591/850 M
1000 & 59000 Series Thin Section Thrust Ball Bearings
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Part No.
Part No.
591/850 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
115 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
850 mm
Bore diameter tolerance
-0.1mm to 0
Outside diameter
1000 mm
Outside diameter tolerance
-0.1mm to 0
Width
90 mm
Width tolerance
+0.08mm to -1.00mm
Chamfer dimension
4 mm
Ball & Washer Dimensions
Housing washer inner diameter
855 mm
Shaft washer outer diameter
995 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
171225 lbf
Axial static load rating
1530000 lbf
Limiting speed
0.6 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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591/850 M Bearing Product Overview & Core Advantages
The 591/850 M is a metric thrust ball bearing engineered for applications requiring exceptional axial load capacity and robust construction. Designed specifically to accommodate thrust loads in a single direction, this bearing features a large bore diameter of 850 mm, making it suitable for heavy-duty industrial machinery. Its key advantages include a high axial static load rating of 1,530,000 lbf, reliable performance within a temperature range of -30°C to 110°C, and compliance with RoHS and REACH environmental standards, ensuring both mechanical reliability and regulatory adherence.
591/850 M Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 591 | Designates the bearing series, indicating a thrust ball bearing design. |
| 850 | Specifies the bore diameter in millimeters (850 mm). |
| M | Indicates the use of Stainless Steel for the cage material, offering enhanced corrosion resistance. |
591/850 M Bearing Structural Features & Performance Benefits
- High Axial Load Capacity: Constructed from 52100 Chrome Steel for both rings and balls, this bearing delivers a substantial axial dynamic load rating of 171,225 lbf and an exceptional axial static load rating of 1,530,000 lbf, making it ideal for sustaining heavy thrust loads.
- Precision Dimensions & Stability: Features tight dimensional tolerances on the bore, outside diameter, and width, ensuring precise fit and stable operation in the housing and on the shaft. The specified housing washer inner diameter (855 mm) and shaft washer outer diameter (995 mm) facilitate correct installation.
- Durable Cage Construction: The stainless steel cage provides excellent durability and resistance to corrosion, contributing to the bearing's longevity and reliable performance under demanding conditions.
- Operational Limits: With a limiting speed of 0.6 x 1000 rpm and a temperature range of -30°C to 110°C, it is suited for moderate-speed applications in varied thermal environments.
591/850 M Bearing Typical Application Areas
This thrust ball bearing is commonly employed in heavy machinery and industrial systems where significant axial loads are present. Typical applications include:
- Vertical Pumps and Industrial Gearboxes
- Large Presses and Extrusion Equipment
- Crane Hooks and Heavy-Lifting Mechanisms
- Mining Equipment and Construction Machinery
