Каталог Iscar вращающийся инструмент 2017 - страница 639

USER GUIDE Technical Information - Notes for Guide Bushing Installation Many of the problems in BTA drilling are caused by incorrect use of the guide bushing. The shape, type and tolerance greatly affect cutting accuracy and tool life. Please note the following when using one in your application. Resin Seal Type Guide Bushing Tolerance Resin Seal C0.3 ˜ 0.5 DEEP HOLE DRILLING Up to 1 mm DG6 Dh6 Up to 1.5 mm Workpiece Guide Bushing Oil Pressure Head Tool Diameter G6 D (mm) Tolerance (mm) 8.00 - 10.00 +0.005 ~ +0.014 Taper Cone Type 10.01 - 18.00 +0.006 ~ +0.017 18.01 - 30.00 +0.007 ~ +0.020 30.01 - 50.00 +0.009 ~ +0.025 C0.3 ˜ 0.5 50.01 - 80.00 +0.010~ +0.029 80.01 - 120.00 +0.012 ~ +0.034 Up to 2 mm 120.01 - 180.00 +0.014 ~ +0.039 180.01 - 245.99 +0.015 ~ +0.044 Workpiece Gap Guide Bushing Oil Pressure Head Flat-edge Type 30 ˜ 60° 0.5 ˜ 1.0 mm C0.3 Guide Bushing ˜ 0.5 Workpiece Guide Bushing Oil Pressure Head Recommended for Ø65 mm and less 635 635