It's likely the end bearing, although just because a parts illustration
shows a ball bearing assembly, it doesn't mean that's what's in there.
They will probably happily exchange it, which shouldn't cost you anything if
you have a store nearby.

Haven't you ever noticed the obscure or fine print on a warranty form or
owner's manual that reads something like "parts and specifications subject
to change without notice"?

When I disassembled a new Chinese angle grinder (as I always do), I found a
steel bushing shaped like a ball bearing (ID, OD, thickness) in place on the
output (spindle/wheel) shaft.

And no grease, but lots of dirt/grit.

--
WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html


GeoLane at PTD dot NET wrote in message
...

I got one for Christmas and the metal part at the front gets hot
awfully fast just running it at idle without even stressing it. In
less than a minute it's uncomfortably hot, but not so hot that I can't
hold it. Are they all like this or did I get one with a problem? It
doesn't sound unusally noisy, and the parts breakdown shows it having
ball bearing, not sleeves.

RWL