7018 CDTP/P4B
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7018 CDTP/P4B
Basic Information
System of measurement
Metric
Weight
1.16 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.009mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
15.875 mm
Ball quantity
20
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
17842 lbf
Radial static load rating
17212 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:
$ 921.87
/ each
In Stock
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7018 CDTP/P4B Bearing Product Overview & Core Advantages
The 7018 CDTP/P4B is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with a 15° contact angle, it is optimized to support combined loads, handling significant radial loads alongside axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures ultra-precise running, making it ideal for high-speed spindles and other critical machinery. The phenolic cage and preload availability contribute to its high-speed capability and operational stability.
7018 CDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| CD | Specifies a 15° contact angle, optimized for high-speed operation and high rigidity. |
| T | Indicates a phenolic (textile laminate) cage, which is lightweight and ideal for high-speed applications. |
| P | Denotes that the bearing is available with preload for enhanced stiffness and reduced axial/radial play. |
| P4B | Signifies the tolerance class P4 (ABEC-7), guaranteeing extremely tight dimensional and running accuracy for precision applications. |
7018 CDTP/P4B Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 15° contact angle and availability of preload provides superior system stiffness, minimizing deflection under load for exceptional positional accuracy.
- Superior Load Capacity: Engineered to handle combined radial and axial loads simultaneously, with a high dynamic load rating of 17,842 lbf, ensuring long service life in demanding conditions.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the precision-ground chrome steel components and optimized internal geometry enable a high limiting speed of 9,000 rpm.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, ready for installation and initial operation, simplifying the assembly process.
7018 CDTP/P4B Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (e.g., milling, grinding)
- High-Frequency Motors
- Precision Gearboxes
- Medical and Dental Equipment
- Aerospace Actuation Systems
