | 94.7 | 353107A | |
| 380 | 380 378 129 380 378 112 | 112 | 330 330 | 914.4 457.2 | M24 M24 | M30 M30 | 2.4 2.4 | TTSX380 TTSV380 | 4397/380 4297/380 | |||
| 410 | 410 408 142 410 408 122 | 122 | 355 355 | 1060 508 | M24 M24 | M30 M30 | 3 3 | TTSX410 TTSV410 | 4397/410 4297/410 | 353058B | ||
| 440 | 440 438 152 440 438 130 | 130 | 380 380 | 1016 508 | M24 M24 | M36 M36 | 3 3 | TTSX440 TTSV440 | 4397/440 4297/440 | 23330 | 137 | |
| 495 | 495 492 172 495 492 146 | 146 | 432 432 | 1066.8 558.8 | M24 M24 | M36 M36 | 3 3 | TTSX495 TTSV495 | 4397/495 4297/495 | 353024B | ||
| 525 | 525 522 180 525 522 155 | 155 | 460 460 | 1270 635 | M24 M24 | M36 M36 | 3 3 | TTSX525 TTSV525 | 4397/525 4297/525 | 36202 | 266 | 353020A |
| 555 | 555 552 192 555 552 165 | 165 | 482 482 | 1270 635 | M24 M24 | M36 M36 | 3 3 | TTSX555 TTSV555 | 4397/555 4297/555 | 616674 | ||
| 580 | 580 577 165 | 510 | 710 | M24 | M42 | 3 | TTSV580 | 4297/580 | 41560 | 300.6 | ||
| 581 | 581.025 578.663 193.777 | 168.275 | 508 | 1422.4 | M24 | M42 | 3.2 | THR581XY | 38984 | 338 | 353124A | |
| 610 | 610 607 205 610 607 178 | 178 | 533 | 1524 762 | M30 M30 | M42 M42 | 3 3 | TTSX610 TTSV610 | 4397/610 4297/610 | 353093A | ||
| 640 | 640 637 214.5 640 637 185 | 185 | 550 550 | 1520 762 | M30 M30 | M42 M42 | 3 3 | TTSX640 TTSV640 | 4397/640/HC 4297/640 | 48560 49200 | 454 418 | BFSD353134 |
| 710 | 710 705 250 710 705 250 | 210 205 | 610 610 | 1600 1400 | M30 M30 | M42 M42 | 4 4 | TTSX710 TTSX710K | 4397/710 4397/710K | 62703 | 647 | |
| 750 | 750 745 260 | 225 | 650 | 1600 | M30 | M42 | 4 | TTSX750 | 4397/750/HA/A1 | 63900 | 747 | |
| 800 | 800 795 270 | 245 | 700 | 1700 | M30 | M48 | 5 | TTSX800 | 4937/800 | |||
| 900 | 900 896 280 | 236 | 750 | 1800 | M36 | M48 | 6 | TTSX900 | 4937/900/HC | 94000 | 1150 | 97350 |
One key advantage of tapered roller thrust bearings is their ability to handle both thrust and radial loads. This makes them versatile in various applications, such as automotive transmissions, gearboxes, and construction equipment. The tapered design of the rollers also helps distribute the load more evenly, leading to improved performance and longevity of the bearing.
Design and Construction
The design of a tapered roller thrust bearing typically includes a series of tapered rollers, a cage to hold the rollers in place, and two raceways – one on the shaft and one in the housing. The angle of the tapered rollers is carefully calculated to ensure optimal load distribution and efficiency. Additionally, the cage helps maintain proper roller alignment and spacing, preventing friction and wear.
The construction of tapered roller thrust bearings often involves high-quality materials such as chrome steel or stainless steel to ensure durability and reliability. These bearings may come in various sizes and configurations to suit different load requirements and operating conditions. Proper installation and maintenance are crucial to maximize the performance and service life of tapered roller thrust bearings.
