BS 4687:1984

National foreword
Committees responsible
Specification
0 Introduction
1 Scope and field of application
2 References
3 Transmission chains
4 Chain wheels (sprockets)
5 Conveyor chains
Annex
   Pitch circle diameter
Tables
1 Chain dimensions, measuring loads and tensile loads
   of extended pitch transmission chains (metric units)
2 Chain dimensions, measuring loads and tensile loads
   of extended pitch transmission chains (inch-pound
   units)
3 Dimensions, measuring loads and tensile loads of
   extended pitch chains suitable for conveyor work
   (metric units)
4 Dimensions, measuring loads and tensile loads of
   extended pitch chains suitable for conveyor work
   (inch-pound units)
5 Dimensions of K attachment plates
Figures
1 Transmission chain
2 Types of links
3 Symbols for tables 1 to 4
4 Diametral dimensions and tooth shape
5 Measuring pin size
6 Conveyor chain
7 K attachment plates (symbols for table 5)

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.