| |
Worm Gear Speed Reducers below 1/2 horsepower
HP
|
RATIO
|
DESCRIPTION
|
QTY
|
Input
shaft
|
Output
|
0
|
0
|
FOOTE-BROTHERS:
6T
|
2
|
1-1/2"
|
2-3/4"
|
0
|
0
|
D.O.
JAMES: 120H
|
1
|
"
|
"
|
0
|
116.7
|
JERVIS-WEBB:
B/300/62
|
1
|
"
|
"
|
0
|
0
|
CONE-DRIVE:
SO-51815C-AJC
|
1
|
1-3/16"
|
1-7/8"
|
0.02
|
3600
|
ABART:
300-DW
|
2
|
3/4"
|
1-1/2"
|
0.04
|
200
|
OHIO:
VOT-A
|
3
|
1/2"
|
1/2"
|
0.06
|
456
|
ABART:
225-DW
|
1
|
5/8"
|
1"
|
0.07
|
672
|
WINSMITH:
3DBI
|
1
|
5/8"
|
1"
|
0.07
|
2000
|
OHIO:
DHS1-E
|
1
|
5/8"
|
1"
|
0.08
|
4
|
OHIO: DOX
|
1
|
1/2"
|
1/2"
|
0.08
|
600
|
BOSTON:
TW113A
|
1
|
1/2"
|
5/8"
|
0.09
|
600
|
WINSMITH:
4DBI
|
3
|
3/4"
|
1"
|
0.1
|
740
|
ABART:
300-DW
|
3
|
3/4"
|
1-1/2"
|
0.1
|
2000
|
WINSMITH:
4DB
|
1
|
1/2"
|
1"
|
0.12
|
50
|
OHIO:
DOT/DOX
|
7
|
1/2"
|
1/2"
|
0.12
|
80
|
BOSTON:
BA
|
1
|
1/2"
|
3/4"
|
0.12
|
80
|
BOSTON:
TA80
|
1
|
1/2"
|
3/4"
|
0.13
|
58
|
BOSTON:
AD
|
4
|
1/2"
|
5/8"
|
0.14
|
2000
|
PHILADELPHIA:
250/325 DAT
|
1
|
3/4"
|
1-7/16"
|
0.15
|
30
|
OHIO: DOX
|
1
|
1/2"
|
1/2"
|
0.15
|
300
|
GROVE:
DU-175
|
1
|
1/2"
|
7/8"
|
0.16
|
10
|
OHIO:
VOT-10A
|
1
|
1/2"
|
1/2"
|
0.16
|
36
|
OHIO: DOX
|
1
|
1/2"
|
1/2"
|
0.16
|
43
|
PERFECTION:
1/6hp CO-RPM: 43.75
|
1
|
"
|
"
|
0.16
|
60
|
OHIO:
B133
|
7
|
1/2"
|
5/8"
|
0.16
|
75
|
BOSTON:
LD 300
|
1
|
1/2"
|
7/8"
|
0.16
|
600
|
MORSE:
25W-DB
|
1
|
5/8"
|
1-1/4"
|
0.17
|
50
|
OHIO:
B133
|
9
|
1/2"
|
5/8"
|
0.17
|
99
|
D.O.
JAMES: 27H
|
1
|
5/8"
|
3/4"
|
0.18
|
40
|
BOSTON:
U113
|
1
|
1/2"
|
5/8"
|
0.18
|
48
|
BOSTON:
U48
|
1
|
5/8"
|
7/8"
|
0.18
|
50
|
BOSTON:
T115
|
1
|
5/8"
|
3/4"
|
0.2
|
1
|
BOSTON:
WC321-300
|
1
|
1/2"
|
1"
|
0.21
|
2000
|
LINK-BELT:
DWB50
|
1
|
3/4"
|
1-7/8"
|
0.22
|
200
|
MORSE:
20W-DB
|
1
|
1/2"
|
1"
|
0.23
|
40
|
OHIO:
B133
|
7
|
1/2"
|
5/8"
|
0.23
|
50
|
BOSTON:
UNKNOWN
|
4
|
1/2"
|
1/2"
|
0.23
|
50
|
BOSTON:
LB (LW13)
|
6
|
1/2"
|
1/2"
|
0.23
|
58
|
BOSTON:
T20
|
1
|
5/8"
|
3/4"
|
0.24
|
1200
|
GROVE:
DU-325
|
2
|
5/8"
|
1-1/2"
|
0.25
|
16
|
EBERHARDT-DENVER:
13L-DB
|
1
|
1/2"
|
5/8"
|
0.25
|
19
|
BOSTON:
TA2G
|
2
|
1/2"
|
3/4"
|
0.25
|
30
|
OHIO:
BHU-A
|
1
|
1/2"
|
1/2"
|
0.25
|
30
|
OHIO:
BHU-A
|
1
|
1/2"
|
1/2"
|
0.25
|
40
|
PERFECTION:
ST1840-B
|
1
|
1/2"
|
3/4"
|
0.25
|
40
|
AMERICAN:
206 (PERFECTION?)
