7034 CDGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 7034 CDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features extra light preload (Class A) and P4A tolerance class for superior running accuracy. Its universal matching (SU) capability allows for flexible mounting arrangements in pairs, making it ideal for high-speed spindle applications where rigidity and precision are paramount.
7034 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7034 | Basic bearing series with 170mm bore, 260mm OD, 42mm width |
| CDGA | Contact angle 15°, Extra light preload (Class A), Universal matching design |
| P4A | High precision tolerance class (superior to ABEC 7) |
Structural Features and Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
High-Speed Capability: The phenolic cage and optimized 15° contact angle enable limiting speeds up to 11,000 rpm, making it suitable for high-speed applications.
Superior Load Capacity: With radial dynamic load rating of 47,700 lbf and radial static load rating of 55,125 lbf, this bearing delivers reliable performance under significant combined loads.
Thermal Stability: The phenolic cage material and chrome steel construction maintain dimensional stability across the operating temperature range of -30°C to 110°C.
Optimized Internal Geometry: Features 22 precision balls with 26.988mm diameter, providing smooth operation and extended service life.
7034 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling machine spindles
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Motors: Spindle motors, high-frequency motors, and precision drive systems
- Aerospace Components: Guidance systems, aircraft instrumentation, and satellite mechanisms
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging devices
