harmonic drives Archives - Page 3 of 14

Gearbox WPS Series

By admin | September 22, 2024

Gearbox WPS Series,WPS Series Worm Gear – adalah jenis gearbox industri yang dirancang untuk memberikan kinerja yang optimal dan daya tahan yang tinggi. Dikenal dengan keandalannya, gearbox ini banyak digunakan dalam berbagai aplikasi industri, mulai dari permesinan hingga otomatisasi. Keunggulan Gearbox WPS Series: Aplikasi: “Butuh gearbox yang handal dan tahan lama untuk aplikasi industri Anda?…

Gearbox WPS Series1 phase motor , 3 horsepower motor , 3 hp motor , 3 phase electric motors , 3 phase electrical motor , 3 phase induction motor , 3 phase motor , 3.0 hp motor , 3phase motors , ac motor , agen cycloid gear guomao , asynchronous motor , belt motor , bevel gear , bldc electric motor , brake motor , brushless bldc motor , brushless motor bldc , cap run motor , capacitor start capacitor , crane motor , cycloid guomao , cycloidal gear reducer , cycloidal reducers , cycloidal speed reducer , cylindrical gear reducer , dc motor dc motor , dc motor with brake , drive of motor , driven gear , elc motors , electric electric motor , electric engine , electric machine , electric motor and , electric motor dc motor , electric motor gearbox , electric motor motor , electric motor parts , electric motors near me , electrical motor , equipment heavy equipment , gear and shaft , gear boxes , gear drive , gear hypoid , gear in motor , gear motor , gear motor gear motor , gear motor gearbox , gear motor reducer , gear on shaft , gear reducer , gear reducer motor , gear reducers , gear reduction box , gear reduction unit , gear shaft , gear wheel , gear worm motor , gear worm wheel , gearbox 3 , gearbox belt , gearbox bevel , gearbox drive , gearbox planetary gear , gearbox reducer , gearbox speed reducer , gearbox wheel , Gearbox WPS Series , geared motor , gears and shafts , gears gear , harmonic drives , Heavy equipment , heavy equipment and machinery , heavy equipment equipment , heavy equipment machine , helical gear , helicoidal gear , high torque gear reducer , hypoid gear , induction drive motor , induction machines , induction motor , industrial motors , industrial reducer , industrial tools , machine and tools , machine tools , mini motor , motor and gear , motor and gear reducer , motor and reducer , motor capacitor , motor drive , motor electric dc , motor electric motor , motor gear motor , motor gearbox , motor reducer , motor run capacitor , motor servo motor , motor small motor , motor speed reducer , motor start capacitor , motor with gearbox , motorized drive , motors drives , planetary drive , planetary gear drives , planetary gearbox , planetary gearboxes , planetary transmission , pump motors , reduced noise , reducer gear , reducer gear motor , reducer speed , reducing gear box , rotary phase , rotor frequency drive , rv gears , shaft and gear , single phase motor , small electric motor , small motors , speed reducer , spur gear , squirrel cage motor , start capacitor , start capacitor run capacitor , tefc motor , three phase electrical motor , three phase motor , transmission gears , transmission reducer , used equipment , vibration motor , worm and gear , worm and wheel , worm and wheel gear , worm and worm gear , worm and worm gears , worm drive , worm gear , worm gear and motor , worm gear and worm wheel , worm gear gearbox , worm gear motor , worm gear worm wheel , worm wheel gear , worm worm gear

Gearbox WPO Series

By admin | September 22, 2024

Gearbox WPO Series,WPO Series Worm Gear – adalah jenis gearbox industri yang dirancang untuk memberikan kinerja yang optimal dan daya tahan yang tinggi. Dikenal dengan keandalannya, gearbox ini banyak digunakan dalam berbagai aplikasi industri, mulai dari permesinan hingga otomatisasi. Keunggulan Gearbox WPO Series: Aplikasi: “Butuh gearbox yang handal dan tahan lama untuk aplikasi industri Anda?…

