KB042XP0

5/16" Constant Section Bearings

KB042XP0 5/16" Constant Section Bearings
KB042XP0 5/16" Constant Section Bearings

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Part No.
Part No. KB042XP0

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Open
Construction Single Row
Weight 0.31 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 4.875"
Outside diameter tolerance -0.0008"- 0"
Width 0.3125"
Width tolerance +.000 –.005"

Inner Ring Dimensions

Shoulder diameter inner ring 4.481"

Outer Ring Dimensions

Outer ring small-side face inner diameter 4.643"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 1120 lbf
Radial static load rating 1830 lbf
Axial dynamic load rating 1780 lbf
Axial static load rating 4570 lbf
Dynamic load moment 1917 lbf
Static load moment 4170 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: $ 97.87 / each
In Stock

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KB042XP0 Bearing Product Overview & Core Advantages

The KB042XP0 is a high-performance thin section bearing designed for applications requiring maximum load capacity in minimal cross-section. This Four Point Contact ball bearing excels in handling combined radial and axial loads simultaneously from any direction. Manufactured to ABEC-1 precision standards, it delivers reliable operation in compact spaces where weight and space savings are critical. Its optimized design provides exceptional load moment capacity while maintaining minimal cross-sectional dimensions.

KB042XP0 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
KB Kaydon® Reali-Slim® bearing series identifier
042 Bore diameter designation (4.25 inches)
X Cross section size designation
P Four Point Contact design
0 Open construction (no seals)

KB042XP0 Bearing Structural Features & Performance Benefits

Four Point Contact Design: The unique raceway geometry enables the bearing to support combined radial and axial loads in any combination, making it ideal for complex loading conditions. This design provides superior moment load capacity compared to standard single row bearings.

Thin Section Construction: With a minimal cross-section of only 0.3125" width, this bearing delivers maximum performance in space-constrained applications while maintaining high rigidity and dimensional stability.

Premium Material Selection: Constructed from chrome steel rings and balls with a brass cage, the bearing ensures optimal strength, durability, and smooth operation under demanding conditions.

Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional control, the bearing provides consistent performance and reliable operation in precision applications.

KB042XP0 Bearing Typical Application Areas

  • Robotics and Automation: Rotary joints, robotic arms, and positioning systems
  • Aerospace and Defense: Radar systems, gimbal mechanisms, and control surfaces
  • Medical Equipment: CT scanners, MRI machines, and surgical robotics
  • Semiconductor Manufacturing: Wafer handling equipment and precision stages
  • Optical and Instrumentation: Telescope mounts, measuring devices, and precision turntables
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