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Super Precision Angular Contact Ball Bearings 71812 ACD/P4TBTA

Super Precision Angular Contact Ball Bearings 71812 ACD/P4TBTA

The 71812 ACD/P4TBTA is a super precision angular contact ball bearing with a 60mm bore and 78mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 6210 lbf and spins smoothly at speeds up to 35,000 RPM.

Its 25° contact angle and matched set of three bearings (arranged > TBT) provide excellent stability for high-precision applications. The phenolic cage ensures quiet operation and long service life.

This bearing comes pre-lubricated and operates in temperatures from -30°C to 110°C. With a P4 tolerance class, it offers exceptional accuracy for demanding machinery.

Ideal for spindle drives or high-speed machining tools where precision is crucial. Weighing just 0.3kg, it’s lightweight yet robust for its size. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71812 ACD/P4TBTA
  • 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 30 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 3 bearings <>> TBT
  • Number Of Bearings In Matched Set 3
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 6210 lbf
  • Static Radial Load 9000 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 35000 rpm
  • Weight 0.3 kg
Super Precision Angular Contact Ball Bearings 71812 ACD/P4TBTA dimension drawing
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Features

Why Choose 71812 ACD/P4TBTA Bearing for Precision Tasks?

71812 ACD/P4TBTA Bearing features a 25° contact angle, ideal for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.

With a dynamic radial load capacity of 6210 lbf, it performs reliably in high-speed applications.
The P4 tolerance class guarantees precision, making it suitable for demanding tasks.

Operating at speeds up to 35,000 rpm, it maintains efficiency without compromising performance.
Its matched arrangement of three bearings ensures stability and balanced load distribution.

Application

Industrial Uses of 71812 ACD/P4TBTA Bearing
71812 ACD/P4TBTA Bearing is commonly used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The phenolic cage reduces friction, making it suitable for continuous operation in demanding environments.

In automotive applications, 71812 ACD/P4TBTA Bearing supports gearbox systems, providing stability under radial and axial loads. Its extra light preload class enhances performance in high-speed scenarios, common in modern vehicles.

For medical imaging devices, 71812 ACD/P4TBTA Bearing’s P4 tolerance class guarantees smooth, vibration-free operation. The chrome steel construction ensures longevity, even in sterilisation processes requiring frequent high-temperature exposure.

Where Is 71812 ACD/P4TBTA Bearing Used?
You’ll find 71812 ACD/P4TBTA Bearing in robotics, particularly in articulated arms requiring precise movement. Its matched arrangement of three bearings offers balanced load distribution for repetitive tasks.

In 3D printing equipment, 71812 ACD/P4TBTA Bearing’s high-speed capability ensures consistent layer deposition. The open seal type allows for easy lubrication, reducing downtime in production settings.

Built for Heavy-Duty Use: 71812 ACD/P4TBTA Bearing
71812 ACD/P4TBTA Bearing handles heavy loads in industrial pumps, where its dynamic radial load capacity prevents premature wear. The 25° contact angle optimises performance under combined loads.

For conveyor systems, 71812 ACD/P4TBTA Bearing’s phenolic cage resists dust buildup, maintaining efficiency in harsh conditions. Its metric sizing simplifies replacement in European-manufactured machinery.

Automotive vs Aerospace: Applications of 71812 ACD/P4TBTA Bearing
In automotive turbochargers, 71812 ACD/P4TBTA Bearing withstands rapid acceleration with minimal heat buildup. The lubricated design ensures reliability across temperature extremes.

Aerospace actuators benefit from 71812 ACD/P4TBTA Bearing’s P4 precision during flight adjustments. Its lightweight construction meets strict aircraft component weight requirements without compromising strength.

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