BS 4687:1984被替代
Specification for extended pitch precision roller chains and chainwheels
出版：British Standards Institution
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基本信息
标准编号： BS 4687:1984
发布时间：1984/6/29 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：20
标准简介
Dimensions and tolerances, chain measuring loads and minimum tensile strength and recommended marking requirements. Also dimension of chainwheels and attachments. Derived from some short pitch transmission roller chains in BS 228 but with twice the pitch intended for less onerous conditions in terms of speed and power transmitted. Applies to simple (single strand) extended chains only.
标准备注
© British Standards Institution 2013
替代本标准的新标准
