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Test the fit in your gypsy
Offcuts from our stock
Jimmy Green recognise the need to check that your intended chain purchase will fit your gypsy.
If you have a windlass gypsy, and an old rusty chain that fits, find the best looking section, measure 10 links and compare your findings with the table below
If you are starting from scratch with no chain that fits, then establishing your gypsy calibration is more difficult, but we can still help.
We can research the windlass and gypsy for you to narrow down the options and send you 10 links to lay in the pockets of the gypsy.
You are looking for
Pitch refers to the inside length of each link
The 10 links should be measured from outside edge to outside and the results can differ slightly according to the manufacturer.
N.B. Both DIN766 and ISO allow a small tolerance in the link dimensions.
Gypsys are generally manufactured to cope with a little variation.
It isn't possible to give that variation a specific figure, but 2% should normally be fine.
The classic problem that crops up the most is the 'wrong' 10mm chain for the gypsy.
The difference between DIN77 and ISO is approximately 20mm and this will definitely make the chain 'jump' under load.
Some modern gypsys are cleverly designed to cope with greater variation in pitch.