Grove Gear 8050 Catalog

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Single Reduction Worm Gear Reducers

1.50 Service Factor Nominal Output

Input Horsepower @ 1750 RPM

Ratio z

RPM 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 RPM 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 RPM 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

1/8 813 815 815 821 821 821 824 824 826 826 830 830 830 832 832 842 842 842 1/8 813 815 815 815 821 821 824 824 824 826 826 830 830 830 830 842 842 842 1/8 815 815 821 821 821 824 824 826 826 830 830 830 832 842 842 842 842

1/6 1/4 815 815 815 821 821 821 821 824 821 824 824 826 824 830 826 830

1/3 821 821 824 826

1/2

3/4

1 1-1/2

2

3

5 7-1/2

10 15 880 8100

75

824 826 830 824 830 830* 826 832** 832** 830 832** 842

842 842 842 842 852 852 852 852 870 880 880 880

842 842 852 852 852 852 860

852 852 852 860

860 860 880 880

880 880

100 150 200 250 300 400 500 600 750 900

8100

8100 8100

8100

826 830* 842 842

870 8100 8100

830

832 842 842

880 8100 880 8100

Worm - Worm Gear Reducers

830* 842 842 852

832

842 842 852

880 8100 880 8100 8100 8100

Double Reduction

826 830* 832** 842 852 852

830 832** 842 830 832** 842 830 832** 842 830* 832** 842

842 852 852 842 852 852 842 852 860 852 852 870 852 860 880 852 880 8100 852 880 8100 852 8100 8100

8100 8100

1000 1200 1500 1800 2400 3000 3600

8100 8100 8100 8100

832 842 842 842 842 852 842 852 842 852

842 852 852 852 852

8100

880 8100

Helical - Worm Gear Reducers

1.75 Service Factor Nominal Output

Input Horsepower @ 1750 RPM

Double Reduction

Ratio z

1/6 1/4 815 821 815 821 821 824 821 824 824 826 824 826 826 830

1/3 821 824 826

1/2

3/4

1 1-1/2

2

3

5 7-1/2

10 15

75

824 830 830 826 830 832 830 832 842

842 842 842 852 852 852 852 870 880 880

842 842 852 852 852 860

852 852 852

860 870 880

880

8100 8100

100 150 200 250 300 400 500 600 750 900

8100 8100

8100

826 830* 842 842 830 832** 842 842 830* 832** 842 852

870 8100 8100

880 8100 880 8100

832

842 842 852

880 8100 880 8100 8100 8100

826 830* 832** 842 852 852

830 832

842

842 852 852 842 852 860 852 852 880 852 852 880 852 852 880 852 880 8100 852 8100 8100 870 8100 8100 880 8100 8100

830 832** 842 830* 832** 842

8100

8100 8100 8100 8100 8100 8100

WASHGUARD ® Reducers and GEAR+MOTOR™ Ratio Multipliers

1000 1200 1500 1800 2400 3000 3600

830* 842 832 842 842 842 842 842 842 852 842 852 842 852

842 842 852 852 852 852

8100

852 8100 8100

2.0 Service Factor Nominal Output

Input Horsepower @ 1750 RPM

Ratio z

1/6 1/4 815 821 815 821 821 824 824 826 824 826 824 830 830* 842 832 842 832 842 842 842 842 852 842 852 842 852 852 852 830 832

1/3 824 824

1/2

3/4

1 1-1/2

2

3

5 7-1/2

10 15

75

826 830 832** 826 830* 842

842 842 852 852 852 852 860 880 880

852 852 852 852 860

852 852

880 880

880

8100

100 150 200 250 300 400 500 600 750 900

8100 8100

826 830* 832** 842

870 8100 8100

830

832 842 842

880 8100 880 8100

830* 832** 842 852

832

842 842 852

870 8100 8100

826 830* 832** 842 852 852

880 8100 8100 8100 8100 8100

842

842 852 852 852 852 860 852 852 870 852 852 880 852 860 880 852 870 880 860 880 8100 860 8100 8100 880 8100 8100

830 832** 842

842 842 842 842 852 852 852 852

8100 8100 8100 8100 8100 8100

1000 1200 1500 1800 2400 3000 3600

830* 832** 842

8100 8100

Additional Capabilities

Accessories and

880 8100

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 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.

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