G-/GD-

Overview of G- / GD- Series Guide Roller Bearings

The G- and GD- Series Airframe Control Ball Bearings are high-performance guide roller bearings tailored for aircraft and demanding mechanical systems. Available in single-row (G-) and double-row (GD-) variants, they deliver superior tracking control, support for radial and axial loads, and precise alignment in motion guidance applications.

Core Features

• Premium Steel Construction: Manufactured using high-quality AISI 52100 chrome steel for rings and balls, ensuring exceptional hardness, fatigue resistance, and long-term durability.
• Wide Temperature Tolerance: Operating range from -65 °F to +250 °F (-54 °C to +121 °C), making them suitable for aerospace and other high-performance environments.
• Optional Shield/Seal Configuration: Seal or shield types are application-specific; refer to engineering footnotes for precise configurations.
• Reliable Lubrication: Factory-lubricated with MIL-PRF-81322 grease (80% fill minimum) unless otherwise requested, delivering consistent performance and minimizing maintenance.
• Corrosion Protection: Cadmium plating applied to all external surfaces (excluding bore) per AMS-QQ-P-416 specification, preserving dimensional accuracy and resistance to harsh conditions.
• Custom Engineering Available: Options include modified dimensions, non-standard materials, unique tolerances, alternate coatings, and specialized lubrication upon request.

Applications

These guide roller bearings are particularly well-suited for:

• Aircraft control surface mechanisms
• Rail or track-based motion control systems
• Flight deck assemblies and automation devices
• Precision alignment and load guidance systems

Product Variants

• G- Series: Single row construction for standard guide applications where space is limited.
• GD- Series: Double row construction provides enhanced radial and axial load capacity, ideal for more demanding control and guidance systems.

Technical Considerations

• All dimensional specifications are stated in inches unless noted otherwise.
• Bearings are measured and plated to final dimension tolerances post-cadmium coating.
• Seal/shield type must be selected according to application-specific engineering notes (3) and (4).

Ordering and Customization

For specialized environments or performance-critical systems, these bearings can be fully customized to meet unique engineering requirements. Contact our technical team for guidance on choosing or modifying a configuration for your specific application.