7216 ACD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7216 ACD/P4ADGA
Basic Information
System of measurement
Metric
Weight
2.92 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.004mm to 0
Width
52 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
17.462 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
29925 lbf
Radial static load rating
32175 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 452.93
/ each
In Stock
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7216 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7216 ACD/P4ADGA is a high-precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to accommodate combined loads (radial and axial loads simultaneously) from both directions, this bearing features a 25° contact angle and Universal Matchable (SU) design, allowing two bearings to be paired for optimal performance in a back-to-back, face-to-face, or tandem arrangement. Its P4A tolerance class ensures ultra-precision operation, making it ideal for high-speed, high-reliability machinery where minimal runout and maximum stiffness are critical.
7216 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Double Row Angular Contact Design with a 25° contact angle. |
| P4A | Ultra-precision tolerance class with enhanced running accuracy requirements. |
| DGA | Universal Matchable (SU) bearing pair, pre-set for optimal performance in various mounting configurations. |
7216 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and 25° contact angle provide superior stiffness, enabling the bearing to handle significant combined radial and axial loads from both directions. With a dynamic load rating of 29,925 lbf and static load rating of 32,175 lbf, it ensures reliable performance under demanding conditions.
- Precision & Speed Performance: Manufactured to P4A tolerance standards with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing guarantees minimal vibration and high rotational accuracy. The phenolic cage and optimized internal geometry contribute to a high limiting speed of 28,000 rpm.
- Universal Matching Capability: As a Universal Matchable (SU) bearing, two 7216 ACD/P4ADGA units can be precisely matched to form a pre-loaded set, simplifying installation and ensuring consistent, predictable performance in complex spindle arrangements.
- Material & Construction: Manufactured from high-grade chrome steel for rings and balls, ensuring durability and long service life. The open design allows for custom lubrication schemes to suit specific application needs.
7216 ACD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Gearboxes: Industrial gearboxes and transmission systems where accurate shaft positioning is critical.
- High-Speed Motors & Spindles: Electric motors, CNC spindles, and other high-RPM machinery.
- Medical & Laboratory Equipment: Centrifuges, scanners, and other devices demanding quiet, precise, and reliable rotation.
- Robotics & Automation: Precision joints and rotary axes in industrial robots and automated systems.
