Sprockets is often classified into common sprockets, HK sprockets and also other sprockets.
one. Typical sprocket
Normal sprockets are ANSI sprockets which may be engaged with normal series roller chains. See P125 for dimensions.
There are two sorts of tooth profiles: U-tooth and S-tooth.
2. HK sprocket
HK sprockets might be engaged with HK series roller chains, and individuals for single strand chains are identical to typical sprockets. Even so, sprockets for multiple strand chains are diverse from standard sprockets in sprocket tooth profile.
three. Other sprockets
Other sprockets are intended in accordance to your following calculation formulas to suit respective specialty chains.
The sprockets applied to the following chains will be the same since the typical sprockets in tooth gap type, but various in tooth thickness (sprocket tooth profile).
four. Calculation of sprocket dimensions
The dimensions of standard sprockets along with other basic sprockets are calculated as follows. Initially, the diameters of sprockets are calculated from your following calculation formulas.
Subsequent, sprocket tooth profile (the shape of your tooth determined by its thickness) is calculated from your following calculation formulas. (The values proven during the following pages have been calculated by these formulas and regarded as the typical values.)
Calculation formulas for diameters and tooth gap forms Calculation formulas for diameters
Calculation of pitch diameter, tip diameter and caliper diameter
The basic dimensions of a sprocket appropriate to get a chain pitch of one mm are respectively known as pitch diameter aspect, tip diameter element and caliper diameter issue. The respective variables for respective numbers of teeth are listed below. If these aspects are multiplied by chain pitch, the essential dimensions of the corresponding sprocket could be obtained.
Instance:
Within the situation of 80 (25.forty mm pitch) with 35 teeth Pitch diameter (Dp) = P×Pitch diameter component
Calculation formulas for tooth gap varieties
As the most rational tooth gap kinds during which the strain angle modifications in response for the elongation of the smoothly rotated roller chain together with the lapse of support time, ANSI specify two types of tooth profiles: U-type and S-type. Usually, S-type tooth profiles are adopted in accordance with ANSI, and our regular sprockets also have S-tooth profiles.