51220
51200 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51220
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
2.2 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
100 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.025mm to 0
Width
38 mm
Width tolerance
+0.025mm to -0.3mm
Chamfer dimension
1.1 mm
Ball & Washer Dimensions
Housing washer inner diameter
103 mm
Shaft washer outer diameter
150 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
26775 lbf
Axial static load rating
73125 lbf
Limiting speed
2.4 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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51220 Bearing Product Overview & Core Advantages
The 51220 metric thrust ball bearing is engineered for high-precision axial load applications. Designed exclusively to handle thrust loads in a single direction, it delivers exceptional reliability and performance in demanding environments. Its compact design, combined with precision-ground components and strict dimensional tolerances, ensures smooth operation and long service life. Manufactured from 52100 Chrome Steel for rings and balls, it provides excellent durability and resistance to wear, making it ideal for applications requiring high axial load capacity and operational accuracy.
51220 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51220 | Basic model number indicating a metric thrust ball bearing with specific dimensions: 100mm bore, 150mm OD, 38mm width. |
| Open (Seal Type) | No integral seals; designed for applications where external sealing is provided or where maximum speed capability is prioritized. |
51220 Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: Engineered with precision-ground washers and balls to support substantial axial dynamic load ratings of 26775 lbf and axial static load ratings of 73125 lbf, ensuring robust performance under heavy thrust loads.
- Optimized for High-Speed Operation: The stainless steel cage provides superior strength and reduced friction, contributing to a limiting speed of 2400 rpm and stable operation at high velocities.
- Precision Tolerances: Tight dimensional controls on bore, outside diameter, and width ensure exact fit and alignment, critical for high-precision machinery and reducing vibration.
- Durable Material Construction: Components made from 52100 Chrome Steel offer high hardness and wear resistance, while the stainless steel cage resists corrosion, enhancing overall bearing longevity.
- Wide Temperature Range: Operates effectively from -30°C to 110°C, accommodating various industrial environments without performance degradation.
51220 Bearing Typical Application Areas
- Industrial Machinery: Thrust load sections in heavy-duty presses, machine tools, and injection molding machines.
- Automotive Systems: Applications in clutches, transmissions, and steering mechanisms requiring precise axial load support.
- Power Transmission: Used in gearboxes, pulleys, and other systems where axial forces are predominant.
- General Engineering: Suitable for jacks, lifting equipment, and rotating assemblies in construction and material handling equipment.
