51156 M
51100 & 51000 Series Single Direction Thrust Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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51156 M Bearing Product Overview & Core Advantages
The 51156 M is a metric thrust ball bearing engineered for demanding applications requiring exceptional axial load capacity and precision. This bearing is designed exclusively to accommodate heavy thrust loads in a single direction, making it an ideal solution for high-stress environments. Its robust construction from 52100 Chrome Steel ensures superior durability and reliable performance. The open design facilitates efficient lubrication management, contributing to stable operation within its specified temperature range. This bearing represents a high-performance component for systems where axial force is the primary loading condition.
51156 M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 51156 | Basic Bearing Number | Defines the core dimensions: 280mm bore, 350mm OD, 53mm width for a thrust ball bearing. |
| M | Machined Brass Cage | Indicates a stainless steel cage, offering high strength, excellent guidance, and suitability for higher rotational speeds. |
51156 M Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: Engineered with precision-ground raceways and balls to handle substantial axial dynamic load ratings of 71,775 lbf and impressive axial static load ratings of 328,500 lbf.
- Robust Construction: Manufactured from 52100 Chrome Steel for both rings and balls, ensuring high hardness, wear resistance, and long service life.
- Stainless Steel Cage: The "M" designation cage provides superior strength and corrosion resistance, contributing to reliable ball guidance and stable performance at the limiting speed.
- Open Seal Type: The open design allows for versatile lubrication options, enabling optimal performance customization for specific application needs and facilitating maintenance.
- Precision Tolerances: Features tight dimensional tolerances on the bore diameter, outside diameter, and width, ensuring precise fit and reliable operation in assembled machinery.
51156 M Bearing Typical Application Areas
The 51156 M thrust ball bearing is critical in heavy-duty machinery and equipment where significant unidirectional axial forces are present. Key applications include:
- Vertical Pumps and Compressors: For supporting the axial weight of impellers and rotors.
- Cranes and Hoisting Equipment: Used in slewing mechanisms and hook assemblies.
- Heavy-Duty Gearboxes: To accommodate thrust loads within transmission systems.
- Industrial Presses and Extrusion Machinery: For managing high axial forces during operation.
- Marine Propulsion Systems: Particularly in thrusters and propeller shafts.
