If you remember from your elementary school math class, the radius of a circle is half its width. When it comes to skate sharpening, radius refers to the shape the grinding wheel takes out of skate blade that is brushed against it. Think of a circle with a small radius and how that can cut into the end of a rectangle. When sharpening skates you will want to determine what radius size you need.
This article discusses the effects of the Hollow and mentions:. The larger the radius of the hollow, the less the edge will bite into the ice. Skate Sharpening: Radius of Hollow — Sparxhockey. Skate Sharpening Guide — bshockey. Beginners Guide to Skate Sharpening — newtohockey. Precious Lite All Rights Reserved. Please wait Call us at The quality of the ice is yet another factor to consider!
Or not. Score big! Get in touch All rights reserved. Some go into great detail to explain everything that could possibly be relevant to sharpening your skates, some are more general. This shape is created by passing the blade along a grinding wheel often called a finishing wheel. Your skate is clamped into a jig most commonly one that holds the blade horizontally which is aligned with the finishing wheel.
The blade is then gently passed along the finishing wheel about 10 times, until the edges are sharp and the bottom is fully hollowed out. Prior to the finishing wheel, it is sometimes necessary to use an additional wheel, called a cross-grinder, to prep the blade for finishing.
Unlike the finishing wheel, the cross-grinder runs perpendicular to the skate blade, is designed to dull and flatten the blade rather than sharpen it, and it has much more bite than the finishing wheel.
There are a few aspects to skate sharpening that can be customized, the most common of which is the hollow. As mentioned earlier, sharpening your skates involves passing them over a spinning stone with a rounded outer surface. This surface can be modified to have a very curved surface resembling a segment of a small circle, or it can be flatter, resembling part of a larger one. Each amount of hollow corresponds to a wheel that has been profiled so that its cross-sectional profile would fit onto a circle with a certain radius.
A larger radius will mean a flatter grinding wheel, and therefore a skate with less hollow cut away from its centre. In the pictures here, you can see what these hollows look like when viewed up close. We do this because each hollow will affect how the skate feels, and how it interacts with the ice.
Deeper hollows will put more pressure on the edges of the blade and dig into the ice more. Shallow hollows will do the opposite. They distribute pressure more evenly throughout the blade, causing them to sit more on top of the ice.
Other ways to customize your skate blades exist as well eg.
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