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| Dalton Model "OSD" OVERLOAD SAFETY DEVICE The clutch facings used, have been selected after research and testing, to resist expansion due to moisture. The flanges are high carbon steel forgings, machined accurately for precise operation. The threaded hub and pressure plate are machined square and ground where necessary to position the plate and eliminate extra parts. The torque adjusting nut is hexagonal for easier installation and adjustment. Equipped with needle bearings to eliminate shaft scoring, seizing, and wear. Use only specially ground sprockets. The Dalton "OSD", Overload Safety Device Unit, is equipped with a single torque adjusting nut for torque uniformity. Only one setting on the single e nut applies equal pressure on the entire unit, whereas the use of multiple e nuts would make it extremely difficult to equalize the pressure and would defeat the purpose of a positive release. A standard pipe wrench, which is readily available everywhere, may also be used to adjust this nut. |
 
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OSD Specs
Please call for discounts on list prices.
FORMULA FOR TORQUE-HORSEPOWER (Foot Pounds)
TORQUE (Foot. Pounds) = (HPx5252)/RPM
HORSEPOWER = (Torque x RPM)/5252
CLICK ON CLUTCH NUMBER BELOW FOR ADDITIONAL DIMENSIONAL INFORMATION.
| Clutch No. | Maximum
Torque lbs. |
Overall
Length |
Minimum
Bore |
Maximum
Bore |
List Price |
| OSD-131 | 6 | 1-3/8" | 1/4" | 3/8" | 52.00 |
| OSD-131D | 12 | 1-3/8" | 1/4" | 3/8" | 62.00 |
| OSD-225 | 35 | 2" | 3/8" | 3/4"* | 72.00 |
| OSD-225D | 50 | 2" | 3/8" | 3/4"* | 88.00 |
| OSD-256 | 50 | 2" | 3/8" | 7/8" | 92.00 |
| OSD-256D | 75 | 2" | 3/8" | 7/8" | 110.00 |
| OSD-337 | 100 | 2-1/8" | 1/2" | 1" | 112.00 |
| OSD-337D | 175 | 2-1/8" | 1/2" | 1" | 132.00 |
| OSD-362 | 120 | 2-1/8" | 1/2" | 1-1/8" | 132.00 |
| OSD-362D | 185 | 2-1/8" | 1/2" | 1-1/8" | 156.00 |
| OSD-450 | 190 | 2-7/8" | 3/4" | 1-3/8" | 152.00 |
| OSD-450D | 285 | 2-7/8" | 3/4" | 1-3/8" | 180.00 |
| OSD-493 | 210 | 2-7/8" | 3/4" | 1-5/8" | 196.00 |
| OSD-493D | 360 | 2-7/8" | 3/4" | 1-5/8" | 225.00 |
| OSD-600 | 320 | 3" | 1" | 1-3/4" | 240.00 |
| OSD-600D | 440 |
3" | 1" | 1-3/4" | 270.00 |
| OSD-750 | 550 | 3-3/4" | 1" | 2-1/2" | 360.00 |
| OSD-750D | 775 | 3-3/4" | 1" | 2-1/2" | 392.00 |
| OSD-900 | 1000 | 4-1/4" | 1-1/4" | 3-1/2" | 912.00 |
| OSD-900D | 1250 | 4-1/4" | 1-1/4" | 3-1/2" | 976.00 |
IMPORTANT NOTES:
The chart shown above is for stock sizes. The "OSD" overload safety device can be made to suit your application.
Send us your blueprints or specifications, for recommendations by our engineering department.
Dalton Overload Safety Devices can be plated with cadmium,
chrome and zinc.
Sprockets can be furnished in ferrous materials.
See Special Sprockets for Dalton Torque Limiters for sprocket sizes, bore tolerances, and minimum tooth sprockets.
"OSD" Parts List
Please call for discounts on list prices.
| OSD 131 |
OSD 225 |
OSD 256 |
OSD 337 |
OSD 362 |
OSD 450 |
OSD 493 |
OSD 600 |
OSD 750 |
OSD 900 |
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| HUB | 21.00 | 40.00 | 48.00 | 59.00 | 65.00 | 76.00 | 94.40 | 117.00 | 202.00 | 620.00 |
| FIBER (EA) | 6.50 | 8.00 | 10.40 | 13.00 | 14.00 | 16.00 | 19.50 | 23.50 | 40.00 | 80.00 |
| PRESSURE PLATE | 12.00 | 16.00 | 21.00 | 26.50 | 28.50 | 32.00 | 46.50 | 64.00 | 74.00 | 186.00 |
| SPRING | 16.00 | 21.50 | 23.00 | 26.50 | 31.00 | 37.00 | 37.50 | 40.00 | 42.50 | 84.80 |
| NUT | 9.20 | 10.60 | 14.50 | 19.00 | 20.00 | 21.50 | 30.00 | 40.00 | 63.50 | 132.00 |
| BEARING | 5.30 | 8.00 | 10.00 | 12.70 | 18.50 | 24.70 | 31.00 | 38.00 | 47.70 | 96.00 |
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212 Colfax Ave. N. • Minneapolis, MN 55405 • Phone: 612-374-2150 • Fax: 612-374-2467 • 800-328-7485
CONTACT US
