7032 CD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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7032 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7032 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-matched pair, it is engineered to accommodate combined loads (radial and axial) simultaneously. Its P4A tolerance class and extra light preload (Class A) ensure smooth, quiet operation with minimal vibration, making it ideal for high-precision, high-rigidity systems. The open design, when properly lubricated, supports high-speed performance up to 11,000 rpm.
7032 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7032 | Basic bearing series, defining the boundary dimensions: 160mm bore, 240mm OD, 76mm width. |
| CD | Indicates a universal matchable (SU) bearing designed to be mounted in a pair (DB or DF arrangement) with a pre-set internal clearance. |
| P4A | Denotes a high-precision tolerance class with running accuracy better than ABEC 7 (P4) and specific dimensional and geometrical tolerances for spindle applications. |
| DGA | Signifies the contact angle (15°) and extra light preload (Class A), optimizing the bearing for high-speed operation and reduced friction. |
7032 CD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row angular contact design and universal matching provide superior rigidity and enable the bearing set to handle significant combined radial and axial loads from both directions.
- Precision & High-Speed Performance: Manufactured to P4A tolerance class and featuring a phenolic resin cage, this bearing ensures minimal vibration and stable operation at limiting speeds of 11,000 rpm. The 15° contact angle and extra light preload are optimized for reduced heat generation at high speeds.
- Optimized Internal Geometry: With 22 high-grade chrome steel balls of 25.4mm diameter, the bearing is engineered for high dynamic load capacity (71,775 lbf dynamic, 96,750 lbf static) and long service life.
- Universal Matchability (SU): As a pre-selected and supplied pair, these bearings simplify installation and ensure optimal preload and performance in matched sets, eliminating the need for selective mounting.
7032 CD/P4ADGA Bearing Typical Application Areas
The 7032 CD/P4ADGA is specified for high-performance machinery where precision, speed, and rigidity are critical. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, precision grinding equipment.
- High-Frequency Motors: Spindles for electric motors requiring high rotational accuracy.
- Industrial Pumps & Compressors: Applications demanding robust performance under combined loads.
