7005 CD/P4ADBG20
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7005 CD/P4ADBG20
Basic Information
System of measurement
Metric
Weight
0.16 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3510 lbf
Radial static load rating
2340 lbf
Limiting speed
103 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
Price:
$ 125.66
/ each
In Stock
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7005 CD/P4ADBG20 Bearing Product Overview & Core Advantages
The 7005 CD/P4ADBG20 is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. This duplex back-to-back (DB) matched set is preloaded and classified under the stringent P4A tolerance class, ensuring superior running accuracy and minimal rotational vibration. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high stability, making it ideal for high-precision spindles and other critical machinery components where high rigidity and precise shaft positioning are paramount.
7005 CD/P4ADBG20 Bearing Model Code Explained, Specifications & Naming Convention
The model number 7005 CD/P4ADBG20 is decoded as follows:
- 7005: Basic series designation, indicating a 25mm bore and 47mm outside diameter.
- C: Denotes a 15° contact angle, optimized for high-speed operation and moderate axial loads.
- D: Indicates the bearing is part of a duplex pair.
- P4A: Specifies the tolerance class, representing very high precision for both dimensional and running accuracy.
- DB: Defines the matched arrangement as Back-to-Back. This configuration provides high moment rigidity and excellent resistance to overturning moments.
- G20: Specifies the preload level within the matched set.
7005 CD/P4ADBG20 Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively counteracts moment loads and shaft deflection, ensuring stable operation under combined loads.
- Precision Performance: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing offers extremely low runout and smooth operation, which is critical for high-speed applications.
- Optimized for High Speeds: The combination of the 15° contact angle, lightweight phenolic cage, and precision grinding allows for a high limiting speed of 103,000 rpm, making it suitable for very demanding spindle applications.
- Superior Load Capacity: With a dynamic load rating of 3510 lbf and a static load rating of 2340 lbf, it is engineered to handle significant radial and axial forces in precision machinery.
7005 CD/P4ADBG20 Bearing Typical Application Areas
This high-precision bearing is typically specified in demanding applications such as:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Spindles
- Precision Instrumentation
- Robotic Arm Drives
- High-Speed Pumps and Compressors
