Ga toun Para Mahagbong

Create an illustration showing various types of gears and their mechanisms in a technical, educational style, emphasizing interlocking teeth and motions.

Gear Mechanisms Quiz

Test your knowledge on the intricate details of gear mechanisms with our comprehensive quiz! Discover the technical terms and principles that govern the transmission of motion through gears and enhance your understanding of mechanical elements.

76 engaging questions
Perfect for engineering students and enthusiasts
Challenge yourself and learn more about gears

76 Questions19 MinutesCreated by TurningGear2023

are machine elements that transmit motion by means of successively engaging teeth.

Have toothed elements that are straight and parallel to the shaft axis and they are used to transmit motion and power without slippage between parallel shafts.

Height of tooth above pitch circle or the distance between the pitch circle and the top of the tooth.

� the circle that bounds the outer ends of the teeth

Arc of the pitch circle through which a tooth travels from the first point of contact with the mating tooth to the point where the contact ceases

Arc of the circle through which a tooth travels from the point of contact with the mating tooth to the pitch point.

� arc of the pitch circle through which a tooth travels from its contact with the mating tooth at the pitch point to the point where the contact ceases.

In a pair of gears it is the plane that contains the two axes, in a single gear, it may be any plane containing the axis and the given point.

The amount by which the width of a tooth space exceeds the thickness of the engaging tooth on the pitch circles.

The circle from which an involute tooth is generated or developed

The angle, at the base cylinder if an involute gear, that the tooth makes with the gear axis

In an involute gear it is the pitch on the base circle or along the line of action.

� is the base pitch in the normal plane.

Is the base pitch in the axial plane.

the distance between the parallel axes of spur gears and parallel helical gears, or between the crossed axes of helical gears and worm gears. Also it is the distance between the centers of the pitch circles.

In a worm gear this is the plane perpendicular to the gear axis and contains the common perpendicular of the gear and the worm axes.

The height from the top of the tooth to the chord subtending the circular-thickness arc.

Length of the chord subtended by the circular thickness arc (the dimension obtained when a gear tooth caliper is used to measure the thickness at the pitch circle.

length of the arc of the pitch circle between the centers or other corresponding points of adjacent teeth

Is the circular pitch in the normal plane.

the length of the arc between the two sides of a gear tooth, on the pitch circles unless otherwise specified.

Is the circular thickness in the normal plane

the amount by which the dedendum exceeds the addendum of the mating tooth. It is also the radial distance between the top of a tooth and the bottoms of the mating tooth space.

The smallest diameter on a gear tooth with which the mating gear makes contact.

The ratio of the arc of action to the circular pitch. It is sometimes thought of as the average number of teeth in contact. For involute gears, the contact ratio is obtain most directly as the ratio of the length of action to the base pitch.

The curved formed by the path of a point on a circle as it rolls along a straight line. When this circle rolls along the outer side of another circle, the curve is called an Epicycloid; When it rolls along the inner side of another circle it is called a Hypocycloid.

The depth of tooth space below the pitch circle or the radial dimension between the pitch circle and the bottoms of the tooth space

The ratio of the number of teeth to the number of millimeters of pitch diameter

Is the diametral pitch as calculated in the normal plane and is equal to the diametral pitch divided by the cosine of helix angle

That portion of the face width that actually comes into contact with mating teeth, as occasionally one member of a pair of gears may have a greater face width than the other

� the actual torque ratio of a gear set divided by its gear ratio

A gear with teeth on the outer cylindrical surface

that surface of the tooth which is between the pitch circle to the top of the tooth

the length of the teeth in axial plane.

the concave portion of the tooth profile where it joins the bottom of the tooth space. The approximate radius of this curve is called the fillet radius.

that surface which is between the pitch circle and the bottom land. The flank includes the fillet.

the effective face width of a helical gear divided by the gear axial pitch; also called the Face Overlap

The angle that a helical gear tooth makes the gear axis

The largest diameter on a spur gear at which a single tooth is in contact with the mating gear.

The diameter of a circle coinciding with the tops of the teeth on an internal gear

A gear with teeth on the inner cylindrical surface

The curved formed by the path of a point on a straight line, called the generatrix, as it rolls along a convex base curve. This curve is generally used as the profile of gear teeth

The top land is the top surface of the tooth, and Bottom land is the surface of the gear between the fillets of adjacent teeth

the distance a helical gear or worm would thread along its axis one revolution of it were free to move axially.

The distance on an involute line of action through which the point of contact moves during the action of the tooth profile.

the path of contact in involute gears. It is the straight line passign through the pitch point and the tangent to the base circles.

The smallest diameter on a spur gear at which a single tooth of one gear is in contact with its mating gear

The ratio of pitch diameter in millimeter to the number of teeth. English module is the ratio of the pitch diameter in inches to the number of teeth

A plane normal to the tooth surface at a point of contact, and perpendicular to the pitch plane.

The diameter of the outside circle.

the distance between similar, equally spaced tooth surfaces, in a given direction and along a given curve or line

A circle the radius of which is equal to the distance from the gear axis to the pitch point

The diameter of the pitch circle.

in a pair of gears it is the plane perpendicular to the axial plane and tangent to the pitch surfaces

this is the point of tangency of two pitch circles and is on the line of center

The surface of the rolling cylinder that the gear may be considered to replace.

� any plane perpendicular to a gear axis.

The angle between the tooth profile and a radical line at its pitch point. In involute teeth, the angle between the line of action and the line tangent to the pitch circle.

These are a pitch plane, axial plane, and transverse plane, all intersecting at a point and mutually perpendicular.

Ratio of the numbers of teeth on mating gears

The angle subtended at the center of a base circle from the origin of an involute to the point of tangency of the generatrix from any point on the same involute.

A circle coinciding with or tangent to the bottoms of the tooth spaces

diameter of the root circle.

A plane tangent to the tooth surfaces at a point or line of contact of material is removed near the tip of the gear tooth.

an arbitrary modification of a tooth profile whereby a small amount of material is removed near the tip of the gear tooth

� the width of tooth measured along the pitch circle

The space between the teeth measured along the pitch circle

The actual width dimension of a gear blank

� a plane perpendicular to the axial plane and to the pitch plane

The curve formed by the path of a point on the extension of a circle as it rolls along the curve or line. It is also the curve formed by the path of a point on a perpendicular to a straight line as the straight line rolls along the convex side of a base curve.

The smallest diameter on the tooth at which the involute exits. Usually this is the point of tangency of the involute tooth profile and the fillet curve. This usually referred to as the TIP diameter.

A condition in generated gear teeth when any part of the fillet curve lies inside a line drawn tangent to teh working profile at its lowest point.

The total depth of a tooth space, equal to addendum plus dedendum, also equal to working depth plus clearance

The depth of engagement of two gears, that is, the sum of their addendums.

Is the smaller gear of the two mating gears.

S have their teeth cut parallel to their shafts like spur gears, but they are cut on the inside of the gear blank. An internal gear meshes an external gear, the rotation will be in the same direction.

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