KA042XP0

1/4" Constant Section Bearings

KA042XP0 1/4" Constant Section Bearings
KA042XP0 1/4" Constant Section Bearings

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Part No.
Part No. KA042XP0

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Open
Construction Single Row
Weight 0.2 lbs
Tolerance class ABEC-1
Seal type Open
For load direction Four Point Contact

Main Dimensions

Bore diameter 4.25"
Bore diameter tolerance -0.0008" – 0"
Outside diameter 4.75"
Outside diameter tolerance -0.0008" – 0"
Width 0.25"
Width tolerance +.000 –.005"

Inner Ring Dimensions

Shoulder diameter inner ring 4.436"

Outer Ring Dimensions

Outer ring small-side face inner diameter 4.564"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 783 lbf
Radial static load rating 1370 lbf
Axial dynamic load rating 1260 lbf
Axial static load rating 3410 lbf
Dynamic load moment 1321 lbf
Static load moment 3070 lbf
Rated load moment 1 ft-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: $ 84.71 / each
In Stock

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KA042XP0 Bearing Product Overview & Core Advantages

The KA042XP0 is a thin section four-point contact ball bearing engineered for applications requiring compact design and high load capacity within minimal cross-sections. This single row bearing is specifically designed to handle combined radial and axial loads simultaneously from any direction, making it an ideal solution for precision positioning systems and robotic applications where space constraints and weight reduction are critical factors.

KA042XP0 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
KA042 Bearing series designation for thin section four-point contact bearings
X Cross section designation (specific to thin section bearing geometry)
P0 Normal precision grade (equivalent to ABEC-1 tolerance class)

KA042XP0 Bearing Structural Features & Performance Benefits

Four-Point Contact Design: The unique raceway geometry enables the bearing to support combined loads efficiently while maintaining minimal cross-section dimensions. This design provides exceptional moment load capacity with dynamic load moment rating of 1321 lbf and static load moment rating of 3070 lbf.

Thin Section Construction: With a consistent 0.25" cross-section and large 4.25" bore diameter, this bearing maximizes available space while minimizing weight (0.2 lbs), making it perfect for lightweight applications.

Premium Material Composition: Constructed with chrome steel rings and chrome steel balls for durability, combined with a brass cage that ensures stable operation and extended service life.

Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore and OD tolerance: -0.0008" to 0") for reliable performance in precision applications.

KA042XP0 Bearing Typical Application Areas

  • Robotics and Automation: Robot joints, rotary actuators, and positioning systems
  • Aerospace and Defense: Guidance systems, radar platforms, and satellite mechanisms
  • Medical Equipment: CT scanners, MRI machines, and surgical robotics
  • Semiconductor Manufacturing: Wafer handling equipment and precision stages
  • Industrial Machinery: Rotary tables, indexing heads, and precision gearboxes
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