Our UCHA207-23 bearing is dimensionally made to industry standards
10B11 sprockets with a stock bore comes with the standard 12 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes
Bearing Size: 6203-ZZ
Sheave Size: 1B5V66
and precision sprocket with 26 hardened teeth that is manufactured to accept a R1 bushing
2BK67 Pulley 1-1/8" Bore 08B Stainless Steel Hollow Pin Roller Chain Our UCHA207-23 bearing is dimensionallyThis 2BK67 Pulley 1 1 8" bore is directly interchangeable with other manufacturers v belt pulleys, it is 6. 45" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. double BK pulleys work with belt types A, 4L, B, 5L, AX, BX, AA, BB, double banded A, double banded B, and double banded BX cogged v belts. What separates this double 2BK67 pulley from the others is that it is made using a high grade 35 cast iron, is