QJ 214 N2PHAS
Four-Point Contact Bearings Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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QJ 214 N2PHAS Bearing Product Overview & Core Advantages
The QJ 214 N2PHAS is a Four Point Contact Ball Bearing engineered for high precision and compact design. This single-row metric bearing is distinguished by its ability to simultaneously support substantial combined loads, including radial loads and bidirectional axial loads, making it an ideal solution for applications demanding high rigidity and operational accuracy. Manufactured with a PEEK cage and pre-lubricated, it offers reliable performance within a broad temperature range, ensuring long-term service life in demanding environments.
QJ 214 N2PHAS Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| QJ 214 | Standard designation for a four-point contact ball bearing with a 70mm bore diameter. |
| N2 | Indicates specific internal design modifications for optimized load distribution and performance. |
| P | Signifies a PEEK (Polyetheretherketone) cage, contributing to low weight, high strength, and excellent performance at high speeds. |
| H | Indicates a specific internal clearance or preload setting. |
| A | Denotes a 30° contact angle, which is optimized for supporting high axial loads. |
| S | Specifies that the bearing rings are made of chrome steel. |
QJ 214 N2PHAS Bearing Structural Features & Performance Benefits
Four-Point Contact Design: The unique raceway geometry allows the bearing to handle combined radial and axial loads from both directions with a single bearing row, resulting in a compact and space-saving solution.
High Rigidity and Load Capacity: The optimized bearing dimensions and 30° contact angle provide high rigidity and excellent load-carrying capacity, with a dynamic load rating of 27,000 lbf and a static load rating of 27,450 lbf.
High-Speed Performance: The lightweight and robust PEEK cage ensures stable operation and low centrifugal forces, enabling a high limiting speed of 9,000 rpm.
Precision and Stability: Manufactured to a P6 (ABEC-3) tolerance class, this bearing guarantees high running accuracy and minimal vibration, which is critical for precision applications.
Pre-Lubricated and Ready-to-Use: The bearing is pre-lubricated, facilitating easy installation and providing immediate protection upon startup.
QJ 214 N2PHAS Bearing Typical Application Areas
The QJ 214 N2PHAS is ideally suited for applications requiring high precision, compact design, and the ability to handle complex loads. Key industries and equipment include:
- Robotics and Automation: Used in robot arm joints and rotary actuators.
- Machine Tools: Applied in rotary tables, indexing heads, and spindle supports.
- Aerospace and Defense: Suitable for radar antennas, guidance systems, and flight control mechanisms.
- Medical Equipment: Found in CT scanners, MRI machines, and surgical robots.
- Industrial Machinery: Used in precision gearboxes, pumps, and compressors.
