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>BSI Standards >43 ROAD VEHICLE ENGINEERING>43.150 Cycles>BS 6102-9:1990 Cycles Specification for screw threads used in bottom bracket assemblies
immediate downloadReleased: 1990-11-30
BS 6102-9:1990 Cycles Specification for screw threads used in bottom bracket assemblies

BS 6102-9:1990

Cycles Specification for screw threads used in bottom bracket assemblies

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Standard number:BS 6102-9:1990
Pages:12
Released:1990-11-30
ISBN:0 580 19111 7
Status:Standard
DESCRIPTION

BS 6102-9:1990


This standard BS 6102-9:1990 Cycles is classified in these ICS categories:
  • 43.150 Cycles

This International Standard specifies the thread profile and limits and tolerances for the screw threads used to assemble bottom bracket cups to bottom brackets on bicycles (adjustable cups with right-hand thread, fixed cups with left-hand thread). It is based on

  1. the use of the ISO basic thread profile given in ISO 68;
  2. satisfactory interchangeability with the corresponding British Standard Cycle (B.S.C.) thread; this has required the use of an inch pitch (t.p.i.);
  3. the use of screw thread tolerance grades and tolerance positions given in ISO 965-1;
  4. the use of gauges made to ISO 1502.

Specifies the thread profile and limits and tolerances for the screw threads used to assemble bottom cups to bottom brackets on bicycles (adjustable cups with right hand thread, fixed cups with left hand thread).
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