D e c l i n e
o f
t h e
IRON AGE
THE INNOVATIVE TEAM IN POWER TRANSMISSION
Worm Gear Reducers 1
8
2
1
3 2
Aluminum alloy housing with patented heat sink design provides greater surface area and higher thermal capacity than traditional cast-iron housings.
2 Two bearings along the input shaft prevent leaks and contribute to flexibility in mounting. High quality SKF bearings increase reducer life versus worm reducers with a bushing on the input.
7 Standard hollow output bore
and optional plug-in shafts provide greater flexibility in ordering and reduced inventory.
8 Polyester epoxy paint applied on the
inside and outside of the gearcase protects against rust.
9 No vent plug or breather is required,
which means a maintenance-free reducer that is sealed for life. This prevents risk of oil oxidation and contamination and allows universal mounting.
3 NEMA
and IEC motor inputs available for greater customer flexibility.
4
7
4 Double-lip oil seals, designed with NOK, aid the reducer’s thermal capacity and extended the reducer’s oil life.
5
required, preventing leaks and contributing to mounting flexibility. This helps prevent risk of oil oxidation and contamination.
5 Use of O-rings on the input flange
11 Automated manufacturing process
6 Hardened
12 Aluminum units are prefilled with
and output cover prevents leaks more effectively than a paper gasket.
4
10 No compression chamber (“bladder”)
worm shaft gives increased durability versus forged worm shafts.
6
from an ISO 9001 certified company assures quality, reliable gearing. synthetic oilI; cast iron units are prefilled with mineral oil.
Nomenclature NMRV
110
40
Model
Size
Ratio
Aluminum Housing
NMRV Motor Input Flange
030 040 050 063 075 090 Cast Iron Housing
NRV Input Shaft
110 130 150
5 7.5 10 15 20 25 30 40 50 60 80 100
180TC
Foot Mount
B3
Input Size Output Design Mounting Position
Protective Cover Accessories
Shaft Mounted
48C 56C 140TC 180TC 210TC 250TC
standard hollow output bore
Foot Mounted optional single or double plug-in output shaft
Flange Mounted optional F or FL mounting flange and hollow output bore
B3 B6 B7 B8 V5 V6
Torque Arm Baseplate Double Extension Worm Shaft Protective Cover
Worm Gear Reducer Ratings 1750 RPM Torque
Ratio
RPM
NMRV 030 NRV 030
5 7.5 10 15 20 25 30 40 50 60 80
350 233 175 117 88 70 58 44 35 29 22
159 159 159 159 159 186 177 159 150 142 115
1.02 0.69 0.54 0.38 0.30 0.30 0.25 0.19 0.15 0.13 0.09
113 129 142 163 179 193 205 225 243 259 284
NMRV 040 NRV 040
5 7.5 10 15 20 25 30 40 50 60 80 100
350 233 175 117 88 70 58 44 35 29 22 18
301 354 354 354 345 336 398 363 345 319 292 257
1.88 1.51 1.16 0.80 0.61 0.50 0.53 0.39 0.31 0.25 0.19 0.15
221 253 279 319 350 378 403 441 476 507 556 595
NMRV 050 NRV 050
5 7.5 10 15 20 25 30 40 50 60 80 100
350 233 175 117 88 70 58 44 35 29 22 18
549 628 637 655 646 619 743 672 646 602 575 487
3.43 2.64 2.06 1.48 1.14 0.90 0.96 0.70 0.57 0.47 0.38 0.28
322 369 406 464 510 551 586 643 694 739 810 866
NMRV 063 NRV 063
7.5 10 15 20 25 30 40 50 60 80 100
233 175 117 88 70 58 44 35 29 22 18
1133 1150 1239 1194 1150 1416 1283 1194 1150 1079 1044
