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Super Precision Angular Contact Ball Bearings S7018 ACD/P4ADBA

Super Precision Angular Contact Ball Bearings S7018 ACD/P4ADBA

The S7018 ACD/P4ADBA is a super precision angular contact ball bearing with a 90mm bore and 140mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 27225 lbf and operates smoothly at speeds up to 15000 RPM.

Its sealed design keeps grease in and contaminants out, while the phenolic cage ensures quiet, long-lasting performance. The 25° contact angle and extra-light preload make it ideal for high-precision applications.

This matched set of two bearings (DB arrangement) offers excellent stability under angular loads. Suitable for machine tools or spindles where accuracy and low friction are key.

Weighing 2.33kg, it works in temperatures from -30°C to 110°C. Compliant with P4A tolerance class for exceptional precision.

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Product Parameters

  • Part Number S7018 ACD/P4ADBA
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 48 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 15.875 mm
  • Ball Qty 20
  • Contact Angle 25°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement 2 bearings <> DB
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing No
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 27225 lbf
  • Static Radial Load 32175 lbf
  • Lubrication Grease
  • Temperature Range - 30°C to 110 °C
  • Max Speed 15000 rpm
  • Weight 2.33 kg
Super Precision Angular Contact Ball Bearings S7018 ACD/P4ADBA dimension drawing
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Features

Performance Features of S7018 ACD/P4ADBA Bearing

S7018 ACD/P4ADBA Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.

The chrome steel rings and balls enhance durability, supporting dynamic radial loads up to 27225 lbf.

With a phenolic cage, it ensures smooth operation at high speeds, reaching up to 15,000 rpm.

Its sealed design and grease lubrication reduce maintenance needs, making it reliable in various conditions.

Application

Key Fields for S7018 ACD/P4ADBA Bearing
S7018 ACD/P4ADBA Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction keeps contaminants out, extending service life in demanding workshop conditions.

In robotics, S7018 ACD/P4ADBA Bearing enables smooth motion control for articulated arms, thanks to its extra-light preload and phenolic cage. The matched bearing arrangement provides stability for repetitive, high-accuracy tasks.

For medical imaging devices like CT scanners, S7018 ACD/P4ADBA Bearing offers reliable performance with minimal vibration. Its chrome steel components withstand continuous operation while maintaining precision tolerances.

Automotive testing equipment benefits from S7018 ACD/P4ADBA Bearing’s ability to handle combined radial and thrust loads. The grease lubrication ensures quiet operation during prolonged use in diagnostic machinery.

In semiconductor manufacturing, S7018 ACD/P4ADBA Bearing supports wafer handling systems where cleanliness and precision are critical. The P4A tolerance class meets strict industry requirements for microscopic alignment.

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