[TR] TR transmission bearings

[Angelo Graham]

Hello list:
Just in the midst of a transmission rebuild on the TR2 and must say 
am surprised on the condition of the box. Not too bad for over 40K 
miles. Wondering about the source of the 2 large main ball bearings 
on the main shaft. Are they available from bearing supply houses or 
are they proprietary "'Standard-Triumph" items available only from 
the big three?
Thanks for any help with this.

Angelo Graham
Waterloo, Ont.