51144 M
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Part No.
Part No.
51144 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
4.6 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
220 mm
Bore diameter tolerance
-0.03mm to 0
Outside diameter
270 mm
Outside diameter tolerance
-0.035mm to 0
Width
37 mm
Width tolerance
+0.03mm to -0.4mm
Chamfer dimension
1.1 mm
Ball & Washer Dimensions
Housing washer inner diameter
223 mm
Shaft washer outer diameter
267 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
40050 lbf
Axial static load rating
180000 lbf
Limiting speed
1.9 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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51144 M Bearing Product Overview & Core Advantages
The 51144 M is a metric thrust ball bearing engineered for applications requiring high axial load capacity and precision performance. This open-type bearing is designed to accommodate thrust loads in a single direction, featuring a robust construction that ensures reliable operation under demanding conditions. Its key advantages include a high axial static load rating of 180,000 lbf and a axial dynamic load rating of 40,050 lbf, making it suitable for heavy-duty applications. Manufactured from 52100 Chrome Steel for both rings and balls, and utilizing a Stainless Steel cage, it offers excellent durability and corrosion resistance, ideal for high-reliability industrial environments.
51144 M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51144 | Basic bearing designation indicating a metric thrust ball bearing with a 220 mm bore diameter, 270 mm outside diameter, and 37 mm width. |
| M | Signifies the use of a copper alloy cage (Note: Specification indicates Stainless Steel cage; "M" may refer to specific manufacturer design or material grade for enhanced performance). |
51144 M Bearing Structural Features & Performance Benefits
- High Load Capacity: The bearing is specifically designed to handle high axial thrust loads, with an exceptional static load rating of 180,000 lbf, providing stability and longevity in heavy-load scenarios.
- Precision Engineering: Features tight dimensional tolerances (bore: -0.03mm to 0, outside diameter: -0.035mm to 0) ensuring precise fit and alignment, critical for high-precision applications.
- Durable Material Construction: Rings and balls made from 52100 Chrome Steel offer high hardness and wear resistance, while the Stainless Steel cage provides superior strength and corrosion resistance, enhancing overall bearing life.
- Optimized Speed Performance: With a limiting speed of 1,900 rpm, the bearing is suitable for moderate-speed operations, supported by its stable cage design and open structure for efficient lubrication.
- Wide Temperature Range: Operates effectively in temperatures from -30°C to 110°C, accommodating various industrial environments without performance degradation.
51144 M Bearing Typical Application Areas
- Industrial Machinery: Used in heavy-duty thrust applications such as vertical pumps, compressors, and gearboxes where high axial loads are present.
- Construction Equipment: Ideal for cranes, hoists, and other lifting mechanisms requiring reliable thrust load support.
- Automotive Systems: Applied in clutch assemblies, steering mechanisms, and transmission components that demand precise axial load management.
- Agricultural Machinery: Suitable for tractors and harvesters where robust thrust bearings are essential for operational durability.
- General Engineering: Used in various rotating equipment and machinery frames needing dependable axial positioning and load handling.
