KF065BJ0Q
3/4" Constant Section Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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KF065BJ0Q Bearing Product Overview & Core Advantages
The KF065BJ0Q is a high-performance thin-section angular contact ball bearing designed for applications requiring exceptional precision and space optimization. Manufactured to ABEC-1 precision standards, this single-row bearing excels at handling combined radial and axial loads simultaneously, thanks to its 30° contact angle. Its large 6.5" bore and compact 0.75" cross-section make it ideal for high-rigidity support in lightweight, compact machinery. The open design, combined with pre-lubrication, ensures reliable operation across a broad temperature range.
KF065BJ0Q Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KF | Kaydon® Reali-Slim® thin-section bearing series identifier |
| 065 | Bore diameter code for 6.5 inches |
| B | Cross-section code for 0.75" width (B-series) |
| J | Angular contact design with 30° contact angle |
| 0Q | Open (unsealed) construction with standard internal clearance |
KF065BJ0Q Bearing Structural Features & Performance Benefits
This bearing's performance stems from its optimized thin-section design and material selection:
- High Rigidity & Load Capacity: The single-row angular contact design with a 30° contact angle provides excellent resistance to combined loads, supporting substantial axial static load capacity of 11,220 lbf and radial dynamic load rating of 4,734 lbf.
- Precision Engineering: Manufactured from chrome steel for both rings and balls, and featuring a nylon cage, the bearing ensures smooth operation and minimal vibration, critical for precision applications.
- Space & Weight Savings: The Reali-Slim® thin-section construction (0.75" width) allows for significant weight reduction (2.94 lbs) and compact bearing dimensions without sacrificing performance.
- Optimized Internal Geometry: Tight radial internal clearance (0.0000 – 0.0005") and precise shoulder diameters ensure accurate shaft positioning and system stability.
KF065BJ0Q Bearing Typical Application Areas
The KF065BJ0Q is engineered for high-performance systems where space, weight, and precision are critical. Key industries and equipment include:
- Robotics & Automation: Rotary joints, robotic arms, and precision gearing systems.
- Aerospace & Defense: Radar platforms, gimbal systems, and satellite communication devices.
- Medical Equipment: CT scanners, MRI machines, and surgical robot joints.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
- Industrial Machinery:
- High-speed machining centers
- Precision indexing tables
- Optical positioning systems