Gearbox WPO Series1 phase motor , 240 volt motor , 3 horsepower motor , 3 hp motor , 3 phase electric motors , 3 phase electrical motor , 3 phase induction motor , 3 phase motor , 3.0 hp motor , 3phase motors , 5 5kw motor , 55kw motor , ac motor , agen cycloid gear guomao , asynchronous motor , belt motor , bevel gear , bldc electric motor , brake and motor , brake motor , brushless bldc motor , brushless motor bldc , cap run motor , capacitor start capacitor , conveyor brake , crane motor , crane motor brake , cycloid guomao , cycloidal gear reducer , cycloidal reducers , cycloidal speed reducer , cylindrical gear reducer , dc motor dc motor , dc motor with brake , drive of motor , driven gear , elc motors , electric electric motor , electric engine , electric machine , electric motor and , electric motor dc motor , electric motor gearbox , electric motor motor , electric motor parts , electric motors near me , electrical motor , equipment heavy equipment , gear and shaft , gear boxes , gear drive , gear hypoid , gear in motor , gear motor , gear motor gear motor , gear motor gearbox , gear motor reducer , gear on shaft , gear reducer , gear reducer motor , gear reducers , gear reduction box , gear reduction unit , gear shaft , gear wheel , gear worm motor , gear worm wheel , gearbox 3 , gearbox belt , gearbox bevel , gearbox drive , gearbox planetary gear , gearbox reducer , gearbox speed reducer , gearbox wheel , Gearbox WPO Series , geared motor , gears and shafts , gears gear , harmonic drives , Heavy equipment , heavy equipment and machinery , heavy equipment equipment , heavy equipment machine , helical gear , helicoidal gear , high torque gear reducer , hypoid gear , induction drive motor , induction machines , induction motor , industrial motor brake , industrial motors , industrial reducer , industrial tools , machine and tools , machine tools , mini motor , motor 60hz , motor and gear , motor and gear reducer , motor and reducer , motor capacitor , motor drive , motor electric dc , motor electric motor , motor gear motor , motor gearbox , motor reducer , motor run capacitor , motor servo motor , motor small motor , motor speed reducer , motor start capacitor , motor with gearbox , motorized drive , motors drives , phase motor , planetary drive , planetary gear drives , planetary gearbox , planetary gearboxes , planetary transmission , pump motors , reduced noise , reducer gear , reducer gear motor , reducer speed , reducing gear box , rotary phase , rotor frequency drive , rv gears , shaft and gear , single phase motor , small electric motor , small motors , speed reducer , spur gear , squirrel cage motor , start capacitor , start capacitor run capacitor , tefc motor , three phase brake motor , three phase electrical motor , three phase motor , transmission gears , transmission reducer , used equipment , vibration motor , worm and gear , worm and wheel , worm and wheel gear , worm and worm gear , worm and worm gears , worm drive , worm gear , worm gear and motor , worm gear and worm wheel , worm gear gearbox , worm gear motor , worm gear worm wheel , worm wheel gear , worm worm gear

Gearbox WPA Series

By admin | September 22, 2024

Gearbox WPA Series,WPA Series Worm Gear – adalah jenis gearbox industri yang dirancang untuk memberikan kinerja yang optimal dan daya tahan yang tinggi. Dikenal dengan keandalannya, gearbox ini banyak digunakan dalam berbagai aplikasi industri, mulai dari permesinan hingga otomatisasi. Keunggulan Gearbox WPA Series: Aplikasi: “Butuh gearbox yang handal dan tahan lama untuk aplikasi industri Anda?…

