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Super Precision Angular Contact Ball Bearings 7038 ACD/P4ADBA

Super Precision Angular Contact Ball Bearings 7038 ACD/P4ADBA

The 7038 ACD/P4ADBA is a super precision angular contact ball bearing with a 190mm bore and 290mm outer diameter, designed for high-performance applications. Its 25° contact angle and extra light preload ensure smooth operation under heavy radial loads up to 84825 lbf.

Made from chrome steel with a phenolic cage, this bearing can handle speeds up to 11000 RPM and temperatures from -30°C to 110°C. The open design allows for easy lubrication, maintaining optimal performance over time.

This matched set of two bearings in a DB arrangement offers excellent stability and precision, ideal for machine tools or high-speed spindles. Its P4A tolerance class guarantees tight control for demanding industrial uses.

Weighing 19kg, it’s a robust choice for heavy-duty machinery. Interchangeable with SKF bearings, it simplifies replacements while meeting strict quality standards.

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Product Parameters

  • Part Number 7038 ACD/P4ADBA
  • 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 92 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 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • 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 84825 lbf
  • Static Radial Load 131625 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 19 kg
Super Precision Angular Contact Ball Bearings 7038 ACD/P4ADBA dimension drawing
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Features

Performance Features of 7038 ACD/P4ADBA Bearing

7038 ACD/P4ADBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

With a dynamic radial load capacity of 84,825 lbf, it handles demanding conditions with ease.
Its extra light preload (Class A) enhances precision, making it suitable for high-accuracy tasks.

The matched arrangement of two bearings (DB) provides balanced performance in paired setups.
Operating at speeds up to 11,000 rpm, it maintains reliability without compromising efficiency.

Its open design allows for easy lubrication, ensuring smooth operation across a temperature range of -30°C to 110°C.
The P4A tolerance class guarantees consistent performance in precision applications.

Application

Practical Applications of 7038 ACD/P4ADBA Bearing
In precision machine tools, 7038 ACD/P4ADBA Bearing excels due to its 25° contact angle and P4A tolerance, ensuring accurate spindle rotation. The matched DB arrangement provides stability for high-speed operations.

Where Is 7038 ACD/P4ADBA Bearing Used?
You’ll often find 7038 ACD/P4ADBA Bearing in aerospace equipment, where its extra-light preload reduces friction in critical components. The phenolic cage also handles thermal expansion well during flight cycles.

Built for Heavy-Duty Use: 7038 ACD/P4ADBA Bearing
This bearing supports large radial loads in industrial gearboxes, with its chrome steel construction lasting through continuous operation. The lubricated design maintains performance even at 11,000 rpm.

Automotive vs Aerospace: Applications of 7038 ACD/P4ADBA Bearing
While 7038 ACD/P4ADBA Bearing handles transmission loads in performance cars, it truly shines in aircraft landing gear systems. The metric dimensions make it versatile across both sectors.

Essential Roles of 7038 ACD/P4ADBA Bearing
In robotics, 7038 ACD/P4ADBA Bearing enables precise joint movements thanks to its angular contact design. The 190mm bore accommodates larger shafts commonly used in industrial automation arms.

Q&A

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