Mower Blades
Lawn mower blade acts as a fan providing a lift force. Rotary mowers typically have an opening in the side of the housing where the cut grass is expelled. Some have a grass catcher attachment at that point to bag the grass clippings. Rear-catchers is another common design for the same purpose.
Special mulching blades are also available for rotary mowers. The blade is designed to keep the clippings circulating underneath the mower until the clippings are chopped quite small. This avoids the need for bagging the clippings or raking the clippings. Not only does this save labour, as no organics are removed from the lawn, less fertilizer is needed.
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Lawn Mower Blades by Brand
Aladdin
Allis Chalmers
Bad Boy
Big Bee
Billy Goat
Black & Decker
Bolens
Brave
Briggs and Stratton
Brute
Bunton
Bush Hog
Caroni
Classen
Country Clipper
Dewalt
Dixie Chopper
Dixon
EGO Power
Electrolux
Encore
Everride
Exmark
Ferris
Flymo
Ford
Grasshopper
Gravely
Great Dane
Greenworks
Henrys
Huskee
Hustler
Iseki
Jacobsen
John Deere
Kees
King Kutter
Kubota
Landpride
Lawn-Boy
Lesco
Massey Ferguson
Maxim
Maxpower
McCulloch
Milwaukee
Noma
Oregon
Rally
Ranch King
Red Max
Ryan
Sabre
Scag
Scotts
Sears
Simplicity
Snapper
Snapper Pro
Southern States
Stens
Swisher
Toro
Viking
Walker
White Outdoor
Woods
Worldlawn
Wright MFG
Yardman
Yazoo Kees
On rotary mowers, the blade is seldom sharp enough to actually cut the grass blades. The speed of the blade simply tears the grass resulting in brown tips. By contrast the reel lawn mowers and manual lawn mowers usually work by scissor action on the blades and a cleaner cut is achieved.
Source and additional innformation: Lawn Mower