S7015 CD/P4ADBC
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7015 CD/P4ADBC
Basic Information
System of measurement
Metric
Weight
1.28 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
75 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
115 mm
Outside diameter tolerance
-0.004mm to 0
Width
40 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°C to 110 °C
Radial dynamic load rating
19170 lbf
Radial static load rating
22050 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7015 CD/P4ADBC Bearing Product Overview & Core Advantages
The S7015 CD/P4ADBC is a precision duplex angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement is preloaded to Moderate (Class C) specifications, delivering superior system stability and resistance to complex combined loads. Manufactured to P4A tolerance class, it ensures minimal runout and is ideal for high-precision, high-reliability machinery where uncompromising performance is critical.
S7015 CD/P4ADBC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7015 | Basic bearing series, indicating a 75mm bore, 115mm OD, and 40mm width. |
| C | 15° contact angle, optimized for high-speed operation and axial load capacity. |
| D | Duplex (Two bearings supplied as a set). |
| P4A | High-Precision Tolerance Class with enhanced running accuracy requirements. |
| DB | Back-to-Back mounting arrangement, providing high moment rigidity. |
| C | Moderate preload (Class C) for optimal stiffness and positioning accuracy. |
S7015 CD/P4ADBC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design with a defined preload creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, ensuring precise shaft positioning.
- Superior Load Capacity: The 15° contact angle and robust construction enable the bearing to handle significant combined radial and axial loads simultaneously, with a dynamic load rating of 19,170 lbf and a static load rating of 22,050 lbf.
- Optimized High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 28,000 rpm. The standard grease lubrication is suitable for this operational range.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances on the bore, outside diameter, and width, this bearing guarantees exceptional running accuracy and low vibration levels.
- Sealed & Ready-to-Use: The sealed construction protects against contamination and retains lubricant, offering long-term, maintenance-free operation in clean environments.
S7015 CD/P4ADBC Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and high-speed milling heads.
- Precision Gearboxes: Especially in robotics and high-torque, low-backlash systems.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and other small motor applications.
- Medical and Laboratory Equipment: Centrifuges, scanners, and other instruments requiring smooth, precise rotation.
- Aerospace Actuation Systems: Where reliability and accuracy under load are critical.
