Dalton Gear Overload Safety Devices offered by Dalton Bearing Service Inc

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Dalton Gear Overload Safety Devices

Dalton Model "OSD"

OVERLOAD SAFETY DEVICE

The Dalton "OSD" is a torque-limiter unit which prevents costly breakdowns when equipment is overloaded, by disengaging when a set maximum load is reached. The unit is re-engaged immediately when the overload is eliminated. The "OSD" is easily adjusted with a torque-wrench to the specific torque required. It can be used with a sprocket, gear, belt-pully, or flange.

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

		Dalton Roller Chain Shear Pin Coupling "RCSPC" A complete line of Dalton Shear Pin (torque limiter) Roller Chain Couplings was developed for applications where horsepower and torque or high or extreme accuracy is desired for torque settings. The coupling halves are hobbed with a special tooth form and hardened 45 to 50 Rockwell "C". Roller chain couplings, when used correctly, are unsurpassed by any other more expensive coupling. Standard sprockets should not be used for coupling applications.

		Dalton Roller Chain Flexible Couplings

		Dalton Model DRC Steel Rigid Couplings The Dalton "DRC" RIGID COUPLING is designed for speeds up to 3600 RPM. The shaft size determines the coupling to be used. Extreme care for perfect alignment must be exercised.

		Dalton Sprockets For Use In OSD Units Specialy ground sprockets are recommended for use with all Torque Limiters. Both faces of Dalton OSD sprockets are ground to approximately a 32 micro-inch finish. Uniform surfaces and parallel faces insure that Dalton OSD`s will maintain proper torque release and re-engagement much longer than units without special sprockets. In addition, fibers last longer and OSD`s require less maintenance.

		Dalton SOS Safety Overload Switch TURNS OFF POWER SOURCE AT PRE-SET LOAD LIMIT The Dalton SOS Safety Overload Switch is designed specifically to insure against breakdowns in all types of driven machinery by providing automatic shutdown at the precise moment an overload occurs. Proven reliable, the SOS Safety Overload Switch reduces downtime and production loss in medium and heavy duty chain driven systems, by shutting off power before excessive torque can cause costly damage to mechanical components. One model can accommodate chain drives of 1/2-inch pitch #40 chain to 2-inch pitch #160 chain. A final spring adjustment screw permits rapid, easy pre-setting for maximum desired load regardless of chain pitch and size. The Dalton SOS Safety Overload Switch is effective, economical insurance against heavy-duty chain drive overloads in a wide range of applications.

		Dalton Model "OSD" OVERLOAD SAFETY DEVICE COUPLING 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

		Model "ROSDC" RIGID OVERLOAD SAFETY DEVICE COUPLING The Dalton ROSDC (Rigid Overload Safety Device Coupling) provides overload protection through the use of an OSD unit combined with a rigid coupling half counterbored to fit the OSD flange. All steel rigid coupling half is bolted to a basic OSD unit to form a rigid coupling with the overload feature. The ROSDC can be set with a torque wrench for maximum load desired. The unit funcitons as a rigid coupling until an overload occurs, causing the ROSDC to disengage. The device is automatically re-engaged when the overload is eliminated. ROSDC specs FORMULA FOR TORQUE-HORSEPOWER (Foot Pounds) TORQUE (Foot. Pounds) = (HPx5252)/RPM HORSEPOWER = (Torque x RPM)/5252

Dalton Gear

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