Very cool concept and indeed a very trick part, making something like this is no joke so big props on producing it.
However I am a bit confused about how if it were to still slip the splines would dig deeper? Once the hub is bolt pressed into position and the inner crank recess ID is "etched" or "keyed" (with the plus sized splines); the VTT hub is then fixed into a position where it can never further enter the crank recess in said slip event as it is bottomed out already correct? This is unlike a spline extractor tool which is free floating hardware which will further penetrate a recess to further engage the splines, thus allowing it to keep digging deeper to retain a positive lock under stress.
It seems to me that this could be a very sweet solution assuming timing relationships would be easy to sustain during initial assembly, never budges due to the etched keyways, and the etched keyways retain good shape for ease of disassembly and reassembly (if/when needed); but do not understand how the part can dig deeper when challenged with a hub that is in a fixed relationship position (axially) with the crank.
EDIT: Just saw this, good to know...
However I am a bit confused about how if it were to still slip the splines would dig deeper? Once the hub is bolt pressed into position and the inner crank recess ID is "etched" or "keyed" (with the plus sized splines); the VTT hub is then fixed into a position where it can never further enter the crank recess in said slip event as it is bottomed out already correct? This is unlike a spline extractor tool which is free floating hardware which will further penetrate a recess to further engage the splines, thus allowing it to keep digging deeper to retain a positive lock under stress.
It seems to me that this could be a very sweet solution assuming timing relationships would be easy to sustain during initial assembly, never budges due to the etched keyways, and the etched keyways retain good shape for ease of disassembly and reassembly (if/when needed); but do not understand how the part can dig deeper when challenged with a hub that is in a fixed relationship position (axially) with the crank.
EDIT: Just saw this, good to know...
It'll break things before it slips, you're talking HUGE torque well beyond anything we're seeing on this platform. Bolt is stock and is intended to stretch by design. Add CBC for a complete solution that addresses both primary and secondary causes of slipped hubs.
Removal q answered above.
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