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Constant Section (CS) Bearings KC040AR0

Constant Section (CS) Bearings KC040AR0

The KC040AR0 is a slim, angular contact ball bearing measuring 4″ in bore and 4.75″ in outer diameter, with a compact width of just 0.375″. Made from chrome steel with a brass cage, it’s built for durability and smooth operation.

This bearing handles radial loads up to 1153 lbf and static thrust loads up to 2770 lbf, making it suitable for precise applications. Its 30° contact angle ensures stable performance under angular forces.

The open design allows easy lubrication, while the ABEC-1 tolerance ensures reliable precision. It operates smoothly in temperatures from -30°C to 110°C.

Ideal for machinery requiring slim profiles and angular load support, such as robotics or medical equipment. Weighing only 0.44 lbs, it’s lightweight yet robust. Compliant with RoHS standards for safe use.

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Product Parameters

  • Part Number KC040AR0
  • Brand TFL
  • Interchangeable KAYDON
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 4"
  • Bore Dia Tolerance -0.0008"– 0"
  • Outer Dia 4.75"
  • Outer Dia Tolerance -0.0006"– 0"
  • Width 0.375"
  • Width Tolerance +.000 –.005"
  • Thin Section Bearings Type Reali-Slim Open Bearings
  • Series KC 3/8" x 3/8"
  • Tolerance Class ABEC-1
  • Radial Clearance 0.0000 – 0.0005"
  • Contact Angle 30°
  • External Diameter On Inner Ring 4.277"
  • Internal Diameter On Outer Ring (Small Side Face) 4.473"
  • Internal Diameter On Outer Ring (Large Side Face) 4.554"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 1153 lbf
  • Static Radial Load 2550 lbf
  • Static Thrust Load 2770 lbf
  • Static Moment 7360 lbf
  • Temperature Range -30°C to 110 °C
  • ISO Radial 2520 lbf
  • Lubrication Lubricated
  • RoHS Compliant
  • Weight 0.44 lbs
  • price（$） 89.84
Constant Section (CS) Bearings KC040AR0 dimension drawing
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Features

Performance Features of KC040AR0 Bearing

KC040AR0 Bearing is built with chrome steel rings and balls, offering strong resistance to angular contact loads.
Its dynamic radial load capacity reaches 1153 lbf, ensuring reliable performance in various applications.

The brass cage maintains ball alignment, reducing friction and extending the bearing’s service life.
With a temperature range of -30°C to 110°C, KC040AR0 Bearing performs well in diverse environments.

KC040AR0 Bearing’s ABEC-1 tolerance class ensures precision, making it suitable for high-accuracy tasks.
The open design allows for easy lubrication, enhancing smooth operation and reducing maintenance needs.

Application

Key Fields for KC040AR0 Bearing
KC040AR0 Bearing works well in industrial robots, especially where space is tight but precision is needed. Its thin section design fits neatly into compact assemblies without sacrificing performance.

In aerospace applications, KC040AR0 Bearing handles angular contact loads smoothly, making it suitable for control systems. The brass cage adds durability, which is essential for high-stress environments.

For medical imaging devices, KC040AR0 Bearing’s chrome steel construction ensures reliable operation. Its ABEC-1 tolerance class provides the consistency needed for sensitive equipment.

Automotive steering systems benefit from KC040AR0 Bearing’s ability to manage both radial and thrust loads. The inch sizing makes it a good match for many North American vehicle designs.

In 3D printers, KC040AR0 Bearing offers smooth motion control for precise layering. The open seal design allows for easy lubrication, extending its service life.

Q&A

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