7004 CE/DTVQ126
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7004 CE/DTVQ126
Basic Information
System of measurement
Metric
Weight
0.13 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
2722 lbf
Radial static load rating
1508 lbf
Limiting speed
63 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
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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7004 CE/DTVQ126 Bearing Product Overview & Core Advantages
The 7004 CE/DTVQ126 is a precision angular contact ball bearing supplied as a matched duplex tandem (DT) pair. This configuration is engineered to deliver exceptional axial rigidity and is preloaded for optimal performance in high-precision applications. Its primary advantage lies in its ability to handle significant combined loads (radial and axial) simultaneously while maintaining high running accuracy, making it ideal for demanding, high-speed machinery.
7004 CE/DTVQ126 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7004 | Standard bearing series designation with 20mm bore, 42mm OD, and 24mm width. |
| C | Specifies a 15° contact angle, optimized for high-speed operation and axial load capacity. |
| E | Indicates a high-capacity internal design with optimized ball size and quantity. |
| DT | Denotes a Duplex Tandem arrangement. Two bearings are mounted together to double the axial load capacity in one direction. |
| VQ126 | Signifies a specific preload class applied to the matched set, ensuring consistent rigidity and rotational accuracy. |
7004 CE/DTVQ126 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem (DT) arrangement and preload create a system with very high axial rigidity, capable of handling heavy combined loads. This design effectively doubles the axial load capacity compared to a single bearing.
- High-Speed Performance: Featuring a lightweight phenolic resin cage, this bearing is designed for high-speed applications, reducing centrifugal forces and allowing for a limiting speed of 63,000 rpm.
- Precision Operation: Manufactured to P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, resulting in smooth, low-vibration rotation essential for precision machinery.
- Optimized Internal Geometry: The 15° contact angle and high-capacity "E" design, utilizing 12 balls of 6.35mm diameter, provide an excellent balance between radial and axial load ratings.
7004 CE/DTVQ126 Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications requiring superior precision and rigidity, such as:
- Machine Tool Spindles (especially for milling and grinding)
- High-Frequency Spindle Motors
- Precision Gearboxes
- Axial Compressors and Pumps
- Robotic Drives and Precision Rotary Axes
