Specifications
| Blade Width | |
|---|---|
| Thickness | |
| Blade Length | |
| Center Hole Size | |
| OffSet | |
| Air Lift | |
| Color | |
| Volume | |
| Product UOM | |
| Weight (with Packaging) | |
| Product Height | |
| Product Length | |
| Product Width |
Features
- Center hole: 1/2"
- Requires 3 blades for a 61" cut
- Requires 2 blades for a 41" cut
- Enhanced hardening to keep the blade sharper and more durable
- Made to exact OEM specifications
- High-lift: The aggressive blade angle increases air flow to push debris up-and-out for superior bagging or side discharge
- Replacement for a major brand: Grasshopper
Product Details
21" Lawn Mower Blade (91-534) by Oregon Tool®. You can count on the Oregon™ 91-534 replacement lawn mower blade to be the best in the industry. Oregon Tool 26 quality standards ensure that you're buying a sharp, high-performance blade that mounts properly. It delivers a clean cut for quality results.
Blade Width - Measure near the center of the blade.
Thickness - Measure near the center of the blade.
Blade Length - Measured diagonally from the corners of the blade
Center Hole Size - Many blades will have a round hole in the center of the blade and you will need to know its diameter. Blade Length 5 or 7 Point Star Center holes may be 5 or 7 point star shaped. 5 point star on blade7 point star on blade Square or Rectangular The MTD built blades on many walk behind lawn mowers have a 'bow-tie' hole. In this case the Oregon replacement blade will have a rectangular center hole which will fit on the bow-tie pattern on the blade adapter. Square or Rectangular hole on blade MTD Blades The MTD™ built blades (Bolens, Cub Cadet, Troy-bilt, White, Yard Machine, and Yardman) may have a 6 point star. Oregon replacement blades will have a 'Y' shaped center hole which will fit exactly on the 6 point star on the blade spindle. 6 point star for MTD blades The two sizes of the 6 point star. If your blade spindle has a bolt and lock washer that holds the blade to the machine you would use the 11/16" star or 'Y' blade. blade spindle with bolt and lock washer. If your blade is secured with a large flange nut then you would use the 5/8" star or 'Y' blade. blade spindle with large flange nut
OffSet - (Sometimes referred to as offset): If you set the blade on a table this is the distance the center of the blade is above the table top (if any) when the cutting edges are flat on the table
Air Lift - Air lift is the distance the lift panel rises above the cutting edge.
Fit Guide
Bush Hog: ATH, ATH600, ATH720, FTH, FTH600, FTH720
Replacement Guide
Bush Hog: 88668
Grasshopper: 320242, 320243, 320244, 320245, 320245B, 320246, 320247, 320322, 70134
Rotary: 10102
Stens: 320-014
Sunbelt: B1GH1905
Woods: 70134, 70134KT, 70142KT, 72517KT