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Super Precision Angular Contact Ball Bearings 71812 ACDGA/HCP4

Super Precision Angular Contact Ball Bearings 71812 ACDGA/HCP4

The 71812 ACDGA/HCP4 is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from chrome steel for durability. Its compact 10mm width and ceramic balls ensure smooth operation at high speeds up to 33,000 RPM.

Designed for angular contact loads, it handles radial loads up to 2858 lbf and comes pre-lubricated for easy use. The phenolic cage adds strength while keeping the weight light at just 0.088kg.

With a 25° contact angle and P4 tolerance class, it offers precise performance in demanding setups. Suitable for spindle applications or high-speed machinery where accuracy is key.

This bearing is interchangeable with SKF models and works in temperatures from -30°C to 110°C. Its universal matching design allows flexible arrangements like back-to-back or tandem mounting.

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Product Parameters

  • Part Number 71812 ACDGA/HCP4
  • 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 Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • 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 0.088 kg
Super Precision Angular Contact Ball Bearings 71812 ACDGA/HCP4 dimension drawing
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Features

Performance Features of 71812 ACDGA/HCP4 Bearing

71812 ACDGA/HCP4 Bearing is designed with a 25° contact angle, providing excellent radial and axial load capacity.
The chrome steel rings and ceramic balls ensure smooth operation even at high speeds up to 33,000 rpm.

Its phenolic cage maintains ball alignment, reducing friction and wear for long-lasting performance.
The extra light preload (Class A) enhances precision, making it ideal for high-accuracy applications.

With a temperature range of -30°C to 110°C, 71812 ACDGA/HCP4 Bearing performs reliably in various conditions.
The open design allows for easy lubrication, ensuring consistent performance over time.

Application

Industrial Uses of 71812 ACDGA/HCP4 Bearing
This bearing is commonly used in high-speed machine spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup. The P4 tolerance ensures precise alignment for demanding industrial applications.

Where Is 71812 ACDGA/HCP4 Bearing Used?
You’ll often find it in precision grinding machines, where its angular contact design handles both radial and axial loads smoothly. The extra-light preload makes it ideal for applications requiring minimal deflection.

Built for Heavy-Duty Use: 71812 ACDGA/HCP4 Bearing
Its chrome steel rings and ceramic balls provide durability in harsh environments like metalworking equipment. The open design allows for easy lubrication, extending service life in continuous operations.

Automotive vs Aerospace: Applications of 71812 ACDGA/HCP4 Bearing
In automotive systems, it supports high-speed components like turbochargers, while in aerospace, its precision suits navigation instruments. The universal matching feature adds flexibility for complex setups.

Perfect Fit for Automation: 71812 ACDGA/HCP4 Bearing
This bearing works well in robotic arms, where its low friction and high-speed capability improve movement accuracy. The temperature range ensures reliability in varied operating conditions.

Q&A

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