Gibraltar 88365622 Standard Fixture Key Steel 1/4 in

Product Description

The GIBRALTAR 88365622 is a standard fixture key made from steel, designed to seat in keyways and prevent rotational slippage between shafts and mating components. It measures 3/4 inches long by 1/2 inches high and is compatible with 1/4-inch fastener diameters. The width ranges from 0.5615 to 0.562 inches, providing a snug fit in standard keyway slots. This type of key is a fundamental mechanical fastener used in drive assemblies, pump shafts, fan hubs, and similar rotating equipment found across HVAC, industrial, and general mechanical applications. Installation is typically performed by maintenance technicians and millwrights working on shaft-driven equipment.

The 88365622 fixture key is suited for use in residential and light commercial mechanical systems where positive shaft-to-hub engagement is required. Common applications include fan assemblies, blower wheels, pump impellers, and motor drive couplings. It fits standard 1/4-inch keyway configurations and is sold as a single piece, making it practical for direct replacement in field service scenarios.

Key Features

• Steel construction provides durability in rotating shaft applications
• Compatible with 1/4-inch fastener diameter keyway configurations
• Width tolerance of 0.5615 to 0.562 inches for a precise keyway fit
• Compact form factor at 3/4 inches long by 1/2 inches high
• Sold as a single unit for direct field replacement use

Compatibility

Designed as a standard fixture key for use in 1/4-inch keyway applications across shaft-driven mechanical assemblies including fan hubs, blower wheels, and pump couplings.

Installation Notes

Installation should be performed by a qualified technician. De-energize and lock out all electrical power and isolate any fluid systems before servicing rotating shaft components. The key should be seated fully in the keyway slot before pressing or securing the hub onto the shaft. Avoid forcing a misaligned key, as this can damage the keyway and lead to premature failure.