7006 ACDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7006 ACDGC/P4A
Basic Information
System of measurement
Metric
Weight
0.11 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
55 mm
Outside diameter tolerance
-0.004mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3105 lbf
Radial static load rating
1721 lbf
Limiting speed
71.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7006 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7006 ACDGC/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a single bearing from a Universal Matchable (SU) set, it enables simplified mounting and optimal performance in preloaded configurations. Its key advantages include the ability to handle combined loads (radial and axial), superior running accuracy from its P4A tolerance class, and high-speed capability supported by a phenolic cage. This bearing is engineered for high reliability in precision machinery.
7006 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Basic bearing series, 30mm bore, 55mm OD, 13mm width |
| AC | Angular Contact design with a 25° contact angle |
| DGC | Designates specific internal geometry and Moderate preload (Class C) |
| P4A | High-Precision Tolerance Class, exceeding ABEC-7 standards |
7006 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized 25° contact angle and robust construction enable superior resistance to combined loads, providing stable shaft support under both radial and axial forces.
- Precision Performance: Manufactured to P4A tolerance class with extremely tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for high-accuracy applications.
- High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 71,500 rpm. The open design facilitates efficient lubrication management.
- Universal Matching: As part of a Universal Matchable (SU) set, this bearing simplifies the creation of precisely preloaded duplex arrangements (back-to-back, face-to-face, or tandem) without selective mounting.
- Material Quality: Components made from high-grade chrome steel provide excellent wear resistance and durability under demanding operating conditions.
7006 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- High-Speed Motors: Spindle motors for precision equipment and industrial drives
- Precision Instruments: Measuring equipment, optical scanners, and laboratory apparatus
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units
- Robotics: High-accuracy robotic arms and joints requiring minimal backlash
