MikMacMike 479 #26 Posted December 24, 2019 Hmmm they must have some specs on each of them....really would be a good thing to know right! Share this post Link to post Share on other sites
tom2p 2,394 #27 Posted December 24, 2019 9 minutes ago, MikMacMike said: Hmmm might be a good thing to research if someone was going to use the hydro for heavier pulling. I switch mine out to the 8 speed cuz I heard they were a little more bullit proof. I sure hope the sunstrand is the stronger one hahahaha I sure put mine through beasty pulls. could possibly pull house off the foundation with 8 spd in low range lol 1 1 Share this post Link to post Share on other sites
pfrederi 17,672 #28 Posted December 24, 2019 3 minutes ago, MikMacMike said: Hmmm they must have some specs on each of them....really would be a good thing to know right! What specifcation would that be. Hydro pressure??? its not the pressure necessarily it is how well it is used.... There is going to be far mare variance in "Strength" based on age and wear and tear than on original design. None of these are new some are pushing 55 years old. Share this post Link to post Share on other sites
MikMacMike 479 #29 Posted December 24, 2019 Yes of coarse.....but the origonal specs when they were 1st produced will give an idea what they orgonally were designed for and then factoring age in will definately give one an idea.....its no diffrent then when I was looking up a 1957 supercharger that origonally came on my Studebaker 289 cu in....I chack the specs, that gives me always an idea on how far its able to be pushed or just what it is capable of.....some items like piston rods can become stronger with age because of a stressreleiving affect with use and are stronger then when there new.....unless the new are yes shot peened. Either way one day if I think of it I will get some specs. I tend to trust this type of info and have had to when knoledge was limited, besides it becomes a saftyu factor too. Id think any hydrolic pump, motor, cylinder, hoses and fitting ends come with information. Agreed? Besides Id trust 55 year old equipment in a proper working order, properly sealed, and bushed clearances to spec tolances, more so then almost anything that comes off the line today. Share this post Link to post Share on other sites
R Scheer 502 #30 Posted December 24, 2019 Fyi specs from Eaton for their hydrostatic transmissions. Hydraulics Hydrostatic Transmission Eaton Light Duty Hydrostatic Transmission (Models 6, 7 and 11) Eaton Light Duty Hydrostatic Transmission (Models 6, 7 and 11) Eaton light-duty hydrostatic transmissions are total all-in-one packages consisting of a variable displacement radial ball piston hydraulic pump, a fixed displacement radial ball piston hydraulic motor and a full valve system. With integrated aluminum cooling fans and a ball piston design that is less sensitive to overheating, this pump and motor package delivers precise, reliable and incredibly responsive single-lever control, even in harsh applications. The result is simpler design, operation and maintenance for lawn tractors, concrete saws, agricultural sprinklers and more. Product Features One lever controls both speed and braking for positive braking action All-in-one design simplifies product by eliminating complex linkages, leaks from external lines, external high pressure lines and separate drive components Available in three models: Model 6 is designed primarily for light-duty applications up to 1.9 kW (2.5 hp) output for continuous operation Model 7 expands on the Model 6 but delivers significant noise level reductions under high torque or load conditions Model 11 covers applications with engines rated at 7.5 – 15 kW (10-20 hp), or electric motors up to 7.5 kW (1 hp), each with max speeds up to 3,600 rpm Technical Information Model 6/7 Transmission: Displacement (Theoretical) Pump (Variable) - 0 - 7,6 cm3/r [0 - .465 in3/r] Motor (Fixed) - 12,6 cm3/r [.767 in3/r] Speed Input (Maximum) - 3600 RPM Output - 0 – 2150 RPM Kw/Horsepower, Input (Max.) @ 3600 RPM - 3 Kw [4 HP] Torque, Output Continuous - 14 Nm [120 lb-in] Intermittent - 20 Nm [180 lb-in] Peak - 27 Nm [240 lb-in] Operating Temperature (Max. Cont.) - 82° C [180° F] Model 11 Transmission: Displacement (Theoretical) Pump (Variable) - 0 -18,9 cm3/r [0 - 1.15 in3/r] Motor (Fixed) - 34,3 cm3/r [2.09 in3/r] Speed Input (Maximum) - 3600 RPM Output - 0 - 1950 RPM Kw/Horsepower, Input (Max.) @3600 RPM - 15 Kw [20 HP] Torque, Output Continuous - 31 Nm [360 lb-in] Intermittent - 61 Nm [540 lb-in] Peak - 81 Nm [720 lb-in] Operating Temperature (Max. Cont.) - 82° C [180° F] I'm making the assumption that these Model 7 and 11 are the same ones Wheelhorse used. The specs on the model 7 leave me wondering, seems low. Share this post Link to post Share on other sites
