QJ 1060 MA
Four-Point Contact Bearings Ball Bearings
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Part No.
Part No.
QJ 1060 MA
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
47 kg
Tolerance class
P6 (ABEC-3)
Seal type
Open
For load direction
Four Point Contact
Main Dimensions
Bore diameter
300 mm
Bore diameter tolerance
-0.025mm to 0
Outside diameter
460 mm
Outside diameter tolerance
-0.033mm to 0
Width
74 mm
Width tolerance
-0.05mm to 0
Chamfer dimension
4 mm
Distance from side face to load point
266 mm
Inner Ring Dimensions
Inner ring large-side shoulder diameter
356 mm
Outer Ring Dimensions
Shoulder diameter outer ring
404 mm
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
157950 lbf
Radial static load rating
321750 lbf
Limiting speed
2.2 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
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In Stock
Price available upon request.
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QJ 1060 MA Bearing Product Overview & Core Advantages
The QJ 1060 MA is a metric four-point contact ball bearing engineered for applications requiring exceptional axial load capacity in both directions. Its single-row design with a split inner ring provides a compact and rigid solution, capable of handling combined radial and axial loads simultaneously. Manufactured to P6 (ABEC-3) tolerance, this bearing is designed for high-precision and high-reliability operations in demanding industrial environments.
QJ 1060 MA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| QJ | Denotes a four-point contact ball bearing design. |
| 1060 | Specifies the bearing size series and bore diameter (300mm). |
| MA | Indicates the bearing is pre-lubricated from the factory. |
QJ 1060 MA Bearing Structural Features & Performance Benefits
- Four-Point Contact Design: The optimized raceway geometry enables the bearing to support substantial axial loads from both directions with a single row of balls, resulting in a compact bearing cross-section.
- High Load Capacity: With a dynamic load rating of 157,950 lbf and a static load rating of 321,750 lbf, it is built to withstand severe combined loads.
- Precision & Rigidity: The P6 tolerance class ensures precise running accuracy, while the brass cage provides dimensional stability and reliable performance at the limiting speed of 2,200 rpm.
- Ready-to-Install: The MA suffix signifies factory-applied lubrication, simplifying installation and providing immediate operational readiness.
QJ 1060 MA Bearing Typical Application Areas
This bearing is ideally suited for heavy-duty applications requiring robust axial and radial support, including:
- Industrial Turntables and Slewing Rings
- Wind Turbine Pitch and Yaw Systems
- Construction Machinery (e.g., Excavators, Cranes)
- Robotics and Precision Positioning Equipment
