Need Some background on Clutches

[Ronnin]

I had a customer the other day inquire about TwinDisc clutches he's trying to buy parts for. This is out of my realm of the usual say to day stuff I sell but I would like to try to help him because he's a good customer. This particular clutch no longer has anything to ID it so I don't have a part number. I tried looking on TD's website but there isn't any exploded diagrams for me to figure out what I need. Does anyone here mess with these? I'd like to educate myself on them a bit before I just refer him to someone else.

 

[Baluncore]

Sorry about the delay...

What make and model equipment was the clutch from?
A twin disc clutch, or twin plate clutch is often used on a tractor to disconnect both the PTO drive and the drive to the transmission and wheels using one action.

Measure the outside diameter of the two clutch plates.
Measure the plate thickness.
Count the number of teeth on the spline.
Measure the spline inner and outer diameter.

The disc diameter and spline tooth count is usually enough to reduce the search for replacement friction plates.
That may also lead to the identity of the clutch manufacturer.

 

[Ranger Mike]

The dual and 3 disc clutch setups are for high horsepower racing applications typically. Tilton would be a good source .
https://www.pegasusautoracing.com/productdetails.asp?RecID=30664
Dual clutch are used for increased towing where a large clutch diameter is not practical. you increase surface area but keep footprint of the bell housing small.

 

[Averagesupernova]

Some years ago I was looking for a clutch that was used in a piece of ag equipment. The disk diameter was eleven inches. The company was out of business but I knew that clutch had to be 'standard' but couldn't find anyone who knew anything about them or what to spec. Finally I had a mechanic who ran a small shop hand me a piece of paper with a phone number on it and simply said: Call these guys. I dialed the number not knowing who I would even be connected to and it turned out to be Rockford Clutch Company. I told the lady what I was after, she asked the disk diameter and they shipped the correct clutch. No machine model number, no part number, nothing except the disk diameter. I was amazed.

 

[essenmein]

Sorry about the delay...

Understatement of the week.