591/900 M
1000 & 59000 Series Thin Section Thrust Ball Bearings
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Part No.
Part No.
591/900 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
140 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
900 mm
Bore diameter tolerance
-0.1mm to 0
Outside diameter
1060 mm
Outside diameter tolerance
-0.125mm to 0
Width
95 mm
Width tolerance
+0.08mm to -1.00mm
Chamfer dimension
5 mm
Ball & Washer Dimensions
Housing washer inner diameter
906 mm
Shaft washer outer diameter
1054 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
141750 lbf
Axial static load rating
1721250 lbf
Limiting speed
0.5 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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591/900 M Bearing Product Overview & Core Advantages
The 591/900 M is a metric thrust ball bearing engineered for demanding axial load applications. This bearing is characterized by its exceptionally large bore diameter of 900 mm, making it suitable for heavy-duty industrial machinery. Its core advantages include a high axial static load rating of 1,721,250 lbf, enabling it to support significant static forces, and a robust construction using 52100 Chrome Steel for both rings and balls, ensuring durability and reliable performance in high-load scenarios.
591/900 M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 591/900 | Indicates the bearing series and a 900 mm bore diameter. |
| M | Signifies that the bearing is manufactured from copper-manganese alloy steel, offering enhanced mechanical properties. |
| (No Seal Suffix) | The bearing is of Open type, allowing for custom lubrication solutions. |
591/900 M Bearing Structural Features & Performance Benefits
- Optimized for Pure Axial Loads: As a dedicated thrust bearing, its design is specialized to handle unidirectional axial loads efficiently, with a high dynamic rating of 141,750 lbf.
- Robust Material Construction: The use of 52100 Chrome Steel for rings and balls provides high hardness and wear resistance. The stainless steel cage ensures corrosion resistance and reliable ball guidance.
- Precision Tolerances: Tight dimensional tolerances on the bore, outside diameter, and width contribute to precise shaft and housing fits, enhancing overall system stability.
- Compliance & Safety: The bearing is compliant with ROHS and REACH regulations, ensuring it meets modern environmental and safety standards.
591/900 M Bearing Typical Application Areas
This large-bore thrust ball bearing is ideally suited for applications requiring high axial load capacity in large-scale machinery. Key industries and equipment include:
- Heavy-duty industrial vertical pumps
- Large crane hooks and slewing rings
- Extruders and injection molding machines
- Hydraulic press components
- Wind turbine pitch control systems
