7216 ACD/P4A
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/P4A
Basic Information
System of measurement
Metric
Weight
1.46 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.009mm to 0
Width
26 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° to 110 °C
Radial dynamic load rating
18428 lbf
Radial static load rating
16200 lbf
Limiting speed
14 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
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:
$ 226.47
/ each
In Stock
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7216 ACD/P4A Bearing Product Overview & Core Advantages
The 7216 ACD/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to P4 (ABEC-7) tolerance class, this single-row bearing is optimized to handle combined loads, accommodating significant axial loads in one direction alongside radial loads. Its 25° contact angle provides a high thrust capacity, making it an ideal choice for high-speed and high-precision spindles and machinery where uncompromising performance is critical.
7216 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACD | Indicates a 25° contact angle and that the bearing is designed for universal mounting (can be paired in various arrangements). |
| P4A | Denotes the tolerance class P4 (ABEC-7), signifying very high running accuracy and dimensional precision. The 'A' may specify a narrower tolerance on width and/or runout. |
7216 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The optimized 25° contact angle and robust construction using chrome steel rings and balls enable the bearing to support substantial combined loads, providing stable and rigid support for spindles.
- High-Speed Performance: The lightweight and durable phenolic resin cage ensures smooth operation and guides the balls effectively at the limiting speed of 14,000 rpm, reducing friction and heat generation.
- Precision Engineering: Manufactured to P4 (ABEC-7) precision class with tight dimensional tolerances on the bore, outside diameter, and width, ensuring minimal runout and superior rotational accuracy.
- Preload & Matched Sets: The bearing is supplied with a preload and is available for matched arrangement, allowing for precise axial stiffness control when used in pairs (back-to-back or face-to-face) for maximum system rigidity.
7216 ACD/P4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- High-Frequency Motors
