S7013 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S7013 CD/P4ADGA Bearing Product Overview & Core Advantages
The S7013 CD/P4ADGA is a precision angular contact ball bearing designed for exceptional performance in demanding applications. As a universal matchable (SU) bearing supplied in a pre-matched set of two, it delivers superior high rigidity and can accommodate combined loads (radial and axial) simultaneously. Manufactured to P4A tolerance class with an extra light preload, this bearing ensures high running accuracy, making it ideal for high-speed spindles and other precision machinery requiring maximum reliability and dimensional stability.
S7013 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| S7013 | Basic bearing series and size designation |
| CD | Contact angle of 15° and specific internal design |
| P4A | High precision tolerance class (exceeds ABEC 7) |
| DGA | Universal matchable bearing supplied as a pre-set pair |
S7013 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The universal matching (SU) arrangement of two bearings creates a rigid bearing system capable of handling significant combined radial and axial loads from both directions. The 15° contact angle optimizes axial load carrying capacity while maintaining good radial performance.
Precision & High-Speed Performance: Manufactured to P4A tolerance class with extremely tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing ensures minimal runout and vibration. The phenolic resin cage and optimized internal geometry contribute to excellent high-speed capability with a limiting speed of 36,000 rpm.
Preloaded Configuration: The extra light preload (Class A) eliminates internal clearance, providing precise shaft positioning, improved stiffness, and reduced noise levels during operation.
Sealed & Lubricated Design: As a sealed bearing with factory-applied grease lubrication, it offers protection against contamination and is ready for immediate installation without additional lubrication requirements.
S7013 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- Precision Instruments: Measuring equipment, optical instruments, and laboratory devices
- High-Speed Motors: Spindle motors, servo motors, and other precision drive systems
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
