7226 CDGA/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7226 CDGA/P4A Bearing Product Overview & Core Advantages
The 7226 CDGA/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to accommodate primarily radial loads and substantial axial loads in one direction, its 15° contact angle and P4A super precision tolerance class make it ideal for demanding machine tool spindles and other high-performance equipment. The bearing features a phenolic cage and is pre-lubricated, offering reliable operation at high speeds up to 11,000 rpm.
7226 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 7226: Basic bearing series, with 130mm bore, 230mm OD, 40mm width
- C: 15° nominal contact angle
- D: Optimized internal geometry for higher speed and reduced heat generation
- GA: Matched set designation (two bearings supplied as a set)
- P4A: Superior precision tolerance class exceeding ABEC 7 standards
7226 CDGA/P4A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The optimized internal geometry and 15° contact angle provide excellent resistance to combined (radial and axial) loads, ensuring stable performance under demanding operating conditions.
Precision Performance: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing delivers exceptional running accuracy and minimal vibration for ultra-precise applications.
High-Speed Capability: The lightweight phenolic cage and optimized internal design enable reliable operation at limiting speeds of 11,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching: Designed as Universal Matchable (SU) bearings supplied in matched sets of 2, these bearings can be arranged in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements for preload and stiffness.
7226 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Machining Centers: Applications requiring superior rotational accuracy and rigidity
- Precision Instrumentation: Medical equipment, measuring devices, and optical systems
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- High-Performance Pumps & Compressors: Where precise shaft positioning and high-speed operation are critical
