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Super Precision Angular Contact Ball Bearings 71804 ACD/P4

Super Precision Angular Contact Ball Bearings 71804 ACD/P4

The 71804 ACD/P4 is a super precision angular contact ball bearing with a 20mm bore and 32mm outer diameter, crafted from high-quality chrome steel. It handles radial loads up to 819 lbf and operates smoothly at speeds up to 63,000 RPM.

With a 25° contact angle and phenolic cage, it offers excellent stability and low friction. The open design allows for easy lubrication, ensuring long service life.

This bearing is ideal for high-precision applications like machine tool spindles or dental equipment. Its P4 tolerance class ensures reliable performance in demanding conditions.

Weighing just 18 grams, it’s lightweight yet durable. Suitable for temperatures from -30°C to 110°C, making it versatile for various industrial uses.

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Product Parameters

  • Part Number 71804 ACD/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.005mm to 0
  • Outer Dia 32 mm
  • Outer Dia Tolerance -0.006mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 17
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 819 lbf
  • Static Radial Load 562 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 63000 rpm
  • Weight 0.018 kg
  • Price（$） 22.284
Super Precision Angular Contact Ball Bearings 71804 ACD/P4 dimension drawing
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Features

Performance Features of 71804 ACD/P4 Bearing

71804 ACD/P4 Bearing features a 25° contact angle, optimised for handling combined radial and axial loads.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and wear.
With a dynamic radial load capacity of 819 lbf, it performs reliably in high-speed applications.
The P4 tolerance class guarantees precision, making it suitable for demanding tasks.

Application

Practical Applications of 71804 ACD/P4 Bearing
71804 ACD/P4 Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The open seal type allows for efficient lubrication, extending its lifespan in demanding conditions.

In robotics, 71804 ACD/P4 Bearing supports smooth motion in articulated arms and joints. Its phenolic cage reduces friction, making it ideal for repetitive movements.

For medical imaging devices, 71804 ACD/P4 Bearing’s P4 tolerance class provides the necessary accuracy. The chrome steel construction ensures reliability in critical healthcare applications.

Where Is 71804 ACD/P4 Bearing Used?
71804 ACD/P4 Bearing fits well in precision instruments like optical alignment systems. Its small size and high-speed capability make it a versatile choice for compact designs.

In automotive steering systems, 71804 ACD/P4 Bearing handles angular loads effectively. The lubricated design ensures consistent performance even under continuous use.

Built for Heavy-Duty Use: 71804 ACD/P4 Bearing
71804 ACD/P4 Bearing excels in industrial pumps, where its dynamic radial load capacity is crucial. The 25° contact angle helps manage combined loads efficiently.

For CNC machining centres, 71804 ACD/P4 Bearing offers stability during high-speed operations. Its ABEC-7 tolerance ensures minimal vibration for fine finishes.

Light-Duty vs Heavy-Duty: Best Uses for 71804 ACD/P4 Bearing
In light-duty applications like dental drills, 71804 ACD/P4 Bearing provides quiet and precise rotation. The phenolic cage contributes to noise reduction.

For heavy-duty scenarios such as aerospace actuators, 71804 ACD/P4 Bearing’s high-speed rating and load capacity are key advantages. Its temperature range suits various operational environments.

Q&A

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