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For Shaft Misalignment Type
Chain and Belt Torque Limiters
 |  |  |
Torque Limiter Shown with Sprocket | Replacement Friction Lining |
Prevent damage from overloading. When overloaded, these limiters cause your sprocket or pulley to slip. Once the overload is removed, the limiters automatically reset. Set the torque within the range listed. Friction lining is between the hub and pressure plate.
Double Spring—Double-spring limiters have a second spring for handling nearly twice the torque of single-spring limiters.
Sprockets—Sprockets are designed specifically to fit their corresponding limiters. These hubless sprockets are not interchangeable.
Torque Limiters | Sprockets | Replacement Friction Lining | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Keyway | Torque, ft·lbf | |||||||||||||||||
For Shaft Dia. | OD | Overall Wd. | Wd. | Dp. | For Max. Sprocket or Pulley Wd. | Friction Lining Thk. | Min. | Max. | Hub Material | Each | Choose a Roller Chain Trade Number | Each | Each | |||||
Single Spring | ||||||||||||||||||
| 1/4" | 1 5/16" | 1 3/8" | 1/16" | 1/32" | 11/32" | 1/8" | 1 | 6 | Steel | 6524K171 | 000000 | 25, 35, 40, 41, 50 | 6525K27 | 000000 | 6525K68 | 000000 | ||
| 5/16" | 1 5/16" | 1 3/8" | 3/32" | 3/64" | 11/32" | 1/8" | 1 | 6 | Steel | 6524K172 | 00000 | 25, 35, 40, 41, 50 | 6525K27 | 00000 | 6525K68 | 00000 | ||
| 3/8" | 1 5/16" | 1 3/8" | 3/32" | 3/64" | 11/32" | 1/8" | 1 | 6 | Steel | 6524K173 | 00000 | 25, 35, 40, 41, 50 | 6525K27 | 00000 | 6525K68 | 00000 | ||
| 3/8" | 2 1/4" | 2" | 3/32" | 3/64" | 1/2" | 1/8" | 5 | 35 | Steel | 6524K111 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 1/2" | 2 1/4" | 2" | 1/8" | 1/16" | 1/2" | 1/8" | 5 | 35 | Steel | 6524K18 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 1/2" | 2 1/2" | 1 3/4" | 1/8" | 1/16" | 11/32" | 1/8" | 25 | 60 | Steel | 6524K121 | 00000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 1/2" | 3 3/8" | 2 1/8" | 1/8" | 1/16" | 1/2" | 1/8" | 11 | 100 | Steel | 6524K131 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 5/8" | 2 1/4" | 2" | 3/16" | 3/32" | 1/2" | 1/8" | 5 | 35 | Steel | 6524K19 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 5/8" | 2 1/2" | 1 3/4" | 3/16" | 3/32" | 11/32" | 1/8" | 25 | 60 | Steel | 6524K122 | 00000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 5/8" | 3 3/8" | 2 1/8" | 3/16" | 3/32" | 1/2" | 1/8" | 11 | 100 | Steel | 6524K27 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 3/4" | 2 1/4" | 2" | 3/16" | 3/32" | 1/2" | 1/8" | 5 | 35 | Steel | 6524K21 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 3/4" | 2 1/2" | 1 3/4" | 3/16" | 3/32" | 11/32" | 1/8" | 25 | 60 | Steel | 6524K123 | 00000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 3/4" | 3 3/8" | 2 1/8" | 3/16" | 3/32" | 1/2" | 1/8" | 11 | 100 | Steel | 6524K28 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 3/4" | 3 1/2" | 2 3/16" | 3/16" | 3/32" | 1/2" | 1/8" | 50 | 120 | Steel | 6524K141 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 3/4" | 4 1/2" | 2 7/8" | 3/16" | 3/32" | 7/8" | 1/8" | 18 | 190 | Steel | 6524K321 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 7/8" | 2 1/2" | 1 3/4" | 3/16" | 3/32" | 11/32" | 1/8" | 25 | 60 | Steel | 6524K124 | 00000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 7/8" | 3 3/8" | 2 1/8" | 3/16" | 3/32" | 1/2" | 1/8" | 11 | 100 | Steel | 6524K29 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 7/8" | 3 1/2" | 2 3/16" | 3/16" | 3/32" | 1/2" | 1/8" | 50 | 120 | Steel | 6524K142 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 1" | 2 1/2" | 1 3/4" | 1/4" | 1/8" | 11/32" | 1/8" | 25 | 60 | Steel | 6524K501 | 00000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 1" | 3 3/8" | 2 1/8" | 1/4" | 1/8" | 1/2" | 1/8" | 11 | 100 | Steel | 6524K31 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 1" | 3 1/2" | 2 3/16" | 1/4" | 1/8" | 1/2" | 1/8" | 50 | 120 | Steel | 6524K143 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 1" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 7/8" | 1/8" | 18 | 190 | Steel | 6524K322 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K151 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1" | 6" | 3" | 1/4" | 1/8" | 13/16" | 1/8" | 24 | 320 | Steel | 6524K125 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 1/8" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 7/8" | 1/8" | 18 | 190 | Steel | 6524K323 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1 1/8" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K152 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 3/16" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K153 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 1/4" | 3 1/2" | 2 3/16" | 1/4" | 1/8" | 1/2" | 1/8" | 50 | 120 | Steel | 6524K503 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 1 1/4" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 7/8" | 1/8" | 18 | 190 | Steel | 6524K324 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1 1/4" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K154 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 1/4" | 6" | 3" | 1/4" | 1/8" | 13/16" | 1/8" | 24 | 320 | Steel | 6524K126 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 3/8" | 4 1/2" | 2 7/8" | 5/16" | 5/32" | 7/8" | 1/8" | 18 | 190 | Steel | 6524K325 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1 3/8" | 5" | 2 7/8" | 5/16" | 5/32" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K155 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 3/8" | 6" | 3" | 5/16" | 5/32" | 13/16" | 1/8" | 24 | 320 | Steel | 6524K127 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 7/16" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K156 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 7/16" | 6" | 3" | 3/8" | 3/16" | 13/16" | 1/8" | 24 | 320 | Steel | 6524K138 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 1/2" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K157 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 1/2" | 6" | 3" | 3/8" | 3/16" | 13/16" | 1/8" | 24 | 320 | Steel | 6524K128 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 5/8" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K158 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 5/8" | 6" | 3" | 3/8" | 3/16" | 13/16" | 1/8" | 24 | 320 | Steel | 6524K129 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
Double Spring | ||||||||||||||||||
| 1/4" | 1 5/16" | 1 3/8" | 1/16" | 1/32" | 5/16" | 1/8" | 2 | 12 | Steel | 6524K331 | 000000 | 25, 35, 40, 41, 50 | 6525K27 | 00000 | 6525K68 | 00000 | ||
| 5/16" | 1 5/16" | 1 3/8" | 3/32" | 3/64" | 5/16" | 1/8" | 2 | 12 | Steel | 6524K332 | 000000 | 25, 35, 40, 41, 50 | 6525K27 | 00000 | 6525K68 | 00000 | ||
| 3/8" | 1 5/16" | 1 3/8" | 3/32" | 3/64" | 5/16" | 1/8" | 2 | 12 | Steel | 6524K333 | 000000 | 25, 35, 40, 41, 50 | 6525K27 | 00000 | 6525K68 | 00000 | ||
| 3/8" | 2 1/4" | 2" | 3/32" | 3/64" | 15/32" | 1/8" | 7 | 50 | Steel | 6524K411 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 1/2" | 2 1/4" | 2" | 1/8" | 1/16" | 15/32" | 1/8" | 7 | 50 | Steel | 6524K23 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 1/2" | 2 1/2" | 1 3/4" | 1/8" | 1/16" | 11/32" | 1/8" | 30 | 95 | Steel | 6524K421 | 000000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 1/2" | 3 3/8" | 2 1/8" | 1/8" | 1/16" | 7/16" | 1/8" | 13 | 175 | Steel | 6524K431 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 5/8" | 2 1/4" | 2" | 3/16" | 3/32" | 15/32" | 1/8" | 7 | 50 | Steel | 6524K24 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 5/8" | 2 1/2" | 1 3/4" | 3/16" | 3/32" | 11/32" | 1/8" | 30 | 95 | Steel | 6524K422 | 000000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 5/8" | 3 3/8" | 2 1/8" | 3/16" | 3/32" | 7/16" | 1/8" | 13 | 175 | Steel | 6524K432 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 3/4" | 2 1/4" | 2" | 3/16" | 3/32" | 15/32" | 1/8" | 7 | 50 | Steel | 6524K25 | 000000 | 35, 40, 41, 50 | 6525K11 | 00000 | 6525K62 | 00000 | ||
