Size Categories
There are five different hitch sizes, called categories. The higher category hitches have sturdier lift arms and larger connector pins. There is some flexibility in the tractor hp at which one category hitch ends and the next begins.
| Category | Tractor HP | Top Link Pin Diameter | Lift Arm Pin Diameter |
|---|---|---|---|
| 0 | Up to 20 | 5/8 in | 5/8 in |
| 1 | 20 to 45 | 3/4 in | 7/8 in |
| 2 | 40 to 100 | 1 in | 1⅛ in |
| 3 | 80 to 225 | 1¼ in | 1 7/16 in |
| 4 | 180 to 400 and up | 1 3/4 in | 2 in |
Read more about this topic: Three-point Hitch
Famous quotes containing the words size and/or categories:
“Great causes are never tried on their merits; but the cause is reduced to particulars to suit the size of the partizans, and the contention is ever hottest on minor matters.”
—Ralph Waldo Emerson (1803–1882)
“The analogy between the mind and a computer fails for many reasons. The brain is constructed by principles that assure diversity and degeneracy. Unlike a computer, it has no replicative memory. It is historical and value driven. It forms categories by internal criteria and by constraints acting at many scales, not by means of a syntactically constructed program. The world with which the brain interacts is not unequivocally made up of classical categories.”
—Gerald M. Edelman (b. 1928)