Features
Crank
rod
device
accessories
,
circular motion
can
be converted to
horizontal movement
Diameter :
12mm (1.2
cm
)
A
hole
:
about
1.88mm
, suitable to in
stall
2mm
motor
shaft
, A
class tight fit
B
hole
:
about 2.4mm
B
hole
outer contour
:
5mm
Package
Eccentric wheel x 5pcs