91-20 1091/1-37172

Specifications
Part Number 91-20 1091/1-37172
Gear External toothed
Geometry
Weight(G) 201
Outside diameter outer ring(Da) 46.867
Inside diameter inner ring(di) 38.740
inside diameter outer ring(Di) 43.130
Outside diameter inner ring (da) 43.102
Diameter outer ring (a)
Diameter inner ring (b)
Mounting Holes
Pitch circle diameter Outer Ring (La) 44.63
Number Holes in Outer Ring (na) 20
Pitch circle diameter Inner Ring (Li) 39.88
Number Holes in Inner Ring (ni) 24
Gearing and Tooth Forces
Pitch Circle Diameter (do) 46.333
Diametral Pitch (Pd) 3
Number of Teeth (Z2) 139
Permissible tooth force (fz norm)(lbs) 3700
Maximum perissible tooth force (fz max)(lbs) 7960
Load Rating
Static Co rad(lbs) 70140
Static Co Max(lbs) 164111
Dynamic C rad(lbs) 50357
Dynamic C Max(lbs) 50582
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