51264 M
51200 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51264 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
45 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
320 mm
Bore diameter tolerance
-0.04mm to 0
Outside diameter
440 mm
Outside diameter tolerance
-0.045mm to 0
Width
95 mm
Width tolerance
+0.04mm to -0.5mm
Chamfer dimension
3 mm
Ball & Washer Dimensions
Housing washer inner diameter
325 mm
Shaft washer outer diameter
435 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
128700 lbf
Axial static load rating
675000 lbf
Limiting speed
0.9 X 1000 rpm
Materials
Ring material
52100 Chrome Steel
Ball material
52100 Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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51264 M Bearing Product Overview & Core Advantages
The 51264 M is a metric thrust ball bearing engineered for demanding applications requiring exceptional axial load capacity. This precision bearing is designed to accommodate high thrust loads in a single direction while maintaining stable operation. Its robust construction, featuring chrome steel components and a stainless steel cage, ensures high reliability and long service life in industrial environments. The open seal design facilitates relubrication, making it suitable for applications where maintenance access is available.
51264 M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51264 | Basic model number denoting a thrust ball bearing with specific dimensional series. |
| M | Indicates the use of a machined brass cage (based on industry standard interpretation for this context), offering high strength and excellent guidance at moderate speeds. |
51264 M Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: Engineered with a large contact angle and robust construction to handle significant axial dynamic load ratings of 128,700 lbf and axial static load ratings of 675,000 lbf, making it ideal for heavy-duty thrust applications.
- Durable Material Construction: Rings and balls made from 52100 Chrome Steel provide high hardness and wear resistance. The stainless steel cage ensures corrosion resistance and reliable ball guidance.
- Precision Dimensions: Features tight tolerances on the bore diameter (320 mm), outside diameter (440 mm), and width (95 mm) for precise fitment and stable rotational accuracy.
- Open Design: The open seal type allows for easy relubrication, extending bearing life in applications where periodic maintenance is performed.
51264 M Bearing Typical Application Areas
This bearing is commonly specified in heavy machinery and industrial systems requiring high thrust capacity, including:
- Vertical Pumps and Compressors
- Crane Hooks and Lifting Equipment
- Industrial Gearboxes (for thrust positioning)
- Large Presses and Stamping Machines
- Marine Propulsion Systems
