日本电产伺服公司成立于1949年，原名叫日本伺服公司，后在2008年和日本电产集团合并后改名叫日本电产伺服有限公司。该司一直以来都是以生产小型电机为主，产品包括步进电机、直流电机、交流电机、风扇与鼓风机等。产品在各行各业都被广泛应用，尤其是办公室设备、工业设备、医疗设备及分析仪器等方面更被普遍采用。步进电机的型号有：KH39EM2-801 KH39FM2-801 KH39GM2-801 KH42HM2-901  KH42HM2-911 KH42HM2-902  KH42HM2-912 KH42HM2-903 KH42HM2-913
KH42JM2-901 KH42JM2-911 KH42JM2-902 KH42JM2-912  KH42JM2-903 KH42JM2-913  KH42KM2-901 KH42KM2-911 KH4234-B90101
KH4238-B90101 KH4238-B90201 KH4242-B90101 KH4242-B90201 KH4248-B90101 KH4254-B90101 KA50HM1-501 KA50HM1-502
KA50JM1-501 KA50JM1-502 KA50KM1-501 KA50KM1-502 KA50HM2-501 KA50HM2-502 KA50JM2-501 KA50JM2-502 KA50KM2-501
KA50KM2-502 KH56JM2-901  KH56JM2-911 KH56JM2-902 KH56JM2-912 KH56JM2-903 KH56JM2-913 KH56KM2-901 KH56KM2-911
KH56KM2-902 KH56KM2-912 KH56KM2-903 KH56KM2-913 KH56QM2-901 KH56QM2-911 KH56QM2-902  KH56QM2-912 KH56QM2-903
KH56QM2-913 KA60HM2-501 KA60HM2-502 KA60JM2-501 KA60JM2-502 KA60KM2-501 KA60KM2-502