18-07-14, 01:33 PM
(17-07-14, 07:44 PM)AyJay link Wrote: You're right about it being a shear force (my mistake, it was late), I understand the calliper is trying to rotate with the disk putting 90 degree forces on the mounting bolts as you say. What I don't understand is where you say there are no braking forces going through it. Er, then what is that 90 degree shear force then? How does that not put force through at least
The shear force isn't acting on the helicoil, it's acting on the bolt only where the caliper body is touching the bolt -ie not on the helicoiled bit.
The caliper doesn't move about and channel strange forces through the bolt and/or helicoil as you seem to imply, it's rigidly mounted.
Really, this is 'O' Level Physics.