The Approx dimensions of a 1 inch×18 Chain Sprocket are typically as follows:

Sprocket Diameter: 158.9 mm

Boss Diameter: 100 mm

Teeth Pitch: 1″

Attech Chain:16B-1

Number Of Teeth: 18 Nos.

The Approx dimensions of a 1 inch×21 Chain Sprocket are typically as follows:

Sprocket Diameter: 183.1 mm

Boss Diameter: 100 mm

Teeth Pitch: 1″

Attech Chain:16B-1

Number Of Teeth: 21 Nos.

The Approx dimensions of a 1 inch×22 Chain Sprocket are typically as follows:

Sprocket Diameter: 191.1 mm

Boss Diameter: 100 mm

Teeth Pitch: 1″

Attech Chain:16B-1

Number Of Teeth: 22 Nos.

The Approx dimensions of a 1 inch×25 Chain Sprocket are typically as follows:

Sprocket Diameter: 215.3 mm

Boss Diameter: 100 mm

Teeth Pitch: 1″

Attech Chain:16B-1

Number Of Teeth: 25 Nos.