Liftmaster garage door openers 144c56 chain cable idler pulley black.
Spring pulley garage door.
Two p528 springs one on each side of the door can handle a 105 lbs.
Heavy duty garage door 3 pulley kits 3 8 bore 200lb load rating kits including 2 stationary pulleys and 2 rear wheel pulleys with clevis fork 2 bolts 3 8 16 x 2 long and 2 serrated flange nuts 4 9 out of 5 stars 20.
4 7 out of 5 stars 52.
The pulleys are steel wheels or drums that the cables are wrapped around.
The cables simply transfer the force of the springs to help carry the weight of the door whether it s opening or closing.
Please install safety cables on your extension spring door 6 rivets in each heavy duty ball bearing pulley included in this kit.
Dura lift 0 225 in x 2 in left and right wound 2 pack red steel garage door torsion spring.
Heavy duty garage door pulley 4 5 0 out of 5 stars 1.
For pricing and availability.
Once in place disconnect the garage door opener.
Usually the ball bearings break down causing the pulley to scrape against the track angle or the rivets fail and the pulley splits as in the picture above causing the door cable to stick.
Garage door extension spring pulley sheave kit safety cables instructions.
Extension spring pulley replacement one major cause of failure for garage doors using extension springs is that the pulleys wear out.
All standard sectional garage doors use systems of pulleys cables and springs of either type.
Plug end extension spring is a holmes spring replacement for heavier 1 piece tilt up canopy style garage doors.
4 4 out of 5 stars 563.
Door with an initial tension of 165 lbs.
2 3 stud pulleys 2 3 clevis pulleys 4 3 8 bolts 4 3 8 nuts 4 3 8 lock washers 1 pair 1 8 door cable 1 pair 1 8 safety cable 2 cable lacing brackets 2 s hooks 2 5 16 eye bolts 4 5 16 nuts.
Open the garage door to remove all spring tension and clamp it in place.
Plug end extension spring is a p528 28 in.