Allowable front bearing "slop"

[rootar]

Welll i had my buggy all stripped down cleaning today and noticed a little bit of play at the shaft of the Nue 1515, mine is the latest version with the big bearings (like the teckno and cc verisons) i bought it in july i think from mike...id ahve to look but anyways ive only been running it a few months i guess and was wondering whats the allowable amount of bearing slop before i need to replace them?

right now i measureing it by clamping the motor to my bench and then lifting the shaft and setting my caliper to zero and then pressing it down and im getting .72 mm of total "slack"........


any input?