- Location
- 200 miles N,NW of New York
Westlakes would have them
Ransomes plough
- Thread starter Petetheploughman
- Start date
Westlake has them on the shelf. Might well be one of the only places to get them unless you have a local dealer who used to sell Dowdeswell.
Will check those frame bolts today. 5/8 is quite close to M16. Don’t try M20 as a substitute for 3/4 though or you will spoil things altogether.
Petetheploughman
Member
- Location
- The West Country
Has anybody ever welded on bushes to stop any play in worn cross shaft brackets?
Yes but not too long and put a grease nipple in for good measure. Tack them in situ very carefully otherwise they will mis-align and bind.
Petetheploughman
Member
- Location
- The West Country
Will any steel tube do as long it's a similar size for the cross shaft the slide through it or did you use steel collars?
I have some seamless steel tube but locking collars will do just as well.
Petetheploughman
Member
- Location
- The West Country
Would you use 1 3/4 collars or 45mm?
Either would do but 45mm gives a bit of wriggle room so would be inclined to use them
Petetheploughman
Member
- Location
- The West Country
Here is another question about thread size. Do you know what size this thread is? What is the closed size thread available to this? It is off a TS 59E wheel.
- Location
- 200 miles N,NW of New York
At a guess 1"unc
The furrow width adjuster is 7/8 acme or very similar but with rounded crests, and the depth wheel adjuster is 1” whether it be UNC or Whitworth. If the boss is whitworth then unc will be tight in it. Will check it out tomorrow.
Which ever way it will be better than metric thread.
Which ever way it will be better than metric thread.
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Anything is better than metric! Too coarse for hard materials,and too fine for soft.
Just been and checked a few bosses from threaded wheel adjusters, admittedly having some minor wear. UCN was a much better fit than BSW which was a very sloppy fit, so much so that if the boss had been BSW then there is a very good chance that the UNC tap would not have fit.
As with all things a mix of the two might work for a time. 2 points - having a different contact angle there is always the potential for greater resistance, always the potential for much more rapid wear.
Apparently BSW was always retained in industry for clamping devices as greater force can be applied through it than through UNC.
ACME threads such as on the furrow width adjuster are normally used for lead screws due them being subject to less friction.
As with all things a mix of the two might work for a time. 2 points - having a different contact angle there is always the potential for greater resistance, always the potential for much more rapid wear.
Apparently BSW was always retained in industry for clamping devices as greater force can be applied through it than through UNC.
ACME threads such as on the furrow width adjuster are normally used for lead screws due them being subject to less friction.
Now, that could explain why KV use Whitworth threads! The adjusting screws and the two tapped holes in the beam tubes are Whitworth. I always thought that UNC and Whit were compatible up to half inch, I did look in my machinerys handbook, a wieghty tome, but am now more confused than ever!