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• Three rubber fittings—called rpm adapters—for making
contact with the end of a rotating shaft of a motor or
generator. Two have cone-shaped rubber tips that fit into a
hollowed (concave) end of a metal shaft; one (B) has a large
cone compatible with a 1/2 in. diameter shaft, the other (J)
has a smaller cone that fits
into shafts 1/4 in. across. The
third (K) fitting has its own
hollowed end; it is designed
to fit over a 1/4 in. diameter
shaft with a flat or slightly
convex end.
• One rubber/plastic fitting (the
surface speed wheel A) for
making contact with a
surface in linear motion. The
surface speed wheel has a
1/8 in. slot into which moving
wire, cable or rope fits snugly.
• Three 24 in. (6mm) long
strips of 1/2 in. (12mm) wide
adhesive reflective tape
• Three spare Phillips head
screws
• Four "AA" batteries
• This user's manual
(B)
1/2" RUBBER RPM ADAPTER
INSERTED IN BLACK PLASTIC SLEEVE
Fig. 1
(A)
SURFACE
SPEED
WHEEL
(K)
RPM ADAPTER WITH HOLLOWED END
FOR 1/4" DIAMETER SHAFTS WITH
FLAT OR CONVEX END
(J)
1/4" RUBBER
RPM ADAPTER
5
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