7217 CD/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 CD/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
15 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
17
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
22388 lbf
Radial static load rating
19800 lbf
Limiting speed
15 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:
$ 1035.26
/ each
In Stock
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7217 CD/P4A Bearing Product Overview & Core Advantages
The 7217 CD/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to simultaneously handle combined radial and axial loads, this single-row bearing features a 15° contact angle and is supplied with a preload for enhanced system stiffness and precise shaft positioning. Manufactured to a P4 (ABEC-7) tolerance class, it is ideal for high-speed, high-reliability machinery where minimal runout and superior performance are critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7217 | Basic bearing series, indicating a metric angular contact ball bearing with an 85mm bore and 150mm outside diameter. |
| C | Designates a 15° contact angle. |
| D | Indicates the bearing is supplied with a preload for high rigidity. |
| P4 | Specifies the high-precision tolerance class (equivalent to ABEC-7). |
| A | Denotes a 30° contact angle (Note: This may indicate a specific variant or pairing; the primary contact angle for this model is 15° as per the C designation). |
7217 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The P4 tolerance class ensures minimal dimensional variation, while the applied preload (D) eliminates internal clearance, resulting in superior shaft guidance and system stiffness, critical for precision machining.
- Optimized Load Capacity: The 15° contact angle (C) is engineered to efficiently support significant combined loads, handling both radial forces and thrust loads in one direction.
- High-Speed Capability: The lightweight, durable phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 15,000 rpm. The open design allows for efficient lubrication management.
- Superior Material & Construction: Manufactured from chrome steel for both rings and balls, the bearing offers high fatigue life and durability. The specified ball diameter and quantity (19.05mm, 17 balls) are optimized for the load rating and operational smoothness.
7217 CD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for applications requiring high speed, accuracy, and rigidity, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
