CN1067201A - The super Seiko skill of cylindrical roller ...
The super Seiko skill of a kind of cylindrical roller and taper roller convexity.Adopt two deflector rolls that cooperatively interact that the spiral rolling surface is the cone face, the axial line of workpiece relatively its direction of advance B left or right bank an angle [alpha] is arranged, the plane parallel that the Up Highway UHW of workpiece and two deflector roll axial …