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Super Precision Angular Contact Ball Bearings 71918 ACEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71918 ACEGA/HCP4A

The 71918 ACEGA/HCP4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from chrome steel for durability. It features ceramic balls and a phenolic cage, ensuring smooth operation at speeds up to 15,000 RPM.

With a 25° contact angle, it handles both radial and angular loads efficiently, supporting up to 6435 lbf dynamically. Its extra light preload (Class A) makes it ideal for high-precision applications where minimal friction is key.

The open design allows for easy lubrication, while the P4A tolerance class guarantees exceptional accuracy. Suitable for paired arrangements like back-to-back or face-to-face setups, it’s versatile for demanding machinery.

Weighing 0.46kg, this bearing operates reliably in temperatures from -30°C to 110°C. Perfect for CNC spindles or high-speed robotics, where precision and speed are critical.

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Product Parameters

  • Part Number 71918 ACEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 24
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • 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 6435 lbf
  • Static Radial Load 5130 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.46 kg
Super Precision Angular Contact Ball Bearings 71918 ACEGA/HCP4A dimension drawing
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Features

Performance Features of 71918 ACEGA/HCP4A Bearing

71918 ACEGA/HCP4A Bearing features a 25° contact angle, optimised for precision angular contact applications.
Its chrome steel rings and ceramic balls ensure smooth operation under high-speed conditions.

The phenolic cage maintains ball alignment, reducing friction and wear.
With a dynamic radial load capacity of 6435 lbf, it handles demanding tasks with ease.

71918 ACEGA/HCP4A Bearing operates efficiently at speeds up to 15,000 rpm.
Its extra light preload design ensures minimal vibration and noise.

The open seal type allows for easy lubrication, enhancing performance.
Its temperature range of -30°C to 110°C ensures reliability in various environments.

71918 ACEGA/HCP4A Bearing is suitable for universal matching in back-to-back or face-to-face arrangements.
This versatility makes it ideal for complex machinery setups.

Application

Where Is 71918 ACEGA/HCP4A Bearing Used?
71918 ACEGA/HCP4A Bearing is commonly found in high-speed machine spindles, where its ceramic balls and phenolic cage reduce friction and heat buildup. The extra light preload ensures smooth rotation, making it ideal for precision machining.

In robotics, 71918 ACEGA/HCP4A Bearing supports articulated arms, providing stability during rapid movements. Its 25° contact angle helps manage combined radial and axial loads efficiently.

For medical imaging devices, 71918 ACEGA/HCP4A Bearing’s P4A tolerance class guarantees accuracy in sensitive components. The chrome steel rings and ceramic balls also extend service life in demanding environments.

Q&A

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