Rail & Transit parts lists

Parts common across rail & transit 12

Shared components ranked by how many of the 99 products in this domain contain them, directly or inside a sub-assembly.

1. Fastener Set in 80 of 99 productsBolts, nuts, and washers.
2. Ball Bearing in 73 of 99 productsDeep-groove radial ball bearing.
3. Bare PCB in 59 of 99 productsUnpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
4. Microcontroller in 59 of 99 productsSingle-chip microcontroller combining a processor core, flash memory, RAM, and peripherals such as timers, ADCs, and serial ports to run the device's control firmware.
5. O-Ring Set in 56 of 99 productsSet of elastomer rings seated in grooves to seal static or slow-moving joints against fluid and gas, sized to ISO 3601.
6. Connector in 54 of 99 productsMating plug-and-socket pair that joins two lengths of wiring or a cable to a board so a circuit can be assembled, serviced, and separated without soldering.
7. Relay in 54 of 99 productsElectromechanical switch in which a small coil current closes or opens contacts rated for a much larger load, isolating control circuits from what they switch.
8. Pressure Sensor in 53 of 99 productsTransduces fluid or gas pressure into an electrical signal.
9. Helical Gear Pair in 52 of 99 productsTwo meshing helical gears forming one reduction stage that steps torque up and speed down between parallel shafts with quiet, continuous tooth contact.
10. Oil Seal in 52 of 99 productsSpring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760.
11. Coil Spring in 49 of 99 productsHelical spring of round steel wire that stores energy in compression or extension, used for suspension, return force, and preload.
12. Wire Bundle in 49 of 99 productsGroup of insulated conductors cut to length, terminated, and bound together to carry power and signals between the assemblies of a machine.