4.77 3.67 2.76 2.05 1.64 1.77 1.27 1.01 0.86 0.66 0.57
463 510 583 641 692 736 807 871 928 1017 1088
NMRV 075 NRV 075
7.5 10 15 20 25 30 40 50 60 80 100
233 175 117 88 70 58 44 35 29 22 18
1637 1725 1770 1858 1770 2035 1947 1858 1770 1681 1593
6.81 5.45 3.86 3.15 2.46 2.48 1.88 1.50 1.26 0.97 0.80
549 604 691 759 820 873 957 1033 1099 1205 1289
(in-lbs)
Max HP
OHL
Model
(lbs)
Torque
Ratio
RPM
NMRV 090 NRV 090
7.5 10 15 20 25 30 40 50 60 80 100
233 175 117 88 70 58 44 35 29 22 18
2566 2743 3185 3141 3008 3628 3185 3008 2831 2522 2389
10.56 8.56 6.86 5.19 4.08 4.31 2.95 2.32 1.90 1.39 1.12
631 694 794 873 942 1003 1100 1187 1264 1386 1482
NMRV 110 NRV 110
7.5 10 15 20 25 30 40 50 60 80 100
233 175 117 88 70 58 44 35 29 22 18
4247 4601 5043 4955 5220 5574 5397 5309 4955 4336 4070
17.48 14.36 10.86 8.10 6.90 6.53 4.81 3.93 3.19 2.25 1.79
776 853 976 1073 1158 1233 1352 1459 1553 1703 1821
NMRV 130 NRV 130
7.5 10 15 20 25 30 40 50 60 80 100
233 175 117 88 70 58 44 35 29 22 18
6636 7255 8140 8052 8229 9202 9290 8671 7963 7432 6548
27.01 22.64 17.33 13.00 10.88 10.65 8.27 6.42 5.12 3.79 2.84
1017 1119 1279 1407 1518 1616 1772 1913 2036 2233 2387
NMRV 150 NRV 150
7.5 10 15 20 25 30 40 50 60 80 100
233 175 117 88 70 58 44 35 29 22 18
10618 10972 11060 11502 10618 10618 13715 12387 11149 10175 8848
43.22 33.86 23.27 18.58 14.04 11.85 12.21 9.05 7.07 5.20 3.84
1425 1568 1793 1971 2127 2265 2484 2680 2854 3129 3346
(in-lbs)
Max HP
OHL
Model
(lbs)
Worm Gear Reducers NMRV
NRV
SB
Shaft Mount
Foot Mount
Flange Mount
B
Single & Double Output Shaft
Output Flange
Hollow Output Bore
A AB AC AJ AJ1 AK AK1 AQ
030
040
050
063
075
090
110
130
150
2.48 2.15 1.57 2.68 2.56 0 1.97 -0.0007 +0 2.17 -0.0018 3.15
3.07 2.64 (3.82) 1.97 2.95 (3.43) 2.95 0 2.36 -0.0007 +0 2.36 -0.0018 3.94
3.62 3.54 (4.72) 2.36 3.35 (3.54) 3.35 -0 2.76 -0.0007 +0 2.76 -0.0018 4.72
4.41 3.23 (4.41) 2.83 5.91 (5.91) 3.74 0 4.53 -0.0009 +0 3.15 -0.0021 5.67
4.72 4.37 3.39 6.49 4.53 0 5.12 -0.001 +0 3.74 -0.0021 6.77
5.51 4.37 4.06 6.89 5.12 0 5.98 -0.001 +0 4.33 -0.0021 8.11
6.10 5.16 5.02 9.06 6.50 0 6.69 -0.001 +0 5.12 -0.0025 9.94
6.69 5.51 5.81 10.03 8.46 0 7.09 -0.001 +0 7.09 -0.0025 11.52
7.87 6.10 6.69 10.03 8.46 0 7.09 -0.001 +0 7.09 -0.0025 13.39
Worm Gear Reducer Dimensions
B B2 BA BB BD BE BF BR BU CA CE DY E EA F G H K O R RB RH S SB SH U UH UT V VA VB VN WG UB UR Y YE YF Input Key Length Square Output Key Length Square Weight (lbs)
030
040
050
063
075
090
110
130
150
2.20 5.83 0º 0.16 3.15 0.24 .26, 4 pl. 2.95
2.80 7.24 45º 0.16 4.33 0.28 .35, 4 pl. 3.43
3.35 7.83 45º 0.20 4.92 0.35 .43, 4 pl. 3.94
4.06 9.41 45º 0.24 7.09 0.39 .43, 4 pl. 4.33
4.41 10.51 45º 0.24 7.87 0.51 .55, 4 pl. 5.51
5.12 12.13 45º 0.24 8.27 0.51 .55, 4 pl. 6.30
5.67 16.14 45º 0.24 11.02 0.59 .55, 8 pl. 7.87
6.10 14.17 45º 0.28 12.60 0.59 .63, 8 pl. 9.84
7.28 16.14 45º 0.28 12.60 0.59 .63, 8 pl. 9.84
