1
sprocket before repair,splines totally missing
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2
fixture to hold sprocket by the only reasonably true surface on the sprocket
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3
removing casting taper to make
hub straight and concentric
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4
cutting chamfer for welding on hub extension
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5
hub extension
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6
hub extension in place,ready to clamp and weld
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7
extension welded
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8
dressing weld on extension
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9
extension dressed ready for hub that is needed to hold while boring ID and to use for mounting puller
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10
hub prepared
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11
hub pressed in place
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12
dressing top of hub
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13
dressing OD of hub , preparing to hold in lathe chuck to bore tapered hole
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14
inside built up ready to bore taper
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15
boring tapered ID
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16
sprocket in shaper , to cut inside keyway
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17
cutting keyway in tapered hole
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18
finished parts
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19
finished parts ,another view
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20
Edward's GT-30 with axle and sprocket installed
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