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See Chinese contents: JB/T 9050.1-2015 JB/T 9050.1-2015: Cylindrical reduction gear units. Part 1: General technical requirement
This Part of JB/T 9050 specifies the technical requirements, testing, inspection and marking, packaging and transportation of cylindrical gear reducers. This Part applies to single-stage, two-stage, three-stage and four-stage cylindrical gear reducers (hereinafter referred to as reducers) with a center distance ¦Á¡Ü1000 mm at the low-speed stage; and also applies to single-stage, two-stage and three-stage planetary gear reducers (hereinafter referred to as reducers) with planetary carrier radius R¡Ü300 mm at the low-speed stage.
