|Name||1-1/2 in. Nickel-Plated Swivel Double Pulley||2-1/2 in. Zinc-Plated Swivel Utility Pulley||2 in. Zinc-Plated Swivel Eye Cable Block||Quick Connect for 6 AWG Wire|
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Yes, the 2-1/2 in. Zinc-Plated Swivel Utility Pulley is built to handle ropes up to 3/8in and the diameter of a 16 gauge extension cord is slightly less than 3/8in. This pulley has a removable sheave pin so the extension cord can be threaded through without removing the plug at the end of the cord.
Mine said 3/8 max. Hope that helps.
We do not understand the application being used in this question as a 3/8" rod in the groove where the 3/8" rope would go would not function like a pulling rope.
It does not have ball bearings. I smoothed the sides of the wheel and used WD40. The movement of the rope is very smooth. Arthur
Don’t know it needs to work for a 5/8 rope with room to spin
The pin is removable, but, why not get a double pulley instead?