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Super Precision Angular Contact Ball Bearings 71910 ACD/P4ADBC

Super Precision Angular Contact Ball Bearings 71910 ACD/P4ADBC

The 71910 ACD/P4ADBC is a super precision angular contact ball bearing with a 50mm bore and 72mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 4680 lbf and operates smoothly at speeds up to 46,000 RPM.

With a 25° contact angle and moderate preload, it offers excellent stability for angular contact applications. The open design and phenolic cage ensure durability and easy maintenance.

This matched set of two bearings (DB arrangement) is ideal for high-precision machinery like spindles or CNC tools. It performs reliably in temperatures from -30°C to 110°C.

Weighing just 0.26kg, it’s lightweight yet robust, meeting P4A tolerance standards for precision engineering. Compatible with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71910 ACD/P4ADBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 50 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 72 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 25
  • 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 4680 lbf
  • Static Radial Load 4410 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.26 kg
Super Precision Angular Contact Ball Bearings 71910 ACD/P4ADBC dimension drawing
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Features

Performance Features of 71910 ACD/P4ADBC Bearing

71910 ACD/P4ADBC Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.

The matched arrangement of two bearings provides balanced performance, suitable for high-speed operations up to 46,000 rpm.
With a dynamic radial load capacity of 4680 lbf, it handles demanding conditions reliably.

71910 ACD/P4ADBC Bearing operates smoothly within a temperature range of -30°C to 110°C, ensuring versatility.
Its precision P4A tolerance class guarantees consistent performance in critical applications.

Application

Industrial Uses of 71910 ACD/P4ADBC Bearing
71910 ACD/P4ADBC Bearing is commonly 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 control.

In robotics, 71910 ACD/P4ADBC Bearing provides smooth motion in articulated arms, thanks to its matched arrangement and phenolic cage. The high-speed capability (up to 46,000 rpm) allows for efficient operation in automated systems.

For aerospace components, 71910 ACD/P4ADBC Bearing’s chrome steel construction handles both radial and axial loads reliably. Its temperature range (-30°C to 110°C) ensures performance in varying environmental conditions.

Where Is 71910 ACD/P4ADBC Bearing Used?
You’ll find 71910 ACD/P4ADBC Bearing in dental drills, where its precision and speed are crucial for smooth operation. The open design simplifies lubrication, extending service life in medical settings.

In electric motors, 71910 ACD/P4ADBC Bearing supports high-speed shafts with minimal vibration. The 25° contact angle optimises load distribution, reducing wear over time.

Built for Heavy-Duty Use: 71910 ACD/P4ADBC Bearing
71910 ACD/P4ADBC Bearing excels in pump systems, handling both radial and thrust loads efficiently. Its phenolic cage resists corrosion, making it ideal for harsh industrial environments.

For CNC machinery, 71910 ACD/P4ADBC Bearing’s matched set ensures consistent alignment during high-precision cutting. The dynamic radial load capacity (4680 lbf) supports demanding operations.

Automotive vs Aerospace: Applications of 71910 ACD/P4ADBC Bearing
In automotive transmissions, 71910 ACD/P4ADBC Bearing manages angular loads while maintaining smooth gear shifts. The metric sizing fits seamlessly into European and Asian vehicle designs.

For aircraft landing gear, 71910 ACD/P4ADBC Bearing’s temperature stability and load capacity provide reliable performance. The P4A tolerance class meets stringent aerospace precision requirements.

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