| 3/4" | 2 1/2" | 1 3/4" | 3/16" | 3/32" | 11/32" | 1/8" | 30 | 95 | Steel | 6524K423 | 000000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 3/4" | 3 3/8" | 2 1/8" | 3/16" | 3/32" | 7/16" | 1/8" | 13 | 175 | Steel | 6524K34 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 3/4" | 3 1/2" | 2 3/16" | 3/16" | 3/32" | 1/2" | 1/8" | 60 | 190 | Steel | 6524K441 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 3/4" | 4 1/2" | 2 7/8" | 3/16" | 3/32" | 13/16" | 1/8" | 20 | 285 | Steel | 6524K381 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 7/8" | 2 1/2" | 1 3/4" | 3/16" | 3/32" | 11/32" | 1/8" | 30 | 95 | Steel | 6524K424 | 000000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 7/8" | 3 3/8" | 2 1/8" | 3/16" | 3/32" | 7/16" | 1/8" | 13 | 175 | Steel | 6524K434 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 7/8" | 3 1/2" | 2 3/16" | 3/16" | 3/32" | 1/2" | 1/8" | 60 | 190 | Steel | 6524K442 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 1" | 2 1/2" | 1 3/4" | 1/4" | 1/8" | 11/32" | 1/8" | 30 | 95 | Steel | 6524K502 | 000000 | 35, 40, 41, 50 | 6525K12 | 00000 | 6525K64 | 0000 | ||
| 1" | 3 3/8" | 2 1/8" | 1/4" | 1/8" | 7/16" | 1/8" | 13 | 175 | Steel | 6524K36 | 000000 | 35, 40, 41, 50 | 6525K13 | 00000 | 6525K63 | 00000 | ||
| 1" | 3 1/2" | 2 3/16" | 1/4" | 1/8" | 1/2" | 1/8" | 60 | 190 | Steel | 6524K443 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 1" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 13/16" | 1/8" | 20 | 285 | Steel | 6524K382 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K451 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1" | 6" | 3" | 1/4" | 1/8" | 3/4" | 1/8" | 26 | 440 | Steel | 6524K132 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 1/8" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 13/16" | 1/8" | 20 | 285 | Steel | 6524K383 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1 1/8" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K452 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 3/16" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K453 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 1/4" | 3 1/2" | 2 3/16" | 1/4" | 1/8" | 1/2" | 1/8" | 60 | 190 | Steel | 6524K504 | 000000 | 35, 40, 41, 50, 60 | 6525K14 | 00000 | 6525K65 | 00000 | ||
| 1 1/4" | 4 1/2" | 2 7/8" | 1/4" | 1/8" | 13/16" | 1/8" | 20 | 285 | Steel | 6524K384 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1 1/4" | 5" | 2 7/8" | 1/4" | 1/8" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K454 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 1/4" | 6" | 3" | 1/4" | 1/8" | 3/4" | 1/8" | 26 | 440 | Steel | 6524K133 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 3/8" | 4 1/2" | 2 7/8" | 5/16" | 5/32" | 13/16" | 1/8" | 20 | 285 | Steel | 6524K385 | 000000 | 35, 40, 41, 50, 60, 80, 100 | 6525K32 | 00000 | 6525K72 | 00000 | ||
| 1 3/8" | 5" | 2 7/8" | 5/16" | 5/32" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K455 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 3/8" | 6" | 3" | 5/16" | 5/32" | 3/4" | 1/8" | 26 | 440 | Steel | 6524K134 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 7/16" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K456 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 7/16" | 6" | 3" | 3/8" | 3/16" | 3/4" | 1/8" | 26 | 440 | Steel | 6524K137 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 1/2" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K457 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 1/2" | 6" | 3" | 3/8" | 3/16" | 3/4" | 1/8" | 26 | 440 | Steel | 6524K135 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
| 1 5/8" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K458 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 5/8" | 6" | 3" | 3/8" | 3/16" | 3/4" | 1/8" | 26 | 440 | Steel | 6524K136 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
Friction Torque Limiters
Shaft-to-Shaft
 |
Shaft-to-shaft torque limiters also act as a shaft coupling, allowing you to regulate torque transmission between two shafts.
