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| KOYO 51238 Bearing Details： |
| Bearing Name | 51238 |
| New Model | 51238 |
| Old Model | 8238 bearing |
| product Model | 51238 |
| Category | Thrust Ball Bearings |
| Brand | KOYO Bearing |
| Inner Diameter d ( mm ) | 190 |
| Outer Diameter D ( mm ) | 270 |
| Thickness B ( mm ) | 62 |
|
| KOYO 51238 Bearing Bearing Size and Drawing： |
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KOYO 51238 Bearing With size alternative model
| Model | Inner Diameter
d(mm) | Outer Diameter
D(mm) | thickness
B(mm) | Brand | Type |
| NTN 51238 Bearing | 190 | 270 | 62 | NTN | Thrust Ball Bearings |
| NSK 51238 Bearing | 190 | 270 | 62 | NSK | Thrust Ball Bearings |
| STEYR 51238 Bearing | 190 | 270 | 62 | STEYR | Thrust Ball Bearings |
| TBS 81238 Bearing | 190 | 270 | 62 | TBS | Thrust Roller Bearings |
| FAG 51238 Bearing | 190 | 270 | 62 | FAG | Thrust Ball Bearings |
| TBS 51238 M Bearing | 190 | 270 | 62 | TBS | Thrust Ball Bearings |
| TBS 51238M Bearing | 190 | 270 | 62 | TBS | Thrust Ball Bearings |
| NSK 51238 Bearing | 190 | 270 | 62 | NSK | Thrust Ball Bearings |
| TBS 81238 M Bearing | 190 | 270 | 62 | TBS | Thrust Roller Bearings |
| TBS 81238M Bearing | 190 | 270 | 62 | TBS | Thrust Roller Bearings |
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What are the structural components and design advantages of thrust ball bearings?
Thrust ball bearings consist of a shaft ring, housing ring, steel balls, and a cage. They are available in unidirectional and double-direction types. The steel balls and raceways have a point contact design, offering advantages such as compact structure, ability to withstand pure axial loads, good load-bearing performance at lower limiting speeds, smooth operation, and easy installation.
What are the advantages of thrust ball bearings compared to other similar bearings?
Compared to thrust cylindrical roller bearings, thrust ball bearings have higher limiting speeds and lower friction, making them suitable for higher speed applications. Compared to thrust self-aligning roller bearings, they have a simpler structure, lower cost, and lower requirements for installation precision. Compared to angular contact ball bearings, they have a stronger axial load-bearing capacity and can withstand unidirectional axial forces without needing to be installed in pairs, making them more suitable for pure axial load applications.
What are the applicable occasions and typical applications of thrust ball bearings?
These bearings are suitable for low-speed or intermittent operation applications requiring pure axial loads and with ample radial space. Typical applications include automotive steering mechanisms, crane hooks, machine tool spindles, valve actuators, worm gear reducers, centrifuges, and food processing equipment.
