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Super Precision Angular Contact Ball Bearings 7038 ACD/P4AQBCC

Super Precision Angular Contact Ball Bearings 7038 ACD/P4AQBCC

The 7038 ACD/P4AQBCC is a super precision angular contact ball bearing with a 190mm bore and 290mm outer diameter, crafted from durable chrome steel. It measures 190mm x 290mm x 184mm, making it suitable for heavy-duty applications.

With a 25° contact angle and moderate preload, it handles radial loads up to 139050 lbf and spins smoothly at speeds up to 11000 RPM. The open design and phenolic cage ensure reliable performance under high stress.

This bearing comes in a matched set of four, optimised for balanced load distribution. Ideal for precision machinery like CNC spindles or high-speed industrial equipment.

Weighing 38.1kg, it’s robust yet designed for efficiency. It operates in temperatures from -30°C to 110°C and meets P4A tolerance standards for accuracy.

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Product Parameters

  • Part Number 7038 ACD/P4AQBCC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 190 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 290 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 184 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 30.162 mm
  • Ball Qty 22
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 139050 lbf
  • Static Radial Load 261000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 38.1 kg
Super Precision Angular Contact Ball Bearings 7038 ACD/P4AQBCC dimension drawing
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Features

Performance Features of 7038 ACD/P4AQBCC Bearing

7038 ACD/P4AQBCC 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 dynamic radial loads of up to 139,050 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 11,000 rpm, it balances precision and performance in demanding conditions.

7038 ACD/P4AQBCC Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its moderate preload (Class C) ensures stable performance without excessive wear.

Application

Industrial Uses of 7038 ACD/P4AQBCC Bearing
This bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle performance. The moderate preload and P4A tolerance make it suitable for applications demanding tight rotational control.

In aerospace components, 7038 ACD/P4AQBCC Bearing handles both radial and axial loads efficiently, such as in helicopter rotor systems. Its phenolic cage offers lightweight stability, crucial for aviation environments.

For automation systems, 7038 ACD/P4AQBCC Bearing supports robotic arms requiring smooth, high-speed movement. The matched set of four bearings provides balanced load distribution, reducing wear over time.

Medical imaging devices benefit from 7038 ACD/P4AQBCC Bearing’s precision, ensuring quiet and reliable operation in MRI machines. The chrome steel construction maintains performance under continuous use.

In wind turbine gearboxes, 7038 ACD/P4AQBCC Bearing’s large size and dynamic load capacity handle extreme conditions. Its lubricated design helps maintain efficiency even in harsh weather.

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