M6 Tap M6 Tap M10 Tap M8 Tap M8 Tap M8 Tap M10 Tap M12 Tap M12 Tap 0.43 deep, 4 pl. 0.32 deep, 4 pl. 0.39 deep, 4 pl. 0.55 deep, 8 pl. 0.55 deep, 8 pl. 0.71 deep, 8 pl. 0.71 deep, 8 pl. 0.83 deep, 8 pl. 0.83 deep, 8 pl. 45O 2.76 2.24 2.13 2.64 1.73 0.22 0.26 1.26 3.82 0.70 0.42 0.71 0.188 0.094 0.188 0.625 +0-.0005 0.625 +.001 -0 1/4-20 1.58 1.67 0.827 1.18 1.14 0.375 +0-.0005 1.18 1.06 1.73
45O 3.74 2.81 2.76 3.15 2.36 0.26 0.26 1.69 4.78 0.83 0.55 0.84 0.188 0.125 0.188 +0 0.750 -.0005 0.750 +.001 -0 1/4-20 1.97 2.09 1.024 1.18 1.44 +0 0.500 -.0005 1/4-20 1.58 1.38 2.17
45O 4.33 3.31 3.15 3.54 2.76 0.28 0.34 1.93 5.67 1.11 0.70 1.12 0.250 0.188 0.250 +0 1.000 -.0005 1.000 +.001 -0 3/8-16 1.97 2.11 1.181 1.58 1.71 +0 0.625 -.0005 1/4-20 1.97 1.58 2.52
45O 5.60 4.02 3.94 4.13 3.35 0.32 0.33 2.64 6.85 1.23 0.83 1.24 0.250 0.188 0.250 +0 1.125 -.0005 1.125 +.001 -0 3/8-16 2.36 2.50 1.417 1.97 2.09 +0 0.750 -.0005 1/4-20 2.48 1.97 3.15
45O 6.69 4.69 4.72 4.96 3.54 0.39 0.45 2.83 8.07 1.36 0.96 1.37 0.250 0.188 0.250 +0 1.250 -.0005 1.250 +.001 -0 1/2-13 2.76 2.89 1.575 2.36 2.24 +0 0.875 -.0005 1/4-20 2.95 2.36 3.66
45O 7.87 5.32 5.51 5.63 3.94 0.43 0.51 2.91 9.37 1.51 0.96 1.52 0.313 0.188 0.313 +0 1.375 -.0005 1.375 +.001 -0 1/2-13 3.15 3.33 1.772 2.36 2.64 +0 0.875 -.0005 1/4-20 3.54 2.76 4.02
45O 10.24 6.59 6.69 6.81 4.53 0.57 0.55 11.61 1.79 1.24 1.80 0.375 0.250 0.375 +0 1.625 -.001 1.625 +.001 -0 5/8-11 3.54 4.13 1.969 2.76 2.91 +0 1.125 -.0005 3/8-16 4.33 3.35 4.92
22.5O 11.42 7.38 7.87 7.60 4.72 0.61 0.63 13.19 1.92 1.36 1.93 0.375 0.250 0.375 +0 1.750 -.001 1.750 +.001 -0 5/8-11 3.54 3.74 2.362 3.15 3.19 +0 1.250 -.0005 1/2-13 5.12 3.94 5.51
22.5O 11.42 9.06 9.45 8.27 5.71 0.71 0.71 15.75 2.50 1.38 2.20 0.500 0.313 0.710 +0 2.000 -.001 2.000 +.001 -0 3/4-10 4.02 4.57 2.850 3.15 3.78 +0 1.375 -.0005 1/2-13 5.91 4.72 7.09
0.875 0.094
0.875 0.125
1.125 0.188
1.500 0.188
1.875 0.188
1.875 0.188
2.250 0.250
2.500 0.250
2.875 0.315
1.125 0.188 3
1.500 0.188 5
1.500 0.250 8
1.875 0.250 14
2.250 0.250 20
2.500 0.313 29
2.750 0.375 77
2.750 0.375 106
3.563 0.500 185
Worm Gear Reducers Accessories High Speed Extension Shaft
Baseplates DB DA T A C
B
EA
S2
R2
U
030
1.772
0.093
0.42
040
2.087
0.125
Key Length Square
UR
VN
0.375 +0-.0005
-
1.181
0.875
0.094
0.55
0.500 +0-.0005
1/4-20
1.181
0.875
0.125
+0 -.0005
Size
050
2.520
0.188
0.70
0.625
1/4-20
1.575
1.125
0.188
030
040-A
040-B
050
063-A
063-B
075
090
063
2.953
0.188
0.83
0.750 +0-.0005
1/4-20
1.969
1.500
0.188
A
4.38
4.38
5.75
6.38
7.06
8.00
8.44
9.50
075
3.543
0.188
0.96
0.875 +0-.0005
1/4-20
2.362
1.875
0.188
B
3.31
3.31
4.50
4.69
4.88
5.25
5.88
6.13
090
4.252
0.188
0.96
0.875 +0-.0005
1/4-20
2.362
1.875
0.188
C
0.34
0.34
0.41
0.50
0.50
0.50
0.50
0.50
1.24
1.125
+0 -.0005
3/8-16
2.756
2.250
0.250
DA
2.25
2.65
2.75
3.00
3.50
3.68
4.00
4.63
1.250
+0 -.0005
1/2-13
3.150
2.500
0.250
DB
3.43
4.22
4.32
4.97
5.97
6.16
6.95
8.17
1.375
+0 -.0005
0.313
T
0.68
0.68
0.78
0.64
0.66
0.85
0.61
0.57
110 130 150
5.315 6.102 8.270
0.250 0.250 0.315
1.36 1.51
Protective Cover
1/2-13
3.150
2.875
Torque Arm
I
IL IR IA
I
IA
IL
IR
IW
040
1.97
030
3.35
0.94
0.31
0.59
0.55
050
2.28
040
3.94
1.24
0.39
0.71
0.55
063
2.72
050
3.94
1.52
0.39
0.71
0.55
075
2.91
063
5.91
1.93
0.39
0.71
0.55
090
3.39
075
7.87
