This sprocket has 25 teeth
50BS43 1 3/8" Finished Bore Sprocket Dimensions
10B22 sprockets with a stock bore comes with the standard 16 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes
Our superior HCST207 bearing with a 12mm bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid cast-iron housing
6205-ZZ Ball Bearing Dimensions
BK55 Pulley 1/2" Bore 80B33 Sprockets This sprocket has 25 teethThis BK55 Pulley 1 2" bore is directly interchangeable with other manufacturers, is 5. 25" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. It works with belt sizes A, 4L, B, 5L, AX, BX, AA, and BB. What separates this BK55 pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory. Using the grade 35 cast iron offers a higher tensile