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Super Precision Angular Contact Ball Bearings 71804 ACDGC/P4

Super Precision Angular Contact Ball Bearings 71804 ACDGC/P4

The 71804 ACDGC/P4 is a super precision angular contact ball bearing with a 20mm bore and 32mm outer diameter, crafted from durable chrome steel. It handles moderate preload and angular contact loads up to 819 lbf, spinning smoothly at speeds up to 121,000 RPM.

Its open design and phenolic cage ensure reliable performance, while the 25° contact angle provides stability under radial loads. The bearing operates efficiently in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings and comes in sets of three for versatile mounting options (back-to-back, face-to-face, or tandem). Ideal for high-precision applications like machine tools or spindle drives.

Weighing just 0.018kg, it’s lightweight yet robust for its size, meeting P4 tolerance standards for exceptional accuracy.

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Product Parameters

  • Part Number 71804 ACDGC/P4
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 20 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 32 mm
  • Outer Dia Tolerance -0.004mm 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
  • 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 819 lbf
  • Static Radial Load 562 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 121000 rpm
  • Weight 0.018 kg
Super Precision Angular Contact Ball Bearings 71804 ACDGC/P4 dimension drawing
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Features

Performance Features of 71804 ACDGC/P4 Bearing

71804 ACDGC/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 819 lbf, it handles demanding conditions reliably.
The P4 tolerance class guarantees high precision, making it suitable for critical tasks.

Operating at speeds up to 121,000 rpm, it balances performance and efficiency.
Its moderate preload (Class C) enhances stability without compromising flexibility.

The open design allows easy lubrication, extending service life.
Its compact size (20 mm×32 mm×7 mm) makes it ideal for space-constrained applications.

Application

Key Fields for 71804 ACDGC/P4 Bearing
71804 ACDGC/P4 Bearing is commonly used in high-speed machine tools, where its precision and moderate preload ensure accurate spindle performance. The open design allows for efficient lubrication, extending service life in demanding conditions.

In robotics, 71804 ACDGC/P4 Bearing supports articulated arms, providing smooth motion control due to its angular contact design. Its phenolic cage reduces friction, making it ideal for repetitive movements.

For optical equipment like lens positioning systems, 71804 ACDGC/P4 Bearing offers reliable stability with minimal vibration. The P4 tolerance class ensures consistent alignment, crucial for high-resolution imaging.

Automotive applications include electric vehicle motors, where 71804 ACDGC/P4 Bearing handles combined radial and axial loads efficiently. Its chrome steel construction withstands high RPMs without compromising durability.

Q&A

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