KB040XP0

5/16" Constant Section Bearings

KB040XP0 5/16" Constant Section Bearings
KB040XP0 5/16" Constant Section Bearings

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Part No.
Part No. KB040XP0

Basic Information

Bearing type Ball
System of measurement Inch
Thin section bearings type Reali-Slim Open
Construction Single Row
Weight 0.3 lbs
Tolerance class ABEC-1
Seal type Open
For load direction Four Point Contact

Main Dimensions

Bore diameter 4"
Bore diameter tolerance -0.0008"- 0"
Outside diameter 4.625"
Outside diameter tolerance -0.0006"- 0"
Width 0.3125"
Width tolerance +.000 –.005"

Inner Ring Dimensions

Shoulder diameter inner ring 4.231"

Outer Ring Dimensions

Outer ring small-side face inner diameter 4.393"

Performance

Temperature range -30°C to 110 °C
Radial dynamic load rating 1091 lbf
Radial static load rating 1750 lbf
Axial dynamic load rating 1720 lbf
Axial static load rating 4370 lbf
Dynamic load moment 1764 lbf
Static load moment 3770 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: $ 93.19 / each
In Stock

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KB040XP0 Bearing Product Overview & Core Advantages

The KB040XP0 is a high-performance thin section bearing designed for applications requiring compact design and precise motion control. As a Four Point Contact ball bearing, it excels at simultaneously handling combined radial and axial loads from any direction. Its inch-series construction with ABEC-1 precision ensures reliable operation in space-constrained assemblies where weight reduction and dimensional accuracy are critical. The open design facilitates easy lubrication integration for optimized service life.

KB040XP0 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning Performance Benefit
KB040 Bore diameter: 4" Standard inch sizing for compatibility
XP0 Reali-Slim Open bearing series Ultra-thin cross-section design
Open No seals or shields Allows custom lubrication schemes

KB040XP0 Bearing Structural Features & Performance Benefits

Four Point Contact Design: The raceway geometry enables the bearing to support combined radial and axial loads in any combination, making it ideal for complex loading conditions.

Thin Section Construction: With a consistent 0.3125" width across all diameters, this thin section bearing maximizes space utilization while maintaining structural integrity.

Precision Components: Chrome steel rings and balls combined with a brass cage provide excellent durability and smooth operation under dynamic loading conditions.

High Load Capacity: Delivers radial dynamic load rating of 1091 lbf and axial dynamic load rating of 1720 lbf, supporting substantial load moments in compact envelopes.

KB040XP0 Bearing Typical Application Areas

  • Robotics and Automation: Rotary joints, robotic arms, and precision positioning systems
  • Aerospace Systems: Guidance mechanisms, actuator systems, and satellite components
  • Medical Equipment: Imaging devices, surgical robots, and diagnostic instrumentation
  • Semiconductor Manufacturing: Wafer handling equipment and precision stages
  • Industrial Machinery: Rotary tables, indexing heads, and precision gearboxes
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