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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 ISO 21771-1

Cylindrical involute gears and gear pairs. Part 1: Concepts and geometry

Feedback closing date:

12/01/2026

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BS ISO 12090-1

Rolling bearings — Profiled rail guides for linear motion rolling bearings. Part 1: Boundary dimensions and tolerances for series 1, 2, 3, 6 and 7

Feedback closing date:

31/12/2025

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Feedback period expiring

BS ISO 12090-1

Rolling bearings — Profiled rail guides for linear motion rolling bearings. Part 1: Boundary dimensions and tolerances for series 1, 2, 3, 6 and 7

Feedback closing date:

31/12/2025

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Published

BS ISO 21771-2:2025

Cylindrical involute gears and gear pairs. Calculation and measurement of tooth thickness and backlash

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BS ISO 7148-1:2025

Plain bearings — Testing of the tribological behaviour of bearing materials. Testing of bearing metals

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BS EN 12080:2025

Railway applications. Axleboxes. Rolling bearings

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BS EN ISO 3506-7:2025

Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners. Flat washers with specified grades and property classes

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BS ISO 1813:2025

Belt drives. Electrical conductivity of antistatic belts: Characteristics and test methods

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BS ISO 4184:2025

Belt drives. Classical and narrow V-belts. Lengths in datum system

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BS ISO 31657-1:2025

Plain bearings. Hydrodynamic plain journal bearings under steady-state conditions. Calculation of multi-lobed and tilting pad journal bearings

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BS ISO 31657-2:2025

Plain bearings. Hydrodynamic plain journal bearings under steady-state conditions. Characteristic values for calculation of multilobed journal bearings

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