Norton 19T Gearbox Sprocket - 1930's-mid 1950's 'Deep Recess' Type (all SOHC/OHV/SV) - Each

Product no.: 0341 A2\368

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£52.00
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Norton 19 tooth gearbox sprocket - of the 'deep recess' type fitted to all models using Norton upright gearbox's from the early 1930's - and then through to some later Laydown Norton Gearboxs up to approximately the mid 1950's.  These are good quality UK manufactured sprockets. 

Price is each.

I am not sure exactly which year this 'deep recess' type gearbox sprocket was replaced with the shallower type 19T sprocket (which we also sell - see Item 1205) - but if not sure, when replacing your old sprocket - place the teeth of the sprocket on a flat surface - and measure the depth to the end of the spline sleeve - for the deep recess type sprocket, it should measure approximately 1"/25mm depth, as these do.  

The deeper spline spigot on this type of gearbox sprocket will fit into the gap between the gearbox shell and the recessed main gearbox bearing - so the sprocket does not foul the gearbox housing.  Many years ago it was not uncommon to find the earlier gearbox type, fitted with a later (shallow recess type sprocket) - normally because this 'deep recess' type were not always available .. . if that is the case with your old sprocket - you should find that a spacer ring has also been fitted between the back of the sprocket and gearbox main bearing - if so, it means you should be able to dispense with the spacer and fit this sprocket correctly again (but you may wish to measure offsets to make sure).

These sprockets are manufactured in the UK and of very good quality.  One of the sprockets is shown in the accompanyning photographs pushed onto an original Norton sleeve gear - and I can confirm the spline fit is very good. 

 

 

 

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