I picked up a Pegasus Focuscube v2 today to install on my William Optics GTF81. When I removed the coarse focus knob I discovered there is a bearing that the shaft of the knob goes through. When assembled the knob and the bearing support the focus shaft in the housing. The coupler that comes with the Pegasus focuser does not fit through the bearing. The coupler would need to be attached on the outside of the bearing. At which point the bearing is ineffective and the shaft looses that support. If I go ahead and install it do you think things will be okay? Will the rigid mount of the focuser on the end of the shaft give the shaft ample support? I have attached a couple of pictures showing the bearing and coupler.
Any advice is greatly appreciated