Euro Seal 68mm Bottom Bracket Question
#1
Newbie
Thread Starter
Euro Seal 68mm Bottom Bracket Question
(Asked this in the mechanic forum and was told it would be a good idea to post it here since it's a BMX bottom bracket)
I'm doing some work on a Framed 29er which uses an internal cupped euro-seal BB. I'm curious why the shells cannot be tightened against the internal spacer without binding? The spacer is an exact fit to the inner race so I was sort of surprised when it stopped rotating. I'll include a picture of the BB.
I'm doing some work on a Framed 29er which uses an internal cupped euro-seal BB. I'm curious why the shells cannot be tightened against the internal spacer without binding? The spacer is an exact fit to the inner race so I was sort of surprised when it stopped rotating. I'll include a picture of the BB.
#2
Hack
Join Date: Sep 2015
Location: Ottawa, Ontario, Canada
Posts: 1,299
Bikes: TrueNorth CX bike, 88 Bianchi Strada (currently Sturmey'd), Yess World Cup race BMX, Pure Cruiser race BMX, RSD Mayor v3 Fatbike
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You're putting side load on the bearing as you tighten. Too much load and the bearing binds. Same as tightening a headset too much.
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