S7013 CD/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7013 CD/P4ADBA Bearing Product Overview & Core Advantages
The S7013 CD/P4ADBA is a precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. This duplex back-to-back (DB) matched set features an extra light preload (Class A) and a P4A super-precision tolerance class, making it ideal for high-speed spindles and other precision machinery. Its design is optimized to handle combined radial and axial loads simultaneously, providing stable and reliable performance in demanding operational conditions. The sealed construction with phenolic cage ensures consistent operation at high speeds.
S7013 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | Duplex Back-to-Back arrangement | Provides high rigidity and moment load capacity |
| P4A | Super precision tolerance class | Ensures exceptional running accuracy and minimal vibration |
| Sealed | Integrated sealing | Protects against contamination and retains lubrication |
S7013 CD/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and shaft deflection. Combined with P4A tolerance class and tight dimensional tolerances (bore: -0.004mm to 0, OD: -0.004mm to 0), this ensures exceptional running accuracy for precision applications.
Optimized Load Capacity: With a 15° contact angle and duplex arrangement, this bearing set efficiently handles combined radial and axial loads from both directions. The dynamic load rating of 15,210 lbf and static load rating of 16,875 lbf provide reliable performance under demanding operating conditions.
High-Speed Capability: The phenolic cage material and precision manufacturing enable operation at limiting speeds up to 36,000 rpm. The sealed construction with factory-applied grease lubrication ensures consistent performance throughout the operating temperature range of -30°C to 110°C.
Long Service Life: The chrome steel construction for both rings and balls, combined with 20 high-quality balls of 11.112 mm diameter, ensures durability and extended service life in precision applications.
S7013 CD/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Rotary Tables - Indexing and positioning systems requiring high accuracy
- High-Speed Motors - Spindle motors and high-frequency applications
- Medical Equipment - Dental handpieces and surgical tool rotors
- Aerospace Systems - Gyroscopes and navigation instrument rotors
- Semiconductor Manufacturing - Wafer processing equipment and precision positioning stages
