Dimensions of Sprocket

Sprockets could be classified into normal sprockets, HK sprockets and various sprockets.
1. Common sprocket
Conventional sprockets are ANSI sprockets which may be engaged with regular series roller chains. See P125 for dimensions.
There are two sorts of tooth profiles: U-tooth and S-tooth.
two. HK sprocket
HK sprockets is usually engaged with HK series roller chains, and people for single strand chains are identical to conventional sprockets. Even so, sprockets for several strand chains are diverse from regular sprockets in sprocket tooth profile.
3. Other sprockets
Other sprockets are created in accordance to your following calculation formulas to suit respective specialty chains.
The sprockets made use of to the following chains are the identical because the standard sprockets in tooth gap kind, but unique in tooth thickness (sprocket tooth profile).
4. Calculation of sprocket dimensions
The dimensions of typical sprockets together with other general sprockets are calculated as follows. Initially, the diameters of sprockets are calculated from your following calculation formulas.
Upcoming, sprocket tooth profile (the form in the tooth based upon its thickness) is calculated in the following calculation formulas. (The values shown during the following pages had been calculated by these formulas and thought to be the common 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 the sprocket ideal for any chain pitch of 1 mm are respectively called pitch diameter element, tip diameter component and caliper diameter aspect. The respective elements for respective numbers of teeth are listed below. If these aspects are multiplied by chain pitch, the essential dimensions of your corresponding sprocket could be obtained.
Within the situation of 80 (25.forty mm pitch) with 35 teeth Pitch diameter (Dp) = P×Pitch diameter aspect
Calculation formulas for tooth gap types
Since the most rational tooth gap types by which the stress angle modifications in response to your elongation of a smoothly rotated roller chain with the lapse of service time, ANSI specify two kinds of tooth profiles: U-type and S-type. On the whole, S-type tooth profiles are adopted in accordance with ANSI, and our typical sprockets also have S-tooth profiles.

June 2024