51344
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Part No.
Part No.
51344
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
44.3 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
220 mm
Bore diameter tolerance
-0.03mm to 0
Outside diameter
360 mm
Outside diameter tolerance
-0.04mm to 0
Width
112 mm
Width tolerance
+0.03mm to -0.4mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
140281 lbf
Axial static load rating
584503 lbf
Limiting speed
0.68 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
Price available upon request.
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51344 Bearing Product Overview & Core Advantages
The 51344 metric thrust ball bearing is engineered for demanding applications requiring exceptional axial load capacity. Designed specifically to accommodate thrust loads in a single direction, this bearing features a robust construction using 52100 Chrome Steel for both rings and balls, ensuring high durability and reliable performance. Its significant axial static load rating of 584,503 lbf makes it an ideal solution for heavy-duty machinery where high thrust forces are present, providing a compact and efficient power transmission component.
51344 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51344 | Basic model number for a metric series thrust ball bearing. |
| Open (Seal Type) | The bearing is supplied without seals or shields, indicating that lubrication is required and it is intended for applications where external sealing is provided. |
51344 Bearing Structural Features & Performance Benefits
- High Load Capacity: The bearing's geometry and use of high-grade 52100 Chrome Steel enable it to support an extremely high axial dynamic load rating of 140,281 lbf and an axial static load rating of 584,503 lbf, making it suitable for intense thrust applications.
- Precision Tolerances: Features tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise fitment and stable operation within the assembly.
- Material Integrity: Constructed entirely from 52100 Chrome Steel for rings, balls, and cage, providing consistent hardness, wear resistance, and long service life.
- Compliance Standards: The bearing is compliant with ROHS and REACH regulations, ensuring it meets modern environmental and safety standards for industrial use.
51344 Bearing Typical Application Areas
This thrust ball bearing is typically employed in heavy machinery and industrial systems where significant unidirectional axial forces must be supported. Common applications include:
- Heavy-Duty Thrust Applications in industrial gearboxes
- Vertical Pumps and Compressors
- Cranes and Hoisting Equipment
- Marine Propulsion Systems
- Large Industrial Fans and Blowers
