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Super Precision Angular Contact Ball Bearings 71909 ACD/P4ATBTA

Super Precision Angular Contact Ball Bearings 71909 ACD/P4ATBTA

The 71909 ACD/P4ATBTA is a super precision angular contact ball bearing with a 45mm bore and 68mm outer diameter, crafted from high-quality chrome steel. It features a 25° contact angle and comes in a matched set of three bearings for balanced performance.

This bearing handles radial loads up to 5962 lbf and can spin at impressive speeds up to 41000 RPM. Its phenolic cage ensures smooth operation and durability under high-speed conditions.

The open design allows for easy lubrication, while the extra light preload ensures precise movement. Ideal for applications like machine tool spindles or high-precision rotary systems where accuracy is key.

With a temperature range of -30°C to 110°C and weighing just 0.39kg, it’s both robust and lightweight. Compliant with P4A tolerance class for exceptional precision.

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Product Parameters

  • Part Number 71909 ACD/P4ATBTA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 36 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • Contact Angle 25°
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 5962 lbf
  • Static Radial Load 6075 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.39 kg
Super Precision Angular Contact Ball Bearings 71909 ACD/P4ATBTA dimension drawing
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Features

How Is 71909 ACD/P4ATBTA Bearing Engineered for Reliability?

71909 ACD/P4ATBTA Bearing features a 25° contact angle, optimised for precision angular contact applications.
The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 5962 lbf.

Its phenolic cage ensures smooth operation, even at high speeds of 41,000 rpm.
The matched arrangement of three bearings provides stability and balanced load distribution.

With a preload class of extra light, 71909 ACD/P4ATBTA Bearing delivers consistent performance.
The open design allows for easy lubrication, maintaining efficiency over time.

Designed for temperatures from -30°C to 110°C, it performs reliably in varied conditions.
The P4A tolerance class ensures high precision, making it suitable for demanding tasks.

Application

Where Is 71909 ACD/P4ATBTA Bearing Used?
71909 ACD/P4ATBTA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for high-speed operations.

In robotics, 71909 ACD/P4ATBTA Bearing supports articulated arms, providing smooth movement and long service life. Its matched arrangement of three bearings enhances stability in dynamic applications.

For medical imaging devices, 71909 ACD/P4ATBTA Bearing’s P4A tolerance class delivers the precision needed for consistent performance. The chrome steel construction also resists wear in demanding environments.

Automotive applications like electric vehicle motors benefit from 71909 ACD/P4ATBTA Bearing’s extra light preload, reducing energy loss. Its metric sizing ensures compatibility with a range of international designs.

Q&A

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