S71915 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71915 ACE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.29 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
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
4770 lbf
Radial static load rating
3600 lbf
Limiting speed
18.5 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:
$ 964.57
/ each
In Stock
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S71915 ACE/HCP4A Bearing Product Overview & Core Advantages
The S71915 ACE/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (simultaneous radial and axial loads), this single-row bearing features a 25° contact angle optimized for high axial load capacity. Its ceramic balls and P4 (ABEC-7) tolerance class ensure superior running accuracy, reduced friction, and extended service life, making it ideal for high-speed, high-rigidity applications where reliability is paramount.
S71915 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | High-precision bearing series |
| 1915 | Standard size designation (75mm bore, 105mm OD, 16mm width) |
| ACE | 25° contact angle, optimized internal design, and preload |
| HC | Hybrid Ceramic (steel rings with ceramic balls) |
| P4 | Precision tolerance class (ABEC-7 equivalent) |
| A | Specific internal clearance/preload designation |
S71915 ACE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear, enabling higher limiting speeds (18,500 rpm) and longer service life compared to all-steel bearings.
- High Rigidity & Load Capacity: The 25° contact angle and optimized internal geometry provide excellent resistance to axial loads while maintaining good radial load capacity (4770 lbf dynamic / 3600 lbf static). The available preload further enhances system stiffness.
- Precision Performance: Manufactured to P4 tolerance class, this bearing ensures minimal runout and vibration, critical for applications requiring high rotational accuracy.
- Phenolic Cage: The phenolic cage offers excellent dimensional stability at high speeds, low weight, and good compatibility with lubrication, contributing to smooth operation at high RPM.
- Sealed & Lubricated: The sealed design with factory-applied lubrication protects against contamination and provides maintenance-free operation within the specified temperature range (-30° to 110°C).
S71915 ACE/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- Medical & Dental Equipment
- Aerospace Control Systems
- High-Frequency Motors & Spindles
- Semiconductor Manufacturing Equipment
- Laboratory & Analytical Instruments
