Value Collection KP1911 Undersized Key Stock 18-8 Ss

Product Description

The VALUE COLLECTION KP1911 is an undersized key stock bar used to secure rotating components such as gears, pulleys, and sprockets to shafts in mechanical assemblies. Manufactured from 18-8 stainless steel, it offers corrosion resistance suitable for wet, humid, or mildly corrosive environments. The bar measures 0.25 inches high by 0.25 inches wide with a 12-inch length, providing material that can be cut to the required key length during installation. Machinists, millwrights, and maintenance technicians working on pump, conveyor, and general industrial drive systems commonly specify this type of key stock.

This key stock is suited for light-duty to medium-duty shaft and hub connections in residential, commercial, and light industrial mechanical systems. Its undersized profile allows for a controlled fit in standard keyways, accommodating tolerances that prevent binding during assembly. Applications include HVAC fan shaft assemblies, pump impeller connections, and general power-transmission equipment where stainless steel is preferred over mild carbon steel for its resistance to rust and staining.

Key Features

• 18-8 stainless steel construction provides corrosion resistance in wet and humid environments
• Undersized profile fits standard keyways with controlled clearance for easier assembly
• 12-inch length allows on-site cutting to the exact key length required
• Square 0.25 inch by 0.25 inch cross-section suits common quarter-inch keyway configurations
• Single-piece quantity allows precise procurement without excess inventory

Compatibility

Designed as a standard undersized key stock replacement for mechanical shaft and hub assemblies using a 0.25-inch square keyway profile across general industrial, HVAC, and pump drive applications.

Installation Notes

Installation is typically performed by a millwright, machinist, or maintenance technician. De-energize and lock out all power sources before disassembling any rotating equipment per OSHA lockout/tagout procedures. Cut the key stock to length using an appropriate metal saw or mill, then deburr all cut edges before fitting. Do not force the key into the keyway with a hammer blow that could damage the keyway or shaft seating surface.