Constant-Torque® Marine Worm Gear Clamps use a patented Belleville spring mechanism to automatically adjust the clamp diameter in response to changes in environmental and operational temperatures. The 9/16" wide Aero Seal design is for smaller diameters and is torque rated for 30-70in./lbs. The 5/8" wide Heavy Duty design is for larger diameters and is torque rated 50-125 in./lbs. Both designs are marine quality stainless steel, and are listed here for your convenience.
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Constant-Torque® Marine Worm Gear Clamps

Constant-Torque® 27.00 Millimeter (mm) Maximum Size Marine Worm Gear Clamp
Constant-Torque® Marine Worm Gear Clamps

Constant-Torque® 32.00 Millimeter (mm) Maximum Size Marine Worm Gear Clamp
Constant-Torque® Marine Worm Gear Clamps

Constant-Torque® 38.00 Millimeter (mm) Maximum Size Marine Worm Gear Clamp
Constant-Torque® Marine Worm Gear Clamps

Constant-Torque® 44.00 Millimeter (mm) Maximum Size Marine Worm Gear Clamp
Constant-Torque® Marine Worm Gear Clamps

Constant-Torque® 51.00 Millimeter (mm) Maximum Size Marine Worm Gear Clamp
Description N/A Constant-Torque® Marine Worm Gear Clamps use a patented Belleville spring mechanism to automatically adjust the clamp diameter in response to changes in environmental and operational temperatures. The 9/16" wide Aero Seal design is for smaller diameters and is torque rated for 30-70in./lbs. The 5/8" wide Heavy Duty design is for larger diameters and is torque rated 50-125 in./lbs. Both designs are marine quality stainless steel, and are listed here for your convenience.
Brands N/A Constant-Torque®
Weight N/A 1 lb N/A 1 lb N/A 1.1 lb N/A 1.1 lb N/A 24 lb
Band Width (Decimal) N/A .312 in
Band Material N/A 301 Stainless Steel (SS) 304 Stainless Steel (SS)
Maximum Clamp Size N/A 1.063 in27 mm N/A 1.250 in32 mm N/A 1.500 in38.00 mm N/A 1.750 in44.00 mm N/A 2.000 in51.00 mm
Minimum Clamp Size N/A 0.562 in14.00 mm N/A 0.687 in17.00 mm N/A 0.812 in21.00 mm N/A 0.812 in21.00 mm N/A 1.062 in27.00 mm
Screw Material N/A 316 Stainless Steel (SS)
Housing Material N/A 301 Stainless Steel (SS) 304 Stainless Steel (SS)
Design Options N/A Aero Seal
Additional Information N/A Their recommended uses include:
  • turbo exhaust sleeves
  • heater hoses
  • coolant hoses, and
  • intake systems.
Features and Benefits N/A
  • Patented pressure compensation
  • Quadra-lock construction - Housing is orbitally riveted at 4 points for added strength
  • Energy stored in the compressed Belleville spring controls the automatic clamp adjustment
  • More tightening torque with maximum vibration resistance
  • Eliminates replacement of single-use clamps during maintenance
  • Integral Liner protects soft or silicone hoses
  • Torque-Check permits visual confirmation of proper installation
  • Fleet standard - easy to install and replace in the field
  • All Stainless Steel - virtually unlimited product life
  • Reusable
  • Marine & underground applications
Note N/A Same sizes are available in other materials, finishes and varying grades of stainless steel. For more information, contact EFC International directly.
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