Gear Wheel

Gear wheel:

SST gear wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion.

We offer standard or non standard products which you need.

We also produce to drawing.

We use materials such as quenched and tempered steel(40cr, 20crmnti, C45) stainless steel, grey cast iron, other metals, aluminium,nd plastics.

We also make case harden, blacken, painted surface treatment.

Module: 0.5,1,1.5,2,2.5,3,3.5,4,5,6,7,8,9

Pitch:8,10,12,16,20,24,32

The term for the size of a gear tooth is modulus

M1, M3, M8... Are called modulo 1, modulo 3, modulo 8. Modulus is a universal title in the world. The symbol m (modulus) and the number (mm) are used to represent the size of gear teeth. The larger the number, the larger the gear teeth.

In addition, in countries using English units (such as the United States), symbols (diametral pitch) and numbers (the number of teeth of a gear when the pitch circle diameter is 1 inch) are used to represent the size of the teeth. For example: dp24, dp8, etc. There are also special appellation methods that use symbols (pitch) and numbers (mm) to represent the size of gear teeth, such as cp5 and CP10.

The pitch (P)  for gear wheel can be obtained by multiplying the module by the PI. The pitch is the length between two adjacent teeth.

The pressure angle of gear wheel is the angle between the radius line and the tangent line of the tooth profile at a point on the tooth surface (generally referred to as a node). As shown in the figure, α Is the pressure angle. because α'=α, therefore α' It is also the pressure angle.

The engagement of gear pairs of parallel shafts and intersecting shafts is basically rolling, and the relative sliding is very small, so the efficiency is high. The cross axis helical gear, worm gear and other cross axis gear pairs achieve power transmission by rotating through relative sliding, so the friction has a great impact and the transmission efficiency is reduced compared with other gears. The efficiency of gears is the transmission efficiency of gears under normal assembly conditions. If the installation is incorrect, especially when the bevel gear assembly distance is incorrect, resulting in errors at the intersection with the bevel gear, its efficiency will be significantly reduced.

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