Grove Gear 8050 Catalog

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Single Reduction
Worm Gear Reducers
Double Reduction
Worm - Worm Gear Reducers
Double Reduction
Helical - Worm Gear Reducers
WASHGUARD
®
Reducers
and GEAR+MOTOR™
Ratio Multipliers
Accessories and
Additional
Capabilities
131
Quick Selections
Note: This chart is meant as a guide for reducer selections at specific motor horsepowers.
Actual service factor may be greater than indicated. For actual service factors and maximum worm reducer ratings, refer to pages 132-136.
z Actual ratio combinations supplied by Factory may vary from above depending on application and manufacturing requirements.
Refer to page 141 for exact ratio of double reduction worm-worm gear reducers.
* Size 832 must be used for NH Series for this selection.
** Size 842 must be used for NH Series for this selection.
indicates a selection where a smaller reducer (1 case size) can be used with redesigned product due to rating increase.
indicates a selection where a smaller reducer (2 case sizes) can be used with redesigned product due to rating increase.
1.75 Service Factor
Nominal Output Input Horsepower @ 1750 RPM
Ratio z RPM 1/8 1/6 1/4 1/3 1/2 3/4 1 1-1/2 2 3 5 7-1/2 10 15
75 23.3 813 815 821 821 824 830 830 842 842 852 860 880 8100 8100
100 17.5 815 815 821 824 826 830 832 842 842 852 870 8100 8100
150 11.7 815 821 824 826 830 832 842 842 852 852 880 8100
200 8.75 821 821 824 826 830* 842 842 852 852 870 8100 8100
250 7.00 821 824 826 830 832** 842 842 852 852 880 8100
300 5.83 821 824 826 830* 832** 842 852 852 860 880 8100
400 4.38 824 826 830 832 842 842 852 852 880 8100
500 3.50 824 826 830* 832** 842 852 852 870 880 8100
600 2.92 826 830 832 842 842 852 852 880 8100 8100
750 2.33 826 830 832** 842 842 852 860 880 8100
900 1.94 830 830* 832** 842 852 852 880 8100 8100
1000 1.75 830 830* 842 842 852 852 880 8100 8100
1200 1.46 830 832 842 842 852 852 880 8100 8100
1500 1.17 832 842 842 852 852 880 8100 8100
1800 9.72 832 842 842 852 852 8100 8100
2400 .729 842 842 852 852 870 8100 8100
3000 .583 842 842 852 852 880 8100 8100
3600 .486 842 842 852 852 8100 8100
1.50 Service Factor
Nominal Output Input Horsepower @ 1750 RPM
Ratio z RPM 1/8 1/6 1/4 1/3 1/2 3/4 1 1-1/2 2 3 5 7-1/2 10 15
75 23.3 813 815 815 821 824 826 830 842 842 852 860 880 880 8100
100 17.5 815 815 821 821 824 830 830* 842 842 852 860 880 8100
150 11.7 815 821 821 824 826 832** 832** 842 852 852 880 8100 8100
200 8.75 815 821 824 826 830 832** 842 842 852 860 880 8100
250 7.00 821 821 824 826 830* 842 842 852 852 870 8100 8100
300 5.83 821 824 826 830 832 842 842 852 852 880 8100
400 4.38 824 824 830 830* 842 842 852 852 860 880 8100
500 3.50 824 826 830 832 842 842 852 852 880 8100
600 2.92 824 826 830* 832** 842 852 852 870 880 8100
750 2.33 826 830 832** 842 842 852 852 880 8100 8100
900 1.94 826 830 832** 842 842 852 852 880 8100
1000 1.75 830 830 832** 842 842 852 860 880 8100
1200 1.46 830 830* 832** 842 852 852 870 8100 8100
1500 1.17 830 832 842 842 852 860 880 8100 8100
1800 9.72 830 842 842 852 852 880 8100 8100
2400 .729 842 842 852 852 852 880 8100
3000 .583 842 842 852 852 852 8100 8100
3600 .486 842 842 852 852 880 8100
2.0 Service Factor
Nominal Output Input Horsepower @ 1750 RPM
Ratio z RPM 1/8 1/6 1/4 1/3 1/2 3/4 1 1-1/2 2 3 5 7-1/2 10 15
75 23.3 815 815 821 824 826 830 832** 842 852 852 880 880 8100
100 17.5 815 815 821 824 826 830* 842 842 852 852 880 8100 8100
150 11.7 821 821 824 826 830* 832** 842 852 852 870 8100 8100
200 8.75 821 824 826 830 832 842 842 852 852 880 8100
250 7.00 821 824 826 830* 832** 842 852 852 860 880 8100
300 5.83 824 824 830 832 842 842 852 852 870 8100 8100
400 4.38 824 826 830* 832** 842 852 852 860 880 8100
500 3.50 826 830 832 842 842 852 852 880 8100 8100
600 2.92 826 830 832** 842 852 852 860 880 8100 8100
750 2.33 830 830* 842 842 852 852 870 8100 8100
900 1.94 830 832 842 842 852 852 880 8100 8100
1000 1.75 830 832 842 842 852 860 880 8100 8100
1200 1.46 830* 832** 842 842 852 870 880 8100
1500 1.17 832 842 842 852 860 880 8100 8100
1800 9.72 842 842 852 852 860 8100 8100
2400 .729 842 842 852 852 880 8100 8100
3000 .583 842 842 852 852 880 8100
3600 .486 842 852 852 852 8100