51380
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
51380
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
207.7 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
400 mm
Bore diameter tolerance
-0.04mm to 0
Outside diameter
620 mm
Outside diameter tolerance
-0.05mm to 0
Width
175 mm
Width tolerance
+0.04mmm to -0.5mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
230429 lbf
Axial static load rating
1318504 lbf
Limiting speed
0.61 X 1000 rpm
Lubrication
Required
Materials
Ring material
52100 Chrome Steel
Ball material
52100 Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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51380 Bearing Product Overview & Core Advantages
The 51380 metric thrust ball bearing is engineered for heavy-duty axial load applications requiring exceptional reliability. This open-type bearing is designed exclusively to accommodate unidirectional thrust loads with high precision. Manufactured from 52100 Chrome Steel for both rings and balls, it delivers superior strength and durability. Its large bore diameter of 400 mm and robust construction make it ideal for applications demanding high axial static and dynamic load capacity.
51380 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51380 | Basic model number indicating a metric series, single-direction thrust ball bearing. |
| Open (Seal Type) | No integral seals or shields. Requires external sealing and specific lubrication for optimal performance. |
51380 Bearing Structural Features & Performance Benefits
- High Load Capacity: With an axial dynamic load rating of 230,429 lbf and an axial static load rating of 1,318,504 lbf, this bearing is built to withstand extreme thrust forces in demanding industrial environments.
- Robust Construction: The use of 52100 Chrome Steel for all critical components (rings, balls, and cage) ensures high hardness, wear resistance, and long service life.
- Precision Tolerances: Features tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise fit and reliable performance in high-precision machinery.
- Wide Temperature Range: Operates effectively within a temperature range of -30°C to 110°C, providing versatility for various operational conditions.
- Compliance: Meets ROHS and REACH standards, ensuring environmental compliance for global markets.
51380 Bearing Typical Application Areas
This heavy-duty thrust ball bearing is ideally suited for applications involving high unidirectional axial loads, such as:
- Vertical Pumps and Compressors
- Heavy-Duty Industrial Gearboxes
- Crane Hooks and Lifting Systems
- Large Valves and Actuators
- Presses and Stamping Machinery
