7006 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7006 CD/P4A Bearing Product Overview & Core Advantages
The 7006 CD/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, this single-row bearing is optimized to support combined loads, handling significant radial loads alongside thrust loads in one direction. Its 15° contact angle provides an excellent balance between radial capacity and axial stiffness. Preloaded and pre-lubricated, the 7006 CD/P4A offers immediate high-performance operation, making it ideal for high-speed spindles and other precision machinery where minimal runout and high rigidity are critical.
7006 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Standard bearing series number indicating a 30mm bore, 55mm OD, and 13mm width. |
| C | Designates a 15° contact angle. |
| D | Indicates the bearing is manufactured with a high preload for maximum rigidity. |
| /P4A | Specifies the tolerance class P4 (ABEC-7), denoting very high dimensional and running accuracy. |
7006 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The combination of a 15° contact angle and a high preload (D) ensures exceptional system stiffness and minimizes axial and radial deflection under load, which is crucial for maintaining precision in machining and positioning applications.
- Optimized for High-Speed Operation: The lightweight phenolic resin cage reduces centrifugal forces, lowers friction, and contributes to the high limiting speed of 48,000 rpm. This makes it a premier choice for high-speed spindle bearings.
- Superior Load Capacity: Manufactured from high-grade chrome steel for both rings and balls, the bearing achieves a high dynamic load rating of 3218 lbf, providing long service life under demanding combined load conditions.
- Ready-to-Install Performance: The bearing is pre-lubricated, ensuring immediate and reliable performance from startup without the need for initial greasing.
7006 CD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Systems: CNC rotary tables, indexing heads, and robotic arms.
- High-Frequency Motors and Spindles: Where low vibration and high rotational accuracy are paramount.
- Medical and Laboratory Equipment: Centrifuges and other precision instruments.