Gearbox WPA Series1 phase motor , 240 volt motor , 3 horsepower motor , 3 hp motor , 3 phase electric motors , 3 phase electrical motor , 3 phase induction motor , 3 phase motor , 3.0 hp motor , 3phase motors , 5 5kw motor , 55kw motor , ac motor , agen cycloid gear guomao , asynchronous motor , belt motor , bevel gear , bldc electric motor , brake and motor , brake motor , brushless bldc motor , brushless motor bldc , cap run motor , capacitor start capacitor , conveyor brake , crane motor , crane motor brake , cycloid guomao , cylindrical gear reducer , dc motor dc motor , dc motor with brake , drive of motor , driven gear , elc motors , electric electric motor , electric engine , electric machine , electric motor and , electric motor dc motor , electric motor gearbox , electric motor motor , electric motor parts , electric motors near me , electrical motor , equipment heavy equipment , gear and shaft , gear boxes , gear drive , gear hypoid , gear in motor , gear motor , gear motor gear motor , gear motor gearbox , gear on shaft , gear reducer , gear reducers , gear reduction box , gear shaft , gear wheel , gear worm motor , gear worm wheel , gearbox 3 , gearbox belt , gearbox bevel , gearbox drive , gearbox planetary gear , gearbox reducer , gearbox wheel , Gearbox WPA Series , geared motor , gears and shafts , gears gear , harmonic drives , Heavy equipment , heavy equipment and machinery , heavy equipment equipment , heavy equipment machine , helical gear , helicoidal gear , hypoid gear , induction drive motor , induction machines , induction motor , industrial motor brake , industrial motors , industrial reducer , industrial tools , machine and tools , machine tools , motor 60hz , motor and gear , motor capacitor , motor drive , motor electric dc , motor electric motor , motor gear motor , motor gearbox , motor run capacitor , motor servo motor , motor small motor , motor start capacitor , motor with gearbox , motorized drive , motors drives , phase motor , planetary drive , planetary gear drives , planetary gearbox , planetary gearboxes , planetary transmission , pump motors , reduced noise , reducer gear , reducing gear box , rotary phase , rotor frequency drive , rv gears , shaft and gear , single phase motor , small electric motor , small motors , speed reducer , spur gear , squirrel cage motor , start capacitor , start capacitor run capacitor , tefc motor , three phase brake motor , three phase electrical motor , three phase motor , transmission gears , transmission reducer , used equipment , vibration motor , worm and gear , worm and wheel , worm and wheel gear , worm and worm gear , worm and worm gears , worm drive , worm gear , worm gear and motor , worm gear and worm wheel , worm gear gearbox , worm gear motor , worm gear worm wheel , worm wheel gear , worm worm gear

Alliance Motori A-Y3H Series

By admin | September 22, 2024

Alliance A-Y3H Series,A-Y3H Series Heavy Duty Range – IE1, IE2 – adalah motor listrik industri kelas berat yang dirancang untuk memberikan kinerja yang sangat handal dan efisien. Dengan sertifikasi IE1 dan IE2, motor ini menjamin efisiensi energi yang tinggi serta memenuhi standar industri yang ketat. Keunggulan Utama: Aplikasi: Motor Alliance A-Y3A Series sangat cocok untuk…

Alliance A-Y3H Series1 phase motor , 240 volt motor , 3 horsepower motor , 3 hp motor , 3 phase electric motors , 3 phase electrical motor , 3 phase induction motor , 3 phase motor , 3.0 hp motor , 3phase motors , 5 5kw motor , 55kw motor , ac motor , Alliance A-Y3H Series , asynchronous motor , belt motor , bevel gear , bldc electric motor , brake and motor , brake motor , brushless bldc motor , brushless motor bldc , cap run motor , capacitor start capacitor , conveyor brake , crane motor , crane motor brake , dc motor with brake , drive of motor , driven gear , elc motors , electric electric motor , electric engine , electric machine , electric motor and , electric motor motor , electric motor parts , electric motors near me , electrical motor , equipment heavy equipment , gear boxes , gear in motor , gear motor gear motor , gear wheel , gearbox 3 , gearbox bevel , gearbox wheel , gears gear , harmonic drives , Heavy equipment , heavy equipment and machinery , heavy equipment equipment , heavy equipment machine , helical gear , induction drive motor , induction machines , induction motor , industrial motor brake , industrial motors , industrial tools , machine and tools , machine tools , mini motor , motor 60hz , motor and gear , motor capacitor , motor drive , motor electric motor , motor gear motor , motor run capacitor , motor small motor , motor start capacitor , motor with gearbox , motorized drive , motors drives , phase motor , planetary gearbox , pump motors , reduced noise , rotary phase , rotor frequency drive , single phase motor , small electric motor , small motors , spur gear , squirrel cage motor , start capacitor , start capacitor run capacitor , tefc motor , three phase brake motor , three phase electrical motor , three phase motor , transmission gears , used equipment , vibration motor , worm and gear , worm and worm gears , worm drive , worm gear

Alliance Motori A-Y3E Series

By admin | September 22, 2024

Alliance A-Y3E Series,A-Y3E Series adalah motor listrik tiga fasa yang dirancang khusus untuk memberikan kinerja optimal dan efisiensi tinggi. Dengan desain inovatif dan konstruksi yang kokoh, motor ini menjadi pilihan ideal untuk berbagai aplikasi industri. Keunggulan Utama: Aplikasi: Motor Alliance A-Y3E Series sangat cocok untuk berbagai aplikasi, seperti: “Ingin meningkatkan efisiensi produksi Anda? Motor listrik…

