51332 M
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Part No.
Part No.
51332 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
21 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
160 mm
Bore diameter tolerance
-0.025mm to 0
Outside diameter
270 mm
Outside diameter tolerance
-0.035mm to 0
Width
87 mm
Width tolerance
+0.025mm to -0.4mm
Chamfer dimension
3 mm
Ball & Washer Dimensions
Housing washer inner diameter
164 mm
Shaft washer outer diameter
265 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
99450 lbf
Axial static load rating
360000 lbf
Limiting speed
1.2 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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51332 M Bearing Product Overview & Core Advantages
The 51332 M is a metric thrust ball bearing engineered for demanding applications requiring exceptional axial load capacity and precision performance. This bearing features an open design for high-speed operation and efficient lubrication. Its primary advantage lies in its ability to accommodate very high unidirectional thrust loads, both dynamic and static, making it an ideal solution for heavy-duty machinery. Manufactured from high-grade 52100 Chrome Steel with a stainless steel cage, it ensures durability, reliable operation, and long service life in challenging industrial environments.
51332 M Bearing Model Code Explained, Specifications & Naming Convention
The model number 51332 M can be broken down as follows:
- 51332: The basic bearing designation, indicating a metric thrust ball bearing with a 160 mm bore and 270 mm outside diameter.
- M: This suffix denotes that the bearing's cage is machined from solid material. In this case, the material is Stainless Steel, which provides high strength and excellent corrosion resistance, contributing to the bearing's stability and performance at high speeds.
- Open (No Seal): The absence of a seal suffix indicates an open bearing, optimized for applications where external lubrication is used, allowing for higher limiting speeds.
51332 M Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: The robust design and use of high-quality materials enable the bearing to support an axial dynamic load rating of 99,450 lbf and a substantial axial static load rating of 360,000 lbf, making it suitable for applications with significant thrust forces.
- High-Speed Capability: The machined stainless steel cage (M suffix) ensures precise guidance of the balls, reducing friction and wear. This, combined with the open design, allows for a limiting speed of 1,200 rpm under appropriate lubrication conditions.
- Precision and Stability: Manufactured with tight dimensional tolerances on the bore diameter, outside diameter, and width, the bearing provides precise shaft and housing fits, ensuring stable operation and minimal runout.
- Durability and Corrosion Resistance: The 52100 Chrome Steel rings and balls offer high hardness and wear resistance, while the stainless steel cage provides added protection against corrosion, extending the bearing's operational life.
51332 M Bearing Typical Application Areas
The 51332 M thrust ball bearing is designed for heavy machinery and equipment that experiences high axial loads. Common applications include:
- Heavy-Duty Thrust Applications: Such as in vertical pumps, industrial gearboxes, and crane hooks.
- Power Transmission Systems: Used in applications like screw down systems in rolling mills and large marine thrusters.
- Construction and Mining Equipment: Ideal for machinery requiring robust components to handle significant thrust forces, such as in excavators and tunnel boring machines.
- Industrial Machinery: Found in presses, injection molding machines, and other equipment where high unidirectional thrust loads are present.
