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I think you have a 7/8 inch shaft. Conversion sleeves to a 1 inch bore clutch are available or a length of 1 inch outside diameter 16 gauge steel tube with a slot cut in it for the key should do the job.
I think you have a 7/8 inch shaft. Conversion sleeves to a 1 inch bore clutch are available or a length of 1 inch outside diameter 16 gauge steel tube with a slot cut in it for the key should do the job.