51103
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51103
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
0.025 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
30 mm
Outside diameter tolerance
-0.01mm to 0
Width
9 mm
Width tolerance
+0.02mm to -0.25mm
Chamfer dimension
0.3 mm
Ball & Washer Dimensions
Housing washer inner diameter
18 mm
Shaft washer outer diameter
30 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
2565 lbf
Axial static load rating
4770 lbf
Limiting speed
12 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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51103 Bearing Product Overview & Core Advantages
The 51103 metric thrust ball bearing is engineered for high-precision axial load applications. Designed specifically to accommodate unidirectional thrust loads, this bearing features an open design for optimal lubrication access and high-speed operation. Manufactured from 52100 Chrome Steel for rings and balls with a Stainless Steel cage, it delivers exceptional durability and corrosion resistance. Its compact design, with a 9mm width, makes it ideal for applications where space is constrained while maintaining high load capacity and rotational accuracy.
51103 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51103 | Standard metric thrust ball bearing designation with 17mm bore, 30mm OD |
| Open | No seals or shields, enabling high-speed operation and direct lubrication |
51103 Bearing Structural Features & Performance Benefits
- High Load Capacity: Engineered with 52100 Chrome Steel components to handle substantial axial dynamic load ratings of 2565 lbf and axial static load ratings of 4770 lbf
- Precision Engineering: Tight dimensional tolerances (bore: -0.008mm to 0, width: +0.02mm to -0.25mm) ensure consistent performance and easy installation
- High-Speed Capability: Stainless Steel cage and open design support limiting speeds up to 12,000 rpm
- Temperature Resilience: Operational range from -30°C to 110°C accommodates various industrial environments
- Compact & Lightweight: At just 9mm width and 0.025kg weight, ideal for space-constrained applications
51103 Bearing Typical Application Areas
- Automotive Systems: Steering mechanisms, transmission components
- Industrial Machinery: Machine tool spindles, positioning tables
- Pumps & Compressors: Thrust load applications in rotary equipment
- Aerospace Components: Actuators and control systems
- Medical Equipment: Precision instruments requiring axial load support
