KA090AR0

1/4" Constant Section Bearings

KA090AR0 1/4" Constant Section Bearings
KA090AR0 1/4" Constant Section Bearings

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Part No.
Part No. KA090AR0

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Open
Construction Single Row
Weight 0.41 lbs
Tolerance class ABEC-1
ISO radial rating 1802 lbf
Seal type Open
For load direction Angular Contact

Main Dimensions

Bore diameter 9"
Bore diameter tolerance -0.0012"– 0"
Outside diameter 9.5"
Outside diameter tolerance -0.0012"– 0"
Width 0.25"
Width tolerance +.000 –.005"
Contact angle 30 °

Inner Ring Dimensions

Shoulder diameter inner ring 9.186"

Outer Ring Dimensions

Outer ring large-side face inner diameter 9.357"
Outer ring small-side face inner diameter 9.314"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 954 lbf
Radial static load rating 3240 lbf
Axial static load rating 2470 lbf
Static load moment 9360 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: $ 173.71 / each
In Stock

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KA090AR0 Bearing Product Overview & Core Advantages

The KA090AR0 is a premium thin section angular contact ball bearing designed for applications requiring exceptional precision and space optimization. Engineered with a 30° contact angle, this single-row bearing excels at handling combined radial and axial loads simultaneously. Manufactured to ABEC-1 precision standards, it delivers reliable performance in compact assemblies where high rotational accuracy and rigid support are critical. Its open construction allows for custom lubrication schemes to match specific operational requirements.

KA090AR0 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
KA090 Basic bearing designation with 9" bore diameter
A Angular contact design with 30° contact angle
R0 Reali-Slim open bearing series with standard radial clearance

KA090AR0 Bearing Structural Features & Performance Benefits

Thin-Section Design: With only 0.25" width and minimal cross-section, this bearing enables compact bearing arrangements while maintaining high load capacity, making it ideal for space-constrained applications.

Angular Contact Configuration: The 30° contact angle provides optimal performance for applications requiring high axial load capacity combined with substantial radial load support, ensuring stable operation under complex loading conditions.

Precision Engineering: Manufactured to ABEC-1 tolerance standards with tight dimensional control (bore and OD tolerance: -0.0012" to 0"), this bearing delivers consistent high-precision performance and smooth operation.

Premium Material Construction: Utilizing chrome steel rings and balls with brass cage ensures excellent durability, wear resistance, and reliable operation across the specified temperature range of -30°C to 110°C.

KA090AR0 Bearing Typical Application Areas

Robotics and Automation: Ideal for robotic joints, rotary tables, and precision positioning systems requiring thin section bearings with high accuracy and load capacity.

Aerospace and Defense: Suitable for aircraft control systems, radar positioning mechanisms, and satellite tracking equipment where space optimization and reliability are paramount.

Medical Equipment: Used in CT scanners, surgical robots, and diagnostic instruments demanding precision angular contact bearings with minimal cross-section.

Industrial Machinery: Applications in packaging equipment, printing machinery, and semiconductor manufacturing equipment requiring high-speed precision bearings with combined load capability.

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