3/16" x 3/16" x 1-1/2" Rounded Machine Key (Zinc-Plated Steel)

SKU: P-M2248

Machine Key used for securing components onto keyed shafts. It is made from Zinc-Plated Steel for moderate corrosion resistance, measuring 3/16" wide x 3/16" high and 1-1/2" long

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This zinc-plated steel machine key is a critical mechanical fastener used in both Tommy Mat Washer models to transmit torque between a rotating shaft and a hub, gear, or brush assembly. Its rounded ends allow for easy installation into a corresponding keyseat.


Key features and benefits include:


  • Precision Sizing: Measures 3/16 inch by 3/16 inch in cross-section and 1-1/2 inches in length. It is an undersized key, designed for a smooth yet secure fit within standard keyways.
  • Corrosion Resistance: Features a Zinc-Plated Steel construction, offering protection against rust and corrosion in the damp environment of the car wash.
  • Function: Essential for positive power transmission, ensuring that the motor's power is efficiently transferred to the brush and roller assemblies of the mat washer without slippage.
  • Dual Application: Used interchangeably within the mechanical systems of both the Tommy Molded Mat Washer and the Tommy Flat Mat Washer.
  • Product Type: Rounded Machine Key / Square Key
  • Material: Zinc-Plated Steel
  • Width: 3/16 in
  • Height: 3/16 in
  • Length: 1-1/2 in
  • Type: Undersized, Rounded Ends
  • Application: Tommy Molded Mat Washer, Tommy Flat Mat Washer
  • 3/16" x 3/16" Cross-Section: Standard size for securing components.
  • 1-1/2" Long: Common length for mat washer shaft components.
  • Zinc-Plated Steel: Offers protection against rust and corrosion.
  • Rounded Ends: Facilitates quick and easy installation.

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