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Super Precision Angular Contact Ball Bearings 71909 CD/P4ADGA

Super Precision Angular Contact Ball Bearings 71909 CD/P4ADGA

The 71909 CD/P4ADGA 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 15° contact angle and is lubricated for smooth operation at speeds up to 41,000 RPM.

This bearing handles radial loads up to 4770 lbf and comes in a universal matched set of two, allowing flexible arrangements like back-to-back or face-to-face. Its phenolic cage ensures durability and reduced friction.

With a tolerance class of P4A, it offers exceptional accuracy for demanding applications. Ideal for high-speed machinery, spindles, or precision tools where reliability is key.

Weighing just 0.26kg, it’s lightweight yet robust, suitable for temperatures from -30°C to 110°C. Interchangeable with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 71909 CD/P4ADGA
  • 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 24 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 23
  • Contact Angle 15°
  • Tolerance Class P4A
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 4770 lbf
  • Static Radial Load 4275 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 41000 rpm
  • Weight 0.26 kg
  • Price（$） 15.525
Super Precision Angular Contact Ball Bearings 71909 CD/P4ADGA dimension drawing
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Features

Performance Features of 71909 CD/P4ADGA Bearing

71909 CD/P4ADGA Bearing is designed with a 15° contact angle, optimising load distribution for precision applications.

Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 4770 lbf, it handles demanding conditions with ease.

The bearing’s universal matching design allows flexible arrangement in back-to-back, face-to-face, or tandem configurations.

Application

Common Applications of 71909 CD/P4ADGA Bearing
71909 CD/P4ADGA Bearing is widely 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 CD/P4ADGA Bearing provides smooth motion control for articulated arms and joints. Its universal matching feature allows flexible installation in various configurations.

For aerospace applications, 71909 CD/P4ADGA Bearing handles both radial and axial loads in components like landing gear systems. The P4A tolerance class guarantees consistent performance under demanding conditions.

Where Is 71909 CD/P4ADGA Bearing Used?
You’ll often find 71909 CD/P4ADGA Bearing in dental drills, where its quiet operation and precision are essential. The chrome steel construction ensures durability in sterile environments.

In packaging machinery, 71909 CD/P4ADGA Bearing supports high-speed conveyor systems reliably. The extra light preload helps maintain efficiency during continuous operation.

Built for Heavy-Duty Use: 71909 CD/P4ADGA Bearing
71909 CD/P4ADGA Bearing excels in wind turbine yaw systems, handling variable loads with stability. Its 41,000 rpm maximum speed rating makes it ideal for renewable energy applications.

The bearing’s 15° contact angle provides excellent load distribution in pump systems. This design helps extend service life even in corrosive fluid handling environments.

Automotive vs Aerospace: Applications of 71909 CD/P4ADGA Bearing
In automotive turbochargers, 71909 CD/P4ADGA Bearing withstands extreme temperatures and rotational speeds. The lubricated design ensures consistent performance under engine stress.

For aircraft hydraulic systems, this bearing’s precision tolerances meet strict aviation requirements. The matched set configuration simplifies maintenance in critical flight components.

Q&A

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