71805 CD/P4TFTM
71800 Series Super Precision Angular Contact Ball Bearings
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71805 CD/P4TFTM Bearing Product Overview & Core Advantages
The 71805 CD/P4TFTM is a precision angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. This matched triplex set in a Face-to-Face (TFT) arrangement provides superior stability and is preloaded for immediate, precise operation. Engineered to a P4 tolerance class, it is ideal for high-speed spindles and other machinery where minimal runout and high system rigidity are critical. Its design is optimized to handle combined loads efficiently.
71805 CD/P4TFTM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71805 | Basic bearing designation (25mm bore, 37mm OD, 21mm width). |
| CD | Specifies a universal duplex bearing with a specific preload and a 15° contact angle. |
| P4 | Indicates a high precision tolerance class for superior running accuracy. |
| TFT | Denotes the matched arrangement as Triplex Face-to-Face. |
| M | Signifies that the bearing is lubricated from the factory. |
71805 CD/P4TFTM Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The triplex face-to-face arrangement creates an extremely rigid bearing system, effectively resisting complex moment loads and ensuring precise shaft positioning. The bearings are supplied preloaded, eliminating internal clearance for immediate high-performance operation.
Optimized for High-Speed Operation: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to the high limiting speed of 103,000 rpm. The standard factory lubrication ensures optimal performance from the start.
Superior Load Capacity: With a 15° contact angle, this bearing is engineered to handle significant combined radial and axial loads simultaneously. The chrome steel construction of rings and balls provides high dynamic (2034 lbf) and static (2171 lbf) load ratings.
Precision Engineering: Manufactured to P4 tolerance standards with tight dimensional controls on bore, outside diameter, and width, this bearing guarantees exceptional running accuracy and low vibration levels.
71805 CD/P4TFTM Bearing Typical Application Areas
- High-Frequency Machine Tool Spindles
- Precision Grinding Machine Mandrels
- High-Speed Dental and Medical Handpieces
- Advanced Robotic Drives and Servo Motors
- Aerospace Instrumentation and Control Systems
