machineworks
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Does anyone make an adapter to convert the 15/16" 10 spline rear PTO shaft to 1 3/8" 6 spline?
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The good news is yes. The bad news is they're very expensive. I can't quote a price. Hub City Gear has a gear box that slips over the Cub PTO shaft, reduces the RPM to 540, and reverses the rotation. I think it centers the output shaft too.
Goto the PTO section of their website. You can order direct or go through any bearing supply house. I hope it is still in production.
Jim Becker
Well-known Member
Long since out of production. Once in a while one shows up on eBay.
Basically, there are two adapters as described above:
1. A gearbox that reverses the PTO and slows it to the standard 540 RPM. These can only be found used, and are very rare and expensive.
2. A sleeve that fits on the 10-spline shaft and is 6-spline on the outside. You can still find these, and they are cheap. The only problem is that the PTO still spins backwards, and at 1800RPM.
If you are trying to run regular PTO equipment, then #1 is your only choice. #2 will ruin anything you try to run, and might even damage the Cub.
#2 is only useful if you have a Cub implement that is missing the PTO shaft. New shafts with the 10-spline hub don't seem to be available. With the sleeve you can use a regular PTO shaft.
1. A gearbox that reverses the PTO and slows it to the standard 540 RPM. These can only be found used, and are very rare and expensive.
2. A sleeve that fits on the 10-spline shaft and is 6-spline on the outside. You can still find these, and they are cheap. The only problem is that the PTO still spins backwards, and at 1800RPM.
If you are trying to run regular PTO equipment, then #1 is your only choice. #2 will ruin anything you try to run, and might even damage the Cub.
#2 is only useful if you have a Cub implement that is missing the PTO shaft. New shafts with the 10-spline hub don't seem to be available. With the sleeve you can use a regular PTO shaft.
Andy Martin
Well-known Member
You can build a two gear gearbox pretty easily to reverse the speed and the direction however you still don't have much power from a Cub. a belly mower for a Cub is the best bet and takes the 1,800 RPM input.
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