S71917 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71917 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.54 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
85 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.008mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
25
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
10395 lbf
Radial static load rating
10800 lbf
Limiting speed
10 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:
$ 1190.55
/ each
In Stock
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S71917 CD/P4A Bearing Product Overview & Core Advantages
The S71917 CD/P4A is a metric precision angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. As a single-row bearing with a 15° contact angle and P4 (ABEC-7) tolerance class, it delivers superior performance in high-speed and high-precision scenarios. Its key advantages include the ability to accommodate combined radial and axial loads simultaneously, excellent high-speed capability facilitated by its phenolic cage, and a sealed, pre-lubricated design for reliable, long-term operation with minimal maintenance.
S71917 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71917 | Basic bearing designation, indicating a metric, single-row angular contact ball bearing with a 85 mm bore. |
| CD | Indicates a specific contact angle (15°) and internal design optimized for high rigidity and precise operation. |
| P4A | Denotes a high-precision tolerance class equivalent to ABEC-7, ensuring extremely tight dimensional and running accuracy. |
S71917 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The optimized internal geometry, including the 15° contact angle and high-grade chrome steel construction, provides exceptional stiffness and running accuracy, making it ideal for precision spindles.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, allowing for a high limiting speed and stable operation at 10,000 rpm.
- Robust Load Capacity: Engineered to handle significant combined loads with a dynamic load rating of 10,395 lbf and a static load rating of 10,800 lbf.
- Sealed and Pre-Lubricated: The sealed design protects against contamination, while the factory-applied lubrication ensures consistent performance across a wide temperature range (-30°C to 110°C), offering a maintenance-free service life.
S71917 CD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for demanding applications in:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation
- High-Frequency Motors
- Medical Equipment (e.g., Dental handpieces)
- Aerospace Actuation Systems
