618/850 MA
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
618/850 MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
140 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
850 mm
Bore diameter tolerance
-0.06mm to 0
Outside diameter
1030 mm
Outside diameter tolerance
-0.075mm to 0
Width
82 mm
Width tolerance
-1mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
125668 lbf
Radial static load rating
321477 lbf
Limiting speed
0.75 X 1000 rpm
Lubrication
None
Radial internal clearance
CN
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 9773.22
/ each
In Stock
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618/850 MA Bearing Product Overview & Core Advantages
The 618/850 MA is a single row deep groove ball bearing designed for exceptional performance in demanding applications. Characterized by its open design and P6 tolerance class, this bearing offers high precision and reliability. Its primary advantage lies in its ability to accommodate high radial loads, making it an ideal choice for heavy-duty machinery. The robust construction, featuring chrome steel rings and balls with a stainless steel cage, ensures long service life and consistent operation under challenging conditions.
618/850 MA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 618 | Series Designation | Denotes a deep groove ball bearing series with a particularly thin cross-section. |
| 850 | Bore Diameter | Indicates a massive 850 mm bore diameter. |
| MA | Cage Type | Specifies a machined brass cage, offering high strength and excellent guidance for high-speed applications. |
618/850 MA Bearing Structural Features & Performance Benefits
- High Load Capacity: Engineered with a single row of balls and a deep groove raceway, this bearing is optimized to support high radial dynamic load ratings of 125,668 lbf and radial static load ratings of 321,477 lbf.
- Precision & Rigidity: Manufactured to a P6 tolerance class with a CN radial internal clearance, it provides precise running accuracy and enhanced system rigidity.
- High-Speed Suitability: The combination of the machined brass (MA) cage and optimized geometry contributes to stable operation, even at its specified limiting speed.
- Durability & Compliance: Constructed from high-grade chrome steel and compliant with ROHS and REACH standards, it guarantees durability and environmental safety.
618/850 MA Bearing Typical Application Areas
This large-bore ball bearing is ideally suited for heavy industrial equipment where high radial load capacity and precision are paramount. Common applications include:
- Large industrial gearboxes
- Heavy-duty pumps and compressors
- Mining and construction machinery
- Paper and steel mill equipment
- Large turntables and rotators
