QJ 332 N2MA
Four-Point Contact Bearings Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
QJ 332 N2MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
34.5 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
160 mm
Bore diameter tolerance
-0.018mm to 0
Outside diameter
340 mm
Outside diameter tolerance
-0.028mm to 0
Width
68 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
4 mm
Distance from side face to load point
175 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
224 mm
Outer Ring Dimensions
Shoulder diameter outer ring
276 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
128250 lbf
Radial static load rating
198000 lbf
Limiting speed
3.4 X 1000 rpm
Lubrication
Lubricated
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 502.22
/ each
In Stock
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QJ 332 N2MA Bearing Product Overview & Core Advantages
The QJ 332 N2MA is a Four Point Contact Ball Bearing designed for exceptional performance in demanding applications. This single row bearing is engineered to simultaneously withstand combined radial and axial loads from both directions, making it an ideal solution for compact, high-rigidity designs. Manufactured to a P6 (ABEC-3) tolerance class, it delivers the precision required for high-performance machinery. Its robust construction and optimized internal geometry ensure reliable operation and long service life.
QJ 332 N2MA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| N2 | Indicates the bearing has two integral locating slots for retaining rings in the outer ring. |
| MA | Signifies that the bearing is lubricated with a specific high-performance grease suitable for the designated temperature range. |
QJ 332 N2MA Bearing Structural Features & Performance Benefits
- Four Point Contact Design: The raceway geometry allows the bearing to handle combined radial and axial loads efficiently. The single-row design provides a compact cross-section while offering the load-carrying capacity typically associated with a more complex arrangement.
- High Load Capacity: With a dynamic load rating of 128,250 lbf and a static load rating of 198,000 lbf, this bearing is built for heavy-duty applications requiring high reliability.
- Precision & Rigidity: The P6 tolerance class ensures precise running accuracy, contributing to reduced vibration and enhanced system performance. The brass cage provides excellent dimensional stability and guidance at the limiting speed of 3,400 rpm.
- Simplified Assembly: The N2 suffix denotes the presence of locating slots, facilitating secure and straightforward mounting within the housing using retaining rings.
- Ready-to-Use Lubrication: The MA suffix indicates the bearing is pre-lubricated, ensuring immediate operation and reducing initial setup time.
QJ 332 N2MA Bearing Typical Application Areas
This bearing is ideally suited for applications requiring a compact design with high load-carrying capacity and precise operation. Key industries and equipment include:
- Industrial Gearboxes
- Heavy-Duty Pumps and Compressors
- Construction and Mining Equipment
- Material Handling Systems
- Wind Turbine Yaw and Pitch Systems
