51106
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51106
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
0.063 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.012mm to 0
Width
11 mm
Width tolerance
+0.02mm to -0.25mm
Chamfer dimension
0.6 mm
Ball & Washer Dimensions
Housing washer inner diameter
32 mm
Shaft washer outer diameter
47 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
4275 lbf
Axial static load rating
9675 lbf
Limiting speed
8.5 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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51106 Bearing Product Overview & Core Advantages
The 51106 is a metric thrust ball bearing engineered for pure thrust applications requiring high precision and reliability. This bearing is characterized by its ability to accommodate high axial dynamic loads while maintaining stable operation. Its compact design, featuring a single-direction thrust capacity, makes it an ideal solution for assemblies with limited axial space. Manufactured from high-grade 52100 Chrome Steel and featuring a stainless steel cage, it delivers consistent performance and extended service life in demanding environments.
51106 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51106 | Standard designation for a metric thrust ball bearing with a 30mm bore diameter. |
| Open (Seal Type) | The bearing is supplied without seals or shields, allowing for higher limiting speeds and facilitating relubrication if required by the application. |
51106 Bearing Structural Features & Performance Benefits
- High Load Capacity: The bearing's geometry and use of chrome steel components enable it to support a high axial dynamic load rating of 4275 lbf and an even greater axial static load rating of 9675 lbf, making it robust for heavy thrust applications.
- Precision & Stability: Manufactured with tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise fit and reliable performance in high-accuracy assemblies.
- High-Speed Capability: The stainless steel cage provides strength and reduced friction, contributing to a high limiting speed of 8,500 rpm.
- Durability & Compliance: Constructed from 52100 Chrome Steel for both rings and balls, offering excellent wear resistance. The bearing is compliant with ROHS and REACH environmental standards.
51106 Bearing Typical Application Areas
This thrust ball bearing is commonly specified in applications requiring management of substantial axial loads in a single direction. Key industries and equipment include:
- Automotive Transmissions: For thrust support in gear assemblies.
- Machine Tool Spindles: To handle axial forces in precision machining centers.
- Pumps and Compressors: For axial positioning and load carrying in rotating shafts.
- Agricultural Machinery: In gearboxes and power transmission systems.
- General Industrial Machinery: Wherever reliable thrust load support is needed.
