S7019 CE/P4ADBA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7019 CE/P4ADBA
Basic Information
System of measurement
Metric
Weight
2.54 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
145 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
16088 lbf
Radial static load rating
17212 lbf
Limiting speed
15 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
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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S7019 CE/P4ADBA Bearing Product Overview & Core Advantages
The S7019 CE/P4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class with an extra light preload, it ensures minimal runout and high positional accuracy, making it ideal for high-speed, high-precision spindles and machinery.
S7019 CE/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Indicates a 15° contact angle and specific internal design optimized for high-speed operation. |
| P4A | Denotes an ABEC 7 / ISO P4 precision class with enhanced width and radial runout tolerances for superior accuracy. |
| DB | Signifies a Duplex Back-to-Back matched set, providing high rigidity and moment load capacity. |
| A | Specifies an Extra Light Preload for minimal friction and optimal high-speed performance. |
S7019 CE/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The back-to-back duplex arrangement creates a wide effective spread, significantly increasing system rigidity and resistance to moment loads, which is critical for maintaining precision under heavy cutting forces.
- Superior Load Capacity: With a 15° contact angle and a dynamic load rating of 16,088 lbf, this bearing is engineered to handle significant combined radial and axial loads simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel balls and raceways ensure smooth operation up to a limiting speed of 15,000 rpm.
- Sealed & Pre-lubricated: The sealed design with factory-applied grease protects against contamination and provides long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
S7019 CE/P4ADBA Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors and Precision Spindles
- Industrial Pumps and Compressors
- Robotic Drives and Rotary Tables
