Lawn mower blades are available in a wide range of sizes and styles. Some are designed specifically for certain mowers and have an identification number engraved into them, which can be referred to in the parts list in the mower's manual.



For example, a high lift blade creates a powerful suction that efficiently throws clippings upwards so they can be bagged. It also offers optimum airflow to avoid clogging in conditions with thick grass.


Size


The overall length of the mower blade and the hole pattern should be known to correctly choose the appropriate replacement lawnmowers blades. Additionally the shear pins used to locate holes as well as their distance from the blade boss must be identified. These measurements help narrow the results of your search since they correspond to the specific design of the mower blade and fit to avoid damaging the components of the mower and creating vibrations in the mower.



Standard blades (also known as 2-in-1 blades, also known as lift blades) are typically used on lawnmowers with side discharges and lawnmowers that do not have mulching or bagging. The back of the blades is slightly upward turn, which creates continuous cutting and suction action.



High lift blades are designed to be used for side discharge mowing. They feature a sharp upward turn at the back. This type of blade requires greater power from the engine in order to work well and can be a bit more expensive in fuel costs but it's great for grasses with thicker blades that are difficult to cut using standard blades.


Material


The blade of a lawn mower is typically made from steel, which makes it durable. Iron or other metals can be used. Steel is the most well-known choice for mower blades, as it has a superior combination of strength and durability. Heat is used to make the steel harder. The process of tempering increases the durability and toughness, as well as resistance to corrosion.



High-carbon steel is a better option for mowing, as it has more tensile strength than low carbon steel which makes it more resistant to damage. It is strong enough to stand up to rocks, tree stumps and other objects which can strike the blade.



The best way to keep the mower's blade is to regularly use it and ensure that it is sharpened properly. The blade must also be balanced. This can be accomplished by placing a nail in the board, and using an adjustment tool to move the nail until it is in the center of the blade.


Sharpness


The sharpness of get your lawn mower blade sharpened blades is dependent on many factors like how much you use it and the dimensions of your lawn. Large lawns that are brimming with rocks, tree roots and pebbles will require frequent sharpening. The continuous usage of a dull mower will also make the blade wear down faster.



Sharp cutting edges are required for a neat and aesthetically pleasing cut. A sharpening blade can accomplish this. It works like an industrial bench grinding machine however, it is smaller and much less costly.



It is essential to balance the blade regularly, especially after it has been sharpened. Sharpening process removes metal from one end of the blade more than the other, making the blade unbalanced. The blade is hung through the hole in the bolt on a nail to check its balance. If one side is tilted higher than the other, the blade needs to be filed further to ensure it is balanced.


Maintenance


Use a special tool to sharpen a mower's blade. It works like a drill, however it has the stone specifically made to be able to grip the edge, leaving no room for mistakes. This tool is quicker and more precise than hand filing. Verify the balance of the blade by placing it over an anchor through the hole. If the blade isn't properly balanced, you'll have to file it more.



Before you remove a blade, make sure your engine is shut off. Pull the spark plug wire to prevent the engine from accidentally getting started while you work on the blade. Block the blade with a block to keep it in place as you loosen the bolt holding it using a wrench or ratchet. When reinstalling the blade, remember the side that is marked downward to ensure that it is placed in the correct position. Spray a little WD-40 or another lubricant on the mounting bolt before tightening it.