Keyway | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Torque, in·lbf | Max. Rotation Speed, rpm | OD | Overall Lg. | Wd. | Dp. | Drive Direction | Shaft Mount Type | Each | |||
For Round Shafts | ||||||||||||
| 1/4" | 1.6 to 16 | 50 | 1" | 1 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K11 | 0000000 | ||
| 3/8" | 1.6 to 16 | 50 | 1" | 1 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K13 | 000000 | ||
| 3/8" | 2.5 to 25 | 50 | 1 3/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K15 | 000000 | ||
| 1/2" | 2.5 to 25 | 50 | 1 3/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K17 | 000000 | ||
| 1/2" | 5 to 50 | 50 | 1 5/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K19 | 000000 | ||
| 1/2" | 7.5 to 75 | 50 | 2 1/4" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K23 | 000000 | ||
| 5/8" | 5 to 50 | 50 | 1 5/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K21 | 000000 | ||
| 5/8" | 7.5 to 75 | 50 | 2 1/4" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 9132K25 | 000000 | ||
For Keyed Shafts | ||||||||||||
| 1/4" | 1.6 to 16 | 50 | 1" | 1 1/2" | 1/16" | 1/32" | Clockwise and Counterclockwise | Set Screw | 9132K51 | 000000 | ||
| 3/8" | 2.5 to 25 | 50 | 1 3/8" | 2 1/2" | 3/32" | 3/64" | Clockwise and Counterclockwise | Set Screw | 9132K52 | 000000 | ||
| 1/2" | 5 to 50 | 50 | 1 5/8" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | Set Screw | 9132K54 | 000000 | ||
| 1/2" | 7.5 to 75 | 50 | 2 1/4" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | Set Screw | 9132K56 | 000000 | ||
Through Shaft
|
Through-shaft torque limiters regulate torque transmission between an input shaft and a mounted component, such as a pulley, sprocket, or gear.
Keyway | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Torque, in·lbf | Max. Rotation Speed, rpm | OD | Overall Lg. | Wd. | Dp. | Drive Direction | Shaft Mount Type | Mounting Hole Thread Size | Each | |||
For Round Shafts | |||||||||||||
| 1/4" | 1.6 to 16 | 50 | 1" | 1 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 4-40 | 9132K31 | 0000000 | ||
| 3/8" | 1.6 to 16 | 50 | 1" | 1 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 4-40 | 9132K32 | 000000 | ||
| 3/8" | 2.5 to 25 | 50 | 1 3/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 6-32 | 9132K33 | 000000 | ||
| 1/2" | 2.5 to 25 | 50 | 1 3/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 6-32 | 9132K34 | 000000 | ||
| 1/2" | 5 to 50 | 50 | 1 5/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 6-32 | 9132K35 | 000000 | ||
| 1/2" | 7.5 to 75 | 50 | 2 1/4" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 8-32 | 9132K37 | 000000 | ||
| 5/8" | 5 to 50 | 50 | 1 5/8" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 6-32 | 9132K36 | 000000 | ||
| 5/8" | 7.5 to 75 | 50 | 2 1/4" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 8-32 | 9132K38 | 000000 | ||
For Keyed Shafts | |||||||||||||
| 1/2" | 5 to 50 | 50 | 1 5/8" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | Set Screw | 6-32 | 9132K44 | 000000 | ||
| 1/2" | 7.5 to 75 | 50 | 2 1/4" | 2 1/2" | 1/8" | 1/16" | Clockwise and Counterclockwise | Set Screw | 8-32 | 9132K46 | 000000 | ||
Remote-Adjust Air-Powered Friction Torque Limiters
Shaft-to-Shaft
 |
Shaft-to-shaft torque limiters also act as a shaft coupling, allowing you to regulate torque transmission between two shafts.
Keyway | Air Inlet | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Torque, in·lbf | Max. Pressure, psi | Max. Rotation Speed | OD | Overall Lg. | Wd. | Dp. | Drive Direction | Shaft Mount Type | Thread Size | Thread Type | Gender | Each | |||
For Round Shafts | ||||||||||||||||
| 1/4" | 2 to 20 | 100 | Not Rated | 1 1/4" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 10-32 | UNF | Female | 9133K11 | 0000000 | ||
| 3/8" | 5 to 50 | 100 | Not Rated | 1 1/2" | 3 3/8" | — | — | Clockwise and Counterclockwise | Set Screw | 10-32 | UNF | Female | 9133K12 | 000000 | ||
| 1/2" | 10 to 100 | 100 | Not Rated | 2" | 3 5/8" | — | — | Clockwise and Counterclockwise | Set Screw | 10-32 | UNF | Female | 9133K15 | 000000 | ||
| 5/8" | 30 to 300 | 100 | Not Rated | 2 3/4" | 3 5/8" | — | — | Clockwise and Counterclockwise | Set Screw | 10-32 | UNF | Female | 9133K19 | 000000 | ||
For Keyed Shafts | ||||||||||||||||
| 1/2" | 10 to 100 | 100 | Not Rated | 2" | 3 5/8" | 1/8" | 1/16" | Clockwise and Counterclockwise | Set Screw | 10-32 | UNF | Female | 9133K53 | 000000 | ||
| 5/8" | 30 to 300 | 100 | Not Rated | 2 3/4" | 3 5/8" | 3/16" | 3/32" | Clockwise and Counterclockwise | Set Screw | 10-32 | UNF | Female | 9133K54 | 000000 | ||
Through Shaft
|
Through-shaft torque limiters regulate torque transmission between an input shaft and a mounted component, such as a pulley, sprocket, or gear.
