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Constant Section (CS) Bearings KF070AR3

Constant Section (CS) Bearings KF070AR3

The KF070AR3 is a constant section bearing measuring 7″×8.5″×0.75″, designed for angular contact loads. Made from chrome steel with a brass cage, it offers a balance of strength and smooth operation.

This single-row bearing handles radial loads up to 4932 lbf and static thrust loads up to 11770 lbf, making it suitable for precise applications. Its 30° contact angle ensures stable performance under combined loads.

The open design allows for easy lubrication, while the ABEC 3F tolerance class guarantees consistent precision. It operates smoothly in temperatures from -30°C to 110°C.

Ideal for machinery requiring thin-section bearings, such as robotics or medical equipment. Weighing 3.16 lbs, it’s a robust yet compact choice for space-constrained setups. Compliant with RoHS standards for safe use.

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Product Parameters

  • Part Number KF070AR3
  • Brand TFL
  • Interchangeable KAYDON
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Angular Contact
  • Construction Single Row
  • Seal Type Open
  • Bore Dia 7"
  • Bore Dia Tolerance -0.0010"– 0"
  • Outer Dia 8.5"
  • Outer Dia Tolerance -0.0012"– 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 3F
  • Radial Clearance 0.0000 – 0.0005"
  • Contact Angle 30°
  • External Diameter On Inner Ring 7.555"
  • Internal Diameter On Outer Ring (Small Side Face) 7.945"
  • Internal Diameter On Outer Ring (Large Side Face) 8.113"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Brass
  • Dynamic Radial Load 4932 lbf
  • Static Radial Load 10510 lbf
  • Static Thrust Load 11770 lbf
  • Static Moment 30330 lbf
  • Temperature Range -30°C to 110 °C
  • ISO Radial 8329 lbf
  • Lubrication Lubricated
  • RoHS Compliant
  • Weight 3.16 lbs
  • price（$） 212.62
Constant Section (CS) Bearings KF070AR3 dimension drawing
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Features

Performance Features of KF070AR3 Bearing

KF070AR3 Bearing is designed with a 30° contact angle, optimising load distribution for 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 friction and wear.
With a dynamic radial load capacity of 4932 lbf, it handles demanding conditions reliably.

KF070AR3 Bearing operates efficiently within a temperature range of -30°C to 110°C.
Its ABEC 3F tolerance class ensures consistent performance in precision applications.

Application

Industrial Uses of KF070AR3 Bearing
KF070AR3 Bearing is commonly used in industrial machinery where space constraints are a concern, thanks to its slim design. Its open construction allows for easy lubrication, making it suitable for high-speed applications like packaging equipment.

Where Is KF070AR3 Bearing Used?
You’ll often find KF070AR3 Bearing in robotics, particularly in articulated arms that require precise angular contact. The brass cage ensures smooth operation even under varying loads.

Built for Heavy-Duty Use: KF070AR3 Bearing
KF070AR3 Bearing handles heavy radial and thrust loads effortlessly, making it ideal for construction equipment. The chrome steel rings provide durability in harsh environments.

Automotive vs Aerospace: Applications of KF070AR3 Bearing
In automotive systems, KF070AR3 Bearing supports steering columns, while in aerospace, it’s used in control mechanisms. Its ABEC 3F tolerance ensures reliability in both fields.

Perfect Fit for Automation: KF070AR3 Bearing
KF070AR3 Bearing works well in automated assembly lines, where its 30° contact angle improves alignment accuracy. The inch sizing makes it compatible with many North American machines.

Q&A

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