Garage door rollers are the wheels that move along the tracks to enable the garage door to open. They are held in place by brackets which, in turn, are attached to the garage door. The stem of the roller fits into the bracket sleeve whilst the roller fits into the track.The rollers move along set tracks, lifting the door evenly and in alignment. This extends the life of both your garage door and your garage door motor. If the garage door rollers are moving easily, there is less resistance when the door opens and closes.
Garage door roller in track

Garage door roller in track

Garage door rollers

Choosing Garage Door Rollers

Rollers can be made of steel or nylon. We always use the nylon garage door rollers because they:
  • Are less noisy
  • Last longer
  • Enable the garage door to move more smoothly
Garage door rollers come in different sizes. The size depends on:
  • The diameter of the roller
  • Length of the stem.
Place a ruler across the face of the roller to measure the diameter. To get the stem length, measure from the end to up to the point of the roller.The roller must fit the size of the garage door track and the stem must be of sufficient length to be held tightly in the bracket.Before choosing rollers, one needs to know the weight of the door. The rollers must be strong enough to lift that weight. When choosing garage rollers, one looks at theĀ  “number of kg per roller”. They also have an expected life span e.g. 10,000 cycles. The average residential garage door will need about 10 rollers, with larger residential doors using up to 12 rollers.The rollers that we use have ball bearings. The bearings in a roller distributes the weight it is carrying. Therefore, the more bearings, the roller has, the less friction it will experience when moving. So, as number of of ball bearings increases, the roller will move smoother and quieter.
Garage door roller with bearings

When do I need to Replace my Garage Door Rollers?

Garage door rollers get louder and louder as they become worn. You must lubricate the rollers regularly, otherwise the ball bearings will start to create pits in the metal. The door will start to feel jaggered when opened and closed manually. The rollers will start to make a clicking sound that is like a train on a railroad.If you do not replace the rollers timely, other parts of the garage door will start taking strain and become damaged and worn out. Your garage door motor will suffer the most and could not last as long as expected.Eventually the bearings will fail altogether and the roller will not move properly in the track at all. Another problem that occurs with rollers is when the the rollers go off-track.
Garage door rollers with failed bearings

Garage door rollers with failed bearings