71936 ACD/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 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The 71936 ACD/P4ATBTB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This triplex back-to-back (TBT) matched set offers superior performance in handling combined loads, including significant radial and axial loads in both directions. Manufactured to P4A tolerance class, it ensures extremely tight dimensional control for high-speed, high-rigidity applications. Its preloaded Light / Class B configuration provides immediate precision and stability, making it ideal for high-performance spindles and precision machinery.
71936 ACD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71936 | Basic bearing designation (180mm bore, 250mm OD, 99mm width) |
| ACD | 25° contact angle, optimized for axial load capacity |
| P4A | High precision tolerance class with enhanced running accuracy |
| TBT | Triplex Back-to-Back arrangement for maximum rigidity and moment load capacity |
71936 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The triplex back-to-back configuration creates an extremely rigid bearing system capable of withstanding heavy combined loads and moment loads, making it suitable for applications requiring minimal deflection.
Superior Load Capacity: With a 25° contact angle and triple bearing arrangement, this set delivers exceptional radial dynamic load rating of 77,625 lbf and radial static load rating of 135,000 lbf, ensuring reliable performance under demanding conditions.
High-Speed Capability: The phenolic cage material and optimized internal design enable operation at limiting speeds up to 16,250 rpm, while the P4A precision class ensures smooth running at high velocities.
Precision Engineering: Manufactured from chrome steel with tight dimensional tolerances (bore and OD tolerance: -0.004mm to 0), this bearing set guarantees consistent performance and long service life in precision applications.
71936 ACD/P4ATBTB Bearing Typical Application Areas
The 71936 ACD/P4ATBTB is specifically engineered for high-performance applications including:
- Machine Tool Spindles - High-speed milling, grinding, and turning centers
- Precision Machinery - Industrial robots and automation equipment
- High-Speed Spindles - CNC machining centers and precision boring machines
- Aerospace Equipment - Flight control systems and auxiliary power units
- Medical Equipment - High-speed dental handpieces and surgical tools
