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Super Precision Angular Contact Ball Bearings 71913 CD/P4ATBTB

Super Precision Angular Contact Ball Bearings 71913 CD/P4ATBTB

The 71913 CD/P4ATBTB is a super precision angular contact ball bearing with a 65mm bore and 90mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 9945 lbf and operates smoothly at speeds up to 31,000 RPM.

Its 15° contact angle and matched set of three bearings (arranged TBT) provide excellent stability for high-precision applications. The phenolic cage ensures quiet and efficient performance.

Designed for light preload (Class B), this bearing is ideal for machine tools or spindle systems where accuracy is key. It works in temperatures from -30°C to 110°C and comes pre-lubricated for easy use.

Weighing 0.63kg, it’s a robust yet manageable choice for demanding setups. Interchangeable with SKF bearings, it’s a reliable option for replacements or upgrades.

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Product Parameters

  • Part Number 71913 CD/P4ATBTB
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 65 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 90 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 39 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 7.938 mm
  • Ball Qty 26
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 9945 lbf
  • Static Radial Load 11475 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 31000 rpm
  • Weight 0.63 kg
Super Precision Angular Contact Ball Bearings 71913 CD/P4ATBTB dimension drawing
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Features

Performance Features of 71913 CD/P4ATBTB Bearing

71913 CD/P4ATBTB Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.
Its chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 9945 lbf.

The phenolic cage ensures smooth operation at high speeds, reaching up to 31,000 rpm.
With a matched arrangement of three bearings, it provides stability in angular contact scenarios.

71913 CD/P4ATBTB Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its light preload design reduces friction, extending service life in demanding conditions.

The open seal type allows for easy lubrication, maintaining consistent performance.
Precision tolerances (P4A class) ensure reliable operation in high-accuracy applications.

Application

Practical Applications of 71913 CD/P4ATBTB Bearing
71913 CD/P4ATBTB Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4A tolerance class make it ideal for applications demanding minimal vibration.

In automotive systems, 71913 CD/P4ATBTB Bearing supports high-speed components like turbochargers and transmission shafts. Its phenolic cage provides stability under rapid acceleration and deceleration.

For medical imaging devices, 71913 CD/P4ATBTB Bearing’s chrome steel construction offers reliable performance in sensitive equipment. The matched arrangement of three bearings enhances load distribution for smoother operation.

In robotics, 71913 CD/P4ATBTB Bearing is often found in articulated arms, where precision and durability are key. The open design allows for easy lubrication, extending service life in continuous-use scenarios.

Q&A

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