Crank Machine Work
- Thread starter Yellowhand
- Start date
- Tags crank machine work
Three tecumseh crankshafts sent by a member...
I've just finished turning them down to 3/4", and trimming or extending them to 2-1/2"...
One already had a 5/16" tapped bore, the other two had 3/8" bores that were cut back, bored and tapped to 5/16" NF, so all three could have clutch retainers added...
They're ready to mill a keyway...
I've just finished turning them down to 3/4", and trimming or extending them to 2-1/2"...
One already had a 5/16" tapped bore, the other two had 3/8" bores that were cut back, bored and tapped to 5/16" NF, so all three could have clutch retainers added...
They're ready to mill a keyway...
Thanks, MBDude...I milled them today at lunchtime...turned out nice, only minor glitch was that deeper woodruff key cut on one of them...still, it'll work just fine...
Do you want to leave them at 2-1/2" long and go with some recessed retainers, or shorten them down a bit?
Standard clutch is only about 2-1/4" wide, so you've got a quarter-inch of shaft poking out...
Do you want to leave them at 2-1/2" long and go with some recessed retainers, or shorten them down a bit?
Standard clutch is only about 2-1/4" wide, so you've got a quarter-inch of shaft poking out...
Man, this one showed me no love...the splines were hardened and I chipped 2 carbide cutting inserts and then smoked 2 HSS 3/16" end mills when I cut the keyway...
The shaft is only 1-3/8" long, so the clutch must be mounted with the sprocket on the outside...I didn't cut a keyway on the retainer to ensure the clutch would be mounted this way...there is no key contact with the shaft if the clutch is mounted with the sprocket to the inside.
The shaft is only 1-3/8" long, so the clutch must be mounted with the sprocket on the outside...I didn't cut a keyway on the retainer to ensure the clutch would be mounted this way...there is no key contact with the shaft if the clutch is mounted with the sprocket to the inside.
