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Super Precision Angular Contact Ball Bearings S71918 ACDGA/P4A

Super Precision Angular Contact Ball Bearings S71918 ACDGA/P4A

The S71918 ACDGA/P4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from durable chrome steel. Its 25° contact angle efficiently handles both radial and thrust loads.

With a dynamic radial load capacity of 9945 lbf, it spins smoothly at speeds up to 15,000 RPM. The sealed design keeps grease in place, reducing maintenance needs while operating in temperatures from -30°C to 110°C.

The phenolic cage ensures quiet, long-lasting performance, and its P4A tolerance class guarantees high precision. Ideal for machine tools or high-speed spindles where accuracy is crucial.

Weighing 0.57kg, it’s available as a universal matching set for back-to-back, face-to-face, or tandem arrangements. Interchangeable with SKF bearings for easy replacements.

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Product Parameters

  • Part Number S71918 ACDGA/P4A
  • 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 26
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • 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 Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 9945 lbf
  • Static Radial Load 10800 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 0.57 kg
Super Precision Angular Contact Ball Bearings S71918 ACDGA/P4A dimension drawing
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Features

Performance Features of S71918 ACDGA/P4A Bearing

S71918 ACDGA/P4A Bearing is designed with a 25° contact angle, providing excellent angular contact performance.
Its chrome steel rings and balls ensure durability and resistance to wear under high radial loads.

The phenolic cage in S71918 ACDGA/P4A Bearing helps reduce friction and maintain smooth operation.
With a maximum speed of 15,000 rpm, it is suitable for high-speed applications.

S71918 ACDGA/P4A Bearing can handle dynamic radial loads up to 9945 lbf, making it reliable for demanding tasks.
Its sealed design and grease lubrication reduce maintenance needs and extend service life.

The P4A tolerance class ensures high precision, ideal for applications requiring tight tolerances.
S71918 ACDGA/P4A Bearing operates efficiently in temperatures ranging from -30°C to 110°C.

Application

Super Precision Angular Contact Ball Bearings S71918 ACDGA/P4A excels in high-speed machine tool spindles, where its 25° contact angle ensures precise radial and axial load handling. The sealed design keeps contaminants out, extending service life in demanding industrial environments.

In automotive applications, S71918 ACDGA/P4A is often used in electric vehicle motors, supporting smooth rotation under angular loads. Its phenolic cage and grease lubrication make it suitable for both high-speed and low-noise requirements.

For robotics, S71918 ACDGA/P4A provides reliable performance in articulated arms, where its P4A tolerance class ensures minimal vibration. The chrome steel construction offers durability in repetitive motion scenarios.

Medical imaging devices benefit from S71918 ACDGA/P4A’s precision, particularly in rotating components of CT scanners. The extra light preload ensures consistent accuracy during prolonged use.

In aerospace systems, S71918 ACDGA/P4A handles angular loads in auxiliary equipment, thanks to its high dynamic radial load capacity. The temperature range of -30°C to 110°C makes it versatile for various operating conditions.

Q&A

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