The applications listed call for high accuracy to the tune of microns, conventional grinding wheels are unable to give such accuracy due to their uneven wear while grinding. We have developed a special bond system which gives the wheel, the most important property of shape retention. For grinding the tracks of ball bearing races the wheels are sulphur treated to provide cool cutting even at very high speeds of 80 mps. Mixed Aluminum Oxide wheels are manufactured to give properties lying in between the two extremes of higher material removal and longer life.