"GEAR TYPE-PINION;STRAIGHT INPUT SHAFT DIA 0.500 IN.;STRAIGHT OUTPUT SHAFT DIA 2.208 IN.;HOUSING MATL ALUM. OR CRES STEEL,MATL OUTPUT SHAFT CRES STEEL,CASE IS PHOSPHATE COATED TYPE M-CLASS 2,OUTPUT PINION HAS 24 INVOLUTE CROWNED TEETH W/DIAMETRAL PITCH OF 12 AND A PITCH DIA OF 2 IN.,A ROOT DIA OF 1.849,INPUT PINION HAS A SQ. KEY SIZE OF 0.125 X 0.125 X 1.000 MIN.,THE DIRECTION OF ROTATION WHEN MANUALLY ROTATED IS REVERSIBLE,THE OUTPUT SHAFT TURNS AT 29.33 RPM W/INPUT SPEED OF 2552 RPM,OPERATING TEMP -28 TO 65 DEG C,LIFE EXPECTANCY 1000 HRS MIN. W/O MAINTENANCE"