Alliance A-Y3E Series1 phase motor , 3 horsepower motor , 3 hp motor , 3 phase electric motors , 3 phase electrical motor , 3 phase induction motor , 3 phase motor , 3.0 hp motor , 3phase motors , ac motor , Alliance A-Y3E Series , asynchronous motor , bldc electric motor , brushless bldc motor , brushless motor bldc , cap run motor , capacitor start capacitor , dc motor dc motor , drive of motor , driven gear , elc motors , electric electric motor , electric engine , electric machine , electric motor and , electric motor dc motor , electric motor motor , electric motor parts , electric motors motor electric motor , electric motors near me , electrical motor , gear boxes , gear wheel , gearbox 3 , gearbox wheel , gears gear , harmonic drives , induction drive motor , induction machines , induction motor , industrial motors , mini motor , motor capacitor , motor drive , motor electric dc , motor run capacitor , motor small motor , motor start capacitor , motor with gearbox , motorized drive , motors drives , planetary gearbox , pump motors , rotary phase , rotor frequency drive , single phase motor , small electric motor , small motors , spur gear , squirrel cage motor , start capacitor , start capacitor run capacitor , three phase electrical motor , three phase motor , transmission gears

Alliance Motori A-Y3A Series

By admin | September 22, 2024

Alliance A-Y3A Series,A-Y3A Series – adalah motor listrik tiga fasa yang dirancang khusus untuk memberikan kinerja optimal dan efisiensi tinggi. Dengan desain inovatif dan konstruksi yang kokoh, motor ini menjadi pilihan ideal untuk berbagai aplikasi industri. Keunggulan Utama: Aplikasi: Motor Alliance A-Y3A Series sangat cocok untuk berbagai aplikasi, seperti: “Ingin meningkatkan efisiensi produksi Anda? Motor…

Alliance A-Y3A Series1 phase motor , 3 phase electric motors , 3phase motors , ac motor , Alliance A-Y3A Series , bldc electric motor , brushless bldc motor , brushless motor bldc , cap run motor , capacitor start capacitor , dc motor dc motor , drive of motor , driven gear , elc motors , electric electric motor , electric motor and , electric motor dc motor , electric motor motor , electric motor parts , electric motors near me , gear boxes , gear on shaft , gear reducer , gear reducers , gear wheel , gear worm motor , gearbox 3 , gearbox reducer , gearbox wheel , gears gear , harmonic drives , induction drive motor , induction machines , induction motor , industrial motors , mini motor , motor capacitor , motor electric dc , motor electric motor , motor gearbox , motor run capacitor , motor small motor , motor start capacitor , motor with gearbox , motorized drive , motors drives , planetary gearbox , rotor frequency drive , rv gears , single phase motor , small electric motor , small motors , speed reducer , spur gear , squirrel cage motor , start capacitor , start capacitor run capacitor , transmission gears , worm gear and motor , worm gear motor

Alliance Motori A-YL Series

By admin | September 22, 2024

Alliance A-YL Series,A-YL Series Single Phase Asynchronous Motor – adalah pilihan yang sangat baik untuk berbagai aplikasi industri maupun rumah tangga. Dikenal dengan keandalan dan efisiensi tinggi, motor ini dirancang untuk memberikan kinerja optimal dalam jangka waktu yang lama. Fitur Unggulan: Motor listrik Alliance Electric A-YL Series cocok untuk berbagai aplikasi, seperti: “Butuh motor listrik…

