71913 FE/HCPA9ATBTA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71913 FE/HCPA9ATBTA Bearing Product Overview & Core Advantages
The 71913 FE/HCPA9ATBTA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and rotational accuracy. This matched triplex set in a back-to-back (TBT) arrangement provides superior stability under combined loads (radial and axial). Manufactured to PA9A tolerance class with a ceramic ball and phenolic cage construction, it delivers outstanding high-speed performance and thermal stability, making it ideal for ultra-precision spindles and high-reliability machinery.
71913 FE/HCPA9ATBTA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71913 | Basic bearing series and size designation |
| FE | Optimized internal design for high-speed operation |
| HC | Hybrid ceramic balls (silicon nitride) |
| PA9A | High-precision tolerance class (equivalent to ABEC 9) |
| TB | Triplex back-to-back matched arrangement |
| TA | Extra light preload (Class A) |
71913 FE/HCPA9ATBTA Bearing Structural Features & Performance Benefits
Triplex Back-to-Back Configuration: Three bearings are precision-matched and mounted in a back-to-back arrangement, creating an extremely rigid bearing system that effectively resists moment loads and shaft deflection.
Hybrid Ceramic Construction: Silicon nitride balls provide 60% lower density than steel, reducing centrifugal forces and enabling higher limiting speeds (36,000 rpm). Ceramic's inherent properties also offer better thermal stability and electrical resistance.
Precision Engineering: Manufactured to PA9A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0) ensures consistent high-precision performance and optimal running accuracy.
Phenolic Cage Design: The lightweight phenolic resin cage contributes to smooth operation at high speeds while providing excellent dimensional stability and low friction.
Optimized Contact Angle: The 18° contact angle provides balanced performance for both radial and axial load carrying capacity, with dynamic load rating of 7,898 lbf and static load rating of 8,212 lbf.
71913 FE/HCPA9ATBTA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- Precision Medical Equipment: Dental handpieces, surgical tools, and medical imaging devices
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages
- High-Speed Automation: Robotics, CNC tool changers, and precision indexing systems
