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Super Precision Angular Contact Ball Bearings 7208 ACD/P4AQBTC

Super Precision Angular Contact Ball Bearings 7208 ACD/P4AQBTC

The 7208 ACD/P4AQBTC is a super precision angular contact ball bearing with a 40mm bore and 80mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 19170 lbf and operates smoothly at speeds up to 41000 RPM.

With a 25° contact angle and moderate preload, this bearing offers excellent stability for angular loads. Its open design and phenolic cage ensure durability and easy maintenance in demanding conditions.

This set includes four matched bearings, ideal for applications requiring high precision, such as machine tools or spindle assemblies. It performs reliably in temperatures from -30°C to 110°C.

Weighing 1.49kg, it’s a robust choice for industrial use. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number 7208 ACD/P4AQBTC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 80 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 72 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 14
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 4 bearings <>>> QBT
  • 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 19170 lbf
  • Static Radial Load 20588 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 1.49 kg
Super Precision Angular Contact Ball Bearings 7208 ACD/P4AQBTC dimension drawing
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Features

Why Choose 7208 ACD/P4AQBTC Bearing for Precision Tasks?

7208 ACD/P4AQBTC Bearing features a 25° contact angle, ideal for handling combined radial and axial loads.

Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 19170 lbf, it performs reliably in high-precision applications.

The P4A tolerance class guarantees exceptional accuracy, making it suitable for demanding tasks.

Application

Industrial Uses of 7208 ACD/P4AQBTC Bearing
7208 ACD/P4AQBTC Bearing is commonly used in high-precision machine tools, where its angular contact design handles both radial and axial loads efficiently. The matched set of four bearings ensures stability in demanding operations like milling and grinding.

In automotive applications, 7208 ACD/P4AQBTC Bearing supports high-speed components such as wheel hubs and gearboxes. Its phenolic cage reduces friction, making it suitable for performance vehicles.

For robotics, 7208 ACD/P4AQBTC Bearing provides smooth motion in articulated arms and joints. The P4A tolerance class guarantees precision, which is essential for repeatable movements in automated systems.

Where Is 7208 ACD/P4AQBTC Bearing Used?
You’ll find 7208 ACD/P4AQBTC Bearing in medical imaging devices, where its low vibration and high-speed capabilities are crucial. The chrome steel construction ensures long-term reliability in sterile environments.

In aerospace, 7208 ACD/P4AQBTC Bearing is used in flight control systems due to its ability to handle moderate preloads. The open design allows for easy lubrication, extending service intervals.

Built for Heavy-Duty Use: 7208 ACD/P4AQBTC Bearing
7208 ACD/P4AQBTC Bearing excels in industrial pumps and compressors, where its dynamic load capacity keeps equipment running smoothly. The 25° contact angle optimises load distribution for longer life.

For consumer electronics, 7208 ACD/P4AQBTC Bearing is found in high-end printers and scanners. Its phenolic cage minimises noise, making it ideal for office environments.

Automotive vs Aerospace: Applications of 7208 ACD/P4AQBTC Bearing
In cars, 7208 ACD/P4AQBTC Bearing is often used in turbochargers for its high-speed tolerance. The matched set configuration ensures balanced performance under extreme conditions.

For aircraft, 7208 ACD/P4AQBTC Bearing is preferred in landing gear systems due to its precision and durability. The P4A class tolerance meets stringent aviation standards.

Q&A

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