Grove Gear 8050 Catalog
Exact Ratios GR, NH & EL Series
Single Reduction Worm Gear Reducers
+6<)3, 9,+<*;065 >694¶>694 ,?(*; 9(;06 *64)05(;065:
Total
GEAR REDUCER SIZE
813
815 (GR+NH)
818
821
824
826
830**
Ratio
P
S
P
S
P
S
P
S
P
S
P
S
P
S
813
813
813
815
813
818
813
821
813
824
813
826
818
830
75
5
15
5
15
5
15
5
15
5
15
5
15
5
15
100 150 200 250 300 400 500 600 750 900
5
20
5
20
5
20
5
20
5
20
5
20
5
20
Worm - Worm Gear Reducers
10
15
7.5
20
10
15
10
15
10
15
7.5
20
10
15
Double Reduction
10
20
10
20
10
20
10
20
10
20
10
20
10
20
10
25
10
25
10
25
10
25
10
25
10
25
10
25
10
30
15
20
10
30
15
20
15
20
15
20
20
15
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
25
25
20
25
20
25
20
25
20
25
20
20
25
20
30
30
20
20
30
30
20
20
30
30
20
20
30
30
25
30
25
25
30
25
30
25
30
30
25
30
25
30
30
30
30
30
30
30
30
30
30
30
30
30
30
Helical - Worm Gear Reducers
1000 40 1200 40 1500 60 1800 60 2400 60 3000 60 3600 60
25
50
20
50
20
50
20
50
20
50
20
40
25
Double Reduction
30
60
20
40
30
40
30
40
30
60
20
40
30
25
60
25
50
30
50
30
50
30
60
25
60
25
30
60
30
60
30
60
30
60
30
60
30
60
30
40
60
40
60
40
60
40
60
40
60
40
60
40
50
60
50
60
50
60
50
60
50
60
50
60
50
60
60
60
60
60
60
60
60
60
60
60
60
60
Total
GEAR REDUCER SIZE
WASHGUARD ® Reducers and GEAR+MOTOR™ Ratio Multipliers
832**
842
852
860
870
880
8100
Ratio
P
S
P
S
P
S
P
S
P
S
P
S
P
S
818
832
821
842
826
852
832
860
832
870
842
880
852
8100
75
5
15
5
15
5.17
15
5.17
15
5.17 14.67 5.17 14.67
5.13
14.67
100 150 200 250 300 400 500 600 750 900
5
20
5
20
5.17
20
5.17
20
5.17 20.50 5.17 20.50
5.13
20.50
5
30
7.5
20
7.5
20
10
15
7.5 20.50 7.5
20.50
10
14.67
10
20
10
20
10
20
10
20
10
20.50
10
20.50
10
20.50
10
25
10
25
10
25
10
25
10
24.50
10
24.50
10
24.50
10
30
15
20
15
20
20
15
15
20.50
15
20.50
20
14.67
20
20
20
20
20
20
20
20
20
20.50
20
20.50
20
20.50
25
20
25
20
25
20
25
20
25
20.50
25
20.50
25
20.50
20
30
30
20
30
20
30
20
30
20.50
30
20.50
30
20.50
25
30
25
30
30
25
30
25
30
24.50
30
24.50
30
24.50
30
30
30
30
30
30
60
15
30
29.50
30
29.50
60
14.67
1000 25 1200 40 1500 50 1800 60 2400 60 3000 60 3600 60
40
25
40
40
25
50
20
50
20.50
40
24.50
50
20.50
30
40
30
40
30
60
20
60
20.50
40
29.50
60
20.50
30
50
30
60
25
60
25
60
24.50
60
24.50
60
24.50
30
60
30
60
30
60
30
60
29.50
60
29.50
60
29.50
40
60
40
60
40
60
40
60
40
60
40
60
40
50
60
50
60
50
60
50
60
50
60
50
60
50
Additional Capabilities
60
60
60
60
60
60
60
60
60
60
60
60
60
Accessories and
Note: Exact ratios are listed. P = Primary stage reducer ratio S = Secondary stage reducer ratio * Actual ratio combinations supplied by Factory may vary from above depending on application and manufacturing requirements. ** For NH Series, P = 815
For exact total of double reduction package multiply “P” by the “S” ratio.
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