+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Constant Section (CS) Bearings KF400AR0

Constant Section (CS) Bearings KF400AR0

The KF400AR0 is a thin-section angular contact bearing with a 40″ bore and 41.5″ outer diameter, crafted from durable chrome steel. Its slim 0.75″ width makes it ideal for space-constrained applications while handling radial loads up to 12147 lbf.

The 30° contact angle and brass cage ensure smooth operation under combined loads, with a temperature range of -30°C to 110°C. Its open design allows easy lubrication and maintenance.

This bearing is interchangeable with KAYDON models, offering a reliable alternative. Suitable for machinery requiring precise motion control, like robotics or medical equipment.

Weighing 16.6 lbs, it meets ABEC-1 tolerance standards and is RoHS compliant for safe industrial use.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number KF400AR0
  • Brand TFL
  • Interchangeable KAYDON
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 40"
  • Bore Dia Tolerance -0.0020"– 0"
  • Outer Dia 41.5"
  • Outer Dia Tolerance -0.0020"– 0"
  • Width 0.75"
  • Width Tolerance +.000 –.010"
  • 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"
  • Contact Angle 30°
  • External Diameter On Inner Ring 40.555"
  • Internal Diameter On Outer Ring (Small Side Face) 40.945"
  • Internal Diameter On Outer Ring (Large Side Face) 41.054"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 12147 lbf
  • Static Radial Load 55220 lbf
  • Static Thrust Load 35580 lbf
  • Static Moment 159400 lbf
  • Temperature Range -30°C to 110 °C
  • ISO Radial 15387 lbf
  • Lubrication Lubricated
  • RoHS Compliant
  • Weight 16.6 lbs
  • price（$） 5236.47
Constant Section (CS) Bearings KF400AR0 dimension drawing
Download DWG Download PDF

Features

Performance Features of KF400AR0 Bearing

KF400AR0 Bearing is designed with a 30° contact angle, optimising its performance in angular contact applications.
Its chrome steel rings and balls provide strong resistance to both radial and thrust loads.

The brass cage ensures smooth operation by keeping the balls aligned, reducing wear over time.
With a dynamic radial load capacity of 12147 lbf, it handles demanding conditions reliably.

KF400AR0 Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its ABEC-1 tolerance class ensures consistent performance in precision applications.

The open design simplifies maintenance, while the chrome steel construction resists corrosion.
This makes KF400AR0 Bearing suitable for various industrial environments.

Application

Industrial Uses of KF400AR0 Bearing
KF400AR0 Bearing is commonly used in large industrial machinery, such as rotary tables and indexing devices, where its thin-section design saves space without compromising strength. The open seal type allows for easy lubrication, making it suitable for high-precision applications.

In robotics, KF400AR0 Bearing provides smooth angular contact motion, ideal for robotic arms and automated assembly lines. Its brass cage ensures quiet operation, which is essential in noise-sensitive environments.

For aerospace applications, KF400AR0 Bearing’s chrome steel construction offers reliable performance in control systems and landing gear mechanisms. The ABEC-1 tolerance class ensures consistent accuracy under varying loads.

Where Is KF400AR0 Bearing Used?
KF400AR0 Bearing is often found in medical imaging equipment, where its precise angular contact capabilities support accurate positioning. The thin-section design also helps reduce the overall weight of the device.

In packaging machinery, KF400AR0 Bearing handles dynamic radial loads efficiently, ensuring smooth operation in high-speed production lines. Its brass cage adds durability, making it a cost-effective choice for long-term use.

Built for Heavy-Duty Use: KF400AR0 Bearing
KF400AR0 Bearing excels in construction equipment, such as cranes and excavators, where its high static load capacity ensures stability. The chrome steel rings provide excellent resistance to wear and corrosion.

For wind turbine yaw systems, KF400AR0 Bearing’s large diameter and thin-section design make it a practical solution. Its ability to handle moment loads adds to its versatility in renewable energy applications.

Automotive vs Aerospace: Applications of KF400AR0 Bearing
In automotive steering systems, KF400AR0 Bearing offers precise angular contact for smooth handling. Its inch sizing makes it compatible with many North American vehicle designs.

For aerospace actuators, KF400AR0 Bearing’s high static thrust load capacity ensures reliable performance. The temperature range of -30°C to 110°C makes it suitable for extreme operating conditions.

Q&A

SEND INQUIRY