7204 CD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7204 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.1 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.006mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
11
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2678 lbf
Radial static load rating
1316 lbf
Limiting speed
53 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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:
$ 55.5
/ each
In Stock
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7204 CD/P4A Bearing Product Overview & Core Advantages
The 7204 CD/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it delivers superior performance in managing combined loads, particularly axial loads in one direction. Its compact design, featuring a 20 mm bore and 47 mm outside diameter, makes it ideal for space-constrained, high-speed spindles and precision machinery where reliability is paramount.
7204 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7204 | Basic series code for a single row angular contact ball bearing with a 20mm bore and 47mm OD. |
| C | Designates a 15° contact angle, optimized for high-speed operation. |
| D | Indicates the bearing is part of a matched pair (duplex set) for preload applications. |
| P4A | Specifies the tolerance class P4 (ABEC-7) with specific dimensional and running accuracy requirements. |
7204 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and P4 precision ensure minimal deflection and superior running accuracy, which is critical for machine tool spindles.
- Optimized for High Speeds: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 53,000 rpm.
- Superior Load Capacity: The optimized internal geometry and high-grade chrome steel construction provide a high dynamic load rating for demanding applications.
- Preload Ready: Designed as part of a matched arrangement (D suffix), this bearing can be preloaded in pairs to eliminate axial play and achieve maximum system stiffness.
7204 CD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes
- High-Frequency Motors
- Medical and Dental Equipment Spindles
- Aerospace Control Systems
