7219 CD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7219 CD/P4A
Basic Information
System of measurement
Metric
Weight
2.7 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
170 mm
Outside diameter tolerance
-0.01mm to 0
Width
32 mm
Width tolerance
-0.24mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
23.812 mm
Ball quantity
15
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
31050 lbf
Radial static load rating
27000 lbf
Limiting speed
13 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1333.2
/ each
In Stock
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7219 CD/P4A Bearing Product Overview & Core Advantages
The 7219 CD/P4A is a single-row angular contact ball bearing designed for applications demanding high precision and superior rigidity. Engineered to P4 (ABEC-7) tolerance class, this bearing excels at handling combined loads—simultaneously supporting significant radial loads and thrust loads in one direction. Its optimized internal geometry, including a 15° contact angle, ensures stable operation at high speeds. Preloaded and pre-lubricated, it is ready for immediate installation in high-performance machinery requiring exceptional running accuracy and reliability.
7219 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7219 | Basic bearing series: 19mm bore diameter code, 2xx series outside diameter and width. |
| CD | High contact angle design (typically 15°) and optimized internal geometry for enhanced load capacity and rigidity. |
| P4 | Tolerance class equivalent to ABEC-7, indicating very high dimensional and running accuracy. |
| A | Indicates the bearing is supplied with a specific preload for immediate high-stiffness performance. |
7219 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Preload: Supplied with a defined preload, the bearing achieves high system stiffness from the moment of installation, minimizing deflection under load and improving machining accuracy.
- Superior Load Capacity: The 15° contact angle and robust internal design enable it to handle substantial combined radial and axial loads efficiently.
- High-Speed Performance: The lightweight phenolic resin cage ensures excellent dimensional stability and low friction, contributing to a high limiting speed of 13,000 rpm.
- Precision & Longevity: Manufactured to P4 precision class from high-grade chrome steel, it offers low noise, minimal vibration, and extended service life in demanding conditions.
7219 CD/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes
- High-Frequency Motors and Spindles
- Medical Equipment (e.g., High-speed dental handpieces, imaging devices)
- Aerospace Actuation Systems
