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Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGD

Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGD

The 71908 ACD/P4ADGD is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from chrome steel for durability. It handles radial loads up to 4275 lbf and spins smoothly at speeds up to 41,000 RPM.

With a 25° contact angle and heavy preload, it offers stable performance under angular loads. The open design and phenolic cage ensure low friction and easy maintenance.

This bearing is part of a matched set, suitable for universal mounting in back-to-back, face-to-face, or tandem configurations. Ideal for high-precision applications like machine tools or spindle drives.

Weighing 0.22kg, it operates efficiently in temperatures from -30°C to 110°C. Compliant with P4A tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71908 ACD/P4ADGD
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Heavy / Class D
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4275 lbf
  • Static Radial Load 3600 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.22 kg
Super Precision Angular Contact Ball Bearings 71908 ACD/P4ADGD dimension drawing
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Features

Performance Features of 71908 ACD/P4ADGD Bearing

71908 ACD/P4ADGD Bearing is crafted with a 25° contact angle, ideal for handling combined radial and axial loads.
Its universal matching design allows flexible arrangements like back-to-back or face-to-face configurations.

The chrome steel rings and balls ensure durability, while the phenolic cage reduces friction.
With a dynamic radial load capacity of 4275 lbf, it performs reliably under heavy loads.

71908 ACD/P4ADGD Bearing operates smoothly at speeds up to 41,000 rpm, thanks to its precision P4A tolerance class.
The open seal design facilitates easy lubrication, enhancing its performance in various applications.

Designed for a temperature range of -30°C to 110°C, it adapts well to different working environments.
Its matched set of two bearings ensures consistent performance in demanding setups.

Application

Industrial Uses of 71908 ACD/P4ADGD Bearing
71908 ACD/P4ADGD Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The heavy preload and universal matching make it suitable for demanding industrial environments.

In automotive applications, 71908 ACD/P4ADGD Bearing supports components like wheel hubs and transmissions, handling both radial and axial loads efficiently. Its chrome steel construction provides durability under high-speed conditions.

For robotics and automation, 71908 ACD/P4ADGD Bearing offers reliable performance in robotic arms and CNC machines. The phenolic cage reduces friction, enhancing smooth operation in repetitive tasks.

Medical imaging devices benefit from 71908 ACD/P4ADGD Bearing’s precision, ensuring consistent performance in scanners and diagnostic equipment. The P4A tolerance class guarantees high accuracy for critical applications.

In consumer electronics, 71908 ACD/P4ADGD Bearing can be found in high-performance printers and optical drives. Its compact size and high-speed capability make it a practical choice for precision mechanisms.

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