Alliance A-YL Series1 phase motor , 3 phase electric motors , 3phase motors , ac motor , bevel gear , bldc electric motor , brushless bldc motor , brushless motor bldc , cap run motor , capacitor start capacitor , cycloidal reducers , dc motor dc motor , drive of motor , driven gear , elc motors , electric electric motor , electric motor and , electric motor dc motor , electric motor gearbox , electric motor motor , electric motor parts , electric motors near me , gear and shaft , gear boxes , gear hypoid , gear motor gear motor , gear motor gearbox , gear reducer , gear reducer motor , gear reducers , gear shaft , gear wheel , gear worm motor , gearbox 3 , gearbox belt , gearbox bevel , gearbox reducer , gearbox speed reducer , gearbox wheel , geared motor , gears and shafts , gears gear , harmonic drives , helical gear , high torque gear reducer , hypoid gear , induction drive motor , induction machines , induction motor , industrial motors , mini motor , motor and reducer , motor capacitor , motor electric dc , motor electric motor , motor gear motor , motor gearbox , motor reducer , motor run capacitor , motor small motor , motor speed reducer , motor start capacitor , motor with gearbox , motorized drive , motors drives , planetary gearbox , reducer gear , rotor frequency drive , rv gears , single phase motor , small electric motor , small motors , speed reducer , spur gear , squirrel cage motor , start capacitor , start capacitor run capacitor , transmission gears , worm and wheel gear , worm and worm gear , worm gear , worm gear and motor , worm gear and worm wheel , worm gear gearbox , worm gear motor , worm wheel gear

Alliance UDL Series

By admin | September 22, 2024

Alliance UDL Series,Alliance UDL Series Worm Gear – adalah solusi presisi tinggi untuk berbagai kebutuhan transmisi daya. Dirancang dengan material berkualitas dan proses produksi modern, gear ini menawarkan keunggulan yang tak tertandingi di kelasnya. Keunggulan Utama: Aplikasi: Kunjungi toko kami sekarang juga dan dapatkan penawaran menarik untuk Alliance UDL Series Worm Gear! Tim ahli kami…

Alliance UDL Series3 phase electric motors , 3phase motors , ac motor , agen cycloid gear guomao , Alliance UDL Series , belt motor , bevel gear , bldc electric motor , brushless bldc motor , brushless motor bldc , cycloid guomao , cycloidal gear reducer , cycloidal reducers , cycloidal speed reducer , cylindrical gear reducer , dc motor dc motor , driven gear , elc motors , electric electric motor , electric motor and , electric motor dc motor , electric motor gearbox , electric motor motor , electric motor parts , electric motors near me , gear and shaft , gear boxes , gear drive , gear hypoid , gear motor , gear motor gear motor , gear motor gearbox , gear motor reducer , gear on shaft , gear reducer , gear reducer motor , gear reducers , gear reduction box , gear reduction unit , gear shaft , gear wheel , gear worm motor , gear worm wheel , gearbox 3 , gearbox belt , gearbox bevel , gearbox drive , gearbox planetary gear , gearbox reducer , gearbox speed reducer , gearbox wheel , geared motor , gears and shafts , gears gear , harmonic drives , helical gear , helicoidal gear , high torque gear reducer , hypoid gear , industrial reducer , mini motor , motor and gear , motor and gear reducer , motor and reducer , motor electric dc , motor electric motor , motor gear motor , motor gearbox , motor reducer , motor servo motor , motor speed reducer , motors drives , planetary drive , planetary gear drives , planetary gearbox , planetary gearboxes , planetary transmission , reducer gear , reducer gear motor , reducer speed , reducing gear box , rotor frequency drive , rv gears , shaft and gear , small electric motor , speed reducer , spur gear , transmission gears , transmission reducer , worm and wheel , worm and wheel gear , worm and worm gear , worm gear , worm gear and motor , worm gear and worm wheel , worm gear gearbox , worm gear motor , worm gear worm wheel , worm wheel gear , worm worm gear

Alliance RV-RV Series

By admin | September 22, 2024

Alliance RV-RV Series,RV-RV Series Worm Gear – adalah komponen transmisi daya yang dirancang dengan presisi tinggi untuk memberikan kinerja optimal dalam berbagai aplikasi industri. Gear jenis ini terkenal akan ketahanannya terhadap beban berat, efisiensi tinggi, dan umur pakai yang panjang. Keunggulan Utama: Aplikasi: Kunjungi toko kami sekarang juga dan dapatkan penawaran menarik untuk Alliance RV-RV…

