7000 ACD/P4ADBD
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7000 ACD/P4ADBD
Basic Information
System of measurement
Metric
Weight
0.038 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
26 mm
Outside diameter tolerance
-0.004mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
9
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1462 lbf
Radial static load rating
720 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Heavy / Class D
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7000 ACD/P4ADBD Bearing Product Overview & Core Advantages
The 7000 ACD/P4ADBD is a precision duplex pair of angular contact ball bearings designed for applications demanding exceptional rigidity and accuracy. This back-to-back (DB) arrangement is preloaded to Heavy / Class D specifications, enabling it to withstand significant combined loads (radial and axial) from both directions simultaneously. Manufactured to ABEC 7 / P4A tolerance standards, it delivers high running accuracy and is ideal for high-speed spindles and other high-precision machinery.
7000 ACD/P4ADBD Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 ACD | Basic bearing designation. 7000 series with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class (equivalent to ABEC 7), ensuring minimal dimensional runout and superior rotational accuracy. |
| DB | Specifies the Duplex Back-to-Back mounting arrangement. This configuration provides high moment rigidity and stable axial positioning. |
7000 ACD/P4ADBD Bearing Structural Features & Performance Benefits
- High Rigidity & Moment Load Capacity: The back-to-back duplex pair creates a wide effective spread, significantly increasing the bearing set's resistance to moment loads and providing exceptional system rigidity.
- Superior Load Handling: The 25° contact angle is optimized to carry substantial combined radial and axial loads. The Heavy preload eliminates internal clearance, maximizing stiffness and rotational accuracy under load.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel components ensure smooth operation, contributing to a high limiting speed of 95,000 rpm.
- Precision Engineering: The P4A tolerance class guarantees tight control over bore, outside diameter, and width dimensions, which is critical for applications requiring minimal runout and vibration.
7000 ACD/P4ADBD Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Drives: High-frequency motor spindles and servo drives.
- Robotics: High-accuracy joints and arm linkages.
- Medical Equipment: Dental handpieces and surgical drill spindles.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instrumentation.
