S7016 ACD/P4ADBB
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7016 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
1.74 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.004mm to 0
Width
44 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
14.288 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
22725 lbf
Radial static load rating
26100 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
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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S7016 ACD/P4ADBB Bearing Product Overview & Core Advantages
The S7016 ACD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rigidity and rotational accuracy. This matched back-to-back (DB) arrangement provides superior stability under combined loads (radial and axial) and moments. Manufactured to P4A tolerance class, it ensures minimal runout and vibration, making it ideal for high-speed, high-precision machinery. Its pre-greased and sealed design offers long-term, maintenance-free operation.
S7016 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7016 | Basic bearing series and size designation (80mm bore, 125mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Duplex (two bearings supplied as a matched set). |
| P4A | High precision tolerance class, exceeding ABEC-7/ISO P4 standards. |
| DBB | Back-to-Back mounting arrangement for high moment stiffness. |
S7016 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) configuration creates a wide, rigid support system, significantly increasing resistance to moment loads and enabling high combined load handling (Radial Dynamic: 22,725 lbf, Static: 26,100 lbf).
- Precision & High-Speed Performance: The P4A tolerance class ensures minimal dimensional variation for smooth, quiet operation. The phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 28,000 rpm.
- Sealed & Lubricated for Life: The bearing is sealed and pre-lubricated with grease, protecting against contamination and providing reliable, maintenance-free operation within a temperature range of -30°C to 110°C.
- Superior Materials: Constructed from chrome steel for rings and balls, ensuring high durability and long service life under demanding conditions.
S7016 ACD/P4ADBB Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles (CNC milling, grinding, and turning centers)
- High-Speed Spindles for PCB drilling and routing
- Precision Gearboxes and Robotic Actuators
- Medical Equipment and Analytical Instruments
