51312
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Part No.
Part No.
51312
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
1.35 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
60 mm
Bore diameter tolerance
-0.015mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.02mm to 0
Width
35 mm
Width tolerance
+0.02mm to -0.3mm
Chamfer dimension
1.1 mm
Ball & Washer Dimensions
Housing washer inner diameter
62 mm
Shaft washer outer diameter
110 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
22725 lbf
Axial static load rating
50400 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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In Stock
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51312 Bearing Product Overview & Core Advantages
The 51312 is a metric thrust ball bearing engineered for demanding applications requiring high axial load capacity and precision operation. This thrust bearing is designed to accommodate heavy axial loads in one direction while maintaining smooth rotation. Manufactured from 52100 Chrome Steel for both rings and balls, it offers excellent durability and wear resistance. Its compact design and high load ratings make it an ideal solution for high-reliability scenarios where space is constrained and performance is critical.
51312 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 51312 | Basic Model Number | Indicates a metric, single-direction thrust ball bearing with a 60mm bore, 110mm OD, and 35mm width. |
| (No Suffix) | Open Seal Type | Designed for applications where the bearing is integrated into a sealed housing or will be re-lubricated. Allows for higher limiting speeds compared to shielded variants. |
51312 Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The bearing's geometry and use of chrome steel components enable a high axial dynamic load rating of 22,725 lbf and an axial static load rating of 50,400 lbf, making it suitable for heavy thrust applications.
- Precision & Rigidity: Manufactured with tight dimensional tolerances (e.g., bore diameter tolerance: -0.015mm to 0), ensuring precise shaft positioning and high system rigidity.
- Corrosion-Resistant Cage: The stainless steel cage provides excellent resistance to corrosion and ensures reliable performance, contributing to the bearing's longevity.
- Optimized for Speed: The open design and precision construction support a limiting speed of 3,000 rpm, suitable for various high-speed thrust applications.
- Material Integrity: Constructed entirely from 52100 Chrome Steel for rings and balls, offering high hardness, fatigue resistance, and reliable operation within a temperature range of -30°C to 110°C.
51312 Bearing Typical Application Areas
This thrust ball bearing is commonly specified in equipment requiring robust axial load support, including:
- Industrial Machinery: Vertical pumps, heavy-duty gearboxes, and crane hooks.
- Automotive Systems: Clutch release mechanisms and steering column assemblies.
- Power Transmission: Thrust positions in worm gear reducers and vertical shaft arrangements.
- General Engineering: Presses, jacks, and any application where significant one-direction axial force must be supported.
