Polaris sportsman 700 twin?

I dont know where the wheel bearings are, but if i replace the my right rear axle will that be replacing the wheel bearings also? and here is the axle i just bought http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=180612789949&viewitem=&sspagename=STRK%3AMEWNX%3AIT