Where can I get new aluminium sheaves from?

[contessaman]

Got the mast down for replacement … everything.

the sheaves in the masthead are original seldom aluminium ones .. 90mm diameter , 16mm wide and a 15 my hole in the middle. Looks like the new replacements are only Available in a composite material.
I’m sticking with wire halyards so I need metal sheaves … any ideas where I can source ones of comparable size?
the old ones are chipped and damaged . thanks

 

[FWB]

A most unlikely source
Tufnol wire rope sheave
scroll down.
Cast iron wire rope sheave
Classic Marine have them
Aluminum bronze sheaves.

 

[john_morris_uk]

Find a friend with a lathe. A few inches of Dural stock won’t cost you much. My experience of amateurs with lathes is they often jump at an excuse to turn something up.

 

[DinghyMan]

Selden Single 90 x 16mm Aluminium AL-90 Sheave Box Mk2

 

[PeterWright]

For Selden sheaves I would try your nearest Selden dealer. If you can read the mast serial no. (engraved at the foot) the dealer should be able to look up precisely which parts your mast was built from.

Peter.

Alternatively, bin the wire halyards and go for Dyneema or one of the similar low stretch UHMPE lines.

 

[Neeves]

For Selden sheaves I would try your nearest Selden dealer. If you can read the mast serial no. (engraved at the foot) the dealer should be able to look up precisely which parts your mast was built from.

Peter.

Alternatively, bin the wire halyards and go for Dyneema or one of the similar low stretch UHMPE lines.

Why on earth are you sticking with wire halyards?

Jonathan

 

[contessaman]

Why on earth are you sticking with wire halyards?

Jonathan

many reasons. I sail single handed and I love the captive wire winches. Change from wire to rope means changing the winches to big self Tailers . this leaves rope everywhere when hoisting the sail. But more than any of that, the captive winches have barely any mechanical advantage. I can feel the resistance Of my main going up and if it jams , I feel it right away and lower it a bit. Twice on other boats I’ve hoisted a main with a powerful self tailer and winched against a snag and then had trouble getting it down. Trouble I don’t fancy on my own. Each to their own but what I have works well for me and I’m sticking to it thanks.

 

[contessaman]

A most unlikely source
Tufnol wire rope sheave
scroll down.
Cast iron wire rope sheave
Classic Marine have them
Aluminum bronze sheaves.

the aluminium ones look right but they’re too small sadly. Maybe an engineer with a lathe is the only way ..

 

[contessaman]

Selden Single 90 x 16mm Aluminium AL-90 Sheave Box Mk2

thanks but thats an alloy box with composite sheave

 

[FWB]

the aluminium ones look right but they’re too small sadly. Maybe an engineer with a lathe is the only way ..

Give them a ring, they may be able to get what you need made for you.

 

[contessaman]

Will do thanks FWB