7007 ACD/P4ADBG49
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 ACD/P4ADBG49
Basic Information
System of measurement
Metric
Weight
0.31 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5445 lbf
Radial static load rating
4050 lbf
Limiting speed
56 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
Available
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.
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7007 ACD/P4ADBG49 Bearing Product Overview & Core Advantages
The 7007 ACD/P4ADBG49 is a precision angular contact ball bearing supplied as a matched duplex pair in a Back-to-Back (DB) arrangement with a P4A tolerance class. This configuration is engineered to deliver exceptional high rigidity and stability under combined loads, including significant radial and bidirectional axial loads. The phenolic cage and optimized contact angle of 25° contribute to superior high-speed performance, making it an ideal solution for demanding, high-precision applications requiring maximum operational reliability and accuracy.
7007 ACD/P4ADBG49 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design, 25° contact angle. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards for running accuracy. |
| DB | Duplex set in Back-to-Back arrangement. Provides high moment stiffness. |
| G49 | Specifies the preload level applied to the matched set for optimal rigidity and performance. |
7007 ACD/P4ADBG49 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 positional accuracy.
- Superior Load Capacity: The 25° contact angle and duplex design enable the bearing to handle significant combined radial and axial loads from both directions simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel balls and raceways minimize friction and heat generation, allowing for a high limiting speed of 56,000 rpm.
- Pre-Configured Precision: Supplied as a factory-matched set with preload (G49), this eliminates complex on-site adjustment, guarantees immediate optimal performance, and ensures consistent P4A tolerance class accuracy.
7007 ACD/P4ADBG49 Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery requiring extreme precision, rigidity, and speed. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding, and turning centers)
- Precision Gearboxes and Transmission Systems
- High-Frequency Motors and Spindle Drives
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Automation Equipment
