61938 MA
618 & 619 Series Thin Section Bearings
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Part No.
Part No.
61938 MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
5.21 kg
Tolerance class
P6
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
190 mm
Bore diameter tolerance
-0.022mm to 0
Outside diameter
260 mm
Outside diameter tolerance
-0.025mm to 0
Width
33 mm
Width tolerance
-0.3mm to 0
Performance
Temperature range
-30° to 120 °C
Radial dynamic load rating
26303 lbf
Radial static load rating
30124 lbf
Limiting speed
4.3 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:
$ 655.78
/ each
In Stock
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61938 MA Bearing Product Overview & Core Advantages
The 61938 MA is a single row deep groove ball bearing designed for exceptional performance in demanding applications. This precision bearing features a P6 tolerance class and CN radial internal clearance, ensuring high running accuracy and reliable operation. Its open design allows for versatile lubrication options, while the robust construction using chrome steel rings and balls with a stainless steel cage delivers excellent durability and a high limiting speed of 4,300 rpm. It is engineered to handle significant radial loads efficiently, making it an ideal choice for high-precision, high-reliability machinery.
61938 MA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61938 | Basic bearing designation, indicating a deep groove ball bearing with a 190mm bore and 260mm outside diameter. |
| M | Designates a stainless steel cage, offering high strength and corrosion resistance for stable operation at high speeds. |
| A | Indicates a specific internal design or optimization, often related to enhanced performance characteristics. |
61938 MA Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Manufactured to a P6 tolerance class, this bearing provides superior dimensional accuracy and rotational precision, essential for applications requiring minimal runout and vibration.
- Excellent Load Capacity: With a high radial dynamic load rating of 26,303 lbf and a radial static load rating of 30,124 lbf, it is built to withstand substantial radial forces, ensuring long service life.
- Optimized High-Speed Performance: The combination of the stainless steel cage (M) and precision-ground chrome steel components enables a high limiting speed, making it suitable for rapid rotation applications.
- Versatile Application Range: The open seal type allows for custom lubrication schemes to suit specific operational needs, while the standard CN radial clearance provides a balanced performance for most operating conditions.
- Robust Material Construction: The use of chrome steel for rings and balls ensures high wear resistance and durability, capable of operating within a temperature range of -30°C to 120°C.
61938 MA Bearing Typical Application Areas
This single row ball bearing is ideally suited for a wide range of industrial machinery and precision equipment, including:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Equipment
- Pumps and Compressors
- Precision Machine Tool Spindles
