71817 ACD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71817 ACD/P4
Basic Information
System of measurement
Metric
Weight
0.27 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
110 mm
Outside diameter tolerance
-0.008mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
30
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4568 lbf
Radial static load rating
5400 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:
$ 1049.08
/ each
In Stock
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71817 ACD/P4 Bearing Product Overview & Core Advantages
The 71817 ACD/P4 is a single-row angular contact ball bearing engineered for high-precision applications requiring superior rotational accuracy and rigidity. Manufactured to P4 (ABEC-7) tolerance class, this bearing is designed to accommodate primarily axial loads in one direction, as well as combined radial and axial loads. Its compact cross-section, with a 13mm width, makes it ideal for space-constrained, high-speed arrangements. The phenolic cage and optimized 25° contact angle contribute to its exceptional high-speed performance and operational stability.
71817 ACD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71817 | Basic bearing designation, defining the standard metric dimensions (85mm bore, 110mm OD, 13mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Signifies a high-capacity internal design with a larger ball complement (30 balls) and larger ball diameter (7.144mm). |
| P4 | Indicates a super-precision tolerance class (equivalent to ABEC-7), ensuring extremely tight dimensional and running accuracy. |
71817 ACD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and high-capacity "D" design with 30 balls enable the bearing to support significant axial loads and combined loads, providing high system rigidity.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, lowers friction, and enables a high limiting speed of 16,000 rpm. The open design facilitates efficient lubrication and cooling.
- Precision Engineering: Manufactured to P4 tolerance class, this bearing guarantees minimal runout and vibration, which is critical for applications demanding the highest levels of accuracy and smooth operation.
- Preload Availability: The bearing is supplied with a preload option, allowing for precise adjustment of internal clearance to achieve optimal stiffness and rotational accuracy in the final application.
71817 ACD/P4 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles (high-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Medical and Dental Equipment
- Aerospace Actuation Systems
