You're viewing caster wheel SKU W-1240-SYB-1-1/4 on CasterConnection.com.
For the extra tough jobs requiring protective polyurethane treads, these top-of-the-line Superlast wheels are a great choice.
The extra-thick (1") blue treads (hardness of 90-95 Shore A) are liquid cast and chemically bonded to solid-web, drop forged steel centers.
. This wheel includes a Roller Bearing with a caster hub length of 4-1/4".