Gibraltar C4-40B-G Solid Crank Handle Steel 4 in Center

Product Description

The GIBRALTAR C4-40B-G is a solid steel crank handle designed for manual actuation of machinery, valves, and industrial equipment. It features a 4-inch center-to-center dimension and stands 3.25 inches high, making it suited for applications where a firm, ergonomic grip is required. The hub measures 0.6875 inches in diameter and 0.6875 inches in height, with a reamed bore of 0.375 inches for precise shaft fitment. The 1.25-inch knob diameter gives the operator a positive grip surface. Fabricated from steel, this handle is built for durable service in mechanical and industrial environments. Licensed trades and maintenance technicians install this type of hardware during equipment assembly, repair, or retrofit work.

This crank handle is used in a range of applications including industrial machinery, valve actuators, control panels, and mechanical equipment requiring manual operation. The solid steel construction handles the torque demands of routine operational use. It is appropriate for both light industrial and commercial maintenance settings where a compact, reliable hand crank is needed. The reamed bore ensures a snug, accurate fit on standard shafts, reducing play and improving control during operation.

Key Features

• Solid steel construction for durability in industrial and mechanical environments
• Reamed bore at 0.375 inches for accurate, tight shaft fitment
• 4-inch center-to-center dimension for consistent actuation geometry
• Hub diameter of 0.6875 inches and hub height of 0.6875 inches
• 1.25-inch knob diameter provides positive grip for the operator
• Overall height of 3.25 inches suits compact mounting configurations

Compatibility

Designed as an OEM-style replacement or direct-fit crank handle for industrial machinery, control equipment, and valve actuator assemblies requiring a 0.375-inch reamed bore and 4-inch center-to-center configuration.

Installation Notes

Installation is typically performed by maintenance technicians or millwrights during equipment assembly or repair. De-energize and lock out all equipment before removing or installing the crank handle. Confirm shaft diameter matches the 0.375-inch reamed bore before installation to ensure proper fitment and safe operation. Applicable fastener and hardware standards should be followed per relevant industry codes.