« previous entry | next entry »
Maijs. 5., 2009 | 10:19 am
posted by: branwen in pajautaa
labdien!
pieredzejusie skritulotaji, kas butu janem vera perkot pirmas skritulslidas? varbut ir kadi parbauditi kvalitativi zimoli/labi veikali? un vel, vai butu kaut ka ipasi jaiespringst par (atkal)macisanos skritulot, kaut kad sen sen ir paris reizes braukts, vai ari tas tapat ka ar velo "neaizmirstas"?
pieredzejusie skritulotaji, kas butu janem vera perkot pirmas skritulslidas? varbut ir kadi parbauditi kvalitativi zimoli/labi veikali? un vel, vai butu kaut ka ipasi jaiespringst par (atkal)macisanos skritulot, kaut kad sen sen ir paris reizes braukts, vai ari tas tapat ka ar velo "neaizmirstas"?
from: anonīmiķis
date: Maijs. 5., 2009 - 11:12 am
#
A table that is very informative is the following where for each of the 4 ABECs it is listed the max number of rpm's each is meant to safely work at:
===============================
ABEC 1 less than 25,000 rpm
ABEC 3 less than 32,500 rpm
ABEC 5 less than 37,000 rpm
ABEC 7 less than 43,000 rpm
===============================
The next point is to translate these limit rpm's in skater's speeds. To do that consider a skater with 80mm wheels. Simple algebra shows that:
ABEC1 is good for skaters going up to 190kmh (or ~110 mph);
ABEC3 is good for speeds up to 245 kmh (or ~152 mph)
and so on..
Atbildēt | Iepriekšējais