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Constant Section (CS) Bearings KF040XP0M

Constant Section (CS) Bearings KF040XP0M

The KF040XP0M is a thin-section ball bearing with a 4″ bore and 5.5″ outer diameter, designed for four-point contact loads. Its compact 0.75″ width makes it ideal for space-constrained applications, while the chrome steel construction ensures durability.

This bearing handles dynamic radial loads up to 4665 lbf and dynamic thrust loads up to 6830 lbf, suitable for moderate-speed operations. The brass cage enhances smooth rotation and longevity, even in temperatures ranging from -30°C to 110°C.

Its open design allows easy lubrication and maintenance, complying with RoHS standards. The bearing is interchangeable with KAYDON models, offering flexibility for replacements.

Perfect for robotics or precision machinery where slim profiles and reliable performance are key. Weighing just 1.9 lbs, it balances strength with lightweight design.

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Product Parameters

  • Part Number KF040XP0M
  • Brand TFL
  • Interchangeable KAYDON
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Four Point Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 4"
  • Bore Dia Tolerance -0.0008"– 0"
  • Outer Dia 5.5"
  • Outer Dia Tolerance -0.0006"– 0"
  • Width 0.75"
  • Width Tolerance +.000 –.005"
  • Thin Section Bearings Type Reali-Slim Open Bearings
  • Series KF 3/4" x 3/4"
  • Tolerance Class ABEC-1
  • Radial Clearance 0.0000 – 0.0005"
  • External Diameter On Inner Ring 4.555"
  • Internal Diameter On Outer Ring (Small Side Face) 4.945"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 4665 lbf
  • Static Radial Load 5360 lbf
  • Static Thrust Load 13400 lbf
  • Static Moment 12730 lbf
  • Temperature Range -30°C to 110 °C
  • Moment Load Rating 8 lbf
  • Dynamic Thrust Load 6830 lbf
  • Lubrication Lubricated
  • RoHS Compliant
  • Weight 1.9 lbs
  • price（$） 101.11
Constant Section (CS) Bearings KF040XP0M dimension drawing
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Features

Performance Features of KF040XP0M Bearing

KF040XP0M Bearing is built with chrome steel rings and balls, offering strong resistance to heavy loads.
Its dynamic radial load capacity reaches 4665 lbf, making it suitable for demanding applications.

The brass cage ensures smooth operation by keeping the balls properly aligned.
With a width of just 0.75″, it fits well in compact spaces without sacrificing performance.

KF040XP0M Bearing operates efficiently in temperatures ranging from -30°C to 110°C.
Its open design allows for easy lubrication, ensuring long-lasting reliability.

Application

Industrial Uses of KF040XP0M Bearing
KF040XP0M Bearing is commonly used in industrial machinery where space is limited but high load capacity is needed, such as robotic arms and conveyor systems. Its thin-section design makes it ideal for compact applications without sacrificing performance.

In automotive applications, KF040XP0M Bearing works well in steering systems and gearboxes, providing reliable support under radial and thrust loads. The chrome steel construction ensures durability even in demanding conditions.

For automation equipment, KF040XP0M Bearing offers smooth operation in precision devices like CNC machines and 3D printers. The brass cage helps reduce friction, enhancing efficiency in high-speed scenarios.

KF040XP0M Bearing is also suitable for medical imaging devices, where consistent performance and low noise are essential. Its ABEC-1 tolerance ensures reliable accuracy in sensitive applications.

Q&A

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