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Super Precision Angular Contact Ball Bearings 71816 ACD/P4DBC

Super Precision Angular Contact Ball Bearings 71816 ACD/P4DBC

The 71816 ACD/P4DBC is a super precision angular contact ball bearing with an 80mm bore and 100mm outer diameter, crafted from durable chrome steel. Its compact 20mm width and 25° contact angle make it ideal for handling combined loads.

This bearing set includes two matched units in a back-to-back arrangement, offering moderate preload for stable performance. It supports dynamic radial loads up to 4972 lbf and reaches speeds of 28,000 RPM when lubricated.

The phenolic cage reduces friction while maintaining strength, suitable for temperatures from -30°C to 110°C. With P4 tolerance class, it ensures high running accuracy for precision applications.

Perfect for machine tool spindles or high-speed robotics where exact alignment matters. Weighing 0.3kg per bearing, the set balances lightweight design with robust performance. Interchangeable with SKF equivalents for easy replacement.

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Product Parameters

  • Part Number 71816 ACD/P4DBC
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 80 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 100 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 20 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 35
  • Contact Angle 25°
  • Tolerance Class P4
  • 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 4972 lbf
  • Static Radial Load 7762 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 28000 rpm
  • Weight 0.3 kg
Super Precision Angular Contact Ball Bearings 71816 ACD/P4DBC dimension drawing
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Features

How Does 71816 ACD/P4DBC Bearing Reduce Friction?

71816 ACD/P4DBC Bearing features a 25° contact angle, optimised for smooth angular contact performance.
Its chrome steel rings and balls reduce friction, ensuring efficient operation even at high speeds.

The phenolic cage maintains ball alignment, minimising wear and extending the bearing’s lifespan.
With a maximum speed of 28,000 rpm, it delivers reliable performance in precision applications.

Moderate preload (Class C) enhances stability, making it suitable for demanding tasks.
The open design allows for easy lubrication, further reducing friction and maintenance needs.

Application

Practical Applications of 71816 ACD/P4DBC Bearing
In machine tools, 71816 ACD/P4DBC Bearing excels with its moderate preload and 25° contact angle, ensuring stability during high-speed operations. The matched arrangement of two bearings enhances radial load capacity, making it ideal for precision grinding spindles.

Where Is 71816 ACD/P4DBC Bearing Used?
You’ll often find 71816 ACD/P4DBC Bearing in robotics, where its phenolic cage reduces friction for smoother arm movements. Its P4 tolerance class also makes it a go-to for CNC machinery requiring tight precision.

Built for Heavy-Duty Use: 71816 ACD/P4DBC Bearing
This bearing handles demanding loads in industrial pumps, thanks to its chrome steel construction. The open design allows for easy relubrication, extending service life in harsh environments.

Automotive vs Aerospace: Applications of 71816 ACD/P4DBC Bearing
In automotive transmissions, 71816 ACD/P4DBC Bearing supports high-speed shafts with minimal vibration. For aerospace, its lightweight yet durable build suits auxiliary power units where reliability is key.

Q&A

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