71900 CE/P4ADBG2
71900 Series Super Precision Angular Contact Ball Bearings
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71900 CE/P4ADBG2 Bearing Product Overview & Core Advantages
The 71900 CE/P4ADBG2 is a precision angular contact ball bearing designed for high-speed applications requiring exceptional rigidity and accuracy. This duplex back-to-back (DB) arrangement bearing set delivers superior performance in handling combined loads (radial and axial) simultaneously. Manufactured to P4A tolerance class, it ensures minimal runout and vibration, making it ideal for high-precision machinery. The phenolic cage and optimized 15° contact angle contribute to its outstanding high-speed capabilities and operational stability.
71900 CE/P4ADBG2 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71900 | Basic bearing series designation |
| CE | Contact angle of 15° |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DB | Duplex arrangement in back-to-back configuration |
| G2 | Preload level specification |
71900 CE/P4ADBG2 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back arrangement creates a rigid bearing system that effectively handles combined radial and axial loads from both directions. This configuration provides excellent moment load resistance and operational stability.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional controls (bore diameter tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for high-precision applications.
High-Speed Capability: The phenolic cage material and optimized 15° contact angle enable superior performance at high rotational speeds, with a limiting speed of 185,000 rpm.
Enhanced Durability: Constructed from chrome steel for both rings and balls, the bearing offers excellent wear resistance and long service life under demanding operating conditions.
71900 CE/P4ADBG2 Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and precision grinding machines
- Precision instruments and measuring equipment
- Medical equipment spindles and rotary components
- Aerospace components requiring high-speed precision bearings
- Robotic arm joints and precision automation systems
