MDW-K/MDW-

Overview of MDW-K/MDW- Series Bearings

The MDW-K/MDW- Series bearings are extra wide, double-row, intermediate-duty precision components specifically designed for demanding aerospace environments. These bearings provide increased load distribution and operational stability, making them suitable for assemblies requiring enhanced radial strength and moderate axial support.

Key Features and Design Benefits

• Material: Rings and balls made from high-quality AISI 52100 chrome steel for superior hardness and fatigue resistance.
• Configuration: Double-row design offers enhanced radial capacity and improved operational balance.
• Duty Rating: Intermediate-duty construction suitable for control surfaces and other mechanical systems under moderate loads.
• Width: Extra wide design increases contact area, helping to distribute load more efficiently and improve durability.
• Sealing: Nonremovable PTFE seals protect against contaminants and eliminate the need for frequent maintenance.
• Operating Temperature: -65 °F to +250 °F (-54 °C to +121 °C), optimized for aerospace thermal conditions.
• Contact Angle: Bearings feature converging contact angles (denoted by ‘/’) for improved axial and radial load management.
• Lubrication: Pre-lubricated with MIL-PRF-81322 aerospace-grade grease (80% fill standard).
• Plating: External surfaces (excluding the bore) are cadmium plated in compliance with AMS-QQ-P-416. All dimensional specs are post-plating.

Customization and Engineering Support

To accommodate a wide range of design and environmental requirements, custom configurations are available upon request. Options include:

• Special sizes and geometries
• Alternate materials (e.g., stainless steel)
• Tailored radial internal clearances
• Specialized lubricants
• Alternative plating options (e.g., RoHS-compliant coatings)
• Application-specific tolerance grades

Common Applications

The MDW-K/MDW- Series bearings are used in a variety of aerospace assemblies that demand consistent performance and structural integrity, such as:

• Flight control surface hinges
• Landing gear mechanisms
• Actuation systems under moderate dynamic loads
• Missile fins and control rod linkages

Dimensional Standards

All standard measurements are provided in inches unless otherwise specified. Engineering drawings and CAD models are available upon request to support design integration.

Need application-specific assistance or bulk pricing? Contact our engineering team for technical support and tailored solutions.