7001 ACDGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7001 ACDGB/P4A Bearing Product Overview & Core Advantages
The 7001 ACDGB/P4A is a single-row angular contact ball bearing engineered for high-precision applications demanding exceptional rotational accuracy and rigidity. Operating under a Light Preload (Class B), this bearing is optimized to handle significant combined loads—simultaneous radial and axial forces—with high reliability. Its P4A tolerance class ensures superior dimensional and running accuracy, making it ideal for high-speed spindles and precision machinery where minimal runout and vibration are critical. The universal matching designation (SU) allows for flexible mounting configurations in complex arrangements.
7001 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| 7001 | Basic designation: Metric series, 12mm bore, 28mm OD |
| AC | Angular Contact design with 25° contact angle |
| DGB | Universal Matchable bearing (SU designation) for paired mounting |
| P4A | High-precision tolerance class exceeding ABEC 7 standards |
7001 ACDGB/P4A Bearing Structural Features & Performance Benefits
High Precision & Rigidity: The 25° contact angle and light preload configuration provide optimal stiffness for applications requiring minimal deflection under load. The phenolic cage ensures smooth operation at high speeds while reducing weight and friction.
Superior Load Capacity: Engineered to handle combined radial and axial loads efficiently, with dynamic load rating of 981 lbf and static load rating of 412 lbf. The optimized raceway geometry distributes stress evenly for extended service life.
High-Speed Performance: With a limiting speed of 110,000 rpm, the bearing features precision-ground chrome steel components and phenolic cage that minimize centrifugal forces and maintain stability at extreme rotational velocities.
Precision Manufacturing: Manufactured to P4A tolerance class with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring consistent performance in the most demanding precision applications.
7001 ACDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- Precision Instruments: Measuring equipment, optical instruments, and laboratory devices
- High-Speed Motors: Servo motors, spindle motors, and high-frequency drive systems
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Components: Guidance systems, avionics, and precision actuators
