ISO - ICS Category: 21 - Mechanical Systems and Components for General Use


ICS Number ICS Category
21.200 Gears
21.100.10 Plain bearings
21.100.20 Rolling bearings
21.060.20 Nuts
21.060.10 Bolts- screws- studs
21.060.40 Rivets
21.060.30 Washers- locking elements
21.060.01 Fasteners in general
21.220.30 Chain drives and their components
21.120.40 Balancing and balancing machines
21.220.10 Belt drives and their components
21.160 Springs
21.060.50 Pins- nails
21.120.30 Keys and keyways- splines
21.040.30 Special screw threads
21.040.10 Metric screw threads
21.100.01 Bearings in general
21.040.20 Inch screw threads
21.020 Characteristics and design of machines- apparatus- equipment
21.140 Seals- glands
21.120.20 Couplings
21.120.10 Shafts
21.040.01 Screw threads in general
21.060.60 Rings- bushes- sleeves- collars
21.240 Rotary-reciprocating mechanisms and their parts