7217 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.
7217 ACD/P4A
Basic Information
System of measurement
Metric
Weight
1.86 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
21510 lbf
Radial static load rating
19125 lbf
Limiting speed
13 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:
$ 1035.05
/ each
In Stock
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7217 ACD/P4A Bearing Product Overview & Core Advantages
The 7217 ACD/P4A is a high-precision single row angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it excels in supporting high combined loads, particularly thrust loads in one direction, making it ideal for high-speed spindles and precision machinery. Its 25° contact angle optimizes the balance between radial and axial load capacity, while the phenolic cage ensures smooth operation at the specified limiting speed.
7217 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 7217 ACD/P4A provides specific technical information:
- 7217: Basic series number (85mm bore, 150mm OD, 28mm width).
- A: Denotes a 25° contact angle.
- CD: Indicates a matched arrangement for duplex mounting (not applicable as a single unit, but specifies its type for pairing).
- P4A: Specifies the tolerance class P4 (ABEC-7) and a narrower width tolerance than standard P4.
7217 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4 precision class with tight dimensional tolerances, this bearing provides stable, high-rigidity support for shafts, minimizing runout and vibration.
- Optimized Load Capacity: The 25° contact angle is engineered to handle significant one-direction axial loads in addition to radial loads, offering excellent performance under combined loading conditions.
- High-Speed Capability: The lightweight, durable phenolic resin cage reduces centrifugal forces, lowers friction, and contributes to a high limiting speed of 13,000 rpm.
- Superior Material Construction: Made from chrome steel for both rings and balls, the bearing ensures high durability, wear resistance, and a long operational life under demanding conditions.
7217 ACD/P4A Bearing Typical Application Areas
This precision angular contact bearing is typically specified in high-performance applications such as:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
