+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Super Precision Angular Contact Ball Bearings 71938 ACDGB/P4A

Super Precision Angular Contact Ball Bearings 71938 ACDGB/P4A

The 71938 ACDGB/P4A is a super precision angular contact ball bearing with a 190mm bore and 260mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle efficiently handles both radial and axial loads, making it versatile for demanding applications.

Designed for light preload (Class B), it operates smoothly at speeds up to 11,000 RPM. The open seal allows easy lubrication, while the phenolic cage ensures quiet and durable performance.

With a dynamic radial load capacity of 36,675 lbf, it’s built to withstand heavy use. The bearing works reliably in temperatures from -30°C to 110°C, suitable for various industrial environments.

Ideal for machine tools or high-precision equipment, this model is interchangeable with SKF bearings. Weighing 4.35kg, it’s robust yet manageable for its size. Compliant with P4A tolerance class for exceptional accuracy.

It can be arranged back-to-back, face-to-face, or tandem, offering flexibility in installation. The universal matching feature ensures compatibility in matched sets of three.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number 71938 ACDGB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 190 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 260 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 33 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 22.225 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 36675 lbf
  • Static Radial Load 46800 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 11000 rpm
  • Weight 4.35 kg
Super Precision Angular Contact Ball Bearings 71938 ACDGB/P4A dimension drawing
Download DWG Download PDF

Features

Performance Features of 71938 ACDGB/P4A Bearing

71938 ACDGB/P4A Bearing is crafted with chrome steel rings and balls, ensuring durability and precision.
Its 25° contact angle allows for efficient handling of combined radial and axial loads.
The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a dynamic radial load capacity of 36675 lbf, it excels in high-demand applications.

How Is 71938 ACDGB/P4A Bearing Engineered for Reliability?

71938 ACDGB/P4A Bearing features a P4A tolerance class, providing exceptional precision and consistency.
The open design and lubrication ensure smooth operation even at high speeds up to 11,000 rpm.
Its chrome steel construction resists wear, extending the bearing’s service life.
The light preload (Class B) enhances stability and reduces vibration during operation.

Built for Reliability: 71938 ACDGB/P4A Bearing

71938 ACDGB/P4A Bearing’s chrome steel components offer high resistance to wear and fatigue.
Its static radial load capacity of 46800 lbf ensures reliable performance under heavy loads.
The bearing operates efficiently within a temperature range of -30°C to 110°C.
With 28 balls of 22.225 mm diameter, it provides balanced load distribution and smooth rotation.

Steel vs Ceramic Bearings: Strengths of 71938 ACDGB/P4A Bearing

71938 ACDGB/P4A Bearing uses chrome steel for both rings and balls, ensuring robust performance.
The phenolic cage material reduces friction and noise, making it suitable for precision applications.
Its universal matching capability allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.
The bearing’s high-speed capability (11,000 rpm) and precision make it a reliable choice for demanding tasks.

Application

Essential Roles of 71938 ACDGB/P4A Bearing
71938 ACDGB/P4A Bearing is commonly used in high-precision machine tools, where its 25° contact angle ensures accurate radial and axial load distribution. The phenolic cage reduces friction, making it suitable for high-speed operations.

In aerospace applications, 71938 ACDGB/P4A Bearing supports critical components like turbine shafts, thanks to its P4A tolerance class and chrome steel construction. Its lightweight design also helps reduce overall system weight.

For automation systems, 71938 ACDGB/P4A Bearing excels in robotic arms and CNC machinery, where consistent performance is key. The open design allows for easy lubrication, extending service life in demanding environments.

Medical imaging devices benefit from 71938 ACDGB/P4A Bearing’s precision and reliability, ensuring smooth operation in sensitive equipment. The temperature range of -30°C to 110°C makes it versatile for various clinical settings.

In electric motors, 71938 ACDGB/P4A Bearing handles high-speed rotations with minimal vibration, enhancing efficiency. Its universal matching capability simplifies installation in complex assemblies.

Q&A

SEND INQUIRY