S7015 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7015 CD/HCP4A
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
75 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.008mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
20
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
11858 lbf
Radial static load rating
11025 lbf
Limiting speed
14 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:
$ 723.7
/ each
In Stock
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S7015 CD/HCP4A Bearing Product Overview & Core Advantages
The S7015 CD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and reliability. This single-row bearing is distinguished by its 15° contact angle and is supplied with a preload, ensuring minimal axial and radial play for superior system rigidity. Manufactured to a P4 (ABEC-7) tolerance class, it guarantees ultra-precise running performance. The combination of a ceramic ball material and a phenolic cage enables outstanding high-speed performance, with a limiting speed of 14,000 rpm, making it an ideal solution for high-velocity spindles and precision machinery.
S7015 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model designation S7015 CD/HCP4A provides detailed technical specifications:
- S7015: Denotes a 75mm bore diameter, 115mm outside diameter high-precision angular contact bearing.
- C: Indicates a 15° contact angle, optimized for high-speed operation and moderate axial load capacity.
- D: Signifies a duplex arrangement (in this context, supplied as a single bearing but prepared for a specific preload or duplex pairing).
- HC: Stands for Hybrid Ceramic, confirming the use of ceramic balls, which reduce centrifugal forces, lower operating temperature, and extend service life at high speeds.
- P4A: Specifies the tolerance class P4 (ABEC-7), ensuring extremely tight dimensional and running accuracy.
S7015 CD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4 tolerance and applied preload eliminate internal clearance, providing high system stiffness and precise shaft positioning, which is critical for machining accuracy.
- Superior High-Speed Capability: The hybrid ceramic design with silicon nitride balls significantly reduces rolling element mass. This, combined with the lightweight, high-strength phenolic resin cage, lowers inertial forces and friction, enabling stable operation at the high limiting speed of 14,000 rpm.
- Excellent Load Capacity: The angular contact design efficiently supports combined (radial and axial) loads. With a dynamic load rating of 11,858 lbf and a static load rating of 11,025 lbf, it offers robust performance under significant stress.
- Optimized for Longevity: The bearing comes pre-lubricated and is constructed from chrome steel rings for high wear resistance, ensuring a long operational life in its specified temperature range of -30° to 110 °C.
S7015 CD/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where speed, precision, and rigidity are paramount.
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for electric motors requiring minimal runout and high rotational accuracy.
- Advanced Robotics: Joints and actuators in high-precision automation systems.
