Guide for selecting Height Adjusters
The HA height adjustment facilitates precise coupling alignment for engine installations and boat building tolerances.
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Type HA is a height adjuster made in corrosion protected grade 8 steel.
The steel is zinc plated and chromated according to DIN 50691/ISO 2081.
The height adjuster is supplied complete with washer and nut for fastening to the mounting and two nuts and a lock washer for the engine foot fastening.
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Type HA is available in various sizes to suit the small and medium range of Trelleborg Industrial AVS mountings, as listed in the table below.
It allows mountings to be retrofitted to existing installations where original spares are unobtainable.
Maximum forces on M16 and M20
Height adjuster spindles used in Marine application where thrust forces are present.
Appropriate height adjuster spindle and thread size should be selected in conjunction max allowable loads of the mounting.
The height adjuster must therefore be selected accordingly.
Operation outside these specified conditions may be acceptable depending on installation type.
Clarificaton for this should be obtained from Trelleborg Industrial AVS Design and Applications Team.