DrInnovation
100 W
How much friction should there be in a hub? I know direct drive has more inherent friction, but I think my hub now has more than normal.
Contact: I bough a used Crystallite 4012/4009 hub and build a bike around it. My original build thread has pic.. https://endless-sphere.com/forums/viewtopic.php?f=3&t=80874 The hub was woven in a 24" hub and given my climb on 10% hills I decided to keep it on that. I hack an extension to the bikes caliper brakes, which has worked for about 3 months but the fatigue of daily hard braking on it is taking its toll on the hack so I decided to put on the disc brakes.
When I bought it, the seller included a cover that support a 160mm rotor, so today I put that on. It did not have bearings so I took those from the old cover. When I reassembled I replaced the various plastic washers (one slides into the bearings and the second has a notch for the cable to come out the side. As far as I can tell it was assembled the same as it was before I took it apart.
When I remounted it it spun reasonably well, until I tightened the bolts at which point it was hard to spin and the washers were squeaking a bit so I added some grease, and it will make about 1 or 1.5 rotations from a hard spin. I had never really noted how easily or hard it was to spin before, so I don't know what is normal. But to me it seems something is a miss. if it was a normal hub I would presume I over tightened the cones.. but I don't think this even has cones.. correct?
Is it normal or did I somehow mess something up?
Any ideas what I might have done wrong or how to debug it?
Contact: I bough a used Crystallite 4012/4009 hub and build a bike around it. My original build thread has pic.. https://endless-sphere.com/forums/viewtopic.php?f=3&t=80874 The hub was woven in a 24" hub and given my climb on 10% hills I decided to keep it on that. I hack an extension to the bikes caliper brakes, which has worked for about 3 months but the fatigue of daily hard braking on it is taking its toll on the hack so I decided to put on the disc brakes.
When I bought it, the seller included a cover that support a 160mm rotor, so today I put that on. It did not have bearings so I took those from the old cover. When I reassembled I replaced the various plastic washers (one slides into the bearings and the second has a notch for the cable to come out the side. As far as I can tell it was assembled the same as it was before I took it apart.
When I remounted it it spun reasonably well, until I tightened the bolts at which point it was hard to spin and the washers were squeaking a bit so I added some grease, and it will make about 1 or 1.5 rotations from a hard spin. I had never really noted how easily or hard it was to spin before, so I don't know what is normal. But to me it seems something is a miss. if it was a normal hub I would presume I over tightened the cones.. but I don't think this even has cones.. correct?
Is it normal or did I somehow mess something up?
Any ideas what I might have done wrong or how to debug it?