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Power: 0.16 hp - 5 HP
Output Speed: 0.3 - 426 rpm
Output Torque: 94.2 - 33931 lb-in
UNICASE Helical Worm Gear Units are angular gear units available in multiple stages where the motor shaft and the output shaft form a 90° angle. This allows for flexible mounting options where installation space is limited. The helical gears of UNICASE worm gear units are made of high alloy steel with case-hardened teeth. Optimized geometries and precise shaft alignment provide excellent load-bearing capacity, long operating life, and quiet operation.
The worm stage has a hardened cylinder worm as well as a worm gear with a special bronze rim welded to it. This combination ensures ultimate reliability.
Gear Box Models
SK 02040.1 | SK 02050 | SK 12063 | SK 12080 | SK 32100 | SK 42125 |SK 13050 |
SK 13063 | SK 13080 | SK 33100 | SK 43125 |
Catalog | Nord Helical Worm Catalog |
Users Manual | Nord Helical Worm Manual |
Dimensions | Nord Helical Worm Dimensions |
Order Form | Nord Helical Worm Order Form |
UNICASE worm gear units are factory lubricated for life with high-quality, synthetic lubricant. This lubricant prevents friction, provides a high degree of efficiency, and further increases the life of these gear units.
NORD's 2-stage SK 02040 UNICASE worm gear units have been redesigned as SK 02040.1 gear units. Made from high-strength aluminum or die-cast aluminum, these units guarantee maximum strength and rigidity in a lightweight, compact unit. Their universal mounting design offers significant customer advantages, including fast installation.
Gearbox Selection
Below are some guideline steps to help aid in
the gear unit selection.
1. Determine the speed and/or gear ratio (see order form)
2. Determine the required power or torque (see order form)
3. Determine Service Factor
4. Select the basic gearbox type and input
5. Determine the required mounting position
6. Select options
7. Checks – overhung load, thrust load, NEMA motor weight, thermal considerations, and other application considerations
Mounting Positions
Samples
X | Foot-mounted housing |
F | B5 flange |
Z | B14 flange |
V | Solid shaft |
L | Double solid shaft |
A | Hollow shaft |
B | Fastening element |
EA | Hollow shaft with internal spline |
S | Shrink disc |
M | GRIPMAXX |
H | Hollow shaft cover |
SH | Shrink disc cover |
VL | Reinforced output bearings |
D | Torque arm |
SCP | Screw conveyor package (SCP) |
VI | Fluoro-rubber seals (FKM) |
2WD | Double-output shaft seals |
OV | Open vent |
DR | Spring-loaded breather / AUTOVENTTM |
OSG | Oil sight glass |
OC | Oil cooler |
OA | Oil expansion chamber |
W | Solid input shaft |
IEC/NEMA | IEC and NEMA motor adapter |
Available Gearbox unit for SK 02040.1 |
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Gearbox Unit | HP | Output Speed | Output Torque | Weight |
Nord SK 02040.1 - 63 SP/4 | 0.16 hp | 5.1 - 61 rpm | 136 - 902 lb-in | 17 lb |
Nord SK 02040.1 - 63 LP/4 | 0.25 hp | 7.8 - 95 rpm | 121 - 958 lb-in | 19 lb |
Nord SK 02040.1 - 71 SP/4 | 0.33 hp | 10 - 161 rpm | 105 - 979 lb-in | 22 lb |
Nord SK 02040.1 - 71 LP/4 | 0.50 hp | 21 - 289 rpm | 94.2 - 999 lb-in | 25 lb |
Nord SK 02040.1 - 80 SP/4 | 0.75 hp | 48 - 323 rpm | 127 - 767 lb-in | 30 lb |
Nord SK 02040.1 - 80 LP/4 | 1.00 hp | 58 - 322 rpm | 170 - 774 lb-in | 31 lb |
Nord SK 02040.1 - 90 SP/4 | 1.50 hp | 97 - 324 rpm | 253 - 714 lb-in | 42 lb |
Available Gearbox unit for SK 02050 |
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Nord SK 02050 - 63 SP/4 | 0.16 hp | 3.2 - 18 rpm | 322 - 1537 lb-in | 43.7 lb |
Nord SK 02050 - 63 LP/4 | 0.25 hp | 3.9 - 42 rpm | 283 - 2026 lb-in | 45.6 lb |
Nord SK 02050 - 71 SP/4 | 0.33 hp | 7.5 - 56 rpm | 306 - 1891 lb-in | 48.7 lb |
Nord SK 02050 - 71 LP/4 | 0.5 hp | 12 - 117 rpm | 228 - 1493 lb-in | 51.1 lb |
Nord SK 02050 - 80 SP/4 | 0.75 hp | 15 - 212 rpm | 197 - 1782 lb-in | 56.7 lb |
Nord SK 02050 - 80 LP/4 | 1.00 hp | 21 - 314 rpm | 180 - 1751 lb-in | 57.8 lb |
Nord SK 02050 - 90 SP/4 | 1.50 hp | 43 - 426 rpm | 199 - 1666 lb-in | 68.6 lb |
Nord SK 02050 - 90 LP/4 | 2.00 hp | 64 - 423 rpm | 266 - 1632 lb-in | 72.1 lb |
Nord SK 02050 - 100 LP/4 | 3.00 hp | 152 - 433 rpm | 390 - 1090 lb-in | 97 lb |
Available Gearbox unit for SK 12063 |
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Nord SK 12063 - 63 SP/4 | 0.16 hp | 2.7 - 9.2 rpm | 608 - 1817 lb-in | 52.5 lb |
Nord SK 12063 - 63 LP/4 | 0.25 hp | 2.7 - 18 rpm | 523 - 2823 lb-in | 54.5 lb |
Nord SK 12063 - 71 SP/4 | 0.33 hp | 2.8 - 28 rpm | 548 - 3686 lb-in | 57.5 lb |
Nord SK 12063 - 71 LP/4 | 0.50 hp | 4.2 - 60 rpm | 435 - 3819 lb-in | 60 lb |
Nord SK 12063 - 80 SP/4 | 0.75 hp | 8.9 - 111 rpm | 374 - 3657 lb-in | 65.5 lb |
Nord SK 12063 - 80 LP/4 | 1.00 hp | 11 - 174 rpm | 324 - 3356 lb-in | 66.6 lb |
Nord SK 12063 - 90 SP/4 | 1.50 hp | 19 - 235 rpm | 362 - 3083 lb-in | 77.4 lb |
Nord SK 12063 - 90 LP/4 | 2.00 hp | 35 - 234 rpm | 486 - 2752 lb-in | 80.9 lb |
Nord SK 12063 - 100 LP/4 | 3.00 hp | 62 - 239 rpm | 713 - 2546 lb-in | 105.8 lb |
Available Gearbox unit for SK 12080 |
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Nord SK 12080 - 63 SP/4 | 0.16 hp | 2.6 rpm | 1940 lb-in | 74.5 lb |
Nord SK 12080 - 63 LP/4 | 0.25 hp | 2.6 - 6.2 rpm | 1764 - 3015 lb-in | 76.5 lb |
Nord SK 12080 - 71 SP/4 | 0.33 hp | 2.6 - 9.2 rpm | 1326 - 3938 lb-in | 79.6 lb |
Nord SK 12080 - 71 LP/4 | 0.50 hp | 2.6 - 18 rpm | 1124 - 5967 lb-in | 82 lb |
