If you install it correctly, you should be done, but checking it occasionally with a torque wrench is still a good idea. Grease - I grease the spindle but do not grease the threads - grease on the threads can cause you to excessively torque the joint. The goal of a torqued joint is to elastically strain the bolt to 80-90% of its yield strength. Getting from torque to bolt strain requires a friction factor assumption. With too little friction, you can stretch the bolt too much, damage the threads, deform the taper in the crank, etc.
On Tuesday, May 27, 2014 1:49:29 PM UTC-5, Brewster Fong wrote: > > > On Tuesday, May 27, 2014 10:59:23 AM UTC-7, Patrick Moore wrote: >> >> Grease. Didn't Jan just discuss this in typically thorough fashion >> somewhere? Per him, the grease is needed for a good fit. >> >> Also I've read --Jobst? -- that you torque it properly, with grease, and >> leave it alone forever (unless you need to remove it, of course) since >> repeated tightening will enlarge the hole and ruin it. >> > > There's a FAQ: > > http://sheldonbrown.com/brandt/installing-cranks.html > > Good Luck! > >> >> Patrick Moore >> iPhone >> >> On May 27, 2014, at 10:33 AM, "'hangtownmatt' via RBW Owners Bunch" < >> rbw-owne...@googlegroups.com> wrote: >> >> My Sugino non-drive side crank arm came loose also. I've had to >> re-torque it several times since (approx. 5,000 miles) and will need to >> replace it when I run out of spindle real estate (i.e. soon). Here's a >> question for the group: When you install a crank arm do you put a little >> grease on the bottom bracket spindle or do you install it dry? I used >> grease. I was taught a long time ago to use a small amount of grease to >> prevent creaking. I've never had a problem before, but am wondering if >> this may be the reason it came loose. >> >> Matt >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to rbw-owners-bun...@googlegroups.com. >> To post to this group, send email to rbw-owne...@googlegroups.com. >> Visit this group at http://groups.google.com/group/rbw-owners-bunch. >> For more options, visit https://groups.google.com/d/optout. >> >> -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
