7014 CD/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
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7014 CD/P4ATBTB Bearing Product Overview & Core Advantages
The 7014 CD/P4ATBTB is a precision angular contact ball bearing supplied as a triplex back-to-back (TBT) matched set. Engineered to the exacting P4A tolerance class, this bearing configuration delivers exceptional rotational accuracy and system rigidity. Its primary advantage lies in its ability to handle combined loads—significant radial loads alongside substantial axial loads in both directions—making it an ideal solution for high-precision, high-stiffness applications requiring maximum system stability and minimal runout.
7014 CD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Standard bearing series designation, defining the basic dimensions: 70mm bore, 110mm OD, 60mm width. |
| CD | Indicates a duplex bearing with a specific internal clearance and preload. In this TBT set, it defines the characteristics of the individual pairs. |
| P4A | Denotes an ultra-high precision tolerance class, superior to ABEC 7, ensuring extremely tight dimensional and running accuracy for demanding applications. |
| TBT | Specifies the matched arrangement as Triplex Back-to-Back. Three bearings are matched and mounted in a back-to-back configuration to create an extremely rigid bearing system. |
7014 CD/P4ATBTB Bearing Structural Features & Performance Benefits
Unmatched Rigidity: The triplex back-to-back (TBT) arrangement creates a wide, effective spread of load-bearing points, resulting in an exceptionally high rigid system that effectively resists moment loads and minimizes shaft deflection under heavy cutting forces.
Superior Load Capacity: With a 15° contact angle and a triplex set design, this configuration offers a high radial dynamic load rating of 24,975 lbf and a radial static load rating of 30,825 lbf, enabling it to handle severe combined loads.
High-Speed Capability: The lightweight and robust phenolic cage minimizes centrifugal forces, reduces friction, and ensures stable operation, contributing to the bearing's high limiting speed of 22,000 rpm.
Precision & Stability: Manufactured to P4A tolerances with a light preload (Class B), this set guarantees minimal runout, precise shaft positioning, and consistent performance under thermal variations.
7014 CD/P4ATBTB Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is specifically designed for the most demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers where rigidity and accuracy are paramount.
- Precision Rotary Tables: Indexing and rotary axes on CNC machining centers and coordinate measuring machines (CMM).
- High-Frequency Spindles: Applications requiring very high rotational speeds with minimal thermal growth.
- Industrial Robotics: High-accuracy rotary joints and arm actuators.
