1115
1000 & 59000 Series Thin Section Thrust Ball Bearings
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Part No.
Part No.
1115
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
0.83 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.02mm to 0
Width
27 mm
Width tolerance
+0.02mm to -0.3mm
Chamfer dimension
1 mm
Ball & Washer Dimensions
Housing washer inner diameter
75.2 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
4190 lbf
Axial static load rating
31950 lbf
Limiting speed
3.06 X 1000 rpm
Lubrication
Required
Materials
Ring material
52100 Chrome Steel
Ball material
52100 Chrome Steel
Cage material
Chrome Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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1115 Bearing Product Overview & Core Advantages
The 51115 thrust ball bearing is a metric single-direction thrust bearing engineered for applications requiring high-precision axial load support. Its design is optimized to accommodate heavy thrust loads in one direction while maintaining a compact cross-section. Manufactured from 52100 Chrome Steel for both rings and balls, this bearing offers excellent durability and wear resistance. It is ideal for high-reliability scenarios where precise axial positioning and robust load capacity are paramount.
1115 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51115 | Indicates a standard metric, single-direction thrust ball bearing with a 75mm bore diameter. |
| Open (Seal Type) | The bearing is supplied without seals or shields, allowing for higher speed capability and requiring external lubrication and protection from contaminants. |
1115 Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The single-direction design is specifically engineered to handle significant axial dynamic load ratings of 4190 lbf and axial static load ratings of 31950 lbf, providing reliable performance under heavy thrust forces.
- Precision Ground Components: Features tight dimensional tolerances on the bore diameter and outside diameter, ensuring precise shaft and housing fits for accurate axial positioning.
- Robust Material Construction: Utilizes 52100 Chrome Steel for rings and balls, paired with a Chrome Steel cage, for high strength, resistance to deformation, and long service life.
- Compact Design & High-Speed Potential: With a limiting speed of 3060 rpm and a low cross-sectional width of 27 mm, this bearing is suitable for compact assemblies requiring high-speed operation.
1115 Bearing Typical Application Areas
This thrust ball bearing is commonly specified in industries and equipment including:
- Automotive Transmissions: For supporting axial loads in gear assemblies.
- Industrial Pumps and Compressors: To manage thrust loads in rotating shafts.
- Machine Tool Spindles: For precise axial location and thrust load support.
- Marine Propulsion Systems: To handle propeller thrust.
- Heavy-Duty Turntables and Cranes: For applications involving significant axial forces.