Nord SK 12080 - 80 SP/4 | 0.75 hp | 3.3 - 33 rpm | 1118 - 7229 lb-in | 87.5 lb |
Nord SK 12080 - 80 LP/4 | 1.00 hp | 4.3 - 54 rpm | 990 - 7718 lb-in | 88.6 lb |
Nord SK 12080 - 90 SP/4 | 1.50 hp | 7.4 - 139 rpm | 614 - 7246 lb-in | 99.4 lb |
Nord SK 12080 - 90 LP/4 | 2.00 hp | 11 - 181 rpm | 632 - 6944 lb-in | 103 lb |
Nord SK 12080 - 100 LP/4 | 3.00 hp | 22 - 234 rpm | 738 - 6416 lb-in | 127.9 lb |
Nord SK 12080 - 100 AP/4 | 4.00 hp | 30 - 234 rpm | 986 - 6500 lb-in | 127.9 lb |
Nord SK 12080 - 112 MP/4 | 5.00 hp | 46 - 232 rpm | 1240 - 5741 lb-in | 144.4 lb |
Available Gearbox unit for SK 32100 |
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Nord SK 32100 - 71 SP/4 | 0.33 hp | 2.7 rpm | 4052 lb-in | 136.9 lb |
Nord SK 32100 - 71 LP/4 | 0.5 hp | 2.7 - 7.1 rpm | 2663 - 6140 lb-in | 139.3 lb |
Nord SK 32100 - 80 SP/4 | 0.75 hp | 2.7 - 13 rpm | 2349 - 9163 lb-in | 144.8 lb |
Nord SK 32100 - 80 LP/4 | 1.00 hp | 2.7 - 18 rpm | 2664 - 12248 lb-in | 145.9 lb |
Nord SK 32100 - 90 SP/4 | 1.50 hp | 3.4 - 41 rpm | 1993 - 14900 lb-in | 156.7 lb |
Nord SK 32100 - 90 LP/4 | 2.00 hp | 5.7 - 58 rpm | 1913 - 12863 lb-in | 160.3 lb |
Nord SK 32100 - 100 LP/4 | 3.00 hp | 7.3 - 133 rpm | 1301 - 15640 lb-in | 185.2 lb |
Nord SK 32100 - 100 AP/4 | 4.00 hp | 14 - 164 rpm | 1410 - 12348 lb-in | 185.2 lb |
Nord SK 32100 - 112 MP/4 | 5.00 hp | 17 - 193 rpm | 1506 - 12897 lb-in | 201.7 lb |
Nord SK 32100 - 132 SP/4 | 7.50 hp | 35 - 246 rpm | 1783 - 10992 lb-in | 244.7 lb |
Nord SK 32100 - 132 MP/4 | 10.00 hp | 46 - 245 rpm | 2384 - 11891 lb-in | 260.1 lb |
Available Gearbox unit for SK 42125 |
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Nord SK 42125 - 90 SP/4 | 1.50 hp | 2.5 - 17 rpm | 4049 - 20819 lb-in | 244.9 lb |
Nord SK 42125 - 90 LP/4 | 2.00 hp | 2.5 - 25 rpm | 4174 - 27898 lb-in | 248.5 lb |
Nord SK 42125 - 100 LP/4 | 3.00 hp | 3.6 - 50 rpm | 3347 - 30678 lb-in | 273.4 lb |
Nord SK 42125 - 100 AP/4 | 4.00 hp | 5.2 - 80 rpm | 2853 - 29704 lb-in | 273.4 lb |
Nord SK 42125 - 112 MP/4 | 5.00 hp | 7.1 - 110 rpm | 2635 - 28858 lb-in | 289.9 lb |
Nord SK 42125 - 132 SP/4 | 7.50 hp | 15 - 242 rpm | 1830 - 22869 lb-in | 332.9 lb |
Nord SK 42125 - 132 MP/4 | 10.00 hp | 20 - 242 rpm | 2447 - 25368 lb-in | 348.3 lb |
Nord SK 42125 - 160 MP/4 | 15.00 hp | 43 - 242 rpm | 3661 - 18798 lb-in | 416.7 lb |
Nord SK 42125 - 160 LP/4 | 20.00 hp | 56 - 243 rpm | 4868 - 20134 lb-in | 480.6 lb |
Available Gearbox unit for SK 13050 |
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Nord SK 13050 - 63 SP/4 | 0.16 hp | 0.6 - 41 rpm | 210 - 2157 lb-in | 54.7 lb |
Nord SK 13050 - 63 LP/4 | 0.25 hp | 4.1 - 41 rpm | 327 - 1909 lb-in | 56.7 lb |
