2" Long Stem Steel Garage Door Roller
The standard garage door
roller has a wheel that is 1-3/4 inches in diameter. They are called 2
inch rollers because they are used in 2 inch tracks which is standard on
residential and most commercial garage doors. The 10-ball bearing
wheels make the rollers move smoothly through the tracks and have an
average life expectancy of 15,000 cycles.