SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

Introduced: September 1968

Description

F16C covers shafts, bearings, pivots, and rotary support elements that enable mechanical power transmission and rotation in machinery. The class encompasses rigid and flexible shafts, crankshaft components, pivotal connections, and all bearing types designed to support rotational or oscillating motion. Notably excluded are gearing, couplings, clutches, and brakes, which fall under separate classifications despite their role in power transmission systems. This subclass forms the structural foundation for rotating machinery across industrial, automotive, and mechanical engineering applications.

Title

Titles differ between systems:

IPC: SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS

CPC: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

Full Title

Full titles differ between systems:

IPC:

SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS

CPC:

SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

CPC subdivides this area 2x more granularly than IPC with 31 additional codes.

31 codes are CPC-only extensions.

Note: 31 CPC extensions are marked as secondary classification only.

17 shared codes have differing titles between IPC and CPC.

Child Classifications

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F16C 1/00 Flexible shafts (flexible shafts in dental machines for boring or cutting A61C1/18); Mechanical means for transmitting movement in a flexible sheathing IPC+CPC Available in IPC and CPC
F16C 11/00 Pivots; Pivotal connections (arrangements of steering linkage connections B62D7/16) IPC+CPC Available in IPC and CPC
F16C 13/00 Rolls, drums, discs, or the like (guide rollers in feeding webs B65H27/00; calender rolls, bearings therefor D21G1/02; rotary drums or rollers for heat-exchange or heat-transfer apparatus F28F5/02); Bearings or mountings therefor +2 CPC IPC+CPC Available in IPC and CPC
F16C 15/00 Construction of rotary bodies to resist centrifugal force (flywheels, correction weights F16F15/30, F16F15/32) IPC+CPC Available in IPC and CPC
F16C 17/00 Sliding-contact bearings for exclusively rotary movement (F16C32/06 takes precedence; adjustable bearings F16C23/00, F16C25/00) IPC+CPC Available in IPC and CPC
F16C 19/00 Bearings with rolling contact, for exclusively rotary movement (adjustable bearings F16C23/00, F16C25/00 ) IPC+CPC Available in IPC and CPC
F16C 21/00 Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement (F16C17/24, F16C19/52 take precedence) +1 CPC IPC+CPC Available in IPC and CPC
F16C 2202/00 Solid materials defined by their properties 2nd only +8 CPC CPC only CPC only
F16C 2204/00 Metallic materials; Alloys (alloys in general C22C; F16C2206/00 takes precedence) 2nd only +10 CPC CPC only CPC only
F16C 2206/00 Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents 2nd only +3 CPC CPC only CPC only
F16C 2208/00 Plastics; Synthetic resins, e.g. rubbers 2nd only +4 CPC CPC only CPC only
F16C 2210/00 Fluids 2nd only +3 CPC CPC only CPC only
F16C 2212/00 Natural materials, i.e. based on animal or plant products such as leather, wood or cotton or extracted therefrom, e.g. lignin 2nd only +2 CPC CPC only CPC only
F16C 2220/00 Shaping 2nd only +7 CPC CPC only CPC only
F16C 2223/00 Surface treatments; Hardening; Coating 2nd only +3 CPC CPC only CPC only
F16C 2226/00 Joining parts; Fastening; Assembling or mounting parts 2nd only +3 CPC CPC only CPC only
F16C 2229/00 Setting preload 2nd only CPC only CPC only
F16C 2231/00 Running-in; Initial operation 2nd only CPC only CPC only
F16C 2233/00 Monitoring condition, e.g. temperature, load, vibration 2nd only CPC only CPC only
F16C 2235/00 Cleaning 2nd only CPC only CPC only