D4 Series Ratings – 1750 Input RPM

Overhung load; output shaft=1500lbs

Ratio Primary Secondary Input HP Output HP Output Torque Output RPM
100 10 10 1.13 .83 3000 17.5
150 10 15 .83 .56 3000 11.7
200 20 10 .64 .42 3000 8.8
250 10 25 .54 .31 2750 7
300 10 30 .45 .24 2600 5.8
400 40 10 .38 .21 3000 4.4
500 20 25 .31 .15 2750 3.5
600 20 30 .26 .12 2600 2.9
750 25 30 .20 .09 2600 2.3
1000 40 25 .20 .08 2750 1.8
1250 50 25 .16 .06 2750 1.4

D4 Series Ratings – 1150 Input RPM

Overhung load; output shaft=1500lbs

Ratio Primary Secondary Input HP Output HP Output Torque Output RPM
100 10 10 .78 .55 3000 11.5
150 10 15 .58 .37 3000 7.7
200 20 10 .45. .28 3000 5.8
250 10 25 37 .20 2750 4.6
300 10 30 .32 .16 2600 3.8
400 40 10 .28 .14 3000 2.9
500 20 25 .22 .10 2750 2.3
600 20 30 .19 .08 2600 1.9
750 25 30 .14 .06 2600 1.5
1000 40 25 .14 .05 2750 1.2
1250 50 25 .11 .04 2750 .92

D4 Series Ratings – 870 Input RPM

Overhung load; output shaft=1500lbs

Ratio Primary Secondary Input HP Output HP Output Torque Output RPM
100 10 10 .60 .41 3000 8.7
150 10 15 .45 .28 3000 .5.8
200 20 10 .35 .21 3000 .4.4
250 10 25 .29 .15 2750 3.5
300 10 30 .25 .12 2600 2.9
400 40 10 .21 .10 3000 2.2
500 20 25 .16 .07 2750 1.7
600 20 30 .15 .06 2600 1.5
750 25 30 .13 .05 2600 1.2
1000 40 25 .12 .04 2750 .87
1250 50 25 .09 .03 2750 .70

D4 Series Ratings – 690 Input RPM

Overhung load; output shaft=1500lbs

Ratio Primary Secondary Input HP Output HP Output Torque Output RPM
100 10 10 .49 .33 3000 6.9
150 10 15 .37 .22 3000 4.6
200 20 10 .29 .17 3000 3.5
250 10 25 .24 .12 2750 2.8
300 10 30 .19 .09 2600 2.3
400 40 10 .17 .08 3000 1.7
500 20 25 .14 .06 2750 1.4
600 20 30 .13 .05 2600 1.2
750 25 30 .11 .04 2600 .92
1000 40 25 .09 .03 2750 .69
1250 50 25 .06 .02 2750 .55

D4 Series Ratings – 300 Input RPM

Overhung load; output shaft=1500lbs

Ratio Primary Secondary Input HP Output HP Output Torque Output RPM
100 10 10 .23 .14 3000 3
150 10 15 .18 .10 3000 2
200 20 10 .13 .07 3000 1.5
250 10 25 .11 .05 2750 1.2
300 10 30 .10 .04 2600 1.0
400 40 10 .10 .04 3000 .75
500 20 25 .08 .03 2750 .60
600 20 30 .06 .02 2600 .50
750 25 30 .06 .02 2600 .40
1000 40 25 .04 .01 2750 .30
1250 50 25 .04 .01 2750 .24

D4 Series Ratings – 100 Input RPM

Overhung load; output shaft=1500lbs

Ratio Primary Secondary Input HP Output HP Output Torque Output RPM
100 10 10 .09 .05 3000 1.0
150 10 15 .06 .03 3000 .7
200 20 10 .04 .02 3000 .50
250 10 25 .05 .02 2750 .40
300 10 30 .03 .01 2600 .33
400 40 10 .03 .01 3000 .25
500 20 25 .03 .01 2750 .20
600 20 30 .02 .007 2600 .17
750 25 30 .02 .005 2600 .13
1000 40 25 .02 .004 2750 .10
1250 50 25 .01 .003 2750 .08