Four double angle contact bearings.
Two bearings to handle the end load /thrust from drilling.
Two Double angle contact bearings at the spindle nose and two Ball bearings at the top end of the spindle.
This means there is only one bearing to handle the end load /thrust from drilling
-constant complains about wearing out
The largest complaint among customers about the The Other Guys was concerning accuracy is Roundness. This complaint surfaces in more than 41% of the top 5 issues of Customers of "The Other Guys". Circularity is worse than .0010” and repeatability is very poor.