Lovejoy style coupling,,,???

Hey Joe in Manty,,,gosh,,yheys a lot of Joes on here,,,but thas good,,,I think Ole Fred in Pa has the hub and the 13" shaft.
I'll PM you.

I think it is a 3/4" shaft.
Dan

Joe at the time I set up my systems I debated adding a pullie driven hydraulic pump to the d17 from the perspective that without the loader on the tractor it wouldn't be sticking out the front. I decided I wanted both tractors the same so I dropped the idea but I still think a pump mounted line an alternator would look nicer.

Yeah Dan,,,I got that all wrote down and may have to go same route you went,,but still lookin for a set up with the 1" shaft. Most everybody has the set-up with the 3/4" shaft. I guess my set-up must of been the only'ist one they built with the 1" shaft,,,PFFffft,,!!
Hey DWC17 where did you get the set-up you installed on yours and is it a 1" shaft,??

Hey Dan,,Do you remember where you got the drive shaft and the hub for your loader,,??

I bought the pump from surplus center. The bracket I had made by a local shop I am sure if you called a salvage yard they would have one off an individual loader tractor.

.

Edited by Fred in Pa - 15 Mar 2016 at 7:03am

Take a look at a TB Woods Duraflex coupling. I don't have the chart in front of me but will have later today. They take a fair amount of movement and are very easy to install.

If you need any help sizing any coupling feel free to ask, part of my real job is selling them.

Hey Dan,,,well that's an idea bout mating the sprocket/shaft end to this new 3/4" shaft/hub and I had NOT measured for a possible solid coupling yet but do know there ain't a heck of a lot of extra room there,,,,
I don't know what kind of sealing assy there is on the pump but if it is a mechanical seal, there shouldn't be any end play movement or the faces separate and the pumpage will leak and prolly ruin the seal.
I might be wrong,,but I really think the reason the Mfgrs used this type of coupling arrangement for these pumps is so that either the pump/shaft/hub/ could be replaced with out having to remove engine.,,,,?????
Dang,,why do these simple things got to be so complicated,,,??????

I think if you don't allow the coupling to slide towards the motor a little with the spline shaft you will wipe out the front seal in the pump. I know my old shaft showed ware that pointed out it was sliding in and out over time I am assuming this is important to protect the pump.

DANG,,,lots of great info ,,,,The shaft on this tractor is 1",,,13" long with a 1/4" keyway and a sprocket at pump end. The crankshaft end is a 4 bolt hub that is 4" OD and bolt spacing at 2 3/4" with 3/8" bolts (7/16" bore),,,and according to one of the Guys is same as a D17,,,???
   If I switch to the 3/4" shaft,,I will have to buy the hub, shaft and a new 3/4" sprocket,and prolly the dang chain as well!!!,,,,may have to but I'm still lookin,,,,,,
In lookin at the Baum Industrial catalog that Brian mentioned,, there is a weld-on spline bore,,,but the OD is too big and would get into the bolt holes of the hub,,,,CHIT,,,,,there is also a square bore weld-on that might be promising but I could not find the chart that listed the dimensions,,,,,
I'm also thinkin,,, and let me throw this out there for the GURUs,,,,,How bout I machine out the splines in the hub and make a short "stub shaft" with 4 flats and weld this into the hub,,,,,then,,,machine 4 flats on the shaft,,,and make a rigid coupler bout 4" long with 4 allens at each end,,,,??? TEN FOUR,,,????
Keep bringin in these ideas and I'll leave Ya'll alone,,,,,,,,,yeah right,,,!!!

Back in the '90s I ran a feed mill on a turkey farm. The feed grinder had a 30hp 3 phase motor with a Lovejoy coupler. As I recall, only replaced the rubber once in 2 yrs. Just gotta get the right size for the HP.

I bought the 13" X 3/4" shaft which had 6 splines on one end and a keyway on the other along with the crankshaft adapter from e-bay about 3 years ago for my D-17.

crank pullie
front pump drive hub
shaft
That is the set you want but the shaft is too short. It was cheaper for me to buy the short shaft and have it extended don't know why but no one I talked to a few years wanted to cut the splines.

I looked at a Lovejoy when setting up the front pump on my D17.  Didn't have enough room for it after I had the pump mounts made.  A double chain coupler is just as good and takes up a lot less space.
AaronSEIA