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Super Precision Angular Contact Ball Bearings 7018 ACD/P4AQBCA

Super Precision Angular Contact Ball Bearings 7018 ACD/P4AQBCA

The 7018 ACD/P4AQBCA is a super precision angular contact ball bearing with a 90mm bore and 140mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched set of four bearings for balanced performance.

This bearing handles dynamic radial loads up to 44775 lbf and spins smoothly at speeds up to 16000 RPM. Its extra-light preload (Class A) ensures minimal friction and precise operation.

The open design allows easy lubrication, while the phenolic cage enhances durability. It operates efficiently in temperatures from -30°C to 110°C.

Ideal for high-precision applications like machine tool spindles or high-speed robotics, where accuracy and reliability are key. Weighing 4.63kg, it’s robust yet manageable for its size.

This model is interchangeable with SKF bearings, making it a practical choice for replacements or upgrades. Compliant with precision tolerance class P4A for consistent performance.

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Product Parameters

  • Part Number 7018 ACD/P4AQBCA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 96 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 20
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 4 bearings <<>> QBC
  • Number Of Bearings In Matched Set 4
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 44775 lbf
  • Static Radial Load 65250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16000 rpm
  • Weight 4.63 kg
Super Precision Angular Contact Ball Bearings 7018 ACD/P4AQBCA dimension drawing
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Features

Performance Features of 7018 ACD/P4AQBCA Bearing

7018 ACD/P4AQBCA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 44775 lbf.

Its phenolic cage ensures smooth operation, even at high speeds of 16,000 rpm.
The extra light preload (Class A) reduces friction, improving efficiency and longevity.

7018 ACD/P4AQBCA Bearing operates reliably in temperatures from -30°C to 110°C.
The matched arrangement of four bearings ensures consistent performance in precision applications.

With a P4A tolerance class, 7018 ACD/P4AQBCA Bearing delivers high precision and stability.
Its open design allows for easy lubrication, maintaining optimal performance over time.

Application

Essential Roles of 7018 ACD/P4AQBCA Bearing
7018 ACD/P4AQBCA Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for long operational cycles.

In robotics, 7018 ACD/P4AQBCA Bearing provides stability in articulated arms, handling both radial and axial loads effortlessly. Its matched arrangement of four bearings enhances alignment and load distribution.

For aerospace applications, 7018 ACD/P4AQBCA Bearing’s P4A tolerance class meets strict precision requirements. The chrome steel construction ensures durability even under extreme temperature variations.

Automotive testing equipment benefits from 7018 ACD/P4AQBCA Bearing’s extra light preload, which minimises vibration during high-speed runs. The open seal design allows for easy lubrication maintenance.

In medical imaging devices, 7018 ACD/P4AQBCA Bearing’s smooth operation ensures precise positioning of components. Its high dynamic radial load capacity makes it reliable for critical applications.

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