71915 CD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71915 CD/P4ADGA Bearing Product Overview & Core Advantages
The 71915 CD/P4ADGA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing offers superior dimensional and running accuracy. Its extra light preload (Class A) minimizes deflection under light loads, making it ideal for high-speed spindles. The bearing is universally matchable (SU), allowing for flexible mounting in duplex pairs (DB, DF, DT) to handle combined loads efficiently. It comes pre-lubricated for immediate operation.
71915 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71915 | Basic bearing designation (75mm bore, 105mm OD, 32mm width) |
| CD | 15° contact angle design, optimized for high-speed operation |
| P4A | Super precision tolerance class (equivalent to ABEC 7) |
| DGA | Universal matchable bearing (SU designation) |
71915 CD/P4ADGA Bearing Structural Features & Performance Benefits
High-Speed Capability: The 15° contact angle and phenolic resin cage work in synergy to enable stable operation at high rotational speeds, with a limiting speed of 36,000 rpm. The lightweight phenolic cage reduces centrifugal forces and provides excellent guidance.
Precision Performance: Manufactured to P4A tolerance standards, this bearing ensures minimal runout and vibration, critical for applications requiring high positional accuracy and smooth operation.
Universal Matching Design: As a universally matchable (SU) bearing, it can be paired in any duplex configuration (face-to-face, back-to-back, or tandem) without selective matching, simplifying installation and inventory management while providing optimal rigidity and load distribution.
Optimized Load Capacity: With a dynamic load rating of 13,162 lbf and static load rating of 16,875 lbf, it reliably handles combined radial and axial loads in precision applications.
71915 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers
- Precision Rotary Systems: CNC machining centers and jig borers
- High-Speed Motors: Spindle motors and high-frequency applications
- Medical Equipment: Dental handpieces and surgical tools
- Aerospace Systems: Gyroscopes and navigation instruments
