The vast majority of garage doors that rely on torsion springs use oil tempered torsion springs by default largely due to their cost and abundant availability.
Oil tempered garage door spring.
The spring wires heat and then bathe in hot oil.
Still these springs are nice because they keep their tension and rarely ever need to be tightened.
The difference is that class ii has higher tensile ranges than class i in the same wire size.
They have been on the market for a very long time and are the torsion springs most garage doors utilize.
Oil tempered garage door springs undergo a unique process to increase their tensile strength without introducing brittleness into the metal.
Simply put oiled torsion.
Oil tempered springs commonly referred as the classic make this type of garage door spings have been with us for years and are the most common types of springs.
Oil tempered torsion springs offer several unique advantages.
For example torsion springs used for garage doors lift and lower garage doors that weigh hundreds of pounds.
The wire which is used to make the spring is heated quenched in oil and then heated again.
Oil tempered springs are then heat treated with a series of heating and cooling phases using hot oil so that they can adequately handle the infrequent stress applications applied to them whenever the door is opened or closed.
Historically the garage door industry used torsion springs made of oil tempered wire that conformed to astm 229 standards which detail among other things tensile strength ranges by wire size.
Oil tempered springs for both garage door.
Oil tempered wire mechanical springs and garage door springs are often called upon to do serious heavy lifting.
This wire falls into two categories.
Oil tempered springs have been around for a very long time and they are the most common springs on a garage door.
Class i and class ii.
Oil tempered torsion springs are what we call the classic make for garage doors.
What they are and their pros and cons.
These springs however have one downfall.
Well to give you an idea about these two types of garage door springs here is oil tempered versus zinc galvanized torsion spring.
Their name derives from the way they are made.
It s not uncommon for an oil tempered spring under heavy constant use to outlast its zinc galvanized counterpart by a considerable margin.
High durability oil tempered torsion springs are well known for their exceptional durability.
First the spring is brought to a high temperature before being quenched in an oil bath.
After the heating process the oil is slowly cooled to temper the metal.
The foremost reason that so many prefer oil tempered springs is durability.