The Dalton OSDC (Overload Safety Device Coupling) provides overload protection through the use of an OSD unit combined with a roller chain coupling half counterbored to fit the OSD flange. Standard double-width roller chain is used to couple the basic OSD unit and the coupling half.
The OSDC can be set with a torque wrench for maximum load desired. The unit functions as a roller chain coupling until an overload occurs, causing the OSDC to disengage. The device is automatically re-engaged whenmore the overload is eliminated.
FORMULA FOR TORQUE-HORSEPOWER (Foot Pounds)
TORQUE (Foot. Pounds) = (HPx5252)/RPM
HORSEPOWER = (Torque x RPM)/525
In furnishing a coupling half to be used in the "OSDC", care must be taken that a standard cut tooth sprocket is not used. The teeth of the "OSDC" coupling half are cut with a special tooth form to compensate for shaft misalignment.
Important Note:
The "OSDC" overload safety device can be made to suit your application. Send us your blueprints or specifications, for recommendations by our engineering department. less
The OSDC can be set with a torque wrench for maximum load desired. The unit functions as a roller chain coupling until an overload occurs, causing the OSDC to disengage. The device is automatically re-engaged whenmore the overload is eliminated.
FORMULA FOR TORQUE-HORSEPOWER (Foot Pounds)
TORQUE (Foot. Pounds) = (HPx5252)/RPM
HORSEPOWER = (Torque x RPM)/525
In furnishing a coupling half to be used in the "OSDC", care must be taken that a standard cut tooth sprocket is not used. The teeth of the "OSDC" coupling half are cut with a special tooth form to compensate for shaft misalignment.
Important Note:
The "OSDC" overload safety device can be made to suit your application. Send us your blueprints or specifications, for recommendations by our engineering department. less
Unit of Measure
Maximum Torque |
N/A 120 lbs17 mkp |
No. of Springs |
N/A 1 |
OSD Half |
N/A 1 Inch25.4 mm |
Coupling Half |
N/A 1 1/2 Inch38.1 mm |
Coupling Half No. |
N/A 4028A |
OSD Sprocket No. |
N/A 40A28GC |
Coupling Chain No. |
N/A D40 |
For Bore Sizes Not Shown, Add Charge to List Price per Half |
N/A $20.00 |
A - Diameter |
N/A 4.866 Inch124 mm |
B - Length |
N/A 1 1/8 Inch29 mm |
C - Length |
N/A 2 1/8 Inch54 mm |
D - Overall Length |
N/A 3 1/32 Inch77 mm |
E - Diameter |
N/A 4 Inch101.6 mm |
Weight |
N/A 10 lbs3.85 kg |
