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 when 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.
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 when 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.
Unit of Measure
Maximum Torque |
N/A 190 lbs26 mkp |
No. of Springs |
N/A 1 |
OSD Half |
N/A 3/4 Inch19.1 mm |
Coupling Half |
N/A 1 7/16 Inch36.5 mm |
Coupling Half No. |
N/A 5026A |
OSD Sprocket No. |
N/A 50A26GC |
Coupling Chain No. |
N/A D50 |
For Bore Sizes Not Shown, Add Charge to List Price per Half |
N/A $20.00 |
A - Diameter |
N/A 5.775 Inch147 mm |
B - Length |
N/A 1 1/2 Inch38 mm |
C - Length |
N/A 2 7/8 Inch73 mm |
D - Overall Length |
N/A 4 3/16 Inch106 mm |
E - Diameter |
N/A 4 1/2 Inch114 mm |
Weight |
N/A 16 lbs7.30 kg |
