S71915 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71915 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.3 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
105 mm
Outside diameter tolerance
-0.008mm to 0
Width
16 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
7605 lbf
Radial static load rating
7988 lbf
Limiting speed
13 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 964.48
/ each
In Stock
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S71915 ACD/HCP4A Bearing Product Overview & Core Advantages
The S71915 ACD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This single-row bearing is distinguished by its ceramic ball material and P4 (ABEC-7) tolerance class, ensuring superior performance in high-speed and high-rigidity scenarios. Its design is optimized to handle combined radial and axial loads simultaneously, making it an ideal solution for compact, high-performance machinery where space and precision are critical.
S71915 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71915 | Denotes the bearing series and size; a 75mm bore, 105mm OD, 16mm width precision bearing. |
| ACD | Indicates a 25° contact angle and that the bearing is supplied with a specific preload for high rigidity and precise rotational accuracy. |
| HC | Signifies the use of a phenolic (Polyamide) cage, which contributes to lower friction, reduced weight, and excellent performance at high speeds. |
| P4A | Specifies the P4 tolerance class (ABEC-7), representing ultra-precision manufacturing standards for minimal runout and vibration. |
S71915 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 25° contact angle and factory-applied preload ensures maximum system stiffness and minimal deflection under load, which is critical for machining accuracy.
- Enhanced Speed and Temperature Performance: The ceramic balls (typically Silicon Nitride) reduce centrifugal forces, lower friction, and allow for a higher limiting speed of 13,000 rpm. They also provide stable operation across the specified temperature range (-30° to 110 °C).
- Optimized for Combined Loads: The angular contact design efficiently supports substantial radial loads and axial loads in one direction, with a high dynamic and static load rating for long service life.
- Sealed and Lubricated for Longevity: As a sealed bearing that is pre-lubricated, it is protected from contamination and is ready for immediate installation, reducing maintenance requirements.
S71915 ACD/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles for CNC milling and grinding machines
- High-speed Precision Instrumentation and measuring equipment
- Robotic Drives and high-accuracy automation systems
- Medical Device Motors and dental handpieces
- Aerospace Actuators and auxiliary power units
