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Old 06-19-2018, 10:29 AM
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Al Schober Al Schober is offline
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The 'key' is that the key fit the shaft well. If the shaft has a 1/4" keyway, then you want to use a 1/4" key. It should be a press fit into the shaft. The part of the key that fits into the coupling can be cut down to 3/16". The key can be a bit loose in the coupling with no issues.
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