The purpose of the paper is to theoretically calculate infeed of grinding wheel for forming a cambered workpiece such as roll in traverse grinding. The infeed of grinding wheel has been analyzed considering various residual stock removals, wheel wear, the profile change of cutting surface of wheel caused by wheel wear. Then it is made clear that cambered workpiece can be ground with NC-grinding machine. The distributions of stock removal rate, grinding force and wheel wear rate on cutting surface of wheel are calculated.