51313
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Part No.
Part No.
51313
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
1.5 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.02mm to 0
Width
36 mm
Width tolerance
+0.02mm to -0.3mm
Chamfer dimension
1.1 mm
Ball & Washer Dimensions
Housing washer inner diameter
67 mm
Shaft washer outer diameter
115 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
23850 lbf
Axial static load rating
54000 lbf
Limiting speed
3 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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51313 Bearing Product Overview & Core Advantages
The 51313 is a metric thrust ball bearing engineered for applications requiring high axial load capacity and precision operation. This thrust bearing is designed to accommodate unidirectional axial loads and is characterized by its robust construction using 52100 Chrome Steel for both rings and balls. Its open design allows for versatile lubrication options, making it suitable for high-reliability scenarios where controlled axial movement is critical.
51313 Bearing Model Code Explained, Specifications & Naming Convention
The model number 51313 follows a standard thrust bearing designation system. Here is a breakdown:
- 5: Indicates a thrust ball bearing.
- 13: Specifies the bore diameter code. For this series, this corresponds to a 65 mm bore.
- 13: Specifies the outside diameter and width series.
- Seal Type: Open - No integral seals, allowing for high-speed operation and custom lubrication.
- Cage Material: Stainless Steel - Provides excellent durability and corrosion resistance for the cage.
51313 Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The bearing's design and use of high-grade 52100 Chrome Steel enable it to handle significant axial dynamic load ratings of 23,850 lbf and axial static load ratings of 54,000 lbf, making it ideal for heavy-duty thrust applications.
- Precision Ground Components: Tight tolerances on the bore diameter and outside diameter ensure precise shaft and housing fits, contributing to stable performance and reduced vibration.
- High-Speed Capability: The stainless steel cage and open design contribute to a limiting speed of 3,000 rpm, suitable for various high-speed machinery.
- Durability & Compliance: Manufactured from 52100 Chrome Steel for high wear resistance and compliant with ROHS and REACH environmental standards.
51313 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 forces in rotating shafts.
- Machine Tool Spindles: Where precise axial positioning is required.
- Marine Propulsion Systems: For handling thrust loads in propeller shafts.
- Heavy-Duty Machinery: In applications like crane hooks and vertical shafts subject to significant axial forces.
