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OEM Sprockets
Definition: a toothed wheel shaped mechanical part meshed with a chain.
Calculation formula of sprocket parameters:
Indexing circle diameter: D = P / sin180 ° / Z P = pitch, refer to table z = number of teeth
Addendum circle (outer diameter): D = P × (0.54+cot180°/z)
Common sprocket pitch and popular appellation
3 / 8 = 9.525 (3 points) 1 / 2 = 12.7 (4 points) 5 / 8 = 15.875 (5 points) 3 / 4 = 19.05 (6 points)
Graduation circle diameter: D = P / sin (180 ° / z)
Diameter of addendum circle: Dmax = D + 1.25p-d1
dmin=d+(1-1.6/z)p-d1
Diameter of tooth root circle: DF = d-d1 note: P chain pitch, Z number of sprocket teeth, D1 chain roller diameter
Sprocket model: including non-standard sprocket (customized according to customer drawings), standard sprocket (American Standard and Metric).
Common materials of sprocket: C45. Common processing methods of sprocket: quenching treatment and surface blackening treatment.
OEM Sprockets
Definition: a toothed wheel shaped mechanical part meshed with a chain.
Calculation formula of sprocket parameters:
Indexing circle diameter: D = P / sin180 ° / Z P = pitch, refer to table z = number of teeth
Addendum circle (outer diameter): D = P × (0.54+cot180°/z)
Common sprocket pitch and popular appellation
3 / 8 = 9.525 (3 points) 1 / 2 = 12.7 (4 points) 5 / 8 = 15.875 (5 points) 3 / 4 = 19.05 (6 points)
Graduation circle diameter: D = P / sin (180 ° / z)
Diameter of addendum circle: Dmax = D + 1.25p-d1
dmin=d+(1-1.6/z)p-d1
Diameter of tooth root circle: DF = d-d1 note: P chain pitch, Z number of sprocket teeth, D1 chain roller diameter
Sprocket model: including non-standard sprocket (customized according to customer drawings), standard sprocket (American Standard and Metric).
Common materials of sprocket: C45. Common processing methods of sprocket: quenching treatment and surface blackening treatment.
