Grove Gear Products Catalog 8050

Maximum Rating Tables Size 870, 880, 8100 • GR Series

Single Reduction

Worm Gear Reducers

Size 870, 880, 8100

Output Torque (lb-in) 9062 11404 26416 10572 13304 28388 12033 15143 32661 12827 16143 31744 13431 16903 33520 13462 16417 32790 13356 16491 31233 13399 16416 32194 13011 15966 31109 12220 15143 28131 11300 13979 26222

Output Torque (lb-in) 11866 14932 36447 13867 17451 39793 14447 18181 41958 16766 21099 44195 17575 22118 46792 17578 22122 45421 17166 21058 41088 17507 22032 44687 17028 21429 43469 15982 19430 39244 14743 17921 36215

Output Torque (lb-in) 18619 23431 63935 21413 26947 67727 22466 28273 72712 26308 33107 77295 27597 34730 82011 27618 34756 79871 27433 34523 76598 27471 34571 78246 26703 33605 75935 25107 31597 69119 23235 29240 64584

Input

Output

Input

Output

Input

Output

Input

Output

Ratio

RPM RPM

HP

HP

HP

HP

HP

HP

1750 350 1170 234

51.1 43.3

49.1 41.3 8.18 39.6 33.3 6.09 28.8 5.32 24.2 20.4 3.44 18.2 15.3 2.60 15.2 12.4 2.12 12.5 10.3 1.68 9.31 7.62 1.28 7.23 5.93 0.99 5.66 4.69 0.74 4.48 3.71 0.60

66.8 56.6 13.9 54.3 46.0 9.72 43.3 36.7 7.96 33.8 28.7 5.75 25.9 22.1 4.63 21.9 18.7 3.86 17.9 14.9 2.94 14.0 12.1 2.64 11.3 9.84 2.22 9.05 7.63 1.75 7.37 6.24 1.48

64.3 54.1 12.4 52.0 43.8 8.54 41.1 34.6 6.83 31.7 26.7 6.82 23.8 20.0 3.62 19.9 16.7 2.94 16.1 13.2 2.21 12.1 10.2 1.77 9.46 7.96 1.38 7.40 6.01 1.04 5.85 4.76 0.82

104.6

100.9

5

88.5 22.1 84.4 71.4 16.5 67.1 56.8 13.6 52.7 44.8 9.95 40.4 34.4 8.01 34.2 29.2 6.70 28.5 24.4 5.49 21.8 18.8 4.54 17.4 15.1 3.79 13.9 12.1 3.01 11.4 9.98 2.59

84.9 19.8 81.1 68.2 14.6 64.0 53.8 11.8 49.8 41.9 8.37 37.3 31.4 6.35 31.3 26.3 5.18 25.8 21.7 4.12 19.0 16.0 3.11 14.8 12.4 2.41 11.6 9.78 1.83 9.22 7.76 1.46

(5.13 actual) 100

20

9.2

1750 233 1170 156

41.5 35.2 6.97

7.5

(7.33 actual) 100

13

Double Reduction

1750 175

36.16 30.72

34.28

10

Worm - Worm Gear Reducers 1170 117

(9.75 actual) 100

10

6.22 25.9 22.1 4.16 19.9 17.0 3.35 16.9 14.0 2.82 14.1 11.9 2.30 10.8 9.18 1.94 8.74 7.43 1.62 7.00 6.03 1.27 5.74 4.96 1.09

1750 116 1170 78

15

(14.67 actual) 100 607

1750 887 1170 58

20

(20.50 actual) 100

5.0

1750 70 1170 46

25

Double Reduction

(24.50 actual) 100

4.0

1750 58

30

Helical - Worm Gear Reducers 1170 39

(29.50 actual) 100

3.3

1750 43 1170 29

40

100

2.5

1750 35 1170 23

WASHGUARD ® Reducers 50 60

100

2.0

1750 29 1170 19

100

1.7

and GEAR+MOTOR™ Ratio Multipliers 70 100 Fraction Size Decimal Size Output Bore Code 1750 21 1170 14

1.3

Specify model number when ordering reducer size 870, 880 or 8100. Refer to page 19 for how to build a model number.

Available bore codes - Size 870

2-7/16”

2-1/2” 2.500

2-11/16”

2-15/16”

3”

3-7/16”

3-15/16”

2.438

2.688

2.938

3.000

3.438

3.938

39

40

43

47

48

55

63

Available bore codes - Size 880

Fraction Size Decimal Size

3-7/16”

3-15/16”

4-3/16”

4-7/16”

3.438

3.938

4.188

4.438

Output Bore Code

55

63

67

71

Available bore codes - Size 8100

Fraction Size Decimal Size

3-7/16”

3-15/16”

4-7/16”

4-15/16”

5-7/16”

3.438

3.938

4.438

4.938

5.438

Output Bore Code

55

63

71

79

87

Accessories and

Additional Capabilities

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