XXH型标准皮带宽400(101.6mm)规格齿数形状节径外径WLKX轮毂直径内孔透孔外径档边外径档边内径档边型号18XXH18B/W181.91178.87121140111-12028-198140F-5019814019XXH19B/W192.02188.97121140111-12028-208140F-5020814020XXH20B/W202.13199.08121140111-13028-208150F-5020815021XXH21B/W212.23209.19121140111-13028-229160F-5023917022XXH22B/W222.34219.29121140111-13028-239170 24XXH24B/W242.55239.51211401114515028190---25XXH25B/W252.66249.611211401114515028199---26XXH26B/W