51338 M
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Part No.
Part No.
51338 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
36.5 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
190 mm
Bore diameter tolerance
-0.03mm to 0
Outside diameter
320 mm
Outside diameter tolerance
-0.04mm to 0
Width
105 mm
Width tolerance
+0.03mm to -0.4mm
Chamfer dimension
4 mm
Ball & Washer Dimensions
Housing washer inner diameter
195 mm
Shaft washer outer diameter
315 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
125775 lbf
Axial static load rating
495000 lbf
Limiting speed
1 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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51338 M Bearing Product Overview & Core Advantages
The 51338 M is a metric thrust ball bearing engineered for demanding applications requiring high axial load capacity and precision operation. This bearing is specifically designed to accommodate thrust loads in a single direction, making it an ideal solution for scenarios where heavy axial forces are predominant. Manufactured from high-grade 52100 Chrome Steel for both rings and balls, it ensures exceptional durability and wear resistance. Its open design allows for versatile lubrication options, while its robust construction guarantees high rigidity and reliable performance in industrial environments.
51338 M Bearing Model Code Explained, Specifications & Naming Convention
The model number 51338 M can be broken down as follows:
- 51338: Denotes the standard thrust ball bearing series with a 190mm bore and 320mm outside diameter.
- M: Indicates that the bearing is manufactured from machined brass cage material. In this specific bearing, the cage is made from Stainless Steel, providing excellent strength and corrosion resistance for the guiding cage.
51338 M Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: With an impressive axial dynamic load rating of 125,775 lbf and a massive axial static load rating of 495,000 lbf, this bearing is built to handle significant thrust forces, ensuring long service life under heavy loads.
- Precision Ground Components: The tight dimensional tolerances on the bore, outside diameter, and width contribute to precise shaft and housing fits, promoting accurate alignment and smooth operation.
- Optimized Cage Design: The stainless steel cage provides superior guidance for the balls, ensuring stable operation and contributing to the bearing's limiting speed of 1,000 rpm.
- Wide Operating Temperature Range: Suitable for operations from -30°C to 110°C, offering reliability across various environmental conditions.
- Compliant Material: The bearing is ROHS and REACH compliant, meeting modern environmental and safety standards.
51338 M Bearing Typical Application Areas
The 51338 M thrust ball bearing is commonly specified in heavy-duty machinery and precision equipment, including:
- Industrial Thrust Applications: Such as heavy-duty screw jacks, vertical pumps, and crane hooks.
- Power Transmission Systems: Used in applications like worm gear reducers where significant axial loads are present.
- Machine Tools: Employed in the positioning tables and spindles that require handling of high thrust loads.
- Marine and Offshore Equipment: Suitable for steering gears and propeller thrust blocks due to its high load capacity.
