How Do Door Hinges Work

Trace the outline of the hinge on the doorframe.

How do door hinges work.

The quintessential traditional hinge it s composed of two pivoting plates whose interlocking fingers form a barrel and are held together by a pin. Butt hinges or mortise hinges are commonly found on residential doors. The other to the cabinet. Here s is a nifty squeaky clean hinge fix.

Generally used in sets of threes or fours they are mortised into both the door and frame and joined together with a pin. One plate is attached to the door. Butt hinges sometimes require a mortise in the door and or the cabinet to prevent an excessive gap. One specific model of self closing door hinges uses the friction caused by opening the door to pull a spring.

Take the hinges off the door and drill a hole in the spot you marked. Decide where you would like to install the hinges. The bearings make opening and closing a door consistently easier smoother and quieter. Mark the doorframe where you want the hinges to go.

A hinged door works on a force being applied to the free outer edge of the door pushing or pulling the door open allowing it to swing on its hinges up to 180 degrees to create an opening and allow people to pass through the doorway. A door hinges is a mechanical bearing that enables doors to pivot on one edge as they open and close allowing a limited rotation movement to the object was attached to. Open the door and make a mark on the inside of the standard hinge parts that hold the hinge pins and cannot be seen from the outside when the door is in the closed position. A pivot hinge allows a door to pivot from a single point at the top and bottom of the door.

Ball bearings are engineered to throw the knuckle weight against specially hardened steel raceways which ride on the bearing surfaces. Pivot hinges are different than butt hinges which are attached at the side of a door and have a pin. Pivot hinges are attached to the top and bottom of a door and to the head of the frame and the floor. In the image below the casing for a ball bearing assembly is highlighted.

This requires clearance space behind the door to allow it to swing open freely. I ve been unable to find a clear explanation of the design principle behind a ball bearing door hinge. Door hinges contains two plates or leaves joined by a pin about which both plates are liberal to turn. And pivot hinges allow a door to swing in either direction.

This spring uncoils as the door is opened and when you let go the spring closes the door by pulling back to its natural state. Visit your local hardware store and discuss the best hinges to purchase with a sales associate. Use a tap to thread the hole with a thread to match the setscrews that you have purchased.