Alliance RV-RV Series3 phase electric motors , 3phase motors , ac motor , agen cycloid gear guomao , belt motor , bevel gear , bldc electric motor , brushless bldc motor , brushless motor bldc , cycloid guomao , cycloidal gear reducer , cycloidal reducers , cycloidal speed reducer , cylindrical gear reducer , dc motor dc motor , driven gear , elc motors , electric electric motor , electric motor and , electric motor dc motor , electric motor gearbox , electric motor motor , electric motor parts , electric motors near me , gear and shaft , gear boxes , gear drive , gear hypoid , gear motor , gear motor gear motor , gear motor gearbox , gear motor reducer , gear on shaft , gear reducer , gear reducer motor , gear reducers , gear reduction box , gear reduction unit , gear shaft , gear wheel , gear worm motor , gear worm wheel , gearbox 3 , gearbox belt , gearbox bevel , gearbox drive , gearbox planetary gear , gearbox reducer , gearbox speed reducer , gearbox wheel , geared motor , gears and shafts , gears gear , harmonic drives , helical gear , helicoidal gear , high torque gear reducer , hypoid gear , industrial reducer , mini motor , motor and gear , motor and gear reducer , motor and reducer , motor electric dc , motor electric motor , motor gear motor , motor gearbox , motor reducer , motor servo motor , motor speed reducer , motors drives , planetary drive , planetary gear drives , planetary gearbox , planetary gearboxes , planetary transmission , reducer gear , reducer gear motor , reducer speed , reducing gear box , rotor frequency drive , rv gears , shaft and gear , small electric motor , speed reducer , spur gear , transmission gears , transmission reducer , worm and wheel , worm and wheel gear , worm and worm gear , worm gear , worm gear and motor , worm gear and worm wheel , worm gear gearbox , worm gear motor , worm gear worm wheel , worm wheel gear , worm worm gear

Alliance NRV Series

By admin | September 22, 2024

Alliance NRV Series,NVR Series Worm Gear – adalah komponen transmisi daya yang dirancang dengan presisi tinggi untuk memberikan kinerja optimal dalam berbagai aplikasi industri. Gear jenis ini terkenal akan ketahanannya terhadap beban berat, efisiensi tinggi, dan umur pakai yang panjang. Keunggulan Utama: Aplikasi: Kunjungi toko kami sekarang juga dan dapatkan penawaran menarik untuk Alliance NRV…

Alliance NRV Series3 phase electric motors , 3phase motors , ac motor , agen cycloid gear guomao , Alliance NRV Series , belt motor , bevel gear , bldc electric motor , brushless bldc motor , brushless motor bldc , cycloid guomao , cycloidal gear reducer , cycloidal reducers , cycloidal speed reducer , cylindrical gear reducer , dc motor dc motor , driven gear , elc motors , electric electric motor , electric motor and , electric motor dc motor , electric motor gearbox , electric motor motor , electric motor parts , electric motors near me , gear and shaft , gear boxes , gear drive , gear hypoid , gear motor , gear motor gear motor , gear motor gearbox , gear motor reducer , gear on shaft , gear reducer , gear reducer motor , gear reducers , gear reduction box , gear reduction unit , gear shaft , gear wheel , gear worm motor , gear worm wheel , gearbox 3 , gearbox belt , gearbox bevel , gearbox drive , gearbox planetary gear , gearbox reducer , gearbox speed reducer , gearbox wheel , geared motor , gears and shafts , gears gear , harmonic drives , helical gear , helicoidal gear , high torque gear reducer , hypoid gear , industrial reducer , mini motor , motor and gear , motor and gear reducer , motor and reducer , motor electric dc , motor electric motor , motor gear motor , motor gearbox , motor reducer , motor speed reducer , motors drives , NVR Series Worm Gear , planetary drive , planetary gear drives , planetary gearbox , planetary gearboxes , planetary transmission , reducer gear , reducer gear motor , reducer speed , reducing gear box , rotor frequency drive , rv gears , shaft and gear , small electric motor , speed reducer , spur gear , transmission gears , transmission reducer , worm and wheel , worm and wheel gear , worm and worm gear , worm gear , worm gear and motor , worm gear and worm wheel , worm gear gearbox , worm gear motor , worm gear worm wheel , worm wheel gear , worm worm gear

PT. CAKRA ADJI GUNUNG

Posts Tagged “harmonic drives”

Gearbox WPS Series

Gearbox WPO Series

Gearbox WPA Series

Alliance Motori A-Y3H Series

Alliance Motori A-Y3E Series

Alliance Motori A-Y3A Series

Alliance Motori A-YL Series

Alliance UDL Series

Alliance RV-RV Series

Alliance NRV Series