7202 ACD/P4ADGD
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7202 ACD/P4ADGD Bearing Product Overview & Core Advantages
The 7202 ACD/P4ADGD is a precision angular contact ball bearing designed for applications demanding exceptional rigidity and accuracy. Engineered to accommodate combined loads (simultaneous radial and axial forces), this bearing features a 25° contact angle and a Heavy preload (Class D), making it ideal for high-stiffness, high-precision positioning systems. Manufactured to P4A tolerance class, it ensures minimal runout and superior rotational accuracy. Its Universal Matchable (SU) design allows for flexible pairing in duplex sets, providing optimized performance in complex arrangements.
7202 ACD/P4ADGD Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| ACD | Angular Contact, 25° Contact Angle, Duplex Configuration | Optimized for combined radial and axial loads |
| P4A | High Precision Tolerance Class (ABEC 7 Equivalent) | Superior running accuracy for precision applications |
| DGD | Heavy Preload (Class D), Universal Matchable | Enhanced rigidity and minimal deflection under load |
7202 ACD/P4ADGD Bearing Structural Features & Performance Benefits
High Rigidity Design: The duplex configuration with Heavy preload provides exceptional stiffness, minimizing axial and radial deflection under operational loads. This makes the bearing particularly suitable for applications requiring precise positioning and minimal deformation.
Superior Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing efficiently handles combined loads. The dynamic radial load rating of 2632 lbf and static rating of 1440 lbf ensure reliable performance in demanding conditions.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), this bearing delivers exceptional running accuracy. The phenolic cage contributes to smooth operation at high speeds, supporting a limiting speed of 95,000 rpm.
Universal Matching Capability: The SU designation indicates universal matchability, allowing bearings to be paired in various preload configurations (back-to-back, face-to-face, or tandem) without selective assembly, simplifying inventory and installation.
7202 ACD/P4ADGD Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles requiring exceptional rigidity and accuracy
- Precision Robotics: Articulated arms and positioning systems where minimal deflection and high repeatability are critical
- Medical Equipment: High-speed dental handpieces and surgical tool drives demanding precision and reliability
- Aerospace Systems: Guidance systems and flight control mechanisms requiring high precision and load capacity
- Industrial Pumps & Compressors: High-speed rotating shafts where combined loads and precision are essential
