Nord Unicase Helical Worm Gear

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 & MANUALS

 
Catalog Nord Helical Worm Catalog
Users Manual Nord Helical Worm Manual
Dimensions Nord Helical Worm Dimensions
Order Form Nord Helical Worm Order Form

Features

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

Gearbox Options

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
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
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
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
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
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
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
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
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
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
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
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