Grove Gear Products Catalog 8050

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Single Reduction Worm Gear Reducers

1.50 Service Factor Nominal Output

Input Horsepower @ 1750 RPM

Ratio ♠

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 17.5 11.7 8.75 7.00 5.83 4.38 3.50 2.92 2.33 1.94 1.75 1.46 1.17 9.72 .729 .583 .486 23.3 17.5 11.7 8.75 7.00 5.83 4.38 3.50 2.92 2.33 1.94 1.75 1.46 1.17 9.72 .729 .583 .486 23.3 17.5 11.7 8.75 7.00 5.83 4.38 3.50 2.92 2.33 1.94 1.75 1.46 1.17 9.72 .729 .583 .486

813 815 815 821 824 826 830 842 842 852 860 880 880 8100

100 150 200 250 300 400 500 600 750 900

815 815 821 821 824 830 830* 815 821 821 824 826 832** 832**

842 842 852 860 880 8100 842 852 852 880 8100 8100

815 821 824 826 830 832** 842 842 852 860 880 8100 821 821 824 826 830* 842 842 852 852 870 8100 8100 821 824 826 830 832 842 842 852 852 880 8100 824 824 830 830* 842 842 852 852 860 880 8100

Worm - Worm Gear Reducers

824 826 830 832 842 842 852 852 880 8100 824 826 830* 832** 842 852 852 870 880 8100 826 830 832** 842 842 852 852 880 8100 8100 826 830 832** 842 842 852 852 880 8100 830 830 832** 842 842 852 860 880 8100 830 830* 832** 842 852 852 870 8100 8100 830 832 842 842 852 860 880 8100 8100

Double Reduction

1000 1200 1500 1800 2400 3000 3600

830 842 842 852 852 880 8100 8100 842 842 852 852 852 880 8100 842 842 852 852 852 8100 8100

842 842 852 852 880 8100

Helical - Worm Gear Reducers

1.75 Service Factor Nominal Output

Input Horsepower @ 1750 RPM

Double Reduction

Ratio ♠

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

813 815 821 821 824 830 830 842 842 852 860 880 8100 8100 815 815 821 824 826 830 832 842 842 852 870 8100 8100 815 821 824 826 830 832 842 842 852 852 880 8100 821 821 824 826 830* 842 842 852 852 870 8100 8100

100 150 200 250 300 400 500 600 750 900

821 824 826 830 832** 842 842 852 852 880 8100 821 824 826 830* 832** 842 852 852 860 880 8100 824 826 830 832 842 842 852 852 880 8100 824 826 830* 832** 842 852 852 870 880 8100 826 830 832 842 842 852 852 880 8100 8100

826 830 832** 842 842 852 860 880 8100 830 830* 832** 842 852 852 880 8100 8100 830 830* 842 842 852 852 880 8100 8100 830 832 842 842 852 852 880 8100 8100 832 842 842 852 852 880 8100 8100

WASHGUARD ® Reducers and GEAR+MOTOR™ Ratio Multipliers

1000 1200 1500 1800 2400 3000 3600

832 842 842 852 852 8100 8100 842 842 852 852 870 8100 8100 842 842 852 852 880 8100 8100 842 842 852 852 8100 8100

2.0 Service Factor Nominal Output

Input Horsepower @ 1750 RPM

Ratio ♠

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

815 815 821 824 826 830 832**

842 852 852 880 880 8100

100 150 200 250 300 400 500 600 750 900

815 815 821 824 826 830* 842 842 852 852 880 8100 8100 821 821 824 826 830* 832** 842 852 852 870 8100 8100 821 824 826 830 832 842 842 852 852 880 8100 821 824 826 830* 832** 842 852 852 860 880 8100 824 824 830 832 842 842 852 852 870 8100 8100

824 826 830* 832** 842 852 852 860 880 8100 826 830 832 842 842 852 852 880 8100 8100 826 830 832** 842 852 852 860 880 8100 8100 830 830* 842 842 852 852 870 8100 8100 830 832 842 842 852 852 880 8100 8100 830 832 842 842 852 860 880 8100 8100

1000 1200 1500 1800 2400 3000 3600

830* 832** 842 842 852 870 880 8100 832 842 842 852 860 880 8100 8100 842 842 852 852 860 8100 8100 842 842 852 852 880 8100 8100

Additional Capabilities

Accessories and

842 842 852 852 880 8100

842 852 852 852 8100

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 122-126. ♠ Actual ratio combinations supplied by Factory may vary from above depending on application and manufacturing requirements. Refer to page 131 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.

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