Stuffing Boxes For Vessels with journal diameters larger than 2.5" (63.5mm), Duramax offers ruggedly built and time tested bolt-on stuffing boxes. These Stuffing boxes are cast of high quality Bronze, Aluminum or steel, with an extra thick fillet reinforced flanges and precission machining. Johnson commercial stuffing boxes qualify for some of the most demanding service. Emphasis in design is on extra strength at critical stress points, and on equitable stress distribution through mounting and gland flanges

Model 1786-IR Water-Grease Lubrication with Air-Seal For use with water-lubricated stern tube bearings.Model 1786-IR is fitted with an inflatable air-seal ring; also inlets for water lubrication to bearings, and a "zerk" fitting with lantern ring for grease lubrication of packing. Shaft sizes from 2-1/2" to 15" (63.5mm to 381mm)

Model 1787-IR Grease Lubrication with "Air-Seal Identical to model 1786-IR, but does not include inlets for water lubrication. Suitable for a short stern-tube where a forward bearing is not used. Includes a "zerk" fitting and lantern ring for grease lubrication of packing. Shaft sizes from 2-1/2" to 15" (63.5mm to 381mm)

Model 1788-IR Water Lubrication only with Air-Seal Fitted with a waterinlet for bearing lubrication. does not include grease fitting or lantern ring;Packing gland accommodates seven rings of packing as opposed to six for grease lubicated glands. For use with self lubricated packing Shaft sizes from 2-1/2" to 15" (63.5mm to 381mm)

Model 1789 Water Lubrication Lower in cost, does not include Air-seal feature nor packing grease fitting., but is otherwise the equal of the above models. Water inlet dilivers water to the stern tube bearings Shaft sizes from 2-1/2" to 15" (63.5mm to 381mm)

Model 1790 Grease Lubrication For vessels with shafts up to 7-3/4"(196.85mm), this economical unit offers high efficiency at moderate cost. Equipped with grease fitting, lantern ring and space for 6 rings of packing. Four glandstuds are mounted in ridges cast in the barrel, providing high strength for gland compression Shaft sizes from 2-1/2" to 7-3/4" (63.5mm to 196.85mm)

Bulkhead or Rudder Stuffing Boxes To meet U.S. Coast Guard, ABS and other pertinent regulations, where shafts pass throught water-tight bulkheads, Fohnson offers a choice of sizes from 2-1/2" to 7-3/4" (63.5 to 196.85mm), pluss split sizes up to 36" (814.4mm). Bronxe stuffing boxes can be supplied with integral steel flanges for bulkhead welding at a slight extra charge. Available in mild steel or aluminum on a special order basis Many shipbuilders have used these units also for rudder applications, notably where demountable staves are installed as ruccer bushings.

Model 1790M Grease Lubricated This short barreled model accommodates four packing rings. Flange has a 3/16" (4.76mm) male pilot to project into bulkhead; or for compression of bearing staves in rubber mounting. Shaft sizes from 2-1/2" to 7-3/4" (63.5mm to 196.85mm)

Model 1791 Grease Lubricated A space saver - the exceptionally short barrel has an extended male pilot which allows for four packing rings projecting through the bulkhead. packing is lubricated from inboard side by a "zerk" fitting Shaft sizes from 2-1/2" to 7-3/4" (63.5mm to 196.85mm)

Model 1795   Split Configuration Grease Lubricated Split configuration allows fitting of the bulkhead stuffing box on older vessels to meet new water-tight integrity regulations without disconnecting the shaft from the engine coupling. In larger sizes, it simplifies installation and servicing Shaft sizes from 2-1/2" and higher (63.5mm)

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This site last updated September 21, 2003

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