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Suzuki GT750 Rear Wheel Nut

 

Making the front and rear wheel nuts out of stainless steel, would have been a bit quicker to get something close to 27mm hexagonal bar, but haven't got any so made from a 38mm off cut.
Click the images below for full sized pictures most are sized around 1200 x 900

 

Suzuki GT750 rear wheel castle nutMachining the 38 mm bar down to 32mm. The minimum size to get a 27mm A/F hexagon is about 31.2mm but allowed a bit extra.

Suzuki GT750 rear wheel castle nutMachined a a step of 25mm dia and 6mm long, this will be where the slots for the split pin or 'R' clip will be.

Suzuki GT750 rear wheel castle nutCentre drill ready to drill the tapping size for M18 x 1.5 which is 16.5mm

Suzuki GT750 rear wheel castle nutTapping M18 x 1.5 pitch, using the tail stock centre to align the tap as I don't have a tapping attachment.

Suzuki GT750 rear wheel castle nutTaken out the lathe chuck and finished tapping by hand and also have machined down the surplus at the to hold in index chuck.

Suzuki GT750 rear wheel castle nutSurplus on bottom end is about 25 mm diameter.

Suzuki GT750 rear wheel castle nutUsing a 2mm slitting saw to machine the slots in the nut, the finished size of the slot is about 3.5mm

Suzuki GT750 rear wheel nutHad to machine the slots in about 5 cuts as the milling head is not too rigid and the slitting saw a only a buget one.

Suzuki GT750 rear wheel nutFinished machining the slots to 3.8mm wide.

Suzuki GT750 rear wheel nutMachining the flats to 27mm using a solid carbide cutter at about 600 rpm.

Suzuki GT750 rear wheel nutMachining a chamfer on the flats.

Suzuki GT750 rear wheel nutMachining the surplus off the end and now just need a polish.

Suzuki GT750 rear wheel nutAfter a bit of polishing.

Suzuki GT750 rear wheel nut

Suzuki GT750 rear wheel nut

 




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Last updated .. 12 May, 2017