51172 F
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51172 F
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
22 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
360 mm
Bore diameter tolerance
-0.04mm to 0
Outside diameter
440 mm
Outside diameter tolerance
-0.045mm to 0
Width
65 mm
Width tolerance
+0.04mm to -0.5mm
Chamfer dimension
2 mm
Ball & Washer Dimensions
Housing washer inner diameter
364 mm
Shaft washer outer diameter
436 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
87750 lbf
Axial static load rating
468000 lbf
Limiting speed
1.1 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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In Stock
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51172 F Bearing Product Overview & Core Advantages
The 51172 F is a metric thrust ball bearing engineered for applications demanding high axial load capacity and precision. This bearing is designed to accommodate unidirectional thrust loads and is characterized by its robust construction and high reliability. Its open design allows for versatile mounting and is ideal for high-precision machinery where space constraints and axial force management are critical. Manufactured from high-grade materials, it ensures consistent performance under demanding operational conditions.
51172 F Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| 51172 | Basic model number, defining the core dimensions and type as a thrust ball bearing. |
| F | Indicates a specific manufacturing tolerance or internal design feature for enhanced precision. The bearing features a machined brass cage (implied by standard F suffix conventions for this bearing type). |
51172 F Bearing Structural Features & Performance Benefits
- High Axial Rigidity and Load Capacity: The single-direction design and robust construction enable the bearing to support exceptionally high axial dynamic load ratings of 87750 lbf and axial static load ratings of 468000 lbf, making it suitable for heavy-duty thrust applications.
- Precision Ground Components: The bearing's bore diameter tolerance of -0.04mm to 0 and outside diameter tolerance of -0.045mm to 0 ensure a precise fit, contributing to smooth operation and reduced vibration.
- High-Speed Capability: The use of a stainless steel cage provides strength and stability, supporting a limiting speed of 1,100 rpm for efficient high-speed operation.
- Durability and Corrosion Resistance: Components made from 52100 Chrome Steel (rings and balls) offer high wear resistance and durability, while the stainless steel cage adds corrosion resistance, extending service life.
- Wide Operating Temperature Range: The bearing operates effectively within a temperature range of -30°C to 110°C, ensuring reliability in various environmental conditions.
51172 F Bearing Typical Application Areas
- Heavy Machinery: Thrust supports in large industrial gearboxes, crane hooks, and vertical pumps.
- Power Transmission: Used in applications such as screw jacks and vertical shafts where significant unidirectional axial loads are present.
- Industrial Pumps and Compressors: Ideal for handling high axial forces in centrifugal pumps and compressor systems.
- Precision Engineering: Suitable for machine tools and positioning systems requiring accurate axial load management.
