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Super Precision Angular Contact Ball Bearings 71940 ACDGC/P4A

Super Precision Angular Contact Ball Bearings 71940 ACDGC/P4A

The 71940 ACDGC/P4A is a super precision angular contact ball bearing with a 200mm bore and 280mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 44775 lbf and operates smoothly at speeds up to 6300 RPM.

With a 25° contact angle and moderate preload, it offers excellent stability for high-precision applications. The open design and phenolic cage ensure reliable performance and easy maintenance.

This bearing is suitable for temperatures from -30°C to 110°C and comes lubricated for immediate use. Its P4A tolerance class guarantees high accuracy, making it ideal for machine tools or spindle applications.

Weighing 6.1kg, it’s robust yet manageable for its size. It can be used in back-to-back, face-to-face, or tandem arrangements, offering flexibility in complex setups. Interchangeable with SKF bearings, it’s a practical choice for replacements.

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Product Parameters

  • Part Number 71940 ACDGC/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 200 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 280 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 38 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 25.4 mm
  • Ball Qty 26
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Moderate / Class C
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 44775 lbf
  • Static Radial Load 56250 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 6300 rpm
  • Weight 6.1 kg
Super Precision Angular Contact Ball Bearings 71940 ACDGC/P4A dimension drawing
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Features

Performance Features of 71940 ACDGC/P4A Bearing

71940 ACDGC/P4A Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability under high dynamic radial loads of up to 44775 lbf.

The phenolic cage maintains ball alignment, reducing friction and enhancing smooth operation.
With a maximum speed of 6,300 rpm, it balances precision and performance in demanding conditions.

71940 ACDGC/P4A Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its P4A tolerance class guarantees high precision, making it suitable for critical applications.

The open design allows for easy lubrication, ensuring long service life with minimal maintenance.
Weighing 6.1 kg, it offers a robust yet manageable solution for industrial use.

Application

Industrial Uses of 71940 ACDGC/P4A Bearing
71940 ACDGC/P4A Bearing is commonly used in high-precision machine tools, where its moderate preload and 25° contact angle ensure accurate spindle rotation. The open design and phenolic cage make it suitable for applications requiring minimal friction and heat generation.

Where Is 71940 ACDGC/P4A Bearing Used?
In automotive systems, 71940 ACDGC/P4A Bearing supports high-speed components like turbochargers and transmission shafts. Its chrome steel construction provides durability under heavy radial and angular loads.

Built for Heavy-Duty Use: 71940 ACDGC/P4A Bearing
For industrial robotics, 71940 ACDGC/P4A Bearing offers reliable performance in articulated arms and rotary tables. The P4A tolerance class ensures consistent precision in repetitive motions.

Automotive vs Aerospace: Applications of 71940 ACDGC/P4A Bearing
In aerospace, 71940 ACDGC/P4A Bearing is ideal for helicopter rotor systems, where its high dynamic load capacity is crucial. The metric sizing also makes it compatible with European and Asian machinery standards.

Perfect Fit for Automation: 71940 ACDGC/P4A Bearing
71940 ACDGC/P4A Bearing works well in automated production lines, particularly in CNC machines and 3D printers. Its universal matching feature allows for flexible configurations in tandem or back-to-back arrangements.

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