On the sides of the door, and attached to the hinges, are garage door rollers. These are circular and contain ball bearings. Any exposed ball bearings need to be lubricated. Since it can be difficult to get inside the rollers, some formulas of grease come with thin tool attachments for this work. Sep 14, 2020
On the sides of the door, and attached to the hinges, are garage door rollers. These are circular and contain ball bearings. Any exposed ball bearings need to be lubricated. Since it can be difficult to get inside the rollers, some formulas of grease come with thin tool attachments for this work. Sep 14, 2020
The Chamberlain Group is the parent company to LiftMaster, which is their �Professional� brand sold to independent dealers. The Chamberlain brand is their �DIY� line of garage door openers that are sold in home stores and online. The Craftsman line was sold through Sears until Sears went bankrupt in 2018. Oct 21, 2015