Morning,
Had customer call me up asking for a quote to modify a 40A 15 sprocket. Quantity is 50 pieces. Material is 1045 steel and black oxide finish. Supposedly only the teeth are hardened. Has a plain 1/2 center hole.
He wants a 3/4 inch hole with a keyway and two set screw holes 90 degrees from each other.
The OD of the sprockets are approximately 2.7 inches and are about .284 thick.
Opening up the hole to 3/4 inch and putting the keyway in seems straight forward enough. But I've never dealt with a thin sprocket. Especially without a hub. I'm concerned the hardening of the teeth extend down to the gullet where I will put the set screws.
How would you tackle this and what would you charge?
Had customer call me up asking for a quote to modify a 40A 15 sprocket. Quantity is 50 pieces. Material is 1045 steel and black oxide finish. Supposedly only the teeth are hardened. Has a plain 1/2 center hole.
He wants a 3/4 inch hole with a keyway and two set screw holes 90 degrees from each other.
The OD of the sprockets are approximately 2.7 inches and are about .284 thick.
Opening up the hole to 3/4 inch and putting the keyway in seems straight forward enough. But I've never dealt with a thin sprocket. Especially without a hub. I'm concerned the hardening of the teeth extend down to the gullet where I will put the set screws.
How would you tackle this and what would you charge?