12-25 1255/1-03250

Specifications
Part Number 12-25 1255/1-03250
Gear Internal toothed
Geometry
Weight(G) 430
Outside diameter outer ring(Da) 53.346
Inside diameter inner ring(di) 43.701
inside diameter outer ring(Di) 49.488
Outside diameter inner ring (da) 49.331
Outside bole-hole circle diameter (La)
intside bole-hole circle diameter (Li)
Mounting Holes
Pitch circle diameter Outer Ring (La) 51.772
Number Holes in Outer Ring (na) 42
Pitch circle diameter Inner Ring (Li) 47.008
Number Holes in Inner Ring (ni) 42
Gearing and Tooth Forces
Pitch Circle Diameter (do) 44.488
Diametral Pitch (Pd)
Number of Teeth (Z2) 113
Permissible tooth force (fz norm)(lbs) 10566
Maximum perissible tooth force (fz max)(lbs) 19334
Load Rating
Static Co rad(lbs) 278763
Static Co Max(lbs) 752211
Dynamic C rad(lbs) 81830
Dynamic C Max(lbs) 95319
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