7004 CD/P4ADFB
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7004 CD/P4ADFB
Basic Information
System of measurement
Metric
Weight
0.14 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
42 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
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3150 lbf
Radial static load rating
1912 lbf
Limiting speed
121 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Face-to-Face (DF)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
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
7004 CD/P4ADFB Bearing Product Overview & Core Advantages
The 7004 CD/P4ADFB is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This duplex face-to-face (DF) arrangement provides high system stability and is optimized to handle combined radial and axial loads. Manufactured to P4A tolerance class, it offers superior running accuracy, making it ideal for high-speed spindles and other precision machinery where minimal runout and high reliability are critical.
7004 CD/P4ADFB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a duplex bearing pair with a specific internal clearance and preload. |
| P4A | Denotes a high-precision tolerance class with enhanced dimensional and running accuracy. |
| DF | Specifies the Face-to-Face (DF) matched arrangement, which increases system rigidity and accommodates moment loads. |
| B | Signifies a Light preload for reduced noise and vibration at high speeds. |
7004 CD/P4ADFB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex face-to-face configuration creates a highly rigid bearing system capable of supporting significant combined loads and moment loads, ensuring precise shaft positioning.
- Precision Performance: Manufactured to P4A tolerance standards with a 15° contact angle, this bearing delivers exceptional running accuracy and low temperature rise, which is critical for high-speed applications.
- Optimized High-Speed Operation: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 121,000 rpm. The standard lubrication ensures reliable operation across the entire speed range.
- Superior Material Construction: Made from chrome steel for both rings and balls, the bearing provides excellent wear resistance and long service life under demanding conditions.
7004 CD/P4ADFB Bearing Typical Application Areas
- Machine Tool Spindles for grinding, milling, and turning centers
- High-Speed Machining Centers and precision spindles
- Precision Instrumentation and measuring equipment
- Robotic Arm Joints and precision automation systems
- Medical Equipment such as dental handpieces and surgical tools
