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Super Precision Angular Contact Ball Bearings 71908 ACD/DFCVQ253

Super Precision Angular Contact Ball Bearings 71908 ACD/DFCVQ253

The 71908 ACD/DFCVQ253 is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel. Its 25° contact angle and matched DF arrangement provide excellent stability under angular loads.

This bearing handles dynamic radial loads up to 4275 lbf and reaches speeds of 56,000 RPM, thanks to its phenolic cage and lubricated design. The P4A tolerance class ensures high precision for demanding applications.

Its open structure allows easy maintenance, while the moderate preload (Class C) offers smooth operation. The set includes two matched bearings for balanced performance.

Ideal for precision machinery like spindles or CNC equipment where accuracy and speed matter. Works in temperatures from -30°C to 110°C and weighs just 0.22kg per unit. Interchangeable with SKF bearings for convenient replacements.

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Product Parameters

  • Part Number 71908 ACD/DFCVQ253
  • 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 2 bearings >< DF
  • Number Of Bearings In Matched Set 2
  • 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 4275 lbf
  • Static Radial Load 3600 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 56000 rpm
  • Weight 0.22 kg
Super Precision Angular Contact Ball Bearings 71908 ACD/DFCVQ253 dimension drawing
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Features

Performance Features of 71908 ACD/DFCVQ253 Bearing

71908 ACD/DFCVQ253 Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and consistent performance under dynamic radial loads up to 4275 lbf.

The phenolic cage maintains ball alignment, reducing friction and wear during high-speed operation.
With a maximum speed of 56,000 rpm, it delivers reliable performance in precision tasks.

71908 ACD/DFCVQ253 Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its moderate preload (Class C) ensures smooth operation and extended service life.

The matched arrangement of two bearings enhances stability and load-bearing capacity.
Its P4A tolerance class guarantees precision, making it suitable for demanding applications.

Application

Common Applications of 71908 ACD/DFCVQ253 Bearing
71908 ACD/DFCVQ253 Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload and P4A tolerance class make it suitable for applications demanding tight tolerances.

In automotive systems, 71908 ACD/DFCVQ253 Bearing supports components like wheel hubs and transmissions, thanks to its balanced radial and axial load capacity. The phenolic cage material helps reduce friction and noise in high-speed scenarios.

For robotics, 71908 ACD/DFCVQ253 Bearing’s matched arrangement provides stability in articulated arms and joints. Its chrome steel construction ensures durability even in continuous operation environments.

In medical imaging devices, 71908 ACD/DFCVQ253 Bearing offers smooth and quiet operation, essential for precision diagnostics. The open seal design allows for easy lubrication maintenance, extending service life.

Q&A

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