Standard No.:	JB/T 9746.1-1999
English Name:	Marine gearboxes. Specifications
Chinese Name:	船用齿轮箱 技术条件
Chinese Classification:	J91    Internal combustion engine and auxiliary equipment
Professional Classification:	JB    Professional Standard - Machinery
Source Content Issued by:	National Technical Committee on Internal Combustion Engine Standardization
Issued on:	1999-09-17
Implemented on:	2000-1-1
Status:	superseded
Superseded by:	JB/T 9746.1-2011 Marine gearboxes—Part 1：Specifications
Superseded on:	2011-11-1
Abolished on:	2011-11-01
Superseding:	NJ 336-1984
Target Language:	English
File Format:	PDF
Word Count:	7500 words
Translation Price(USD):	450.0
Delivery:	via email in 1~3 business day

JB/T 9746.1-1999 本标准是对 NJ 336-84《船用齿轮箱 技术条件》的修订，增加了带排扭矩、噪声、清洁度和可靠性考核指标，并将机械效率改为空载功率损耗率。 本标准规定了齿轮船用箱及其变形产品的技术要求，试验方法，检验规则，标志、包装和贮存。 本标准适用于主要结构形式为多片湿式摩擦离合器、圆柱齿轮传动，具有倒顺、离合、减速功能的齿轮箱。对于尚无合适标准的其他类型齿轮箱或装置可参照本标准。 本标准于 1984 年首次发布。