Key Questions to Ask When Ordering Pto Shaft supplier

Despite good maintenance, top quality materials and innovative technology, there will come a time that you need to replace your PTO shaft. After all, safety and efficiency are serious priorities in your work! Power take-off shafts for agricultural machinery and tractors come in various sizes and models: how do you know which PTO shaft you need? Just follow this step-by-step plan to make the right choice.

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Step 1 ' Check the cover of the current model
Check the cover of your current PTO shaft. Manufacturers often detail the size and model on the cover around the PTO shaft. If you're lucky, you won't have to try any further steps.

Step 2 ' Italian or German model?
Often, that cover is broken or missing. What do you do then? Take a closer look at your power take-off shaft: does the shaft have any universal joints on either side, or a wide-angle coupling on a certain side? What model of profile tube is on it? The answers to these questions will give a good indication of whether it is a German or Italian model. Italian models often use triangular tubes and the German variant uses lemon-shaped or star-shaped tubes. With this information, we will know what group of PTO shafts to search in.

Step 3 ' Measure various components
Now take some measurements. Measure the universal joint, which is in the coupling; The Universal joint Cap diameter dimension  and the length of universal joint end of cap to opposite end of cap. On the universal joint you will often find a number to denote the size of the PTO shaft. Measure the profile tube too. The diameter of the sliding rings on the cover is another useful measuring indicator. The cover is often missing or worn, so it is a good idea to measure inside the groove the rings go in.

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Step 4 ' Determine size
Once you have all that information, you can often determine the size of the PTO shaft. This does not tell you everything, because you still have to determine what kind of connections your tractor and machine have. Determine the thickness of the PTO stub and how many splines are on it. Another point to note is whether this PTO has a sliding, neutral or other type of coupling and security for that machine. You will need to take that into account too.

Step 5 ' Determine length
Next, determine the length of the PTO shaft. All power take-off shafts come in a few basic lengths and it is common for them to need to be shortened. There is a lot of difference in the sizes and lengths of the PTO shafts; this is related to the driving force needed. Measure the length from the centre of the universal joint to the centre of the opposite universal joint in the shortest position.

Step 6 ' Setting the Clutch Device
Often the clutch device has a setting marked into the side of the clutch housing. This is something to keep in mind when purchasing a new PTO shaft. You will want to buy protection device with the same torque setting. If you pick the wrong setting, the machine will not function properly and may even suffer serious and expensive damage.

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I would be VERY careful picking the cheaper PTO shaft. As a simple matter of fact - I WOULD NOT PURCHASE OR USE the $100 PTO shaft. Its a matter of simple safety. Most all sites selling reputable farm implements and equipment will have their PTO shafts in the $300 range. There has to be a difference in the quality of the two different shafts and this could very easily be a concern for your safety.

TSC will stand behind their PTO shafts because they come from a known manufacturer with known quality - - I wonder, will Amazon?

I would be VERY careful picking the cheaper PTO shaft. As a simple matter of fact - I WOULD NOT PURCHASE OR USE the $100 PTO shaft. Its a matter of simple safety. Most all sites selling reputable farm implements and equipment will have their PTO shafts in the $300 range. There has to be a difference in the quality of the two different shafts and this could very easily be a concern for your safety.

TSC will stand behind their PTO shafts because they come from a known manufacturer with known quality - - I wonder, will Amazon?

100% agree

Stick to name brands that are either North American or European made. It's cheaper to spend an extra $200 for quality than $2,000 in tractor repairs.

There are a multitude of PTO shafts available, different shaft styles, different overload protection and most importantly different HP ratings.
Most post hole diggers are using low HP rated PTO shafts, which can be purchased relatively inexpensively.
When comparing prices compare power ratings.

That ^^^ is the RIGHT answer right there...

SR

BTW, when I needed my last pto shaft, I went to a guy that sells "used farm equipment" and he sold me a HIGH QUALITY pto shaft in excellent shape for $45.00...

Here are some choices:
- PTO Shaft-PTO Shafts | Agri Supply AGMATE which is Walterscheid China
- Tx1 88/152 Pto Shaft - 1 1/4 Round Implement End Eurocardan

Both come OEM on many of the post Hole diggers that are shear pin.

Great post. I was going to suggest looking at ASC, he has done all the work for you.

I wouldn't trust Amazon for something like this (and 10,000 other things). But TSC prices are sometimes laugh-out-loud. When you can buy a decent new PHD for $800 I have a hard time believing that the PTO shaft has to cost $300. COMER is the Italian based world wide company that many quality pieces of farm equipment use. They manufacture pto shafts, gearboxes, etc.

On youtube there are COMER videos on the correct way to adjust the length of the pto shaft plus other informative topics
How to grease the guard ring bearing and the universal joint on pto drive shaft - Comer industries - YouTube

Remember, if the pto shaft on a post hole digger breaks you are likely close by.
Sometimes when they break at the implement end they flail around like a Knight's war weapon.

There is an important relationship between the angle you ask the pto joints to work and their life expectancy.

The life expectancy range is from 20 hours at a high angle to 450 hours on a minimum angle.

Replacing the joints before they break will avoid the more costly problem of bent yokes





Buying COMER parts is easy and you can just change the actual shaft if you need to increase the length

Dave M