71830 CD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71830 CD/P4
Basic Information
System of measurement
Metric
Weight
1.1 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
150 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
190 mm
Outside diameter tolerance
-0.011mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
35
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
11700 lbf
Radial static load rating
16200 lbf
Limiting speed
9 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:
$ 2405.65
/ each
In Stock
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71830 CD/P4 Bearing Product Overview & Core Advantages
The 71830 CD/P4 is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, this single-row bearing is optimized to handle combined loads, accommodating significant axial loads in one direction alongside radial loads. Its 15° contact angle and preload availability contribute to its high system rigidity and precise shaft positioning, making it an ideal choice for high-speed spindles and other precision machinery.
71830 CD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71830 | Basic bearing designation indicating the bearing size (150mm bore, 190mm OD, 20mm width). |
| CD | Indicates a specific contact angle (15°) and internal design optimized for high rigidity and high-speed performance. |
| P4 | Denotes the tolerance class, equivalent to ABEC-7, ensuring extremely tight dimensional and running accuracy for precision applications. |
71830 CD/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The angular contact design and availability of preload ensure minimal deflection under load, providing exceptional system stiffness and accurate rotational performance critical for machine tool spindles.
- Optimized High-Speed Capability: The phenolic resin cage offers low weight and excellent sliding properties, contributing to a high limiting speed of 9,000 rpm. The 15° contact angle further supports stable operation at high rotational velocities.
- Superior Load Capacity: Manufactured from chrome steel for both rings and balls, the bearing achieves a high dynamic load rating of 11,700 lbf and a static load rating of 16,200 lbf, enabling reliable performance under demanding combined loads.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, ensuring immediate installation and initial operation without the need for additional preparation.
71830 CD/P4 Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (milling, grinding, and lathe spindles)
- High-Speed Machining Centers
- Precision Gearboxes
- Industrial Pumps and Compressors
- Medical and Laboratory Equipment
