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Super Precision Angular Contact Ball Bearings 71812 ACDGB/P4

Super Precision Angular Contact Ball Bearings 71812 ACDGB/P4

The 71812 ACDGB/P4 is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from durable chrome steel. Its compact 10mm width makes it suitable for tight spaces while maintaining high performance.

With a 25° contact angle, it handles both radial and thrust loads efficiently, supporting up to 2858 lbf dynamically. It spins smoothly at speeds up to 33,000 RPM, ideal for high-speed applications.

The open design and phenolic cage ensure low friction and easy maintenance. It operates reliably in temperatures from -30°C to 110°C, making it versatile for various environments.

This bearing is part of a universal matching set, allowing configurations like back-to-back or face-to-face. Perfect for precision machinery, spindles, or high-speed tools where accuracy is key.

Weighing just 0.1kg, it’s lightweight yet robust, meeting P4 tolerance standards for exceptional precision. Interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number 71812 ACDGB/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 60 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 78 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 10 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 5.556 mm
  • Ball Qty 28
  • Contact Angle 25°
  • Tolerance Class P4
  • 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 Light / Class B
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2858 lbf
  • Static Radial Load 3015 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 33000 rpm
  • Weight 0.1 kg
Super Precision Angular Contact Ball Bearings 71812 ACDGB/P4 dimension drawing
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Features

Performance Features of 71812 ACDGB/P4 Bearing

71812 ACDGB/P4 Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction for smoother operation.

With a dynamic radial load capacity of 2858 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees high precision, making it suitable for critical applications.

Operating at speeds up to 33,000 rpm, it balances performance and longevity.
Its universal matching capability allows flexible configurations like back-to-back or tandem arrangements.

Application

Industrial Uses of 71812 ACDGB/P4 Bearing
71812 ACDGB/P4 Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The light preload and P4 tolerance class make it ideal for applications demanding minimal vibration.

Where Is 71812 ACDGB/P4 Bearing Used?
You’ll often find 71812 ACDGB/P4 Bearing in automotive transmissions, supporting smooth gear shifts under radial and axial loads. Its phenolic cage offers quiet operation, perfect for reducing noise in passenger vehicles.

Optimized for Performance: 71812 ACDGB/P4 Bearing
In robotics, 71812 ACDGB/P4 Bearing excels in articulated arms, providing reliable movement with its 25° contact angle. The chrome steel construction ensures long service life even in continuous operation.

Automotive vs Aerospace: Applications of 71812 ACDGB/P4 Bearing
While 71812 ACDGB/P4 Bearing is popular in car steering systems, it also suits aerospace actuators due to its high-speed capability. The metric sizing and universal matching options add to its versatility.

Essential Roles of 71812 ACDGB/P4 Bearing
For medical imaging devices, 71812 ACDGB/P4 Bearing delivers precision motion control with minimal friction. Its temperature range from -30°C to 110°C ensures stability in various clinical environments.

Q&A

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