Bridge Supported Drive Assemblies Model 12B1

Model 12B1

Output Torque (Note 1): 15,800 ft-lbs (21,400 N-m)

Drive Motor: 1/2 hp

Approximate Worm Gear Weight: 1,950 lbs

Nominal Diameter
Mechanism Tip Speed (Note 2)
55 ft 9.20 ft/min 0.0543 rpm


  1. Defined as: Maximum Continuous 20 Year Rated Output Torque
  2. Tip Speed calculated at Mechanism diameter = 12" less than Collector Nominal Diameter
  3. These drive units are not recommended for use on clarifier mechanism with diameter greater than the range listed in the table above.
  4. Half Coupling Included, See General Arrangement Drawing.
worm gear 12B1


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