Re: [CR]cottered crank spindle diameters.

(Example: Framebuilding:Tubing:Falck)

Date: Wed, 31 Oct 2007 21:01:03 -0400
To: Classic Rendezvous <classicrendezvous@bikelist.org>
From: "John Betmanis" <johnb@oxford.net>
Subject: Re: [CR]cottered crank spindle diameters.
In-Reply-To: <472922E3.20009@verizon.net>


At 08:50 PM 31/10/2007 -0400, Harvey Sachs wrote:
>My Sutherland 4th Ed doesn't treat this, but my memory from earlier
>editions is that there are national specification differences, but they
>are just a few thousandths of an inch. Just enough that I've been able
>to get away with a slightly undersized spindle, by using a well-set
>cotter pin. But w/o a lathe, the interference fit is a real bummer.
>Unfortunately, I just don't remember the sequence of sizes,

My 3rd Edition has this for axle diameters:

English Nominal 5/8" (15.88mm) Actual 15.75mm - 15.80mm French Nominal 16mm Actual 15.9mm Italian Nominal 16mm Actual 15.9mm

You could probably lap out English cranks to fit French or Italian spindles.

John Betmanis
Woodstock, Ontario
Canada