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material
material mild steel AISI 1045, or spheroidal graphite cast iron GT40-15(no big holes in the material and specially in the central hole).
dimensions
dia.185* thick49.5mm
Weight: 6.043kgs
surface treatment
flash Zinc plating trivalent, thickness 0.004-0.007mm white color
test
static balancing test, 2000rpm, according to standard ISO 2.5
application
for all kinds of home body building bike(a kind of fitness eqipment),which is popular in home, sports or gymnasium.
belt pulley
