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Super Precision Angular Contact Ball Bearings 71905 CD/P4ATBTC

Super Precision Angular Contact Ball Bearings 71905 CD/P4ATBTC

The 71905 CD/P4ATBTC is a super precision angular contact ball bearing with a 25mm bore and 42mm outer diameter, crafted from durable chrome steel. It features a 15° contact angle and comes in a set of three for matched arrangements.

This bearing handles radial loads up to 3285 lbf and spins smoothly at speeds up to 100,500 RPM. Its phenolic cage ensures quiet operation and long service life, even under moderate preload.

The open design allows for easy lubrication, making maintenance straightforward. It performs reliably in temperatures ranging from -30°C to 110°C.

Ideal for high-precision applications like machine tool spindles or high-speed robotics. Weighing just 0.13kg, it’s lightweight yet robust, and interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71905 CD/P4ATBTC
  • 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 27 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 18
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • 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 3285 lbf
  • Static Radial Load 2700 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 100500 rpm
  • Weight 0.13 kg
Super Precision Angular Contact Ball Bearings 71905 CD/P4ATBTC dimension drawing
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Features

Performance Features of 71905 CD/P4ATBTC Bearing

71905 CD/P4ATBTC Bearing is designed with a 15° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under dynamic radial loads up to 3285 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance at high speeds.
With a maximum speed of 100,500 rpm, it delivers reliable precision in demanding conditions.

Moderate preload (Class C) ensures stability, making it suitable for precision machinery.
The matched arrangement of three bearings (TBT) provides balanced load handling and extended service life.

Operating between -30°C to 110°C, 71905 CD/P4ATBTC Bearing performs consistently in varied environments.
Its P4A tolerance class guarantees high precision for critical applications.

Application

Key Fields for 71905 CD/P4ATBTC Bearing
71905 CD/P4ATBTC Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The moderate preload helps maintain stability during heavy cutting operations.

In robotics, 71905 CD/P4ATBTC Bearing supports articulated arms, providing smooth movement with minimal friction. Its phenolic cage reduces vibration, making it ideal for repetitive tasks.

For medical imaging devices, 71905 CD/P4ATBTC Bearing’s chrome steel construction offers durability and consistent performance. The open design allows for easy lubrication, extending service life in critical applications.

Automotive applications include electric motor systems, where 71905 CD/P4ATBTC Bearing handles both radial and axial loads efficiently. The metric sizing ensures compatibility with various European and Asian car models.

In 3D printers, 71905 CD/P4ATBTC Bearing ensures precise linear motion, contributing to high-quality prints. Its high-speed capability makes it suitable for rapid prototyping environments.

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