Nord SK 13050 - 71 SP/4 | 0.33 hp | 8.3 - 41 rpm | 427 - 1716 lb-in | 59.7 lb |
Nord SK 13050 - 71 LP/4 | 0.50 hp | 12 - 41 rpm | 646 - 1981 lb-in | 62.2 lb |
Nord SK 13050 - 80 SP/4 | 0.75 hp | 20 - 41 rpm | 964 - 1860 lb-in | 67.7 lb |
Available Gearbox unit for SK 13063 |
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Nord SK 13063 - 63 SP/4 | 0.16 hp | 0.5 - 26 rpm | 327 - 4204 lb-in | 63.5 lb |
Nord SK 13063 - 63 LP/4 | 0.25 hp | 1.8 - 26 rpm | 508 - 4119 lb-in | 65.5 lb |
Nord SK 13063 - 71 SP/4 | 0.33 hp | 2.9 - 26 rpm | 662 - 3565 lb-in | 68.6 lb |
Nord SK 13063 - 71 LP/4 | 0.50 hp | 5.5 - 26 rpm | 1004 - 3807 lb-in | 71 lb |
Nord SK 13063 - 80 SP/4 | 0.75 hp | 8.7 - 27 rpm | 1497 - 3705 lb-in | 76.5 lb |
Available Gearbox unit for SK 13080 |
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Nord SK 13080 - 63 SP/4 | 0.16 hp | 0.5 - 17 rpm | 465 - 8519 lb-in | 85.5 lb |
Nord SK 13080 - 63 LP/4 | 0.25 hp | 1.4 - 17 rpm | 723 - 5250 lb-in | 87.5 lb |
Nord SK 13080 - 71 SP/4 | 0.33 hp | 1.4 - 18 rpm | 943 - 6855 lb-in | 90.6 lb |
Nord SK 13080 - 71 LP/4 | 0.50 hp | 1.8 - 18 rpm | 1429 - 8409 lb-in | 93 lb |
Available Gearbox unit for SK 33100 |
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Nord SK 33100 - 63 SP/4 | 0.16 hp | 0.3 - 1.4 rpm | 3421 - 15938 lb-in | 149.5 lb |
Nord SK 33100 - 63 LP/4 | 0.25 hp | 0.5 - 2.6 rpm | 3165 - 15918 lb-in | 151.5 lb |
Nord SK 33100 - 71 SP/4 | 0.33 hp | 0.8 - 3.7 rpm | 3070 - 12504 lb-in | 154.5 lb |
Nord SK 33100 - 71 LP/4 | 0.50 hp | 1.0 - 6.7 rpm | 3358 - 14594 lb-in | 157 lb |
Nord SK 33100 - 80 SP/4 | 0.75 hp | 1.5 - 32 rpm | 1271 - 15695 lb-in | 162.5 lb |
Nord SK 33100 - 80 LP/4 | 1.00 hp | 2.6 - 32 rpm | 1699 - 12499 lb-in | 163.6 lb |
Nord SK 33100 - 90 SP/4 | 1.50 hp | 3.3 - 32 rpm | 2534 - 15138 lb-in | 174.4 lb |
Nord SK 33100 - 90 LP/4 | 2.00 hp | 4.7 - 32 rpm | 3398 - 15010 lb-in | 177.9 lb |
Available Gearbox unit for SK 43125 |
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Nord SK 43125 - 71 SP/4 | 0.33 hp | 0.3 - 1.4 rpm | 7483 - 29139 lb-in | 262.6 lb |
Nord SK 43125 - 71 LP/4 | 0.50 hp | 0.5 - 1.4 rpm | 11338 - 30457 lb-in | 265 lb |
Nord SK 43125 - 80 SP/4 | 0.75 hp | 0.7 - 6.4 rpm | 5382 - 33830 lb-in | 270.5 lb |
Nord SK 43125 - 80 LP/4 | 1.00 hp | 0.9 - 9.2 rpm | 5160 - 33931 lb-in | 271.6 lb |
Nord SK 43125 - 90 SP/4 | 1.50 hp | 1.5 - 28 rpm | 2924 - 33749 lb-in | 282.4 lb |
Nord SK 43125 - 90 LP/4 | 2.00 hp | 2.2 - 28 rpm | 3920 - 31313 lb-in | 285.9 lb |
Nord SK 43125 - 100 LP/4 | 3.00 hp | 6.6 - 28 rpm | 5755 - 21139 lb-in | 310.9 lb |
Nord SK 43125 - 100 AP/4 | 4.00 hp | 6.5 - 28 rpm | 7694 - 28258 lb-in | 310.9 lb |
Nord SK 43125 - 112 MP/4 | 5.00 hp | 9.4 - 28 rpm | 9669 - 25465 lb-in | 327.4 lb |