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Engineering > Mechanical systems and components

Mechanical systems and components

Mechanical systems and components Sub-categories (13)

  1. Characteristics and design of machines, apparatus, equipment
  2. Screw threads
  3. Fasteners
  4. Hinges, eyelets and other articulated joints
  5. Bearings
  6. Shafts and couplings
  7. Seals, glands
  8. Springs
  9. Housings, enclosures, other machine parts
  10. Gears
  11. Flexible drives and transmissions
  12. Rotary-reciprocating mechanisms
  13. Lubrication systems

Latest standards activities

Proposals
Drafts

BS EN ISO 1891-2

Fasteners — Terminology — Part 2: Vocabulary and definitions for coatings

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22/10/2025

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Published

BS EN ISO 22705-3:2025

Springs. Measurement and test parameters. Cold formed cylindrical helical torsion springs

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BS EN ISO 22705-2:2025

Springs. Measurement and test parameters. Cold formed cylindrical helical extension springs

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BS ISO 21433:2025

Plain bearings. Handling of plain bearings

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BS EN ISO 22705-1:2025

Springs. Measurement and test parameters. Part 1: Cold formed cylindrical helical compression springs (ISO 22705-1:2021)

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BS EN ISO 13670:2025

Fasteners. Reverse-taper grooved pins. One quarter-length progressive grooves on both sides

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BS ISO 2903-2:2025

ISO metric trapezoidal screw threads. Tolerances. Limits of sizes

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BS ISO 965-6:2025

ISO general purpose metric screw threads. Tolerances. Limits of sizes for internal and external threads (fine and medium tolerance qualities, first and second choices)

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BS ISO 23509-1:2025

Bevel and hypoid gear geometry. Basic methods

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