1.87
0.79
1.18
0.98
110
3.70
090
7.87
2.26
0.79
1.18
0.98
130
4.02
110
9.84
2.44
0.98
1.38
1.18
150
4.45
130
9.84
2.72
0.98
1.38
1.18
150
9.84
3.31
0.98
1.38
1.18
Q
IW
Worm Gear Reducer Mounting and Availability Mounting Positions B3
B6
B8
V5*
V6*
B7 *PLEASE NOTE: Mounting the reducer in V5 or V6 position requires added bearing maintenance. Please contact a Motovario Technical Service Representative for assistance with these mounting positions.
NMRV 030 NMRV 040 NMRV 050 NMRV 063 NMRV 075
NMRV 090
NMRV 110
NMRV 130
NMRV 150
NEMA Flange
Input Bore Diameter
48C
0.500
56C
0.625
56C
0.625
56C
0.625
140TC
0.875
56C
0.625
140TC
0.875
180TC
1.125
56C
6.250
140TC
0.875
180TC
1.125
140TC
0.875
180TC
1.125
210TC
1.375
140TC
0.875
180TC
1.125
210TC
1.375
180TC
1.125
210TC
1.375
250TC
1.625
Available Ratios 5
7.5
10
15
20
25
30
40
50
60
80
100
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Motovario first began manufacturing power transmission
Our manufacturing and heat treating plants in Spezzano, Italy
components in 1965. The earliest products were mechanical
and distribution centers in major marketing hubs in Great
variable speed drives for ceramic tile manufacturing
Britain, France, Germany, Denmark, Sweden and the United
machinery. Over the years Motovario has developed a vast
States offer a worldwide network for better customer service.
range of products and has won acclaim in all areas of the
Our Alpharetta, Georgia facility began operation in 1998 and
industry. Motovario is now a global leader in the manufacture
is fully staffed with sales, marketing and assembly personnel
and sale of constant speed drives. Continuous research has
and distribution facilities. Motovario has high speed, quality
also led to the development of a complete range of other
machinery that can completely assemble in-line helical and
power transmission products.
helical-bevel gear reducers in minutes for fast turn around of customer orders.
Motovario manufactures a complete line of IEC and NEMA type motors, worm, in-line helical and helical-bevel gear
Motovario Corporation is dedicated to producing and
reducers and gearmotors. Motovario’s innovative cast
distributing the industry’s finest gear reducers,
aluminum alloy gear reducer housings have revolutionized
gearmotors, mechanical variable speed drives, and
the power transmission industry. By dissipating heat
related products and to providing the best and
generated by worm gear reducers, the aluminum alloy
fastest customer service in the power
housing has aided in eliminating oil leaks. The housing also
transmission industry.
allows for universal mounting of Motovario gear reducers. The innovative Motovario design is an industry leader and
For more information about Motovario
has led many of our competitors to add aluminum alloy
products, contact Motovario for a copy
housed gearbox designs to their product lines.
of our new Constant Speed Drives Catalog.
Catalog 9902
818 Curie Drive Alpharetta, GA 30005 (888) 686-0911 FAX (770) 752-5562
[email protected]
www.motovario.com
© Motovario Corporation, 1999 F9902
