Spohn F5-M34-605 - Manual (Page 3)

Del-Sphere ™ Pivot Joint Instructions & Notes
The Del-Sphere™ pivot joints are slightly greased for assembly purposes. The bushings inside
of the Del-Sphere™ pivot joints are made of Delrin, which is self-lubricating. We do not
recommend greasing the pivot joint any further than as it is supplied as further grease will
only attract and retain dirt and grit. The pivot joints are equipped with grease fittings simply
because we know certain customers would want/request them no matter what we say.
Our Del-Sphere™ pivot joints are 100% rebuild-able. We doubt you will ever need to rebuild
them, but they certainly can be. The Delrin bushings should last the life of your vehicle. What
you may find is after you have a lot of miles on the pivot joints the tolerances may slightly
open. It is for this reason that we made the pivot joints adjustable. By tightening the threaded
end retainer you can take up any slack and make the joint as tight as it was when new, it’s
that simple. This also allows you to vary the torque load applied to the pivot ball. If you want
a very low friction joint you can loosen the threaded end retainer, etc. When making
adjustments to the threaded end retainer you will need to loosen the set screw with an allen
wrench. When making your adjustment align one of the threaded retainer end’s slots with the
set screw and re-tighten the set screw, this locks the threaded end retainer’s position in to
place and keeps it locked to your setting. Use our Part# DS34-W adjusting tool for easy
adjustments.
What is a Del-Sphere™ pivot joint? Think of the Del-Sphere™ pivot joint as a Delrin
bushed spherical rod end. Designed and manufactured exclusively by Spohn Performance, we
have taken suspension performance to the next level. Our Del-Sphere™ pivot joint features
either a one piece forged and heat treated chrome moly housing or a CNC machined 1020
DOM housing (weldable version), a heat treated and hard chrome plated chrome moly
spherical ball, Delrin bushing races, heat treated retainer washer and snap ring, heat treated
and zinc plated chrome moly threaded adjuster ring, an external grease fitting and a beautiful
silver zinc plated housing finish. The Delrin bushing races absorb shock and road noise so you
get the quiet and smooth ride of a bushing as well as 28 degrees of rotation!
What is Delrin, and why did you choose to use it? Delrin is an acetal homopolymer made
by DuPont. It is characterized as having an excellent combination of physical properties that
make it suitable for numerous applications. With extremely low moisture absorption and a low
coefficient of friction (self-lubricating), Delrin is uniquely tailored for wear applications in high
humidity or moisture environments. Delrin will maintain constant physical properties under
high moisture conditions and out-perform nylon or polyurethane under these conditions. Delrin
has a 10,000 psi tensile strength and a 120 Rockwell Hardness rating making it ideal for our
Del-Sphere™ pivot joint application.
Replacement Parts:
Part # Description
DS34RH Forged Del-Sphere™ Assembly - 3/4"-16 RH x 3/4" Bore
DS34LH Forged Del-Sphere™ Assembly - 3/4"-16 LH x 3/4" Bore
DS34B-225 2.25” O.D. x 0.200” Wall 1020 DOM Weldable Del-Sphere™ Assembly
DS34B-250 2.50” O.D. x 0.325” Wall 1020 DOM Weldable Del-Sphere™ Assembly
DS34-W Del-Sphere™ Adjustment Tool
DS34-Wash Del-Sphere™ End Washer
DS34-TE Del-Sphere™ Threaded Adjuster End
DS34-SR Del-Sphere™ Snap Ring
DS34-Bush Del-Sphere™ Delrin Bushing (2 per assembly)
DS34-Ball Del-Sphere™ Hard Chrome Plated Spherical Ball
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