|
1
|
5/8"
|
7/8"
|
0.25
|
48
|
EBERHARDT-DENVER:
2L1SPT
|
1
|
5/8"
|
7/8"
|
0.25
|
50
|
BOSTON:
715-50-J
|
1
|
5/8"
|
3/4"
|
0.25
|
50
|
BOSTON:
TA50
|
2
|
1/2"
|
3/4"
|
0.25
|
50
|
BOSTON:
TA50
|
1
|
1/2"
|
3/4"
|
0.25
|
63
|
D.O.
JAMES: 22S
|
1
|
5/8"
|
7/8"
|
0.25
|
80
|
BOSTON:
UE80
|
1
|
3/4"
|
1"
|
0.25
|
81
|
D.O.
JAMES: 31
|
1
|
5/8"
|
1-3/16"
|
0.25
|
145
|
EBERHARDT-DENVER:
21L-DV
|
1
|
1/2"
|
5/8"
|
0.25
|
800
|
GRANT:
DWV-258
|
1
|
1/2"
|
1"
|
0.25
|
2500
|
CLEVELAND:
025-D
|
1
|
7/8"
|
1-5/8"
|
0.26
|
40
|
BOSTON:
U118
|
2
|
5/8"
|
7/8"
|
0.27
|
25
|
BOSTON:
LB (LW13)
|
3
|
1/2"
|
1/2"
|
0.27
|
60
|
PERFECTION:
SB2160-B
|
1
|
5/8"
|
7/8"
|
0.28
|
40
|
OHIO:
U-18-MC
|
1
|
56C
|
3/4"
|
0.28
|
60
|
OHIO:
B175
|
4
|
5/8"
|
7/8"
|
0.28
|
60
|
HUB CITY:
181
|
41
|
1/2"
|
3/4"
|
0.28
|
60
|
OHIO:
B175
|
1
|
5/8"
|
7/8"
|
0.28
|
60
|
OHIO:
B175
|
4
|
5/8"
|
7/8"
|
0.29
|
54
|
D.O.
JAMES: 27HT
|
1
|
1/2"
|
7/8"
|
0.29
|
54
|
D.O.
JAMES: 27HT
|
1
|
1/2"
|
3/4"
|
0.3
|
50
|
BOSTON:
U118
|
1
|
5/8"
|
3/4"
|
0.3
|
50
|
BOSTON:
U118
|
1
|
"
|
"
|
0.3
|
900
|
GROVE:
DU-325
|
1
|
5/8"
|
1-1/2"
|
0.32
|
50
|
OHIO:
B175
|
1
|
5/8"
|
7/8"
|
0.32
|
50
|
BOSTON:
718-50-G
|
2
|
5/8"
|
7/8"
|
0.32
|
60
|
FOOTE-BROTHERS:
2T200B
|
1
|
5/8"
|
7/8"
|
0.32
|
300
|
BROWNING:
237DR-20-L
|
1
|
1/2"
|
1-1/8"
|
0.33
|
30
|
PERFECTION:
ST1830-B
|
1
|
1/2"
|
3/4"
|
0.33
|
30
|
GROVE:
B1133-2
|
1
|
1/2"
|
5/8"
|
0.33
|
30
|
PERFECTION:
ST1830-A
|
18
|
1/2"
|
3/4"
|
0.33
|
40
|
RELIANCE:
B-40
|
1
|
5/8"
|
3/4"
|
0.33
|
40
|
BOSTON:
TA40
|
1
|
1/2"
|
3/4"
|
0.33
|
40
|
BOSTON:
TA40
|
1
|
1/2"
|
3/4"
|
0.33
|
50
|
WINSMITH:
4B
|
6
|
5/8"
|
3/4"
|
0.33
|
50
|
WINSMITH:
4B
|
1
|
5/8"
|
3/4"
|
0.33
|
50
|
WINSMITH:
4B
|
1
|
5/8"
|
3/4"
|
0.33
|
60
|
WINSMITH:
4-1/2BT
|
1
|
3/4"
|
1-1/4"
|
0.33
|
60
|
BOSTON:
T8A
|
1
|
3/4"
|
1"
|
0.33
|
60
|
BOSTON:
TAA-60
|
1
|
3/4"
|
1"
|
0.33
|
60
|
BOSTON:
TAA-60
|
1
|
3/4"
|
1"
|
0.33
|
225
|
WINSMITH:
4DB
|
1
|
3/4"
|
