Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subclass
F16D

COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES

Introduced: September 1968

Last revised: July 1974

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
Subclass:
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES

Description

F16D encompasses mechanical devices that connect rotating shafts, control torque transmission, and dissipate rotational energy in machinery. This subclass covers rigid and flexible couplings, universal joints, clutches for engaging/disengaging drive trains, and braking systems that arrest or regulate motion. Applications span automotive transmissions, industrial machinery, power transmission equipment, and mechanical control systems. Adjacent classes F16C (bearing and lubrication) and F16G (springs) address related but distinct mechanical functions.

Scope Notes

Glossary: actuator actuators a component of a mechanism that causes movement of a motion-conveying component or motion-inhibiting component but does not itself directly convey or inhibit motion. brake brakes a mechanism with at least one component that is moved by an actuator to selectively or automatically engage or stop a member with respect to a stationary part. clutch clutches a mechanism with at least two relatively movable components that are selectively or automatically engaged with each other by control means, e.g. an actuator, to transmit mechanical power or convey motion from a first member to a second member or disengaged by control means to stop transmitting mechanical power or conveying motion. coupling for transmitting rotation couplings for transmitting rotation a mechanism that transmits torque or conveys rotary motion from a first shaft to a second shaft or other rotating member and that either does not include relatively moving components or, if it has relatively moving components, the components move without the use of control means. | Limiting references: Electrodynamic brake systems for vehicles in general Vehicle brake control systems Conjoint control of vehicle sub-units of different type or different function, e.g. when at least one sub-unit is a clutch or a brake Fluid gearings , , Combinations of fluid gearings with clutches or couplings Combinations of mechanical gearings with fluid clutches Differential gearings, e.g. with freewheels or other clutches Dynamo-electric brakes, e.g. of the Eddy-current hysteresis type Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect | Application references: Couplings . Couplings for metal-rolling mills Couplings for drilling rods Attachment of marine propellers on shafts Clutches . Clutches of harvesters or mowers for grass, cereals or other crops Clutches in dental machines for boring or cutting Clutches specially adapted for presses Arrangement or location of clutches in vehicles Arrangement or mounting of control devices for main transmission clutches in vehicles Cycle brakes controlled by back-pedalling Details of rotary fluid gearing of the hydrokinetic type Clutches for apparatus for transmitting or receiving coded digital information Brakes . Brakes of harvesters or mowers for grass, cereals or other crops Brakes for threshing machines Brakes for swings Brakes specially adapted for presses Braking devices for ribbon-feed devices in selective printing mechanisms Brakes peculiar to rail vehicles Braking mechanisms for hand carts Braking mechanisms for children's carriages or perambulators Braking mechanisms for animal-drawn vehicles Cycle brakes Braking devices for lifting or hoisting gear Brakes for electric motors, generators, or dynamo-electric converters

Related Keywords

BRAKE(S)CLUTCH(ES) for conveying mechanical motionCOUPLING(S) for conveying mechanical motionJOINTS or couplings for shaftspreventing OVERSTRAIN in couplings in general

45 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • F16D 123/00 Multiple operation forces
  • F16D 15/00 Clutches with wedging balls or rollers or with other wedgeable separate clutching members
  • F16D 17/00 Clutches in which the drive is transmitted solely by virtue of the eccentricity of the contacting surfaces of clutch members which fit one around the other
  • F16D 19/00 Clutches with mechanically-actuated clutching members not otherwise provided for
  • F16D 28/00 Electrically-actuated clutches
  • F16D 29/00 Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation