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Super Precision Angular Contact Ball Bearings 7018 CD/P4A

Super Precision Angular Contact Ball Bearings 7018 CD/P4A

The 7018 CD/P4A is a super precision angular contact ball bearing with a 90mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 17842 lbf and operates smoothly at speeds up to 15000 RPM.

Its 15° contact angle and phenolic cage ensure stable performance under angular loads, while the open design allows for easy lubrication. The bearing works reliably in temperatures ranging from -30°C to 110°C.

This model meets the P4 tolerance class (ABEC-7), making it suitable for high-precision applications. Ideal for use in machine tools or spindle systems where accuracy and speed are crucial.

Weighing 1.16kg, it’s a robust yet manageable option for industrial settings. Compatible with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 7018 CD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 20
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 17842 lbf
  • Static Radial Load 17212 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 15000 rpm
  • Weight 1.16 kg
  • Price（$） 218.322
Super Precision Angular Contact Ball Bearings 7018 CD/P4A dimension drawing
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Features

Performance Features of 7018 CD/P4A Bearing

7018 CD/P4A Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 17842 lbf.

The phenolic cage ensures smooth operation, even at high speeds of 15,000 rpm.
Precision tolerance class P4 (ABEC-7) guarantees consistent performance in demanding conditions.

7018 CD/P4A Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Application

Key Fields for 7018 CD/P4A Bearing
In machine tools, 7018 CD/P4A Bearing excels due to its high precision and angular contact design, which ensures accurate spindle rotation. The phenolic cage reduces friction, making it ideal for high-speed operations.

Where Is 7018 CD/P4A Bearing Used?
You’ll often find 7018 CD/P4A Bearing in automotive transmissions, where its 15° contact angle handles combined loads efficiently. Its P4 tolerance class guarantees consistent performance in demanding conditions.

Built for Heavy-Duty Use: 7018 CD/P4A Bearing
This bearing is a reliable choice for industrial pumps, thanks to its chrome steel construction and dynamic radial load capacity. The open design allows for easy lubrication, extending service life.

Automotive vs Aerospace: Applications of 7018 CD/P4A Bearing
In automotive systems, 7018 CD/P4A Bearing supports gearboxes, while in aerospace, its precision suits actuator mechanisms. The 15.875 mm balls ensure smooth operation in both fields.

Practical Applications of 7018 CD/P4A Bearing
For robotics, 7018 CD/P4A Bearing offers low friction and high-speed capability, perfect for articulated arms. Its 140 mm outer diameter provides stability in compact designs.

Q&A

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