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Super Precision Angular Contact Ball Bearings 71809 CD/P4DGB

Super Precision Angular Contact Ball Bearings 71809 CD/P4DGB

The 71809 CD/P4DGB is a super precision angular contact ball bearing with a 45mm bore and 58mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and is designed for light preload, making it suitable for high-speed applications.

With a dynamic radial load capacity of 1784 lbf and a maximum speed of 46,000 RPM, this bearing offers reliable performance. Its open design and phenolic cage ensure smooth operation and durability under various conditions.

The bearing comes in a matched set of two, allowing for universal matching in back-to-back, face-to-face, or tandem arrangements. This flexibility makes it ideal for precision machinery like spindles or CNC equipment.

Weighing just 0.078kg, it’s lightweight yet robust, operating efficiently in temperatures from -30°C to 110°C. Compliant with P4 tolerance standards, it ensures high accuracy and interchangeability with SKF bearings.

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Product Parameters

  • Part Number 71809 CD/P4DGB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 58 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 14 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 31
  • Contact Angle 15°
  • Tolerance Class P4
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1784 lbf
  • Static Radial Load 2385 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 46000 rpm
  • Weight 0.078 kg
Super Precision Angular Contact Ball Bearings 71809 CD/P4DGB dimension drawing
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Features

Why Choose 71809 CD/P4DGB Bearing for Precision Tasks?

71809 CD/P4DGB Bearing is crafted with a 15° contact angle, ideal for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage minimises friction for smoother operation.

With a dynamic radial load capacity of 1784 lbf, it handles demanding tasks with ease.
The P4 tolerance class guarantees exceptional accuracy, making it suitable for precision instruments.

Operating at speeds up to 46,000 rpm, it balances performance and reliability.
Its universal matching design allows flexible arrangements like back-to-back or face-to-face configurations.

Application

Key Fields for 71809 CD/P4DGB Bearing
71809 CD/P4DGB Bearing is widely used in machine tool spindles, where its super precision and angular contact design ensure accurate performance. The light preload and universal matching make it suitable for high-speed operations.

In robotics, 71809 CD/P4DGB Bearing provides smooth motion control for articulated arms and joints. Its phenolic cage reduces friction, enhancing efficiency in repetitive tasks.

For aerospace applications, 71809 CD/P4DGB Bearing handles radial and axial loads in avionics systems. The P4 tolerance class guarantees reliability in demanding conditions.

Where Is 71809 CD/P4DGB Bearing Used?
You’ll often find 71809 CD/P4DGB Bearing in dental drills, where its high-speed capability and precision are essential. The chrome steel construction ensures durability in sterilised environments.

In packaging machinery, 71809 CD/P4DGB Bearing supports rotary tables and indexing systems. Its open design allows for easy lubrication, reducing downtime.

Optimized for Performance: 71809 CD/P4DGB Bearing
71809 CD/P4DGB Bearing excels in CNC lathes, maintaining rigidity during heavy cutting operations. The 15° contact angle distributes loads evenly for longer service life.

For optical equipment, 71809 CD/P4DGB Bearing ensures minimal vibration in lens positioning systems. The matched set configuration provides consistent alignment.

Automotive vs Aerospace: Applications of 71809 CD/P4DGB Bearing
In automotive transmissions, 71809 CD/P4DGB Bearing handles high RPMs with minimal heat generation. The metric sizing fits compact designs common in modern vehicles.

For aerospace actuators, 71809 CD/P4DGB Bearing offers reliable performance under variable loads. Its temperature range suits both ground and flight conditions.

Q&A

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