Help Installing crank/bottom bracket
03-27-10 | 04:27 PM
#1
Help Installing crank/bottom bracket
Yikes...
So I just got a brand new frame w/BB30. I sent builder bearing assembly and he pressed bearings in prior to delivery.
...frame looks great/bearings seem fine, but I can't for the life of me get the crank assembly through bearings. I tapped medium hard w/mallet, but I'm a bit chicken to really crank it.
How easy should it be to slide the deal together? It's a SRAM Red crankset with the integrated slide through portion on the drive side.
I'm sooo excited and a bit deflated to not be able to get the crank together.
So I just got a brand new frame w/BB30. I sent builder bearing assembly and he pressed bearings in prior to delivery.
...frame looks great/bearings seem fine, but I can't for the life of me get the crank assembly through bearings. I tapped medium hard w/mallet, but I'm a bit chicken to really crank it.
How easy should it be to slide the deal together? It's a SRAM Red crankset with the integrated slide through portion on the drive side.
I'm sooo excited and a bit deflated to not be able to get the crank together.
03-27-10 | 05:28 PM
#2
Senior Member
Joined: May 2004
Posts: 12,103
Likes: 96
From: Wilmington, DE
Bikes: 2016 Hong Fu FM-079-F, 1984 Trek 660, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1, 2016 Islabikes Beinn 20 (son's)
Some cranks are harder than others to insert through the bearings. We discussed this somewhat recently with comments about how Shimano cranks have become harder to install. My most recently purchased Stronglight crank took a lot more force than expected to seat in the bearings. Make sure everything is lined up (that you aren't hitting the inner race of the far side bearing) and use a little more force would be my advice.
03-28-10 | 07:13 AM
#4
Senior Member
Joined: May 2004
Posts: 12,103
Likes: 96
From: Wilmington, DE
Bikes: 2016 Hong Fu FM-079-F, 1984 Trek 660, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1, 2016 Islabikes Beinn 20 (son's)
Did you lube the axle?
03-28-10 | 08:17 AM
#5
Bianchi Goddess
Joined: Apr 2009
Posts: 28,890
Likes: 4,133
From: Shady Pines Retirement Fort Wayne, In
Bikes: Too many to list here check my signature.
why did't you send the spindle with the bearing to the builder?
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
03-28-10 | 08:13 PM
#7
'cuz the bearing set was the size of a silver dollar and cost me 2.25 to send....the crankset is significantly larger and would have entailed a more involved operation. Also, the bearings require special tool which I don't have...crankset should have been easy with standard tools.
03-28-10 | 09:20 PM
#8
cab horn
Joined: Jun 2004
Posts: 28,353
Likes: 30
From: Toronto
Bikes: 1987 Bianchi Campione
'cuz the bearing set was the size of a silver dollar and cost me 2.25 to send....the crankset is significantly larger and would have entailed a more involved operation. Also, the bearings require special tool which I don't have...crankset should have been easy with standard tools.
https://www.sram.com/_media/techdocs/95-6115-002-000.pdf
