A) box structure: material: Q235; The box body is formed by welding the surface of iron plate and annealed to eliminate it Internal stress by precision boring machine, integrated boring complete;
B) spindle: 40Cr; The axis is tempered by HB250 to ensure the elimination of internal stress and increase the strength of the spindle.
Bearing mounting bit surface high-frequency processing, improve mo resistance, etc.;
C) bow material: spring steel belt;
D) wire parts on the twisted bow: porcelain eyes;
E) main engine bearing: Japan NSK is mainly used.