Keyway | Air Inlet | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Torque, in·lbf | Max. Pressure, psi | Max. Rotation Speed | OD | Overall Lg. | Wd. | Dp. | Drive Direction | Shaft Mount Type | Mounting Hole Thread Size | Thread Size | Thread Type | Gender | Each | |||
For Round Shafts | |||||||||||||||||
| 1/4" | 2 to 20 | 100 | Not Rated | 1 1/4" | 2 1/2" | — | — | Clockwise and Counterclockwise | Set Screw | 4-40 | 10-32 | UNF | Female | 9133K31 | 0000000 | ||
| 3/8" | 5 to 50 | 100 | Not Rated | 1 1/2" | 3 3/8" | — | — | Clockwise and Counterclockwise | Set Screw | 6-32 | 10-32 | UNF | Female | 9133K32 | 000000 | ||
| 1/2" | 10 to 100 | 100 | Not Rated | 2" | 3 5/8" | — | — | Clockwise and Counterclockwise | Set Screw | 6-32 | 10-32 | UNF | Female | 9133K33 | 000000 | ||
For Keyed Shafts | |||||||||||||||||
| 5/8" | 30 to 300 | 100 | Not Rated | 2 3/4" | 3 5/8" | 3/16" | 3/32" | Clockwise and Counterclockwise | Set Screw | 8-32 | 10-32 | UNF | Female | 9133K44 | 000000 | ||
High-Torque Friction Torque Limiters
Shaft-to-Shaft
 |  |
Single Spring—Single-spring torque limiters let you make finer torque adjustments than double-spring torque limiters but can only withstand half as much torque.
Double Spring—Double-spring torque limiters handle twice as much torque as single-spring torque limiters but are not the best for making precise adjustments at low torques.
Misalignment Capability | Roller Chain | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Shaft Type | Torque, ft·lbf | Max. Rotation Speed, rpm | Parallel | Angular | OD | Overall Lg. | Keyway Wd. × Keyway Dp. | Drive Direction | Shaft Mount Type | Standard | Trade No. | Each | |||
Single Spring | ||||||||||||||||
| 1/2" × 1/2" | Round × Round | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | — | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N111 | 0000000 | ||
| 1/2" × 5/8" | Round × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N113 | 000000 | ||
| 1/2" × 3/4" | Round × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N115 | 000000 | ||
| 5/8" × 5/8" | Keyed × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N117 | 000000 | ||
| 5/8" × 3/4" | Keyed × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N119 | 000000 | ||
| 3/4" × 3/4" | Keyed × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N122 | 000000 | ||
| 1" × 1" | Keyed × Keyed | 0 to 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 1/4" × 1/8" 1/4" × 1/8" | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N131 | 000000 | ||
| 12 mm × 12 mm | Keyed × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4 mm × 2 mm 4 mm × 2 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N124 | 000000 | ||
| 12 mm × 15 mm | Keyed × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4 mm × 2 mm 5 mm × 2.5 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N126 | 000000 | ||
| 15 mm × 15 mm | Keyed × Keyed | 0 to 25 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 5 mm × 2.5 mm 5 mm × 2.5 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N128 | 000000 | ||
| 15 mm × 20 mm | Keyed × Keyed | 0 to 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 5 mm × 2.5 mm 6 mm × 3 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N133 | 000000 | ||
| 20 mm × 20 mm | Keyed × Keyed | 0 to 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6 mm × 3 mm 6 mm × 3 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N135 | 000000 | ||
| 20 mm × 25 mm | Keyed × Keyed | 0 to 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6 mm × 3 mm 8 mm × 4 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N137 | 000000 | ||
| 25 mm × 25 mm | Keyed × Keyed | 0 to 75 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 8 mm × 4 mm 8 mm × 4 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N139 | 000000 | ||
Double Spring | ||||||||||||||||
| 1/2" × 1/2" | Round × Round | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | — | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N112 | 000000 | ||
| 1/2" × 5/8" | Round × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N114 | 000000 | ||
| 1/2" × 3/4" | Round × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N116 | 000000 | ||