1"
|
0.34
|
30
|
OHIO:
U-18-MC
|
1
|
56C
|
3/4"
|
0.34
|
49
|
WINSMITH:
3CB
|
1
|
5/8"
|
7/8"
|
0.34
|
50
|
OHIO:
B175
|
3
|
5/8"
|
7/8"
|
0.34
|
60
|
EBERHARDT-DENVER:
18SF-60
|
3
|
5/8"
|
1"
|
0.35
|
15
|
RADICON:
112-2A
|
6
|
7/16"
|
5/8"
|
0.35
|
15
|
RADICON:
112-1A
|
1
|
7/16"
|
5/8"
|
0.36
|
250
|
OHIO: D3
|
1
|
5/8"
|
1"
|
0.37
|
44
|
FOOTE-BROTHERS:
3W
|
2
|
13/16
|
1-1/16"
|
0.37
|
48
|
MORSE:
21LT
|
1
|
5/8"
|
3/4"
|
0.37
|
66
|
BOSTON:
UF66 (now U-38)
|
1
|
1"
|
1-3/8"
|
0.37
|
100
|
OHIO:
HS-1
|
1
|
5/8"
|
1"
|
0.38
|
20
|
OHIO:
U-13-MC
|
1
|
56C
|
5/8"
|
0.38
|
66
|
EBERHARDT-DENVER:
26W
|
2
|
3/4"
|
1-1/8"
|
0.38
|
66
|
EBERHARDT-DENVER:
26LV
|
1
|
3/4"
|
1"
|
0.38
|
66
|
EBERHARDT-DENVER:
26W
|
5
|
3/4"
|
1-1/8"
|
0.38
|
2080
|
CLEVELAND:
73D
|
1
|
1-1/4"
|
2-7/8"
|
0.39
|
40
|
PERFECTION:
ST2140-B
|
3
|
5/8"
|
7/8"
|
0.39
|
40
|
PERFECTION:
ST2140-UB
|
2
|
5/8"
|
7/8"
|
0.39
|
40
|
PERFECTION:
TC2140-UB
|
1
|
5/8"
|
7/8"
|
0.39
|
48
|
BOSTON:
U21SP
|
4
|
5/87/8"
|
"
|
0.42
|
40
|
BOSTON:
S718-40-G
|
4
|
5/8"
|
1"
|
0.42
|
50
|
PERFECTION:
ST2450-B
|
1
|
3/4"
|
1"
|
0.42
|
58
|
WINSMITH:
3CB
|
1
|
5/8"
|
3/4"
|
0.43
|
20
|
OHIO:
U-18-MC
|
1
|
56C
|
3/4"
|
0.43
|
50
|
OHIO:
HS-0
|
1
|
1/2"
|
3/4"
|
0.43
|
50
|
OHIO:
HS-0
|
6
|
1/2"
|
3/4"
|
0.43
|
68
|
D.O.
JAMES: 26ST
|
1
|
3/4"
|
1-1/8"
|
0.43
|
68
|
D.O.
JAMES: 26ST
|
1
|
3/4"
|
1-1/8"
|
0.44
|
50
|
BROWNING:
175U1-LR-50E
|
1
|
5/8"
|
3/4"
|
0.46
|
60
|
EBERHARDT-DENVER:
20V
|
1
|
3/4"
|
1"
|
0.47
|
15
|
HUB CITY:
131
|
1
|
1/2"
|
5/8"
|
0.47
|
15
|
BOSTON:
U124
|
1
|
3/4"
|
1"
|
0.47
|
20
|
PERFECTION:
ST1820-B
|
1
|
1/2"
|
3/4"
|
0.47
|
20
|
PERFECTION:
ST1820-A
|
1
|
1/2"
|
3/4"
|
0.47
|
50
|
RADICON:
WA-200
|
1
|
5/8"
|
1"
|
0.47
|
50
|
RADICON:
AA200
|
1
|
5/8"
|
1"
|
0.48
|
15
|
OHIO:
B133
|
2
|
1/2"
|
5/8"
|
0.48
|
30
|
BOSTON:
U118
|
2
|
5/8"
|
3/4"
|
0.48
|
315
|
D.O.
JAMES: 35DW
|
1
|
3/4"
|
1-3/8"
|
0.49
|
25
|
PERFECTION:
ST1325-B
|
1
|
1/2"
|
5/8"
|
|