Dimensions of Sprocket

Sprockets is often classified into conventional sprockets, HK sprockets as well as other sprockets.
1. Typical sprocket
Typical sprockets are ANSI sprockets which could be engaged with normal series roller chains. See P125 for dimensions.
There are two sorts of tooth profiles: U-tooth and S-tooth.
two. HK sprocket
HK sprockets might be engaged with HK series roller chains, and individuals for single strand chains are identical to standard sprockets. Nevertheless, sprockets for various strand chains are diverse from common sprockets in sprocket tooth profile.
three. Other sprockets
Other sprockets are created in accordance towards the following calculation formulas to suit respective specialty chains.
The sprockets used for your following chains will be the exact same as the normal sprockets in tooth gap type, but diverse in tooth thickness (sprocket tooth profile).
4. Calculation of sprocket dimensions
The dimensions of conventional sprockets along with other general sprockets are calculated as follows. To start with, the diameters of sprockets are calculated from your following calculation formulas.
Up coming, sprocket tooth profile (the form on the tooth according to its thickness) is calculated from your following calculation formulas. (The values proven while in the following pages had been calculated by these formulas and regarded as the standard values.)
Calculation formulas for diameters and tooth gap kinds Calculation formulas for diameters
Calculation of pitch diameter, tip diameter and caliper diameter
The basic dimensions of a sprocket appropriate for a chain pitch of one mm are respectively known as pitch diameter aspect, tip diameter component and caliper diameter element. The respective variables for respective numbers of teeth are listed beneath. If these components are multiplied by chain pitch, the essential dimensions of the corresponding sprocket might be obtained.
In the case of 80 (25.40 mm pitch) with 35 teeth Pitch diameter (Dp) = P×Pitch diameter aspect
Calculation formulas for tooth gap kinds
As the most rational tooth gap forms by which the stress angle modifications in response to your elongation of a smoothly rotated roller chain with all the lapse of support time, ANSI specify two kinds of tooth profiles: U-type and S-type. Generally, S-type tooth profiles are adopted in accordance with ANSI, and our standard sprockets also have S-tooth profiles.


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