7007 CDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 CDGC/P4A
Basic Information
System of measurement
Metric
Weight
0.15 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
14 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3510 lbf
Radial static load rating
2138 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7007 CDGC/P4A Bearing Product Overview & Core Advantages
The 7007 CDGC/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Positioned in the super-precision P4A tolerance class, it delivers superior running accuracy and dimensional stability. A key feature is its Universal Matchable (SU) designation, allowing it to be supplied in a pre-matched set of three bearings for simplified installation and optimal performance in duplex arrangements. Its moderate preload (Class C) ensures high system stiffness right from the start, making it ideal for applications demanding high rigidity and precise axial positioning under combined loads.
7007 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series, indicating a 35mm bore, 62mm OD, and 14mm width. |
| C | Specifies a 15° contact angle, optimized for carrying combined (radial and axial) loads. |
| DG | Indicates the bearing is Universal Matchable (SU) and can be mounted in any duplex configuration (DB, DF, DT). |
| C | Denotes a Moderate Preload (Class C), providing high initial rigidity. |
| P4A | The tolerance class, signifying super-precision levels for both dimensional and running accuracy. |
7007 CDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 15° contact angle and moderate preload are engineered to provide high resistance to deflection, ensuring excellent system stability under combined radial and axial loads.
- Super-Precision Performance: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for achieving high positional accuracy and superior surface finishes in machined parts.
- Optimized High-Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 56,000 rpm. The open design and pre-lubrication facilitate effective lubrication management at high speeds.
- Universal Matching Simplification: The Universal Matchable (SU) feature allows for the creation of pre-engineered, pre-loaded duplex pairs or triple sets from a single bearing type, drastically simplifying procurement, inventory, and assembly for complex spindle designs.
7007 CDGC/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and high-speed milling heads.
- Precision Rotary Systems: In industrial robots, rotary tables, and indexing heads.
- High-Speed Drives: For applications in electric motors, pumps, and compressors operating at elevated speeds.