ebinmaine 67,291 #31 Posted December 24, 2019 40 minutes ago, R Scheer said: The specs on the model 7 leave me wondering, seems low. I was thinking the same thing Share this post Link to post Share on other sites
MikMacMike 479 #32 Posted December 25, 2019 Hamg on a sec brodereiers...you have to remeber this is before the gear reduction happins right.....right now Im too tired to look up running brake tork figures for each motor but I am just guessing the K 321 has to be around or over 20 to 30 fr bounds at a sertain rpm....this is another reason why I am still amazed at certain advertising figures all they want to advertise is horse power, like I always say horspower is a timed mathimatical figure derived ultimately by tork.....If I build a motor I start with Tork, if Im using it to pull hard then I am not concerned at all about horspower, if I want it to rev up instantly then yes horspower comes into play....but mind this, you can have oodles of horsepower and weak tork.....you really are not going anywhere fast.....if you have gobs of tork then you WILL get there fast. Yes it is far more involved then this and we play with this all the time comparing SBC to BBC for the drag strip. Now for what we are getting at with hydro stats and I will mention....Thank you R scheer for getting this info up......you get a super hi 5 bro. So yes it sais a certain in ft pounds of tork at a said rpm, there is a reg working a allowed intermittent and yes always a max that they have tested and recorded all figures......personally I think these figures are at least close to accurate.....remember were not talking a V* here, this is a single cylinder and please toss Horse power out the window....its as usless as **** on a bull. So lets say for instance we are running a motor with only 10 ft pounds of tork, it is transfered via a belt to the hydro.....the hydro manipulates the speed, then it is transfered via gear reduction to the diferential.....lets say ....and remeber hydro gearing is going to be different then standard gearing too, anyways now lets say just for argument sakes My hydro is running roughly 5:1 ratio....I really dont know hydro specs I only have standard tranny specs....anyways at 10 ft pounds at what ever rpm I am now up to 50 ft lbs at the axcel, if I am running say 30 ft lbs like I think might be close to what a K321 produces....whoaaaaa I am at ONE HUNDRED & FIFTY....yes 150 foot pounds of wheel horse POWER, no pun intended hehehehe, That is comparible if not more then my chevy Tracker engine puts out at its peak tork right at the crank, yes before the tranny....im just trying to give you comparibles thats all. Anyways to me the eaton seems to be a great contender.....Id still like to see apples for apples a comparison between Suntrand, and eaton. And I think the info that becomes available will help to make most dicissions on which hydro to go with even if you had to customize. As for being origonal....then you follow the specs that you nominclature or modle # dictates....but thats for sho puppies, Wheel horse yes looks good dont get me wrong, but it was made to work and work dam hard and if I can tweek a bit more with out blowing a particular item up on the beast, I will definately put it on....I think that was the origonal wheel horse image, outlook or what ever you want to call it, it was simply one of the best on the market, and yes I guess I am biased....sorry you green giant, boys hehehehe, a horse will always out do a deer. Share this post Link to post Share on other sites
R Scheer 502 #33 Posted December 25, 2019 I agree the transmission is just one element of the tractor, and you have to look at the whole tractor as a system to find out whethor it will do what you need. Specs for the Eaton vs the Sundstrand were being discussed, and I remembered seeing Eaton had the specs on their website. Figured I'd share them. Though based on these specs I lucked out when I bought the 312h for pulling my boat, definitely the better transmission for my use. Share this post Link to post Share on other sites
rjashley 5 #34 Posted December 26, 2019 On 12/23/2019 at 9:15 PM, Stepney said: Which is better for your application? This depends on what you want to do with it. For mowing and constant speed change and reverse work, nothing beats a hydro. However in this case, a 417-A. Someone more enlightened can shed some light but I believe the suffix A means auto trans manual lift. This would be the Eaton 7 transmission and it is a generally weak unit. Suffix H would mean auto drive and hydro lift. These units were much stronger. All that being said, the 416-8 is a gear drive with a 16hp kohler single, and that combination is tough as nails, just a little slower about doing it's thing. Plowing snow for the most part. Share this post Link to post Share on other sites
