7214 ACD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7214 ACD/P4A
Basic Information
System of measurement
Metric
Weight
1.11 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
16
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
14918 lbf
Radial static load rating
12375 lbf
Limiting speed
16 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:
$ 279.77
/ each
In Stock
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7214 ACD/P4A Bearing Product Overview & Core Advantages
The 7214 ACD/P4A is a high-precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. As a single-row bearing with a 25° contact angle, it excels at supporting combined loads, particularly high axial loads in one direction. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior running accuracy, making it ideal for high-speed spindles and other precision machinery where minimal runout and vibration are critical. Its preload availability further enhances system rigidity and positioning accuracy.
7214 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7214 | Basic bearing series, indicating a 70 mm bore, 125 mm OD, and 24 mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high-capacity internal design with a larger ball complement. |
| P4A | Denotes a P4 (ABEC-7) tolerance class with specific dimensional and running accuracy requirements. |
7214 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized 25° contact angle and high-capacity "D" design with 16 balls enable the bearing to handle significant combined radial and axial loads. The availability of preload allows for a stiffened bearing arrangement, reducing deflection under load.
- Precision High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and smooth operation at the limiting speed of 16,000 rpm. The P4 precision grade ensures minimal vibration for high-speed applications.
- Superior Material and Construction: Rings and balls made from high-grade chrome steel provide excellent wear resistance and fatigue life. The open seal type allows for customized lubrication schemes to optimize performance for specific speed and temperature conditions.
7214 ACD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and Pumps: Where high axial load capacity and accuracy are required.
- High-Frequency Motors and Spindles: Applications demanding low vibration and high rotational accuracy.
- Medical and Laboratory Equipment: Centrifuges and other precision instruments.
