Brian,
Unfortunately this was a completed project I have inherited,Mfgr and previous Engineer both claim to have mis-laid information that was submitted for gearbox selection. So I am starting cold on this with no information. As previous reply suggests maybe bite the bullet and start again.
Hi,
I have had the same layshaft shear 3 times.Gearbox manufacturer say nothing wrong with their design,the gearbox should suffice for torque produced.Anybody similar problems. The gearbox drives a reciprocating compressor.