7016 CE/P4ADBA
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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7016 CE/P4ADBA Bearing Product Overview & Core Advantages
The 7016 CE/P4ADBA is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) matched set features an Extra Light (A) preload and is manufactured to P4A tolerance class, ensuring superior running precision and minimal vibration. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high stability, making it ideal for high-speed spindles and precision machinery where high rigidity and positional accuracy are paramount.
7016 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7016 | Basic bearing series and size designation (80 mm bore, 125 mm OD, 44 mm width). |
| C | Designates a 15° contact angle, optimized for high-speed performance and axial load capacity. |
| E | Indicates optimized internal design for enhanced performance and load rating. |
| P4A | Specifies the tolerance class for high precision, with dimensional and running accuracy exceeding ABEC 7 (P4) and including specific running accuracy requirements. |
| DB | Denotes the bearings are supplied as a Duplex Back-to-Back matched set, providing high moment rigidity. |
| A | Specifies the preload level as Extra Light (Class A), minimizing friction and heat generation for high-speed operation. |
7016 CE/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and shaft deflection, ensuring exceptional operational stability.
Superior Load Capacity: With a 15° contact angle and optimized internal geometry, this bearing efficiently handles significant combined radial and axial loads.
High-Speed Capability: The combination of the phenolic resin cage (lightweight and suitable for high speeds), extra light preload, and precision P4A manufacturing enables a high limiting speed of 28,000 rpm.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing guarantees high running accuracy and low noise/vibration levels.
Material Quality: Components are made from high-grade chrome steel, providing excellent durability, wear resistance, and long service life under demanding conditions.
7016 CE/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring precision and rigidity.
- Precision Spindles: Applications in PCB drilling, semiconductor manufacturing, and other high-accuracy machining.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Medical Equipment: High-speed centrifuges and dental handpieces.
- Test and Measurement Equipment: Instrumentation requiring ultra-precise rotational accuracy.
