KP--BS / MKP--BS

Overview of KP-BS / MKP-BS Series Bearings

The KP-BS / MKP-BS Series represents a class of extra light-duty, single-row ball bearings with external self-aligning capability. Engineered for aerospace control systems, these bearings provide operational stability even under shaft or housing misalignment. Their lightweight and compact structure make them suitable for weight-critical aircraft components, such as control rods, flap mechanisms, and sensor linkages.

Key Technical Features

• Material: Precision rings and balls manufactured from AISI 52100 chrome steel for high fatigue resistance and dimensional stability.
• Self-Aligning Design: Externally self-aligning geometry accommodates angular misalignment, improving assembly flexibility and bearing life.
• Seal Type: Removable PTFE (Polytetrafluoroethylene) seals protect internal components from contaminants while allowing maintenance access.
• Operating Temperature Range: -65 °F to +250 °F (-54 °C to +121 °C), ensuring performance in extreme environments.
• Lubrication: Pre-lubricated with MIL-PRF-81322 synthetic grease, 80% fill as standard, to meet aerospace-grade reliability standards.
• Surface Treatment: Cadmium plating per AMS-QQ-P-416 (excluding bore) for corrosion resistance. All listed dimensions reflect finished size after plating.

Typical Applications

These externally self-aligning bearings are well-suited for:

• Aerospace control linkages with angular movement
• Systems with shaft misalignment tolerance requirements
• Lightweight structural components in avionics and UAVs

Customization Capabilities

To support a wide range of aerospace and defense applications, the following customization options are available upon request:

• Special materials (e.g., stainless steel or hybrid ceramic)
• Custom diameters, widths, and shoulder dimensions
• Modified internal clearance and bearing preload
• Alternate lubricants for high-speed, high-vacuum, or cleanroom use
• RoHS-compliant plating alternatives

Technical Notes

• All dimensions are provided in inches unless otherwise specified.
• Product documentation such as CAD models and datasheets are available for OEM integration.

Contact us for detailed specifications, custom configurations, or engineering support tailored to your application.