51140 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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51140 M Bearing Product Overview & Core Advantages
The 51140 M is a metric thrust ball bearing engineered for demanding applications requiring exceptional axial load capacity and precision performance. This bearing is specifically designed to accommodate 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 wear resistance. The open seal type allows for versatile lubrication options, while the stainless steel cage provides reliable operation and corrosion resistance. With its high axial dynamic and static load ratings, the 51140 M delivers outstanding reliability and long service life in precision machinery.
51140 M Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 51140 | Basic bearing designation indicating a metric thrust ball bearing with a 200mm bore and 250mm outside diameter. |
| M | Signifies copper alloy cage construction, providing enhanced strength and thermal conductivity for demanding applications. |
51140 M Bearing Structural Features & Performance Benefits
High Load Capacity: Engineered with precision-ground 52100 Chrome Steel rings and balls, this bearing delivers exceptional axial dynamic load rating of 37,800 lbf and axial static load rating of 159,750 lbf, making it suitable for heavy-duty thrust applications.
Optimized Cage Design: The stainless steel cage ensures proper ball guidance and spacing, contributing to smooth operation and extended service life even under high-speed conditions with a limiting speed of 1,900 rpm.
Precision Tolerances: Tight dimensional control with bore diameter tolerance of -0.03mm to 0 and outside diameter tolerance of -0.03mm to 0 ensures precise fit and optimal performance in critical applications.
Wide Temperature Range: Operating temperature range of -30°C to 110°C allows for reliable performance in various environmental conditions and industrial settings.
51140 M Bearing Typical Application Areas
The 51140 M thrust ball bearing is ideally suited for applications requiring high axial load capacity and precision performance, including:
- Industrial machinery - crane hooks, vertical pumps, and heavy-duty gearboxes
- Automotive systems - steering mechanisms and clutch assemblies
- Construction equipment - hoists, jacks, and lifting systems
- Power transmission - thrust applications in motors and reducers
- Material handling equipment - where high axial loads are present
