Heavy-Duty, Enclosed Gear Assemblies

TRUMBULL MITER GEARS are designed to fulfill the following primary functions:
• To be used as an add-on component to Trumbull Floorstands or Pedestals
• To be mounted directly to valves where a 90 degree change in the input shaft direction is required
• For use as a stand-alone component in a valve operating assembly with rotating elements, such as extension stems, where the installed conditions require one or more 90 degree changes of direction

Housings are cast ductile iron 65-45-12 with a Tnemec N140-1211 two-part epoxy, NSF-61 certified exterior coating. The gears are case hardened steel; the gear shafts and fasteners are 316 stainless steel.

Trumbull Miter Gear Assemblies are provided standard with a recessed grease fitting for easy maintenance and Buna-N O-ring seals on each end adapter.

Trumbull Miter Gears have a recommended maximum torque of 300 ft-lb (406 N-m). For applications with higher torque requirements, please consult Trumbull.

Gear Ratio = 1:1, Input/Output Shaft Diameter = 0.984″.

3 Standard End Adapters = 6 Possible Combinations!

End Configurations Model# Weight Typical Usage for Each End Adapter
8" Round x 3-1/2" Round MG1A 39.00 lbs. 8" Round - mates to our Floorstands
8" Round x 3-1/2" Round MG1A MG1A 3-1/2" Round - for use with handwheel or nut operators
8" Round x 4-1/4" Square MG1B 42.00 lbs. 8" Round - mates to our Floorstands
8" Round x 4-1/4" Square MG1B 42.00 lbs. 4-1/4" Square - adapts for guide, bracket & motor mountings
8" Round x 8" Round MG1C 46.00 lbs. Both 8" Round ends mate to our Floorstands & other fabrications such as torque tubes
4-1/4" Square x 3-1/2" Round MG2A 37.00 lbs. 4-1/4" Square - adapts for guide, bracket & motor mountings
4-1/4" Square x 3-1/2" Round MG2A 37.00 lbs. 3-1/2" Round - for use with handwheel or nut operators
4-1/4" Square x 4-1/4" Square MG2B 35.00 lbs. Both 4-1/4" Square ends easily adapt for guide, bracket & motor mountings
3-1/2" Round x 3-1/2" Round MG3A 32.00 lbs. Both 3-1/2" Round ends for use with either extension stem assemblies, handwheel, or nut operators