51240 M
51200 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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51240 M Bearing Product Overview & Core Advantages
The 51240 M is a high-capacity metric thrust ball bearing engineered for demanding applications requiring exceptional axial load capacity and precision. This bearing is designed to accommodate thrust loads in a single direction, featuring a robust construction with a stainless steel cage for enhanced durability. Its high axial static and dynamic load ratings make it an ideal choice for heavy-duty machinery where reliability under significant force is paramount. The open design allows for versatile lubrication options, optimizing performance across its specified temperature range.
51240 M Bearing Model Code Explained, Specifications & Naming Convention
- 51240: Basic model number denoting a thrust ball bearing with a 200 mm bore and 280 mm outside diameter.
- M: Designates the cage material as Stainless Steel, providing superior strength and corrosion resistance compared to standard materials.
51240 M Bearing Structural Features & Performance Benefits
The 51240 M's performance is derived from its specific structural design. The use of 52100 Chrome Steel for both rings and balls ensures high hardness and wear resistance, directly contributing to its high axial dynamic and static load ratings of 74,700 lbf and 281,250 lbf respectively. The stainless steel cage provides excellent guidance for the balls, maintaining stability at the limiting speed of 1,400 rpm. The precise dimensional tolerances on the bore, outside diameter, and width guarantee a secure fit and reliable operation in the assembly, ensuring consistent performance under heavy thrust loads.
51240 M Bearing Typical Application Areas
This bearing is suited for applications involving high axial forces and moderate speeds. Common uses include:
- Heavy-Duty Industrial Gearboxes
- Vertical Pumps and Compressors
- Crane Hooks and Lifting Systems
- Machine Tool Tables and Screw Downs
- Marine Propulsion Systems
