51440
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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51440 Bearing Product Overview & Core Advantages
The 51440 metric thrust ball bearing is engineered for applications requiring exceptional axial load capacity in a single direction. Manufactured from 52100 Chrome Steel for both rings and balls, this bearing delivers high strength and durability under heavy thrust loads. Its precision-ground components and tight dimensional tolerances ensure reliable performance in demanding industrial environments where high static and dynamic axial load ratings are critical.
51440 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51440 | Standard metric series designation for a thrust ball bearing |
| Open (Seal Type) | No integral seals or shields; requires external sealing in contaminated environments |
51440 Bearing Structural Features & Performance Benefits
Heavy-Duty Axial Load Capacity: Designed specifically for thrust applications, this bearing features optimized raceway geometry and high-quality chrome steel balls to handle substantial axial dynamic load ratings of 218,065 lbf and axial static load ratings of 654,644 lbf.
Precision Engineering: With tight tolerances on bore diameter (-0.03mm to 0), outside diameter (-0.04mm to 0), and width (+0.03mm to -0.4mm), this bearing ensures precise fitment and consistent performance in precision assemblies.
Robust Construction: The chrome steel cage provides secure ball guidance and distribution, while the standardized bearing dimensions (200mm bore × 400mm OD × 155mm width) facilitate easy integration into existing designs.
Environmental Compliance: Meets ROHS and REACH standards, making it suitable for regulated industries and global applications.
51440 Bearing Typical Application Areas
- Heavy machinery requiring high axial load capacity
- Industrial presses and stamping equipment
- Crane hooks and lifting systems
- Vertical pumps and compressor systems
- Gearboxes with significant thrust components
- Construction equipment with axial load requirements
