The change in the volume and shape of the workpiece during the quenching process is due to the volume expansion and contraction caused by the specific volume change during the structural transformation of the steel, and the plastic distortion caused by the heat treatment stress. Obviously, the specific volume change during the phase change in the heat-treated steel must exist.

A sprocket is a wheel with cog-type buckle teeth, which is used to mesh with a block with an accurate pitch on a link chain or a cable. It is widely used in mechanical transmission of chemical industry, textile machinery, escalator, wood processing, three-dimensional parking garage, agricultural machinery, food processing, instrumentation, petroleum and other industries.

Whether the layout of the sprocket transmission is reasonable has a great impact on the quality and service life of the transmission. When laying out, the two shafts of the chain drive should be parallel, and the two sprockets should be on the same plane. Generally, a horizontal or nearly horizontal layout should be adopted, with a loose bottom edge.

The tightness of the JIS sprocket should be appropriate. Too tight will increase power consumption and the bearings will wear out; too loose will easily jump and fall off the chain. Its tightness is: lifted or pressed down from its middle, about 2%-3% of the middle distance between two JIS sprockets.

For high-speed and heavy-duty gears, poor lubrication will cause local overheating of JIS sprocket on sales, resulting in discoloration, gluing and other malfunctions. There are many reasons why the lubrication is not good.

The OEM Sprockets company is a wheel with cog-type sprocket teeth that meshes with a block of precise pitch on a link or cable.

OEM Sprockets are wheels with cog-type sprocket teeth that are used to mesh with blocks of precise pitch on link links or cables.

The standard sprocket refers to Taper Bore Sprocket. It is a common part of a machine.

Various standard sprocket products

Double Single sprocket also plays a big role in food processing and textile industry. It is needed in the application of food production equipment, and it can drive the gear to rotate well.

The tooth profile of Simplex sprocket must ensure that the chain enters and exits the mesh smoothly and energy-savingly, minimizes the impact and contact stress of the chain link during meshing, and is easy to process.