51488
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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51488 Bearing Product Overview & Core Advantages
The 51488 metric thrust ball bearing is engineered for heavy-duty axial load applications requiring exceptional reliability. This open-type bearing is designed to accommodate unidirectional thrust loads with high precision and stability. Manufactured from premium 52100 Chrome Steel for both rings and balls, it delivers superior strength and durability in demanding industrial environments. Its substantial dimensions and high load capacity make it ideal for applications where space constraints are not primary but axial load handling is critical.
51488 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Significance |
|---|---|
| 51 | Indicates thrust ball bearing series |
| 488 | Specifies bearing size and dimensional series |
| Open | No seals or shields - requires external lubrication system |
51488 Bearing Structural Features & Performance Benefits
High Load Capacity Design: The 51488 bearing features optimized raceway geometry and large ball complement, enabling it to handle axial dynamic loads up to 462,207 lbf and axial static loads up to 2,811,910 lbf. This makes it suitable for the most demanding thrust applications.
Precision Engineering: With tight dimensional tolerances (bore diameter tolerance: -0.045mm to 0, outside diameter tolerance: -0.075mm to 0), this bearing ensures precise alignment and smooth operation in heavy machinery.
Robust Construction: The chrome steel cage material provides excellent strength and guidance for the ball complement, while the consistent use of 52100 Chrome Steel throughout ensures uniform thermal expansion and reliable performance across the operating temperature range of -30° to 110°C.
Custom Lubrication Compatibility: As an open bearing, it allows for customized lubrication strategies tailored to specific application requirements, though regular maintenance is essential due to the absence of integrated seals.
51488 Bearing Typical Application Areas
- Heavy industrial vertical pumps and hydraulic systems
- Large crane hooks and lifting equipment
- Industrial gearboxes with significant axial thrust requirements
- Marine propulsion systems and stern tube arrangements
- Mining equipment including vertical shaft applications
- Large press machines and metal forming equipment
- Wind turbine yaw systems requiring substantial thrust capacity
