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Duramax Marine
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Johnson Cutless
Water-Lubricated
Bearing Systems,
Rudder Bearings and Stern Tube Filler
. Advanced
Water-Lubricated Strut, Stern Tube and Rudder Bearing Systems
. Duramax Heat
Exchange Systems
. Duramax Shaft
Seal Systems
. Duramax Impact
Protection Systems
. Duramax
Industrial Products
.

Duramax Ultra-X Lasts Over 5 Times Longer
Than Other Packing.

Ultra-X installed
Ultra-X is a high performance, non-asbestos, compression packing that is engineered specifically for the marine industry. Its excellent lubricity and high thermal conductivity keeps shafts running cool at all speeds. Unlike flax and other packing materials, once Ultra-X is installed you never need to worry about it again, virtually eliminating maintenance.


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What is Duramax Ultra-X High-Performance Packing?

It is a braided hydrophobic fiber packing. A unique, patented manufacturing technology encapsulates graphic particles and impregnates specialized lubricants into its expanded PTFE strands. Unlike competitors’ packing that blends graphite particles between strands during the braiding process.

transfer . loose
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Benefits of Ultra-X High Performance Packing

  • Stays pliable-will not harden or become brittle
  • Easy to install and remove for repacking
  • Grease-free installation - east to cut, and conforms easily
  • High tensile strength - not consumed in use
  • Self-lubricating - virtually needs no water to lubricate
  • Virtually eliminates maintenance, shaft scoring and replacement
  scoring
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Duramax Ultra-X always runs cool, even at high shaft speeds.

Ultra-X transfers frictional heat to stuffing box, which functions as a heat sink. In contrast, flax packing acts as an insulator, trapping frictional heat that can cause shaft damage and loss of seal.

heat transfer
Flax
. thermal
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Available in 18 Standard Sizes.

Size
(Inch)
1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4
Size
(mm)
3.2 4.8 6.36 7.9 9.5 11.1 12.7 14.3 15.9 19.1 22.2 25.4 28.6 31.8 34.9 38.1 41.3 44.5
Approx.
FT/LB
67 35 20 13 9.5 7.0 5.0 4.0 3.2 2.3 1.8 1.4 1.2 1.0 0.9 0.7 0.6 0.5

Ultra-X grouping
  • Duramax Ultra-X comes packed standard on spools of: 1, 3, 5 and 10 pounds.
  • Bulk spools of 25 and 35 pounds are also available.
  • Custom size packing is available upon request.
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pdf   Duramax Ultra-X Brochure
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bearings

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Duramax Ultra-X meets environmental requirements

Keeps bilge free of contaminants. Virtually needs no water for lubrication, and it doesn’t shrink- practically eliminating stuffing box drip. Helps eliminate overboard pumping of polluted bilge water and contaminates.
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Complete Duramax system for optimum journal life and performance.

  • Johnson Duramax Heavy-Duty Stuffing Box
  • Johnson Cutless Bearings
  • Ultra-X High-Compression Packing
Ultra-x and Stuffing Box
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About Johnson Stuffing Boxes

 

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  Duramax® is a registered trademark of Duramax Marine® LLC.
Ultra-X® is a registered trademark of Duramax Marine® LLC.
 
       

17990 Great Lakes Parkway, Hiram, Ohio 44234 U.S.A.  |  PHONE +1 440.834.5400  |  FAX +1 800.497.9283 USA & Canada or +1 440.834.4950 
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