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Work programme
  • 21 MECHANICAL SYSTEMS AND COMPONENTS FOR GENERAL USE

  • 21.020 Characteristics and design of machines

  • 21.040 Screw threads

  • 21.040.01 Screw threads in general

  • 21.040.10 Metric screw threads

  • 21.040.20 Inch screw threads

  • 21.040.30 Special screw threads

  • 21.060 Fasteners

  • 21.060.01 Fasteners in general

  • 21.060.10 Bolts

  • 21.060.20 Nuts

  • 21.060.30 Washers

  • 21.060.40 Rivets

  • 21.060.50 Pins

  • 21.060.60 Rings

  • 21.060.70 Clamps and staples

  • 21.060.99 Other fasteners

  • 21.080 Hinges

  • 21.100 Bearings

  • 21.100.01 Bearings in general

  • 21.100.10 Plain bearings

  • 21.100.20 Rolling bearings

  • 21.120 Shafts and couplings

  • 21.120.01 Shafts and couplings in general

  • 21.120.10 Shafts

  • 21.120.20 Couplings

  • 21.120.30 Keys and keyways

  • 21.120.40 Balancing and balancing machines

  • 21.120.99 Other standards related to shafts and couplings

  • 21.140 Seals

  • 21.160 Springs

  • 21.180 Housings

  • 21.200 Gears

  • 21.220 Flexible drives and transmissions

  • 21.220.01 Flexible drives and transmissions in general

  • 21.220.10 Belt drives and their components

  • 21.220.20 Cable or rope drives and their components

  • 21.220.30 Chain drives and their components

  • 21.220.99 Other flexible drives and transmissions

  • 21.240 Rotary-reciprocating mechanisms and their parts

  • 21.260 Lubrication systems

    •            Last updated: 12/6/2001