KG400AR0
1" 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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KG400AR0 Bearing Product Overview & Core Advantages
The KG400AR0 is a high-performance thin-section angular contact ball bearing designed for applications requiring exceptional precision and high rigidity. This single-row bearing excels at handling combined loads, efficiently supporting both radial and axial forces. Manufactured to ABEC-1 precision standards with a generous 30° contact angle, it delivers reliable performance in compact spaces where standard bearings cannot fit. Its inch-dimension design (40" bore) makes it ideal for specialized industrial equipment demanding high load capacity within minimal cross-sections.
KG400AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KG400 | Basic bearing designation with 40" bore diameter |
| A | Angular contact design with 30° contact angle |
| R0 | Open construction (no seals) |
KG400AR0 Bearing Structural Features & Performance Benefits
Optimized Thin-Section Design: With only 1" width and minimal cross-section (42" OD × 40" bore), this bearing provides maximum space efficiency while maintaining high rigidity through precision engineering.
Superior Load Capacity: The 30° contact angle and single-row construction enable excellent combined load handling, with impressive ratings of 19,153 lbf dynamic and 77,720 lbf static radial capacity.
Precision Engineering: Manufactured to ABEC-1 tolerance standards with tight dimensional controls (bore/OD tolerance: -0.0020"–0"), ensuring consistent performance in precision applications.
Premium Material Construction: Chrome steel rings and balls combined with brass cage provide durability, corrosion resistance, and stable operation across the -30°C to 110°C temperature range.
KG400AR0 Bearing Typical Application Areas
- Aerospace systems and aircraft components requiring lightweight, high-precision bearings
- Robotics and automation equipment where space constraints demand thin-section solutions
- Medical imaging devices and precision medical equipment
- Semiconductor manufacturing equipment requiring high precision and reliability
- Military and defense systems with stringent performance requirements
- Industrial machinery with limited radial space but high load demands
