Mechanical gear processing transmission parts steel gear processing custom

Overview

product introduce

Common spur gear specifications

Overview

Gear is a mechanical part with teeth that can mesh with each other. It is widely used in mechanical transmission and the whole mechanical field. Modern gear technology has reached: gear modulus 0.004 ~ 100 mm; Gear diameter from 1 mm to 150 meters; Transmission power up to 100,000 kilowatts; Speed up to hundreds of thousands of RPM; The highest circumferential speed is 300 m/s.

Some technical terms

Teeth -- each raised part of a gear used for meshing. In general, these bumps are radially arranged. The teeth of paired gears are in contact with each other, resulting in continuous meshing of gears.

Groove ─ the space in a gear between two adjacent teeth.

End face ─ the plane perpendicular to the axis of a cylindrical gear or worm on a cylindrical gear or worm.

Normal surface -- In gears, normal surface is the plane perpendicular to the tooth line.

Apex circle ─ the circle where the tip of the tooth is located.

Root circle ─ the circle where the bottom of the groove is located.

Base circle ─ a circle on which an involute line is formed and on which a pure roll is made.

Indexing circle ── reference circle for calculating gear geometry in the end face. For spur gears, the modulus and pressure Angle on the indexing circle are standard values.

Tooth surface ─ the side surface of the tooth between the top and root cylinders.

Profile ─ the line at which the tooth surface is cut by a specified surface (plane for cylindrical gears).

Tooth line ─ intersection line between tooth surface and indexing cylinder surface.

End pitch PT -- the dividing arc length between the same end profile of two adjacent teeth.

Modulus m - the quotient of pitch divided by PI, in millimeters.

Pitch P -- Reciprocal of modulus, in inches.

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