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Super Precision Angular Contact Ball Bearings S71918 CE/P4A

Super Precision Angular Contact Ball Bearings S71918 CE/P4A

The S71918 CE/P4A is a super precision angular contact ball bearing with a 90mm bore and 125mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and comes sealed for protection, with matched arrangements and preload options available.

This bearing handles radial loads up to 6908 lbf and operates smoothly at speeds up to 14,500 RPM. Its phenolic cage ensures durability while keeping the weight low at just 0.54kg.

The sealed design keeps lubrication in and contaminants out, making it ideal for high-speed applications like machine tool spindles or precision instruments. It performs reliably in temperatures from -30°C to 110°C.

With a P4 tolerance class (equivalent to ABEC-7), it offers excellent precision for demanding tasks. Interchangeable with SKF bearings, it’s a versatile choice for replacements or upgrades.

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Product Parameters

  • Part Number S71918 CE/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.008mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 18 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 11.112 mm
  • Ball Qty 24
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Sealed
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 6908 lbf
  • Static Radial Load 5400 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 14500 rpm
  • Weight 0.54 kg
  • Price（$） 121.734
Super Precision Angular Contact Ball Bearings S71918 CE/P4A dimension drawing
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Features

Why Choose S71918 CE/P4A Bearing for Precision Tasks?

S71918 CE/P4A Bearing features a 15° contact angle, optimised for high-precision angular contact applications.
Its chrome steel rings and balls ensure durability and smooth operation under radial loads up to 6908 lbf.

The phenolic cage maintains ball alignment, reducing friction and noise during high-speed rotation.
With a maximum speed of 14,500 rpm, it delivers reliable performance in demanding conditions.

Sealed design and built-in lubrication minimise maintenance while extending service life.
The P4 tolerance class guarantees consistent precision for critical industrial applications.

Application

Key Fields for S71918 CE/P4A Bearing
S71918 CE/P4A Bearing is widely used in high-precision machine tools, where its angular contact design ensures accurate spindle rotation. The sealed construction helps maintain performance in environments with dust or debris.

In robotics, S71918 CE/P4A Bearing supports articulated arms, providing smooth movement and reliability. Its phenolic cage reduces friction, making it ideal for repetitive motions.

For medical imaging devices, S71918 CE/P4A Bearing offers consistent performance due to its chrome steel rings. The P4 tolerance class ensures minimal vibration, crucial for clear imaging results.

Automotive applications include electric vehicle motors, where S71918 CE/P4A Bearing handles high speeds efficiently. The lubricated design extends service life even under continuous operation.

Q&A

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