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1/4" x 1/4" x 1-1/4" Machine Key (4140 Steel)
SKU: P-M3027
The P-M3027 is an undersized Form B machine key precision-machined from 4140 Alloy Steel. This specific alloy (Chrome-Moly) provides significantly higher tensile strength and fatigue resistance compared to standard carbon steel keys, making it ideal for the high-torque, repetitive start-stop cycles found in car wash machinery.
The "Undersized" classification ensures a slightly easier fit into standard keyways (0.2480" to 0.2500" actual width), allowing for straightforward installation while still maintaining the tight tolerances required by ANSI B17.1 standards.
Tommy Car Wash System Application
This key is a critical mechanical fastener used across several specialized Tommy systems:
- Tommy Flat Mat Washer: Secures drive components within the mat cleaning mechanism.
- Tommy Molded Mat Washer: Used in the transmission of power to the washing rollers.
- Tommy Electric Stub Shaft Retrofit Kit: Part of the assembly used to upgrade or repair electric motor shaft connections.
- Product Type: Undersized Machine Key
- Material: 4140 Chrome Alloy Steel
- Finish: Plain
- Shape: Square (Form B)
- Dimensions: 1/4 inch x 1/4 inch x 1-1/4 inch
- Width/Height Range: 0.2480 inch to 0.2500 inch
- Length Range: 1.2200 inch to 1.2500 inch
- Standard: ANSI B17.1
- Application Shaft Diameter: 15/16 inch
- Weight: 0.022 lbs
- Compliance: RoHS Compliant
- High-Strength Alloy: Constructed from 4140 Alloy Steel for superior durability and resistance to shearing under heavy loads.
- Undersized Fit: Specifically designed with a slightly undersized tolerance to ensure the key can be seated into keyways without excessive force or filing.
- Precision Machined: Meets ANSI B17.1 specifications for reliable mechanical performance in industrial drive assemblies.
- Versatile Application: A standard component for mat washers and electric motor retrofit kits within Tommy systems.