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Super Precision Angular Contact Ball Bearings 7040 ACD/P4AQBCD

Super Precision Angular Contact Ball Bearings 7040 ACD/P4AQBCD

The 7040 ACD/P4AQBCD is a super precision angular contact ball bearing with a 200mm bore and 310mm outer diameter, crafted from durable chrome steel. It’s designed for heavy preload and handles radial loads up to 166725 lbf, with a maximum speed of 16250 RPM.

Its open design and phenolic cage ensure smooth operation and easy maintenance. The 25° contact angle and matched set of four bearings provide excellent stability for high-precision applications.

This bearing operates efficiently in temperatures from -30°C to 110°C and is interchangeable with SKF models. Ideal for machine tools or spindle systems where precision and heavy loads are critical.

Weighing 49.1kg, it’s robust yet designed for performance in demanding environments. Compliant with industry standards, it’s a reliable choice for engineers and maintenance teams.

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Product Parameters

  • Part Number 7040 ACD/P4AQBCD
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 310 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 204 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 34.925 mm
  • Ball Qty 21
  • 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 Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 166725 lbf
  • Static Radial Load 328500 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 16250 rpm
  • Weight 49.1 kg
Super Precision Angular Contact Ball Bearings 7040 ACD/P4AQBCD dimension drawing
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Features

Performance Features of 7040 ACD/P4AQBCD Bearing

7040 ACD/P4AQBCD Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high radial loads, up to 166725 lbf dynamically.

The phenolic cage maintains ball alignment, reducing friction and enhancing operational smoothness.
With a maximum speed of 16,250 rpm, it balances precision and performance in demanding conditions.

7040 ACD/P4AQBCD Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its heavy preload class D ensures stability, making it suitable for high-precision machinery.

The matched arrangement of four bearings provides consistent performance in complex setups.
Open seal design allows for easy lubrication, maintaining optimal functionality over time.

Application

Industrial Uses of 7040 ACD/P4AQBCD Bearing
7040 ACD/P4AQBCD Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The heavy preload and P4A tolerance class make it suitable for demanding industrial environments.

In aerospace applications, 7040 ACD/P4AQBCD Bearing supports critical components like turbine shafts, thanks to its high dynamic radial load capacity. The phenolic cage provides stability under extreme temperatures and speeds.

For robotics, 7040 ACD/P4AQBCD Bearing offers reliable performance in articulated arms, where smooth movement is essential. The matched arrangement of four bearings enhances load distribution and longevity.

7040 ACD/P4AQBCD Bearing is also found in medical imaging devices, where its precision and low vibration are crucial for clear scans. The chrome steel construction ensures durability in high-use scenarios.

In automation systems, 7040 ACD/P4AQBCD Bearing helps maintain accuracy in CNC machines and 3D printers. Its open design allows for easy lubrication, ensuring consistent performance over time.

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