A-Drive 40:75 Drive Shaft Key Stock

  • Fits all A-Drive 40:75 double worm gear reducer gearboxes
  • Made from hardened, plated steel
  • Fits snuggly into the key stock groove for the drive pipe
  • Measures 3 1/2 in. long x 1/4 in. wide x 1/4 in. tall
  • Replacement part

$4.99

About this Item

  • Fits all A-Drive 40:75 double worm gear reducer gearboxes
  • Made from hardened, plated steel
  • Fits snuggly into the key stock groove for the drive pipe
  • Measures 3 1/2 in. long x 1/4 in. wide x 1/4 in. tall
  • Replacement part

A-Drive 40:75 Drive Shaft Key Stock

The A-Drive 40:75 Drive Shaft Key Stock slides into the slot on the double worm reducer gearbox where the drive pipe comes into the gearbox. Replacement part for all 40:75 enclosed gearboxes. Measures 3 1/2 in. long x 1/4 in. wide x 1 /4 in. tall. Made from hardened, plated steel and cut to length for the input size.

What is a key stock?

Key stock is a small metal block or wedge inserted between a shaft and the hub of a pulley, gear, sprocket, or other rotating power devices. It provides driving torque and prevents movement. One part of the key fits into a precut slot in the shaft known as a key seat. The remainder slides into a groove in the hub called a keyway.

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