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Super Precision Angular Contact Ball Bearings 71905 ACD/P4ADBCGMM

Super Precision Angular Contact Ball Bearings 71905 ACD/P4ADBCGMM

The 71905 ACD/P4ADBCGMM is a super precision angular contact ball bearing with a 25mm bore and 42mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2340 lbf and reaches speeds of 53000 RPM, making it suitable for high-performance applications.

With a 25° contact angle and moderate preload, this bearing offers smooth operation and stability. The open design and phenolic cage ensure easy maintenance and long service life, even in temperatures from -30°C to 110°C.

This matched set of two bearings in a DB arrangement provides balanced load distribution. Ideal for precision machinery like spindles or CNC equipment where accuracy and reliability are key.

Weighing just 0.084kg, it’s lightweight yet robust. Compliant with P4A tolerance standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71905 ACD/P4ADBCGMM
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 25 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 42 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 18
  • 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 Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2340 lbf
  • Static Radial Load 1721 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 53000 rpm
  • Weight 0.084 kg
Super Precision Angular Contact Ball Bearings 71905 ACD/P4ADBCGMM dimension drawing
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Features

Why Choose 71905 ACD/P4ADBCGMM Bearing for Precision Tasks?

71905 ACD/P4ADBCGMM Bearing features a 25° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 2340 lbf, it handles demanding tasks reliably.
The matched arrangement of two bearings enhances stability and load distribution.

Operating at speeds up to 53,000 rpm, it balances performance and longevity.
Its P4A tolerance class guarantees precision, making it ideal for critical applications.

The open design allows for easy lubrication, ensuring consistent performance.
Its compact size (25 mm×42 mm×18 mm) makes it suitable for space-constrained installations.

Application

How Does 71905 ACD/P4ADBCGMM Bearing Improve Performance?
71905 ACD/P4ADBCGMM Bearing is widely used in high-speed machine tools, where its 25° contact angle ensures stable rotation under heavy loads. The matched arrangement of two bearings enhances rigidity, making it ideal for precision applications.

In robotics, 71905 ACD/P4ADBCGMM Bearing supports smooth movement in articulated arms, thanks to its phenolic cage reducing friction. The moderate preload helps maintain accuracy even during rapid directional changes.

For medical imaging devices, 71905 ACD/P4ADBCGMM Bearing’s P4A tolerance class guarantees minimal vibration, crucial for clear scans. Its chrome steel construction also ensures longevity in sterile environments.

Automotive applications like electric power steering benefit from 71905 ACD/P4ADBCGMM Bearing’s grease lubrication, which reduces maintenance needs. The metric dimensions make it easy to integrate into various vehicle designs.

Q&A

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