There are a variety of styles and sizes of lawn mower blades. Certain blades are designed specifically for particular lawn mowers. They come with a stamped part number that is referenced in the instruction manual.
For instance, a lift blade creates a powerful suction that effectively throws clippings upwards so they can be bagged. It also provides the best airflow to avoid the clogging of areas with thick grass.
Size
The overall length of the mower blade as well as the hole pattern must be identified to pick the correct replacement lawnmower blades. Also, the shear pin locating holes and their distance to the boss of the blade should be identified. These measurements narrow down the results of a search because they are in line with the shape and design of a particular mower blade, preventing damage to mower components and creating vibrations.
Standard blades, often known as 2-in-1 or lift blades, are often used on regular lawnmowers, as well as side discharge lawnmowers that are not bagging or mulching. Their back edge has an upturn of a small amount that creates continuous cutting and suction action.
High lift blades have sharp upturns on the back of the blade. They’re designed to be used for side discharge mowing. This type of blade requires greater power from the engine to perform well. It may cost more in fuel costs but it’s ideal for grasses with thicker blades that are difficult to cut using normal blades.
Material
The lawn mower’s blades are typically made of the most durable form of steel. Iron or other metals can be used. Steel is the most sought-after option for mower blades because it offers a great combination of strength and toughness. It is heated to make the steel harder. The process of tempering increases the toughness and durability and also the resistance to corrosion.
High-carbon steel is the best option for mowing because it has more tensile strength than steel with low carbon and is more resistant to damage. It can withstand stumps, trees and other things that could hit the blade.
The best method to maintain the glorious mower blades sharpener‘s blade is to regularly use it and keep it properly sharpened. It is also important to balance the blade. This is accomplished by placing a nail in the board, and using a file to adjust the nail until it is in the middle of the blade.
Sharpness
Sharpness of blades is influenced by many variables, including the dimensions of the lawn as well as the frequency with which it is used. Sharpening is needed more frequently on large lawns that have plenty of pebbles tree roots, rocks and weeds. A dull blade will wear out more quickly if you are using the blade regularly.
To get a clean and attractive cut for a neat and pleasing cut, a sharp cutting edge is crucial. A blade sharpening bit is a great tool to accomplish this. It functions like the bench grinder, but is much smaller and cheaper.
The blade needs to be balanced on a regular basis, especially after having been sharpened. Sharpening can cause the blade to be unbalanced because it takes more metal off one side than from the other. Hang the blade through the hole in the bolt 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, make use of a tool that functions similar to a drill bit, however with a specially-designed stone to hug the edge of the blade, leaving the least amount of room for errors. This tool is quicker and more accurate than hand-filing. When both sides are smooth, check the balance of the blade by hanging it from a nail that is inserted into the bolt hole. If the blade isn’t properly balanced, you’ll have to file it a little more.
Before you remove a blade, ensure that the engine is turned off. Pull the spark plug wire to stop the engine from getting started while you work on the blade. Block the blade with a block to keep it in place while you loosen the bolt that holds it with a ratchet or wrench. Remember which blade side is marked when reinstalling it to ensure that you have it correctly mounted. Spray WD-40, or similar lubricant, on the bolt for mounting before tightening.