| 5/8" × 5/8" | Keyed × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N118 | 000000 | ||
| 5/8" × 3/4" | Keyed × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N121 | 000000 | ||
| 3/4" × 3/4" | Keyed × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 3/16" × 3/32" 3/16" × 3/32" | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N123 | 000000 | ||
| 1" × 1" | Keyed × Keyed | 0 to 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 1/4" × 1/8" 1/4" × 1/8" | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N132 | 000000 | ||
| 12 mm × 12 mm | Keyed × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4 mm × 2 mm 4 mm × 2 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N125 | 000000 | ||
| 12 mm × 15 mm | Keyed × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 4 mm × 2 mm 5 mm × 2.5 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N127 | 000000 | ||
| 15 mm × 15 mm | Keyed × Keyed | 0 to 50 | 1,800 | 0.01" | 3° | 2 3/4" | 2 1/4" | 5 mm × 2.5 mm 5 mm × 2.5 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 35-2 | 4782N129 | 000000 | ||
| 15 mm × 20 mm | Keyed × Keyed | 0 to 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 5 mm × 2.5 mm 6 mm × 3 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N134 | 000000 | ||
| 20 mm × 20 mm | Keyed × Keyed | 0 to 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6 mm × 3 mm 6 mm × 3 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N136 | 000000 | ||
| 20 mm × 25 mm | Keyed × Keyed | 0 to 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 6 mm × 3 mm 8 mm × 4 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N138 | 000000 | ||
| 25 mm × 25 mm | Keyed × Keyed | 0 to 150 | 1,800 | 0.01" | 3° | 3 11/16" | 2 13/16" | 8 mm × 4 mm 8 mm × 4 mm | Clockwise and Counterclockwise | Set Screw | ANSI | 40-2 | 4782N141 | 000000 | ||
Electric Clutch/Brakes for Face-Mount Motors
 |  |
Controller | Clutch/Brake |
From one assembly, electrically control when to transmit power with a clutch and when to hold a load in place with a brake. The clutch and brake each have their own circuit, so they can be controlled separately. To disengage either one, remove power to its circuit. Disengaging the clutch disconnects the load from your motor, stopping power transmission without stopping your motor. Disengaging the brake releases it.
These clutch/brakes have a mounting pattern that is designed to mount directly to your NEMA face-mount motor. Fasten them to your motor's shaft by tightening the set screws, which bite into your shaft for a tight hold. To the other side, attach a gearbox or couple a gear, sprocket, pulley, or other component.
Controllers (sold separately) convert an AC input into two DC outputs that alternate engaging the clutch and the brake. If their green LED is lit, the clutch has power. If their red LED is lit, the brake has power. Mount these controllers inside a conduit box (sold separately).
Max. Power, hp | Max. Rotation Speed, rpm | Voltage, V DC | For Motor Frame Size | OD | Overall Lg. | Material | Drive Direction | Shaft Dia. | Keyway Width × Keyway Depth | Electrical Connection Type | Wire Lead Lg. | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Through Shaft | ||||||||||||||||
| 3/4 | 3,600 | 90 | NEMA 48Y, NEMA 56C | 6 3/4" | 6 3/4" | Steel | Clockwise and Counterclockwise | 5/8" | 3/16" × 3/16" | Hardwire | 36" | UL Listed, C-UL Listed | 61355K31 | 000000000 | ||
| 3 | 3,600 | 90 | NEMA 48Y, NEMA 56C | 6 3/4" | 6 3/4" | Steel | Clockwise and Counterclockwise | 5/8" | 3/16" × 3/16" | Hardwire | 36" | UL Listed, C-UL Listed | 61355K32 | 00000000 | ||
 |
Conduit boxes attach directly to these clutch/brakes to protect wiring from dust and moisture.
No. of Knockouts | Knockout Trade Size | Lg. | Wd. | Ht. | Material | Enclosure Rating | Certification | Each | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 1/2 | 2 1/4" | 3 1/4" | 2 3/16" | Galvanized Steel | NEMA 4 | UL Listed, C-UL Listed | 4406N103 | 000000 |
 |
Material | Includes | Each | ||
|---|---|---|---|---|
| Steel | Two Covers, Two Gaskets, Four Mounting Screws | 4406N104 | 000000 |
