51118
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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51118 Bearing Product Overview & Core Advantages
The 51118 metric thrust ball bearing is engineered for applications requiring high-precision axial load capacity in a compact design. This thrust bearing excels in handling heavy pure thrust loads with exceptional reliability. Manufactured from 52100 Chrome Steel for both rings and balls, it delivers superior durability and consistent performance in demanding industrial environments. Its precision-ground components ensure smooth operation and long service life, making it ideal for high-rigidity axial positioning systems.
51118 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51118 | Standard metric thrust ball bearing designation |
| Open | No seals or shields - optimized for lubrication access and heat dissipation |
51118 Bearing Structural Features & Performance Benefits
High Load Capacity Design: Engineered with precision-ground 52100 Chrome Steel components to deliver exceptional axial dynamic load rating of 13,320 lbf and axial static load rating of 46,800 lbf.
Optimized Thermal Performance: The open design allows for efficient heat dissipation and optimal lubrication flow, supporting continuous operation at limiting speeds up to 3,800 rpm.
Stainless Steel Cage: Features a durable stainless steel cage that maintains dimensional stability across the operating temperature range of -30° to 110°C, ensuring reliable performance in varying environmental conditions.
Precision Tolerances: Tight dimensional tolerances on bore diameter (90 mm ±0/-0.02mm) and outside diameter (120 mm ±0/-0.02mm) guarantee precise axial positioning and minimal runout.
51118 Bearing Typical Application Areas
- Industrial Machinery: Vertical pumps, heavy-duty gearboxes, and crane hooks requiring high axial load capacity
- Automotive Systems: Clutch release mechanisms and steering column assemblies
- Construction Equipment: Jacks, lifting systems, and hydraulic applications
- Power Transmission: Thrust positions in worm gear reducers and vertical shaft arrangements
- Material Handling: Conveyor systems and positioning tables requiring precise axial guidance
