... A, B, C, D, E, 3L, 4L and 5L SectionTop width (mm)Thickness (mm)Length range (mm)AngleM106360~270040°A138356~600040 ... °B1711533~1300040°C2214800~1500040°D32191800~1500040°E38231800~1500040° Narrow V-BeltsNarrow v-belt has double power transmission capacity of ... : SPZ, SPA, SPB, SPC, 3V, 5V and 8V SectionTop width (mm)Thickness (mm)Length range (mm)AngleSPZ108375~381040°SPA1310647~1000040 ...