The broad application of Kellems grips on a wide
variety of objects requires that adequate safety factors be used to
establish working loads. The approximate breaking strength of a
Kellems grip represents an average calculation based on data
established from actual direct tension testing done in our
engineering laboratories.
It is impossible to catalog or guarantee a safety
factor suitable for all applications as operating conditions are
never the same. The tension, diameter, movement, number of objects
gripped, gripping surface, and the attachments used are just some of
the factors which vary with each application. These factors,
together with the effects of abrasion, corrosion, prior use or abuse
and any other variables of a specific application, must be
considered by the user and the grip replaced as appropriate. Where
the conditions of the application are not well defined or known or
where risk of injury to persons or property is involved, a greater
safety factor should be utilized.
Under normal conditions, Kellems' recommended
factor of safety is five for catalog listed pulling grips, and ten
for catalog listed support grips. The factory should be consulted
for specific application recommendations where strength and holding
power are important factors.
Any warranty as to quality, performance or fitness for
use of grips is always premised on the condition that the published
breaking strengths apply only to new, unused grips, and that such
products are properly stored, handled, used, maintained and
inspected by the user at a frequency appropriate for the use and
condition of the grip.
For grip applications on materials other than those
that the grips have been specifically designed for, consult the
factory. |