QJ 1088 N2MA
Four-Point Contact Bearings Ball Bearings
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Part No.
Part No.
QJ 1088 N2MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
114 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
440 mm
Bore diameter tolerance
-0.035mm to 0
Outside diameter
650 mm
Outside diameter tolerance
-0.045mm to 0
Width
94 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
6 mm
Distance from side face to load point
382 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
513 mm
Outer Ring Dimensions
Shoulder diameter outer ring
577 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
223875 lbf
Radial static load rating
562500 lbf
Limiting speed
1.4 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
In Stock
Price available upon request.
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QJ 1088 N2MA Bearing Product Overview & Core Advantages
The QJ 1088 N2MA is a four-point contact ball bearing designed for applications requiring exceptional load handling in a compact design. This metric single row bearing excels at simultaneously supporting high radial loads and axial loads from both directions. Manufactured to a P6 (ABEC-3) tolerance class, it ensures high precision and reliable performance in demanding industrial environments. Its robust construction and optimized internal geometry make it an ideal solution for heavy-duty machinery where space constraints and high load capacity are critical factors.
QJ 1088 N2MA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| N2 | Indicates specific internal design modifications for optimized load distribution and performance. |
| MA | Signifies that the bearing is lubricated and ready for operation, enhancing initial startup performance. |
QJ 1088 N2MA Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The four-point contact design allows the bearing to handle significant combined radial and axial loads from any direction with high rigidity, making it suitable for applications with complex loading conditions.
- Precision Engineering: Built to a P6 tolerance class, this bearing ensures minimal runout and high rotational accuracy, which is critical for precision machinery.
- Robust Material Construction: The use of Chrome Steel for rings and balls, combined with a durable Brass cage, provides excellent wear resistance and long service life under heavy loads.
- Optimized Geometry: Features like the specific shoulder diameters (outer: 577 mm, inner: 513 mm) and a defined distance from side face to load point (382 mm) contribute to stable operation and precise mounting.
- Ready for Service: The bearing comes pre-lubricated, facilitating immediate installation and initial operation within a broad temperature range of -30° to 110 °C.
QJ 1088 N2MA Bearing Typical Application Areas
- Industrial Gearboxes
- Large-Diameter Slewing Rings for construction and mining equipment
- Heavy-Duty Turntables and indexing tables
- Wind Turbine Pitch & Yaw Systems
- Material Handling Equipment
- Large Precision Machine Tools
