51100
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51100
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
0.02 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
24 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
11 mm
Shaft washer outer diameter
24 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
1960 lbf
Axial static load rating
2745 lbf
Limiting speed
13 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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51100 Bearing Product Overview & Core Advantages
The 51100 metric thrust ball bearing is engineered for pure thrust applications requiring high precision and reliability. This bearing is designed to accommodate axial loads exclusively in one direction, making it an ideal solution for compact assemblies where space is at a premium. Manufactured from 52100 Chrome Steel for both rings and balls, it offers excellent durability and wear resistance. Its compact cross-section, defined by a 9 mm width, and compliance with ROHS and REACH directives, make it a modern, high-performance component for demanding applications.
51100 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51100 | Standard metric series designation for a single-direction thrust ball bearing with a 10 mm bore and 24 mm outside diameter. |
| Open (Seal Type) | Indicates an unsealed, open bearing design. This allows for higher limiting speeds and is suitable for applications where external sealing is provided or where the environment is clean. |
51100 Bearing Structural Features & Performance Benefits
- High-Precision Components: The use of 52100 Chrome Steel for both the rings and balls ensures high hardness, reduced wear, and consistent performance under load. The stainless steel cage provides superior corrosion resistance and stability at high speeds.
- Axial Load Capacity: Designed specifically for thrust loads, this bearing features a high axial dynamic load rating of 1960 lbf and a axial static load rating of 2745 lbf, enabling it to handle significant one-directional forces.
- Optimized for Speed: The open design and precision-ground components contribute to a high limiting speed of 13,000 rpm, making it suitable for applications requiring rapid rotation.
- Tight Dimensional Tolerances: Strict tolerances on the bore diameter, outside diameter, and width ensure precise fitment, reduced vibration, and reliable operation in high-precision assemblies.
51100 Bearing Typical Application Areas
- Automotive Systems: Steering systems, clutch release mechanisms.
- Industrial Machinery: Machine tool spindles, pulleys, and gearboxes.
- Pumps and Compressors: For supporting axial loads in impeller shafts.
- Precision Instruments & Office Equipment: High-speed scanners, printers, and copiers.
