S7016 CD/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7016 CD/P4ADBA Bearing Product Overview & Core Advantages
The S7016 CD/P4ADBA is a duplex back-to-back (DB) matched pair of high-precision angular contact ball bearings. This configuration is engineered to provide exceptional high rigidity and stability, making it ideally suited for applications requiring precise shaft positioning and the ability to withstand combined loads (significant radial and bidirectional axial loads). Manufactured to the exacting P4A tolerance class, it delivers superior running accuracy for demanding, high-performance machinery.
S7016 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7016 | Bearing Series & Size | Denotes a 70-series angular contact bearing with 80mm bore, 125mm OD. |
| C | 15° Contact Angle | Optimized for high-speed operation and balanced axial load capacity. |
| D | Duplex Back-to-Back (DB) Arrangement | Provides high moment rigidity and stable preload. |
| P4A | Tolerance Class | High-precision grade with enhanced running accuracy and dimensional tolerances. |
| DB | Universal Matching (Face-to-Face/Back-to-Back) | Indicates the bearings are selectively matched for optimal performance in a DB set. |
| A | Preload: Extra Light (Class A) | Minimizes friction and heat generation, ideal for high-speed applications. |
S7016 CD/P4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a wide, rigid support system that effectively resists moment loads and tilting. This design enables the bearing set to handle significant combined radial and axial loads from both directions simultaneously.
High-Speed Performance: The combination of a 15° contact angle and an extra light preload (Class A) minimizes friction and heat buildup. The phenolic resin cage is lightweight and robust, contributing to smooth operation at the high limiting speed of 28,000 rpm.
Sealed & Pre-Lubricated: As a sealed bearing, it is protected from contamination and comes pre-lubricated with grease. This design offers long-term, maintenance-free operation within the specified temperature range.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, ensuring superior running accuracy and system performance.
S7016 CD/P4ADBA Bearing Typical Application Areas
The S7016 CD/P4ADBA is designed for high-performance applications where precision, speed, and rigidity are critical. Key industries and machinery include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
