61976 MA
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
61976 MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
40 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
380 mm
Bore diameter tolerance
-0.03mm to 0
Outside diameter
520 mm
Outside diameter tolerance
-0.038mm to 0
Width
65 mm
Width tolerance
-0.4mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
75985 lbf
Radial static load rating
121397 lbf
Limiting speed
1.9 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:
$ 2304.75
/ each
In Stock
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61976 MA Bearing Product Overview & Core Advantages
The 61976 MA is a single row deep groove ball bearing engineered for exceptional performance in demanding industrial applications. This precision bearing is designed to primarily accommodate high radial loads while also handling moderate axial loads in both directions. Manufactured to a P6 tolerance class, it offers superior running accuracy, making it ideal for applications requiring high rotational precision and reliability. Its open design allows for versatile lubrication options and facilitates high-speed operation.
61976 MA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Interpretation | Technical Significance |
|---|---|---|
| M | Machined Brass Cage | Indicates the use of a machined brass cage, offering high strength, excellent guidance, and suitability for high-speed applications and demanding operating conditions. |
| A | Internal Design | Signifies specific internal design optimizations, potentially related to the ball groove geometry for enhanced load capacity and performance. |
61976 MA Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The single row deep groove construction with optimized raceway geometry provides a high radial dynamic load rating of 75,985 lbf and a radial static load rating of 121,397 lbf, ensuring stable operation under significant stress.
- High-Speed Capability: The combination of the machined brass cage (M suffix) and an open design contributes to a high limiting speed of 1,900 rpm, reducing friction and heat generation.
- Precision Performance: Manufactured to P6 tolerance class with a standard (CN) radial internal clearance, this bearing guarantees precise shaft positioning, reduced vibration, and smooth rotation, which is critical for precision machinery.
- Durability & Material Quality: Rings and balls made from high-grade Chrome Steel provide excellent wear resistance and fatigue life. The stainless steel cage offers superior corrosion resistance.
- Versatile Lubrication: The open seal type allows for the use of various lubricants (oil or grease) tailored to specific application needs, including high-temperature environments up to 120°C.
61976 MA Bearing Typical Application Areas
This bearing is suited for heavy-duty industrial applications requiring high precision and reliability, including:
- Industrial Gearboxes and Heavy Machinery
- Large Electric Motors and Generators
- Vibrating Screens and Construction Equipment
- Pump and Compressor Systems
- Main Spindles in Large Machine Tools
