Garage Door Broken Sprocket

If it is the entire assembly you need just replace the assembly with your new one.

Garage door broken sprocket.

This sprocket is typically used on a soled keyed garage door shaft. Around this sprocket as well as the gear and sprocket at the motor. The springs on the garage door will eventually weaken putting stress on the bushing. As the bushing wears down on top of the unit the teeth of the gear will slowly grind down.

When used on tube shafts it is advisable to fill the tube shaft with a steel or wood dowel in the area of the sprocket and through bolt the sprocket. Lay the chain on the garage floor while you complete the repair. Slide the pulley toward the garage door until the chain is stretched tight then move it toward the motor until the middle of the chain touches the upper side of the chain arm. Sprocket is at the end of the opener rail closest to the garage door opening.

Can be used on tube shafts. This gear kit on amazon. Pull the chain off the motor unit sprocket and out of the chain spreader. Simply remove those for replacement.

Https amzn to 2uwvnkj i m working on a chain drive opener. This home depot guide will explain the cost to install garage doors and openers or replace existing ones so you can decide which options are best for your budget. Garage door installation and replacement costs may vary according to style and size. Another common cause for a loose chain could be the front sprocket breaking.

If it is just a gear you are replacing you should remove it after you have unbolted assembly and replace it with a new one by going in reverse order. Tighten the bolts on. Slide the outer trolley away from the inner trolley. They connect the motor to the chain or belt.

Drill through the sprocket and shaft and install a bolt hardened bolt if needed through the shaft. This video from sears partsdirect shows how to replace the gear and sprocket assembly on a chain drive garage door opener. If yours is a belt drive you need a kit like this https amzn to 2zqns. The gear and sprocket assembly dri.