71936 CD/P4ATBTB
71900 Series Super Precision Angular Contact Ball 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
71936 CD/P4ATBTB Bearing Product Overview & Core Advantages
The 71936 CD/P4ATBTB is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set delivers superior performance under combined loads, handling significant radial and axial forces simultaneously. Manufactured to P4A tolerance class with a light preload (Class B), it ensures smooth operation, minimal runout, and extended service life in high-speed, high-precision environments. Its robust construction makes it ideal for applications where high rigidity and positional accuracy are paramount.
71936 CD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71936 | Basic bearing designation, indicating the size series and bore diameter (180 mm). |
| CD | Specifies a 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| P4A | Indicates a high-precision tolerance class with enhanced dimensional and running accuracy requirements. |
| TBT | Denotes the bearing arrangement: Triplex Back-to-Back. This configuration provides maximum rigidity against moment loads. |
71936 CD/P4ATBTB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The triplex back-to-back arrangement of three bearings creates an exceptionally stiff bearing system, capable of withstanding heavy combined loads and significant moment loads. This makes it suitable for applications requiring precise shaft positioning.
Precision & High-Speed Performance: Manufactured to P4A tolerance class standards, this bearing ensures minimal vibration and high running accuracy. The phenolic cage and optimized internal geometry contribute to stable operation at high rotational speeds, with a limiting speed of 11,000 rpm.
Superior Material & Construction: Components are made from high-grade chrome steel, providing excellent wear resistance and fatigue life. The set is pre-lubricated for immediate operation and is designed for a wide temperature range from -30°C to 110°C.
71936 CD/P4ATBTB Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers where precision and rigidity are critical.
- Precision Gearboxes: Industrial transmissions requiring high load capacity and minimal deflection.
- High-Frequency Spindles: Applications in PCB drilling and precision engraving.
- Industrial Pumps & Compressors: For supporting shafts under significant radial and axial loads.
