An adaptor looks likley to convert a mainstream bearing to our gearboxes. Looking at whats posted up so far, they will be too tall, so we need a short one where an adaptor brings it to the required length but with enough travel to activate the clutch plate.
I have another box here at work and the TO bearing sits at rest 40mm off the casing and travels 20mm before starting to fall off the end of the sleeve.
So that gives us maximum travel at least with the whole assembly 40mm max height with the adaptor. Although that does not mean it takes 20mm to activate the clutch.
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