KF090AR0

3/4" Constant Section Bearings

KF090AR0 3/4" Constant Section Bearings
KF090AR0 3/4" Constant Section Bearings

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Part No.
Part No. KF090AR0

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Open
Construction Single Row
Weight 3.95 lbs
Tolerance class ABEC-1
ISO radial rating 9073 lbf
Seal type Open
For load direction Angular Contact

Main Dimensions

Bore diameter 9"
Bore diameter tolerance -0.0012"– 0"
Outside diameter 10.5"
Outside diameter tolerance -0.0012"– 0"
Width 0.75"
Width tolerance +.000 –.005"
Contact angle 30 °

Inner Ring Dimensions

Shoulder diameter inner ring 9.555"

Outer Ring Dimensions

Outer ring large-side face inner diameter 10.108"
Outer ring small-side face inner diameter 9.945"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 5608 lbf
Radial static load rating 13190 lbf
Axial static load rating 13700 lbf
Static load moment 38090 lbf
Lubrication Lubricated
Radial internal clearance 0.0000 – 0.0005"

Materials

Ring material Chrome Steel
Ball material Chrome Steel
Cage material Brass

Environment & Compliance

ROHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
Price: $ 247.12 / each
In Stock

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KF090AR0 Bearing Product Overview & Core Advantages

The KF090AR0 is a thin-section angular contact ball bearing designed for applications requiring high precision and space optimization. This single-row bearing excels at handling combined loads, supporting significant radial and axial loads simultaneously due to its 30° contact angle. Manufactured to ABEC-1 precision standards, it delivers reliable performance in compact assemblies. Its open construction allows for custom lubrication schemes, while the brass cage ensures stable operation, making it ideal for high-rigidity applications where dimensional accuracy is critical.

KF090AR0 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
KF Series designation for Reali-Slim thin section bearings
090 Bore diameter code (9 inches)
A Angular contact design with 30° contact angle
R Single row construction
0 Open design (no seals or shields)

KF090AR0 Bearing Structural Features & Performance Benefits

Thin-Section Design: With a cross-section of only 0.75" and consistent radial wall thickness, this bearing enables compact bearing arrangements while maintaining structural integrity.

High Load Capacity: The 30° contact angle provides excellent axial load capacity (13,700 lbf static) while maintaining substantial radial load rating (5,608 lbf dynamic). This makes it suitable for applications experiencing combined loading conditions.

Precision Performance: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore tolerance: -0.0012" to 0"), ensuring smooth operation and accurate positioning.

Enhanced Stability: The brass cage provides superior guidance and stability at moderate speeds, while the chrome steel construction of rings and balls ensures durability and consistent performance.

Flexible Lubrication: Open design allows for custom lubrication optimization based on specific application requirements and operating conditions.

KF090AR0 Bearing Typical Application Areas

  • Robotics and automation systems requiring precise motion control
  • Aerospace components and aircraft control mechanisms
  • Medical equipment including scanning and imaging devices
  • Semiconductor manufacturing equipment
  • Precision rotary tables and indexing mechanisms
  • Optical positioning systems and telescope mounts
  • Military and defense systems requiring high reliability
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