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Super Precision Angular Contact Ball Bearings 71805 ACD/HCP4DGA

Super Precision Angular Contact Ball Bearings 71805 ACD/HCP4DGA

The 71805 ACD/HCP4DGA is a super precision angular contact ball bearing with a 25mm bore and 37mm outer diameter, crafted from chrome steel for durability. It features a 25° contact angle and ceramic balls for smooth operation at high speeds up to 85,000 RPM.

Its open design and phenolic cage ensure low friction and easy maintenance, while the extra light preload (Class A) enhances precision. The bearing handles dynamic radial loads up to 1433 lbf and works in temperatures from -30°C to 110°C.

This model is universally matched, allowing flexible arrangements like back-to-back or face-to-face mounting. Ideal for high-precision applications such as machine tools or spindle drives where accuracy and speed are crucial.

Weighing just 0.038kg, it’s lightweight yet robust, and comes as a set of two bearings for versatile use. Compliant with P4 tolerance standards for reliable performance.

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Product Parameters

  • Part Number 71805 ACD/HCP4DGA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 25 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 37 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 14 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.175 mm
  • Ball Qty 20
  • Contact Angle 25°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Universal matching
  • Number Of Bearings In Matched Set 2
  • 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 1433 lbf
  • Static Radial Load 1372 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 85000 rpm
  • Weight 0.038 kg
Super Precision Angular Contact Ball Bearings 71805 ACD/HCP4DGA dimension drawing
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Features

Performance Features of 71805 ACD/HCP4DGA Bearing

71805 ACD/HCP4DGA Bearing is crafted with chrome steel rings and ceramic balls, ensuring high precision and durability.
Its 25° contact angle and P4 tolerance class make it ideal for applications requiring exact angular alignment.

The phenolic cage maintains ball spacing, reducing friction and enhancing performance at speeds up to 85,000 rpm.
With universal matching, it supports various arrangements like back-to-back or face-to-face for versatile use.

Dynamic radial load capacity of 1433 lbf ensures reliable operation under stress.
Its lightweight design at 0.038 kg makes it suitable for precision machinery without adding bulk.

Application

Ideal for Precision: 71805 ACD/HCP4DGA Bearing
The 71805 ACD/HCP4DGA Bearing is a great fit for high-speed machine tools, where its ceramic balls reduce friction and heat buildup.
Its universal matching design allows flexible arrangements, making it versatile for various setups.

How Does 71805 ACD/HCP4DGA Bearing Improve Performance?
In robotics, the 71805 ACD/HCP4DGA Bearing ensures smooth motion in joints and arms due to its extra-light preload.
The phenolic cage adds durability, even in continuous operation.

Automotive vs Aerospace: Applications of 71805 ACD/HCP4DGA Bearing
For automotive gearboxes, the 71805 ACD/HCP4DGA Bearing handles angular loads efficiently.
In aerospace systems, its P4 tolerance class guarantees precision under demanding conditions.

Where Is 71805 ACD/HCP4DGA Bearing Used?
You’ll often find the 71805 ACD/HCP4DGA Bearing in dental drills, where its high-speed capability is crucial.
The chrome steel rings provide long-lasting performance in such precise instruments.

Built for Heavy-Duty Use: 71805 ACD/HCP4DGA Bearing
The 71805 ACD/HCP4DGA Bearing works well in industrial pumps, managing both radial and axial loads.
Its lubricated design ensures consistent performance even in tough environments.

Q&A

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