7219 ACD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7219 ACD/P4ADGA
Basic Information
System of measurement
Metric
Weight
5.4 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
170 mm
Outside diameter tolerance
-0.004mm to 0
Width
64 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
23.812 mm
Ball quantity
15
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
48600 lbf
Radial static load rating
51300 lbf
Limiting speed
15 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
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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7219 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7219 ACD/P4ADGA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As a universal matchable (SU) bearing supplied in a pre-lubricated, matched pair, it delivers superior performance in handling combined radial and axial loads. Its P4A tolerance class and extra light preload (Class A) ensure high running accuracy and smooth operation, making it ideal for high-speed, high-rigidity spindle arrangements and other precision machinery.
7219 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle for optimal axial load capacity. |
| P4A | Indicates a high-precision tolerance class with enhanced dimensional and running accuracy requirements. |
| DGA | Specifies a universal matchable (SU) bearing pair with extra light preload (Class A). |
7219 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row angular contact design provides high rigidity and the ability to sustain significant combined loads from multiple directions simultaneously.
- Precision & Speed: Manufactured to P4A tolerance class and featuring a lightweight phenolic cage, this bearing supports high-speed operation up to 15,000 rpm while maintaining stability.
- Optimized Universal Matching: As a Universal Matchable (SU) pair, two bearings can be mounted in any configuration (back-to-back, face-to-face, or tandem) to achieve the required stiffness and load distribution without selective assembly.
- Durable Construction: Components made from chrome steel ensure high durability and fatigue resistance, suitable for continuous operation.
7219 ACD/P4ADGA Bearing Typical Application Areas
This precision bearing is engineered for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Drives and Precision Positioning Systems
