ENGINE MOUNTS Weight Capacity Ranging From 30 To 2,000 Pounds Per Mount
The R&D Engine Mounts are specifically designed for the rigors of marine, industrial, commercial, and heavy equipment applications.
These engine mounts are pre-loaded to provide a dampening effect when encountering upward or downward pressure. Most R&D mounts are shear loaded to absorb forward and reverse thrust, yet soft enough to isolate engine vibrations from the surface where they are mounted. To assist in the ease of installation, the mounts have nuts to adjust the height. The slotted holes in the base of the mount assist in alignment and installation. To help increase the longevity of the mounts, all steel parts are zinc plated and passivated to limit corrosion. The threads of the stud are rolled and reduce the possibility of shearing the stud. This technology produces a significantly stronger thread than possible when the material is cut away in conventional cut-thread die methods. More specifically, the thread rolling (cold forming) process strengthens the thread in three ways: tension, shear, and fatigue resistance. The rubber component is covered by an oil shield to protect the rubber from petroleum based products. FEATURES • Slotted holes & height adjustment to simplify alignment • Designed for a wide variety of engines
Easy height adjustment to simplify alignment
Pre-loaded during manufacturing to restrict engine movement
All parts zinc plated for corrosion resistance
Stainless steel oil shield protects the rubber element from petroleum or chemical damage. Preloaded and soft to eliminate the vertical dampening "dead zone" found in conventional engine mounts.
Rolled threads
VIBRATION ISOLATION Shear loaded mounts provide superior
isolation and restrict fore and aft movement to maintain alignment.
* Cutaway
SELECTING THE RIGHT ENGINE MOUNT Below are the formulas to use to determine the required pounds per engine mount.
GENERAL WEIGHT DISTRIBUTION
Example: Total weight of engine & gearbox = 1,200 lbs 1,200 x 0.4 = 480 x 0.5 = 240 lbs per mount Front Engine Mount 1,200 x 0.6 = 720 x 0.5 = 360 lbs per mount Back Engine Mount
FORMULAS Front Engine Mount W x 0.4 = ___ x 0.5 = ___ lbs per mount Back Engine Mount W x 0.6 = ___ x 0.5 = ___ lbs per mount
a
b
40%
60%
Front Mount Point
Balance Point
Rear Mount Point
W = weight of engine and gearbox
1. Find the center of gravity by balancing on a roller (if possible) . 2. If the center of gravity cannot be found, assume weight distribution of 60% on rear engine mounts, with 40% on the front engine mounts (if rear mount is in line with flywheel).
TO ORDER VISIT WWW.PYIINC.COM OR CALL 425-355-3669
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