AIR-SEAL STUFFING BOXES

MODELS
1786-IR – WATER-GREASE LUBRICATION, WITH “AIR-SEAL”
1787-IR 
– GREASE LUBRICATION, WITH “AIR SEAL”
1788-IR – WATER LUBRICATION ONLY, WITH “AIR SEAL”
1789 – WATER LUBRICATION
1790 – GREASE LUBRICATED

 

 

 

Description

FIG. 1786-IR – WATER-GREASE LUBRICATION, WITH “AIR-SEAL”

For use with water-lubricated stern tube bearings. Fig. 1786-IR is fitted with inflatable “Air-Seal” ring; also inlets for water lubrication to bearings, and “zerk” fitting with lantern-ring for grease lubrication of packing.

FIG. 1787-IR – GREASE LUBRICATION, WITH “AIR SEAL”

Identical to Fig. 1786-IR, but does not include inlets for water lubrication. Suitable for a short stern-tube where a forward bearing is not used. Includes “zerk” fitting and lantern-ring for grease-lubrication of packing.

FIG. 1788-IR – WATER LUBRICATION ONLY, WITH “AIR SEAL”

Fitted with water inlet for bearing lubrication. Does not include grease fitting or lantern-ring; packing gland accommodates seven rings of packing as opposed to six for grease-lubricated glands. For use with self-lubricated packing.

FIG. 1789 – WATER LUBRICATION

Lower in cost, does not include “Air-Seal” feature nor packing grease-fitting, but is otherwise the equal of the foregoing models. Water inlet delivers water to stern tube bearings.

FIG. 1790 – GREASE LUBRICATED

2-1/2” TO 7-3/4” (63.50 TO 196.85 mm)

For vessels with shafts up to 7-3/4” (196.85 mm) this economical unit offers high efficiency at moderate cost. Equipped with grease-fitting, lantern-ring and space for six rings of packing. Four glandstuds are mounted in ridges cast in barrel, providing high strength for gland compression.

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