7018 FE/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7018 FE/P4ADGA
Basic Information
System of measurement
Metric
Weight
2.41 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.004mm to 0
Width
48 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
28
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
12870 lbf
Radial static load rating
14175 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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7018 FE/P4ADGA Bearing Product Overview & Core Advantages
The 7018 FE/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Operating under P4A tolerance class, this bearing is engineered to handle combined loads efficiently, with its 18° contact angle optimizing performance for high axial load capacity. Its extra light preload (Class A) ensures minimal deflection and smooth operation, making it ideal for high-speed spindles and precision machinery. The universal matchable (SU) design allows for flexible mounting arrangements in pairs to support complex load conditions.
7018 FE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| FE | Steel machined window-type cage, pressed and guided by balls |
| P4A | High precision tolerance class with restricted width tolerance |
| DGA | Universal matchable bearing for duplex mounting (Universal Matchable SU) |
7018 FE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The P4A tolerance class and extra light preload provide superior dimensional stability and running accuracy, essential for applications requiring minimal runout and high positional accuracy.
- Optimized Load Capacity: With a 18° contact angle and robust construction, this bearing effectively supports combined radial and axial loads, offering a dynamic load rating of 12870 lbf and static load rating of 14175 lbf.
- High-Speed Capability: The phenolic cage and optimized internal geometry contribute to reduced friction and lower operating temperatures, enabling a limiting speed of 15,000 rpm.
- Universal Matching: The SU designation allows for simplified pairing in back-to-back (DB), face-to-face (DF), or tandem (DT) arrangements without selective matching, reducing assembly time and complexity.
7018 FE/P4ADGA Bearing Typical Application Areas
This precision angular contact bearing is specifically designed for high-performance applications including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial Pumps & Compressors
- Robotic Arm Joints & Precision Positioning Systems
