AgTalk Home
AgTalk Home
Search Forums | Classifieds (179) | Skins | Language
You are logged in as a guest. ( logon | register )

educate me on 540 vs 1000 rpm
View previous thread :: View next thread
   Forums List -> Machinery TalkMessage format
 
EricinGa
Posted 7/17/2012 15:48 (#2490779)
Subject: educate me on 540 vs 1000 rpm



Watkinsville, Ga.		I'm really ignorant of the differences between a 540 and 1000 rpm shaft and their applications. What would you guys rather have on a batwing mower and why.

Thanks,
Eric
Top of the page Bottom of the page
bspring2
Posted 7/17/2012 16:02 (#2490794 - in reply to #2490779)
Subject: Re: educate me on 540 vs 1000 rpm


Minier, Illinois		Someone correct me if I am wrong, but I think 1000 rpm equipment is used to reduce the torque that is transmitted to the implement from the tractor. They are generally used on equipment that is intended to be used on high horsepower tractors to keep from tearing up gearboxes and other PTO driven parts. I would say that it would depend on the size of tractor that you will be using. If it is a higher HP tractor then you would want a 1000 rpm mower. If you are using a smaller tractor you would want a 540 rpm.
Top of the page Bottom of the page
Trent2520
Posted 7/17/2012 16:03 (#2490797 - in reply to #2490779)
Subject: RE: educate me on 540 vs 1000 rpm



Statesville, NC		It depends on the horsepower of the tractor and size of the implement. Horsepower is a factor of torque multiplied by speed. With X amount of torque on the shaft, if it is turning 1000 rpm it is transmitting nearly double the horsepower of 540 rpm. 100 horsepower is about the practical limit for 540 rpm. On many implements where they offer both, the 1000 rpm drivelines are sized smaller, yet still transmit as much power as the 540 drivelines, because they are turning faster, and have more gear reduction at the implement gearbox. On a rotary cutter the blades will turn about the same speed, with either a 540 or 1000 driveline, because the gearboxes are geared different. What size tractor and cutter are you talking about, and what are you cutting?
Top of the page Bottom of the page
EricinGa
Posted 7/17/2012 16:13 (#2490813 - in reply to #2490797)
Subject: RE: educate me on 540 vs 1000 rpm



Watkinsville, Ga.		pastures mainly - sometimes they get away from us depending on what else is going on but not heavy duty mowing. It would typically be behind a 100 hp or less tractor. Is there anything to the story of 1000 rpm shafts being tougher on u-joints, tractor guts, etc... when turning?
Top of the page Bottom of the page
Trent2520
Posted 7/17/2012 16:23 (#2490831 - in reply to #2490813)
Subject: RE: educate me on 540 vs 1000 rpm



Statesville, NC		540 should be ok with under 100 hp. I like a cv driveline for turning. The hardest thing on a batwing is hitting the ground going over the crest of a hill or uneven ground. I like to run the front a little higher than the rear, because of the length from the hitch to the rear wheels.
Top of the page Bottom of the page
EricinGa
Posted 7/17/2012 16:39 (#2490853 - in reply to #2490831)
Subject: RE: educate me on 540 vs 1000 rpm



Watkinsville, Ga.		good points, thanks
Top of the page Bottom of the page
Trent2520
Posted 7/17/2012 16:45 (#2490857 - in reply to #2490853)
Subject: RE: educate me on 540 vs 1000 rpm



Statesville, NC		I bought a new Woods batwing last year in Georgia from here: http://www.gadeerfarm.com/default.htm They had some carryover models from the year before, and very good prices. Well worth my drive from NC.
Top of the page Bottom of the page
krantz
Posted 7/17/2012 18:56 (#2491075 - in reply to #2490853)
Subject: Re: educate me on 540 vs 1000 rpm


NM		Do you have other implements with pto's ? I would get whatever matched them so you would not have to change them much.
Top of the page Bottom of the page
JLynn
Posted 7/17/2012 17:10 (#2490910 - in reply to #2490813)
Subject: RE: educate me on 540 vs 1000 rpm


NW VA

Just keep in mind that cv shafts are a pain to hook/unhook if you plan to do that much, and they can twist 540 tractor shafts when turning under load.

Top of the page Bottom of the page
twraska
Posted 7/17/2012 19:32 (#2491132 - in reply to #2490910)
Subject: RE: educate me on 540 vs 1000 rpm


Wallis, TX		Personally I'd try to stay away from a CV joint because of cost and go with a regular u-joint. However, its either me or my son on the shredder so we just turn wide and never have an issue. Put a driver on it and let him keep turning sharp and he'll have problems with a regular one.
Top of the page Bottom of the page
prmckay1
Posted 7/18/2012 03:02 (#2491908 - in reply to #2490779)
Subject: Re: educate me on 540 vs 1000 rpm


Lone Wolf, Ok		Smaller shafts can be used to transmit the same HP @ Higher RPM -- There was some formula (I've long forgotten it) that went through this --
Top of the page Bottom of the page
150 farmer
Posted 7/18/2012 04:01 (#2491920 - in reply to #2491908)
Subject: Re: educate me on 540 vs 1000 rpm


Pontiac, IL.		As stated above, get whatever matches your tractors best. My first Bush Hog batwing had a 540--no problems, The Bush Hog I am running now is identical, only 1000 RPM. Did this so we could use it on different tractors (some with only 1000) I mow a lot of road ditches, and I really LIKE the CV joints. They run much smoother when turning. I know they are more expensive to replace, if you have to replace them, but my mower is 6 years old, and has mowed hundreds of miles of ditches, and I have yet to replace one.
Top of the page Bottom of the page
Rawleigh
Posted 7/18/2012 11:13 (#2492360 - in reply to #2491920)
Subject: Re: educate me on 540 vs 1000 rpm



White Stone, Virginia		If you are going to be hooking and unhooking it a lot I would avoid the CV joints. They weigh a ton and are a pain to get on and off by yourself. If you are young and strong they may be alright for you.
Top of the page Bottom of the page
Jump to forum :
Search this forum
Printer friendly version
E-mail a link to this thread

(Delete cookies)