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MR HELLO 3/4' to 1' Shaft Adapter Shaft Sleeve Pulley Sleeve Bushing with Key Stock Bore Reducer Steel Shaft Sleeve

4.6 (4) Write Review
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$13.99

$ 7 .99 $7.99

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  • 3/4 inch to 1 inch Crank Sleeve Adapter with Step Key
  • The steel shaft adapter to convert a crankshaft from 3/4 to 1 inch shaft. The adapter is approximately 2.3 inches long and includes the step key needed to go from the 1/4 in key way to the 3/16 key way.
  • Alters motors with a different diameter shaft, Alters pulleys for a different speed or belt.
  • Reduces the necessity of buying a new motor or pulley to maintain existing components and speed/power requirements.
  • Adapts larger wheel bores to smaller axles, works with Gas Engine Crank Shafts to enlarge the crank diameter to fit pulleys, gear boxes etc.


Specification:

Condition: 100% Brand New

Product Name: 3/4 inch to 1 inch Crank Shaft Sleeve Adapter

Material:High quality stainless steel

Color :Silver

Part's specification:

· Sleeve inside diameter 3/4”

· Sleeve outside diameter 1”

· Sleeve length is about 2.3”

· Sleeve Keyway slot 3/16”

· Step Key Length is about 1.8

Features:

Will fit ANY motor with a 3/4" shaft and 3/16" keyway

This steel shaft adapter is used to convert a crankshaft from 3/4" to 1" shaft

The adapter is approximately 2.3 inches long and includes the step key needed to go from the 1/4 in key way to the 3/16 key way. This allows you to use your old clutch or pulley on a new engine

You may need to use a small hammer to gently tap it in to place. It is intended to be a tight fit! If it is not tight it will not last. The wider portion of the key sits in the adapter


angela holmes
Reviewed in the United States on October 21, 2024
Adapter shaft size was fine. The key itself failed at some point. Had to get a pry bar and yank the crap out of the adapter sleeve, ruining the gasket on the output shaft of the motor to be able to get a jaw puller set on there (the sleeve is too close to the crankcase to get most jaw pullers on it). The motor had jumped time so luckily it was already ruined. However if that was not the case, it would have junked the motor in replacing.
Chuck
Reviewed in the United States on April 16, 2024
Filed slightly on the edges an fits perfectly with no issues.
ammaluia
Reviewed in the United States on May 25, 2022
Adapted a 3/4 inch crankshaft to a 1 inch fan bore hub on a big leaf blower. The sleeve was a very good, zero apparent wobble fit. The key was tight but that's good. The key did not survive the first 2 hours before shearing off, but that protected the engine from a huge potential failure. Taking it all apart again was a huge PITA, and I damaged the sleeve, so am getting another of the same. I hope it lasts longer this time around.
Nick
Reviewed in the United States on May 14, 2022
Its working. Will update review if any issues. The key seems it could be a bit thicker