618/950 MA
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
618/950 MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
197 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
950 mm
Bore diameter tolerance
-0.06mm to 0
Outside diameter
1150 mm
Outside diameter tolerance
-0.075mm to 0
Width
90 mm
Width tolerance
-1mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
143203 lbf
Radial static load rating
388919 lbf
Limiting speed
0.67 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
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In Stock
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618/950 MA Bearing Product Overview & Core Advantages
The 618/950 MA is a single row deep groove ball bearing engineered for applications demanding exceptional radial load capacity and precision. Characterized by its open design and P6 tolerance class, this bearing is ideal for high-performance machinery requiring reliable operation under substantial loads. Its robust construction from chrome steel ensures durability and long service life, making it a superior choice for heavy-duty industrial environments.
618/950 MA Bearing Model Code Explained, Specifications & Naming Convention
The model number 618/950 MA is decoded as follows:
- 618: Series designation for metric, single row deep groove ball bearings.
- 950: Bore diameter in millimeters (950 mm).
- M: Denotes a machined brass cage, offering high strength and suitability for high-speed applications.
- A: Indicates enhanced internal design for optimized load distribution and performance.
618/950 MA Bearing Structural Features & Performance Benefits
- High Radial Load Capacity: The single row deep groove design is optimized to handle significant radial dynamic load ratings of 143,203 lbf and static load ratings of 388,919 lbf, providing reliable support in demanding conditions.
- Precision Engineering: Manufactured to P6 tolerance class with a standard radial internal clearance (CN), ensuring consistent performance, reduced vibration, and enhanced operational accuracy.
- High-Speed Capability: The stainless steel cage and optimized geometry contribute to stable operation, though the limiting speed is 0.67 x 1000 rpm, suited for moderate-speed, high-load applications.
- Robust Material Construction: Rings and balls made from chrome steel provide high hardness and wear resistance, while the cage material ensures corrosion resistance and durability.
- Wide Temperature Range: Operates effectively within a temperature range of -30°C to 120°C, accommodating various industrial environments.
618/950 MA Bearing Typical Application Areas
The 618/950 MA is suited for heavy machinery and precision equipment, including:
- Large Industrial Gearboxes
- Heavy-Duty Pumps and Compressors
- Mining and Construction Equipment
- Paper and Steel Mill Machinery
- Wind Turbine Main Shafts
