Usually, if this is for a journal submission, you should not be concerned with the layout since the journal editors will adjust things during final production to fit the standards of the journal.
However, if you wish to have equal margins, add
\setlength{\textwidth}{\dimexpr\pdfpagewidth-2in}
to your document preamble. This stems from the fact that the default odd/even margins is set to 0pt
, meaning the text block is flush (horizontally) with \hoffset
- default is 1in
from the page boundary. Setting the \textwidth
to 2in
shorter than the page width makes sure there is 1in
on either side of the text block to the page boundary.

\documentclass{svjour3}% http://www.e-publications.org/springer/support/spr-chicago.html
\usepackage{lipsum}% http://ctan.org/pkg/lipsum
\setlength{\textwidth}{\dimexpr\pdfpagewidth-2in}% Equal left/right margins
\begin{document}
\lipsum[1-10]
\end{document}
Note that margin paragraphs will be placed within the 1in
margin space.