Question about Hobart N50 Stand Mixer

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Hobart n50 i just picked uo an n50 off ebay. it looks like one from the 1940's based on the oil fill in the top front and back plus the old style hobart sticker in the side. It is louder in low then it is in the other two faster speeds. i am wanting to do a rebuild so as not to damage the unit and fix any thing that might have worn out in the last 60 years. I am very hand but it would be nice to have a little guidance so i don't ruin any thing. any help would be appreciated

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  • nra4ever Mar 30, 2008

    the serial number is 1248884, spec is 4749 model is N-50. the serial plate is built into the control area if that helps. looks kind of neat the way all the information is combined into the control plate. thanks for the quick reply.

  • nra4ever Mar 31, 2008

    so far all I have done it take off the big silver ring, tried to punch out the pin on the orbital but it only moved about 1/8 of an inch and i was affraid to hit it again since it did not want to move anymore. i did take off the four big screws that hold it on to the base and took off the back cover held on by two screws. I guess what i want to do it open it up clean up the inside add new grease and replace any parts that may need replaced. i did find what looked like a drain plug on the bottom side of the motor near the orbital. is that to drain or refill or both. i took the screw out only to fina another screw dreeper in the hole. what next dr.?

  • tinkerer dan Nov 19, 2008

    i have a KitchenAid Model G which was made by Hobart and is identical to an old N50. this one is about 1938 vintage. it needs cleaning up and new grease but i cant get the planetary assembly off. i removed the ring and then the shaft pin but the planetary doesnt want to come off the shaft like it does for current model KitchenAid mixers. is the planetary assembly just stuck on the shaft for sitting all these years or is there something else i need to remove first? thanks in advance, dan



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I need the serial #,ml or spec # and the exact model #.Ill help you out.I can tell you right now from your description is the tumbler assembly is worn.

Posted on Mar 30, 2008

  • anthony james
    anthony james Mar 30, 2008

    o.k. where do you want to begin.Have you disassembled anything?Do you want to rebuild the entire transmission?Its expensive.



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1 Answer

I have an old Hobart 5 quart N50 mixer (4749). There is a phenolic gear which is driven by the gear on the motor shaft, and this gear is starting to delaminate at some tooth edges (about 1/8"). ...

The gear has not really changed. It is a fail-safe gear designed to break before the motor is damaged by the transmission being jammed.

As to whether it will last, I can't say. I know of no other sources for the gear other than keeping a watch of Ebay.

Jul 28, 2017 | Hobart N50 Stand Mixer

1 Answer

My hobart n50 runs on the same speed in 1 and 2 and will not engage in 3 .. also sounds louder than do you lube?

Hello Ldl,

I understand that you are having a problem with you 5 quart commercial mixer by hobart. The 1 and 2 are the same speed and you are not getting 3. You also would like to know what oil to use in your machine and how to fill the unit.

To answer you speed question first. The speed is adjusted by the bolt located in the middle of the planetary (the part that turns underneath of the head the attachments hook to). If this bolt is tightened all the way up or to lose it will not allow you to achieve all of the speeds. You will have to adjust this screw many times and turn the machine on to check you speeds. Eventually you will achieve all three speeds.

Before I answer how you lube the machine you need to know what kind of lube to use. The gear box uses a 90 weight gear oil and the planetary uses 140 weight gear oil (grease).

Lubing the gear box with top cover:
1. Remove the top of the gear box (the cover)
2. There is a Round plate with three bolts (do not remove) in this plate there is a disc (looks like a cap seal) use a small screw driver to pry this disc out carefully you will have to put it back once you are done lubing the unit.
Lubing with out a top cover:
1. Remove the switch and gear selector (remember position of gear selector)
2. Fill thru whole in side behind plate removed

Lubing planitary:
1. Remove drip ring
2. Remove the planetary (unscrew bolt in middle)
3. Remove key located in the side of shaft
4. Lube and put back together

Thank you for choosing


Feb 18, 2011 | Hobart N50 Stand Mixer

3 Answers

Hobart N50 Service Manual

Ebay sometimes has used hobart manuals. maybe check

There is no other source for hobart manuals other than the internet.

Sep 09, 2009 | Hobart N50 Stand Mixer

1 Answer

Hobart N50 / KitchenAid Model G: how do i remove planetary?

you need to remove all the back screws then if it doesnt come tap it with arubber mallet it may be seized on

Nov 19, 2008 | Hobart N50 Stand Mixer

2 Answers

Hobart N50 repair books

parts books are available at for free and you might be able to find service manuals on ebay

Oct 22, 2008 | Hobart N50 Stand Mixer

1 Answer

Mystery part to a 1950 Hobart N50 Mixer; serial number 997185

Go to, register, then go to select "food machines" in the Product Group, then "mixers"and look for the Discontinued Products, then find the N-50 mixer drawings, they are all there, even the old ones. Look through the "exploded" drawings for your extra parts. It seems to me that the tech who put this together should know if they belong to this mixer or not. Does he work for Hobart? Or is he a repair person who states that he knows how to repair Hobart products. If he does'n't work for Hobart, these parts may have been on his bench BEFORE he looked at your mixer. A true Hobart Tech has access to specs on ALL models and the ability to access the Service Manuals. If you find this solution helpfull, please rate it. ricardok45

Aug 20, 2008 | Hobart N50 Stand Mixer

1 Answer

How to find the age of a Hobart N50

Hi Anne. Call your nearest Hobart parts place. The parts guys will be able to tell you the age and which plant it was manufactured in in the USA. Another source is the website, look for discontinued products under the food machines group, then select mixers and browse until you find the file that dates machines. One thing to watch for when buying is oil leakage that appears to come from the bottom of the stand. This indicates that the transmission grease is partially separating the oil out of it and it's leaking out of the rear bearing and dripping down. If the leak seems excessive, pass on the purchase. This drip could also indicate excessive wear on the bearings. Also run the mixer in all speeds, if is sounds like a tank approaching, it probably needs a rebuild.

Aug 17, 2008 | Food Mixers

1 Answer

Hobart N50

Some of the N50's were packed with a white grease. It tends to seperate. So the oil portion finds it's way out. It sounds like it is getting into the motor case, and is running down the inside of the column. Hobart now uses a brown clay based grease --- Darina 2.

If the amounts are small, and the mixer is not excessively noisy, I wouldn't be concerned. If you wanted to fix it, the transmission would need to be removed, cleaned, and repacked. For a Hobart tech, 3 hours labor, $45 grease, plus parts.

Jun 19, 2008 | Hobart N50 Stand Mixer

1 Answer

Noisy Hobart N50 Mixer

First, there is a double set screw (one on top of the other - if they are both there) towards the back of the planetary.

Remove the first screw, it should have a normal tip, not pointy. Run the mixer in 1st and adjust the screw, first out then in. Then repeat in 3rd. You should clearly hear a difference.

If not, you probably need to repack the grease in the transmission. The proper grease is called "Darina II". It's expensive ~ $35 per mixer.

Apr 13, 2008 | Hobart N50 Stand Mixer

1 Answer

Hobart N50 Tripped

The reset button is to protect over amping the motor. The N-50 is not a very strong unit, (commercially), but you won't break a gear. If you overload the unit, you'll either trip the overload (reset button), or you will break the taper pin that attaches the planetary to the center shaft.

If you're looking for a small commercial unit, and you're in the US, look into the 10 qt Precision Mixer.

Apr 04, 2008 | Hobart N50 Stand Mixer

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