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NACHI 51200 Thrust Ball Bearing
NACHI 51200 single-direction thrust ball bearing, flat back-face housing washer. 10mm ID x 26mm OD x 11mm height. Chrome steel.
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- Inside Calipers
- Made by Toledo
- Size 200MM
- Supplied as each
| Brand | NACHI |
|---|---|
| Bearing Type | Thrust Ball Bearing |
| Series | 512 Series (Light) |
| Washer Type | Flat Back Face |
| Inner Diameter (Bore) | 10 mm |
| Outer Diameter | 26 mm |
| Height (T) | 11 mm |
| Material | Chrome Steel (AISI 52100) |
| Seal Type | Open |
| Dynamic Load Rating (Ca) | 12700 N (12.7 kN) |
| Static Load Rating (C₀a) | 17100 N |
| Limiting Speed (Grease) | 5900 rpm |
| Limiting Speed (Oil) | 8800 rpm |
| Fillet Radius (r min) | 0.6 mm |
| Weight | 0.03 kg |
| Features & Benefits | Inside Calipers Made by Toledo Size 200MM Supplied as each |
NACHI 51200 Thrust Ball Bearing
The NACHI 51200 is a single-row light series thrust ball bearing with a flat back-face housing washer for rigid, concentric mounting, featuring a bore diameter of 10 mm, outer diameter of 26 mm, and height of 11 mm. Single-direction thrust ball bearings are designed to sustain axial loads in one direction and locate a shaft axially in one direction – making them ideal for applications requiring precise axial positioning under purely axial or predominantly axial loading.
Design & Construction
Manufactured by NACHI (a division of Fujikoshi Corporation, Japan), the 51200 consists of a shaft washer, a housing washer, and a ball and cage assembly. The flat back-face housing washer provides a rigid, stable interface with the bearing housing, suitable for applications where precise shaft-to-housing alignment is maintained. Washers and balls are precision-ground from high-carbon chromium bearing steel (AISI 52100 / JIS SUJ2), heat-treated to achieve optimum hardness and fatigue life. The pressed steel cage retains the balls at uniform spacing for consistent load distribution and quiet operation.
Performance
Rated for a basic dynamic axial load capacity of 12.7 kN and a static axial load capacity of 17.1 kN, this bearing delivers reliable performance under sustained axial loading. Permissible speeds reach 5,900 rpm with grease lubrication and 8,800 rpm with oil lubrication. A minimum axial load must be maintained during operation to prevent ball skidding and ensure proper rolling contact between the balls and raceways.
Typical Applications
- Machine tool spindles and lead screws
- Automotive steering columns and clutch release mechanisms
- Crane hooks, slewing rings, and lifting equipment
- Gearbox thrust faces and differential assemblies
- Pump shafts and compressor thrust loads
- Vertical shaft arrangements and turntable supports
- Jack screws, presses, and actuators
- Agricultural and industrial transmission shafts
Related Products
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53200U
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51201
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51202
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51203
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51204
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51100
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51101
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51205
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