G / GD Series

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.