Gearbox Chart including HP, Ratio, Input and Output Shaft.

Gearbox Model Assembly Number HP Rating Ratio Input Output
RC-30 250001 30-50 HP 1:1.47 1 3/8" Round Input Shaft w/ Shear Pin 1-1/2" - 12 Spline Tapered Output Shaft
RC-30 250045 30-50 HP 1:1.93 1 3/8" Round Input Shaft w/ Shear Pin 1-1/2" - 12 Spline Tapered Output Shaft
RC-30 250287 30-50 HP 1:1.93 1 3/8" - 6 Spline Input Shaft 1-1/4" Keyed Output Shaft
RC-30 250190 30-50 HP 1:1.93 1 3/8" - 6 Spline Input Shaft 1-1/2" - 12 Spline Tapered Output Shaft
RC-30 250179 30-50 HP 1:1.47 1 3/8" - 6 Spline Input Shaft 1-1/2" - 12 Spline Tapered Output Shaft
RC-51 250888 50-75 HP 1:1.47 1 3/8" - 21 Spline Input Shaft 15 Spline Tapered Output Shaft
RC-51 250618 50-75 HP 1:1.93 1 3/8" Round Input Shaft w/ Shear Pin 15 Spline Tapered Output Shaft
RC-51 251026 50-75 HP 1:1.93 1 3/8" Round Input Shaft w/ Shear Pin 15 Spline Tapered Output Shaft
PHD-26 250222 35-45 HP 1:2.92 1 1/4" Round Input Shaft 2" Round Output Shaft
RC-61 250372 50-75 HP 1:1.46 1 3/8" 6A Spline Input Shaft 15 Spline Output Shaft
RC-61 250373 50-75 HP 1:1.46 1 3/8" Smooth w/ 1/2" Bolt Input Shaft 15 Spline Output Shaft
RC-61 250402 50-75 HP 1:1.93 1 3/8" 6A Spline Input Shaft 15 Spline Output Shaft
RC-61T 250405 100 HP 1 : 1 (3) 1 3/8" - 6 Spline Shafts  
RC-71 251257 70-100 HP 1 : 1 1 3/8" - 6A Spline Input Shaft 15 Spline Tapered Output Shaft
RC-71 250492 70-100 HP 1:1.46 1 3/8" - 6A Spline Input Shaft 15 Spline Output Shaft
RC-81 250434 70-100 HP 1:1.46 1 3/8" - 6A Spline Input Shaft 15 Spline Output Shaft
RC-100 251083 70-100 HP 1:1.46 1 3/8" - 6A Spline Input Shaft 15 Spline Output Shaft