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There are numerous styles and sizes of lawn mower blades. Certain models are made specifically for certain mowers and have a part number stamped into them, which can be referred to in the list of components in the manual of the mower.

For example, a high lift blade produces a strong suction that effectively wills clippings upwards, so they can be sorted. The blade is also able to provide the best air flow in grass to avoid clogging.

Size

 

 

To select the correct replacement lawnmowers, you need to know the length of the blade and hole pattern of the blade. Additionally the shear pins used to locate holes as well as their distance from the boss of the blade must be known. These measurements aid in narrowing search results as they match the design of a specific mower blade and fit to avoid damaging the components of the mower and producing vibrations within the mower.

Standard blades, often called 2-in-1 or lift blades are commonly used on regular lawnmowers as well as side discharge mowers which aren't mulching or bagging. Their back edge features an upward slope that produces an ongoing cutting and suction action.

High lift blades feature an incredibly steep upturn on the back of the blade. They are designed to be used for side discharge mowing. This blade type requires more power from the engine to function well. It can be a bit more expensive in terms of fuel consumption, but is ideal for grasses with thicker tufts that are difficult to cut with regular blades.

Material

 

 

The lawn mower's blades are generally made from an extremely durable steel. Metals like iron or other are a possibility. Steel is a popular material for mower blades since it provides robustness and durability. It is typically treated with heat to harden it. This is known as tempering, and it increases its toughness, durability as well as resistance to corrosion.

High-carbon steel is an ideal option for mowing because it is stronger than steel with low carbon which makes it more resistant to damage. It is strong enough to stand up to trees, rocks and other items that might strike the blade.

For a lawnmowers blade to last, it is best to keep it sharp and to use it often. The blade needs to be balanced. This is accomplished by inserting a nail into the board, and using an adjustment tool to move the nail until it is in the middle of the blade.

Sharpness

 

 

Sharpness of blades is influenced by a variety of variables, including the dimension of the lawn and the frequency of use. Sharpening is required more often for large lawns with plenty of pebbles rocks, tree roots and weeds. The continuous use of a top-tier mower blades sharpener that is dull could also cause the blade to wear down more quickly.

For a smooth and beautiful cut for a neat and pleasing cut, a sharp cutting edge is essential. A sharpening tool for blades will achieve this. It functions like an industrial bench grinding machine however, it is smaller and much less costly.

The blade should be balanced frequently, especially after it has been sharpened. Sharpening may cause the blade to be unbalanced because it removes more metal from one side than from the other. Place the blade through the bolt hole and onto nails to test its balance. If one of the ends tilts more than the other, the blade needs to be filed more in order to make it level.

Maintenance

 

 

When sharpening a mower blade, you should use a tool that works similar to drill bits, but using a stone that is designed to fit around the edge of the blade, leaving the least amount of room for errors. This tool is more efficient and more accurate than hand-filing. When both sides are smooth you can examine the balance of the blade putting it on a nail through the bolt hole. If one end drops lower than the other it will need to be filed a bit more in order to ensure it is balanced.

To avoid an engine starting up when you work on a blade, switch off the engine and take out the spark plug cable. Block the blade with an object to hold it in place as you loosen the bolt that holds it with a ratchet or wrench. Be sure to note which blade side is marked when reinstalling it to ensure you have it properly mounted. Spray WD-40, or a similar lubricant, on the bolt that is used to mount it before tightening.