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Guardian Gear Grip™ Couplings for Airport Truck-Mounted Baggage Conveyors
A leading manufacturer of airport ground support equipment needed a unique coupling
solution for its line of mobile baggage and cargo conveyors. The diesel- or electric-
powered belt loaders support a wide range of commercial aircraft. The coupling is
positioned between the drive engine/motor and a hydraulic pump that raises and lowers
the conveyor belt ramp as needed.
After a review of various coupling alternatives, the OEM determined that unique Gear
Grip couplings available only from Guardian Couplings, with a large 7.5 degrees of
angular misalignment, met its application requirements. The lightweight and compact
couplings utilize a three-piece highly flexible design which includes two hubs and an
elastic sleeve. The non-corrosive metal ends and rubber element provide a long service
life that does not require lubrication or maintenance. The couplings are designed to
handle the shock, cycling loads and vibration that produce extreme wear in other
coupling styles.
The Gear Grip coupling’s in-shear sleeve design acts as a safety feature in the event
of an overload condition. If the coupling were to fail, only the coupling sleeve would
need to be replaced. This feature can prevent damage to the expensive drive system
components.
The size 76PG coupling for this application featured a reinforced neoprene sleeve,
sintered steel hubs and 1,080 in.lb. nominal torque. The coupling’s hubs included a
custom cross-clamp feature for enhanced, non-slip shaft mounting
Highlights
- hree-piece, highly flexible
in-shear design
- 7.5 degrees of angular
misalignment
- Lightweight and compact
- Reinforced neoprene sleeve
- Sintered steel hubs
- 1,080 in.lb. nominal torque
- Custom cross-clamp
feature