SPRING 2018

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THE DISTRIBUTOR’S LINK
VOGELSANG FASTENER SOLUTIONS LARGE DIAMETER SLOTTED TENSION PINS VS. ALTERNATIVE FASTENERS from page 56
Large Diameter Pin Application Examples
Agriculture attachments – large diameter 5/8”
slotted tension pin can replace a bolt, two flat washers,
lock washer and nut, saving material costs & labor.
Agriculture Plow Joint – use M16, M18, and M20
large slotted tension pins.
Communication Dome – Slotted tension pins hold
the pivot joints together. The size used was a 21mm
diameter. The cost savings was in the fact that the
tension pins not only acted as locating devices, but also
secured the connection structure joints.
Material handling equipment mines – M18
pins are used to assemble the conveyor system. They
replaced the bolt and nut application.
Forestry Heavy Duty equipment – Slotted tension
pins are used in booms and bucket applications.
Construction bucket teeth – use slotted tension
pins in ½” inch and metric M12 diameters.
The standard ASME B18.8.2-2000 slotted tension
pins are stronger than a standard duty ASME B18.8.2
coiled pin. This would also be true when comparing
ISO 8752 slotted to the ISO 8750 coiled pins. In fact
standard slotted tension pins are stronger than the
mild steel solid pins, taper
pins, or grooved pins of like
diameter. They can handle
the hardest application
demands. More strength,
versatility for hole design,
and ease of installation
make the slotted pins a “go
to” for many applications.
Made on state of the
art punch press machines,
the design possibilities are
endless. We helped work
on a crankshaft application
to supply a special
replacement part in an ISO 13337 thin walled slotted
tension pin to replace parts made back in the 1950’s. If
you can think it we can build it for you!
Most holes can be drilled to tolerance without
special tools. There is no need for the extra cost of
reaming, threading or counter boring the holes. Standard
hole size tolerances are all a published standard taking
any of the guess work out of your design. The holes do
not require the close tolerances of a solid pin and can be
used where the holes of a solid pin have become worn
as a replacement fastener.
Doubling Up for Heavy Duty Application
For additional shear strength, two slotted pins may
be used in a combination-one pin installed into the
other pin. This common practice makes the pins greatly
stronger than the ISO 8748 heavy duty coiled pins or
the ASME B18.8.2. It is important to have the slots
staggered by 180 degrees. It is also recommended when
using the a doubled up pin to have the hole size to the
high side of the tolerance. The reason for that is due to
the higher installation force required to push the doubled
up pins into the application.
CONTINUED ON PAGE 160