rjashley 5 #35 Posted December 28, 2019 (edited) Didn,t buy the 417 but did buy the plow. Thanks for the info on this site I found what I was missing. The bracket for the back axle. Awesome info. Many thanks to all that helped me out. Now I,m going for the snow blower. P.S. I will likely need help with this too. Happy New Years everyone. Edited December 28, 2019 by rjashley Can,t spell Share this post Link to post Share on other sites
rjashley 5 #36 Posted December 28, 2019 On 12/24/2019 at 1:21 PM, tom2p said: agree and according to my therapist - the RedSquare group - it's better to keep both The tractor was junk. Share this post Link to post Share on other sites
rjashley 5 #37 Posted December 28, 2019 On 12/24/2019 at 9:33 PM, MikMacMike said: Hamg on a sec brodereiers...you have to remeber this is before the gear reduction happins right.....right now Im too tired to look up running brake tork figures for each motor but I am just guessing the K 321 has to be around or over 20 to 30 fr bounds at a sertain rpm....this is another reason why I am still amazed at certain advertising figures all they want to advertise is horse power, like I always say horspower is a timed mathimatical figure derived ultimately by tork.....If I build a motor I start with Tork, if Im using it to pull hard then I am not concerned at all about horspower, if I want it to rev up instantly then yes horspower comes into play....but mind this, you can have oodles of horsepower and weak tork.....you really are not going anywhere fast.....if you have gobs of tork then you WILL get there fast. Yes it is far more involved then this and we play with this all the time comparing SBC to BBC for the drag strip. Now for what we are getting at with hydro stats and I will mention....Thank you R scheer for getting this info up......you get a super hi 5 bro. So yes it sais a certain in ft pounds of tork at a said rpm, there is a reg working a allowed intermittent and yes always a max that they have tested and recorded all figures......personally I think these figures are at least close to accurate.....remember were not talking a V* here, this is a single cylinder and please toss Horse power out the window....its as usless as **** on a bull. So lets say for instance we are running a motor with only 10 ft pounds of tork, it is transfered via a belt to the hydro.....the hydro manipulates the speed, then it is transfered via gear reduction to the diferential.....lets say ....and remeber hydro gearing is going to be different then standard gearing too, anyways now lets say just for argument sakes My hydro is running roughly 5:1 ratio....I really dont know hydro specs I only have standard tranny specs....anyways at 10 ft pounds at what ever rpm I am now up to 50 ft lbs at the axcel, if I am running say 30 ft lbs like I think might be close to what a K321 produces....whoaaaaa I am at ONE HUNDRED & FIFTY....yes 150 foot pounds of wheel horse POWER, no pun intended hehehehe, That is comparible if not more then my chevy Tracker engine puts out at its peak tork right at the crank, yes before the tranny....im just trying to give you comparibles thats all. Anyways to me the eaton seems to be a great contender.....Id still like to see apples for apples a comparison between Suntrand, and eaton. And I think the info that becomes available will help to make most dicissions on which hydro to go with even if you had to customize. As for being origonal....then you follow the specs that you nominclature or modle # dictates....but thats for sho puppies, Wheel horse yes looks good dont get me wrong, but it was made to work and work dam hard and if I can tweek a bit more with out blowing a particular item up on the beast, I will definately put it on....I think that was the origonal wheel horse image, outlook or what ever you want to call it, it was simply one of the best on the market, and yes I guess I am biased....sorry you green giant, boys hehehehe, a horse will always out do a deer. Wow. You know you,re stuff. I am sold on the Onan engines as they are made my Cummins. Can,t go wrong with that. 1 Share this post Link to post Share on other sites
lynnmor 7,302 #38 Posted December 28, 2019 34 minutes ago, rjashley said: Wow. You know you,re stuff. I am sold on the Onan engines as they are made my Cummins. Can,t go wrong with that. Of course Onan and Linamar produced the engines used in our tractors. Cummins bought the Onan generator line but they made no changes to the Performer engines, I guess they wanted at least one good product. Share this post Link to post Share on other sites