how to fix mouse scroll wheel makes a grinding noise
Jul 21, 2025 am 02:05 AM
There are three solutions to the friction sound of the mouse roller: one is to clean up the dust and debris in the gaps of the roller, use a toothpick to roll a cotton swab or compressed air to remove dirt, and add silicon-based lubricating oil if necessary; the second is to check the wear of the roller itself. If abnormal noise is caused by aging, slipping or deformation, a new roller assembly needs to be replaced; the third is to check whether the encoder is in poor contact, wipe the metal contacts with an alcohol cotton pad to restore conductivity, and pay attention to avoid damaging the components during operation.
The friction sound of the mouse wheel is basically a common problem after using it for a long time. It's not a big problem, but it sounds really annoying and affects the user experience. The point is to find the source of noise and then clean or replace the parts.
1. Clean up dust and debris in the gaps in the rollers
In most cases, the roller stutters and makes a noise due to accumulation of dust or crumbs wrapped around the roller shaft or the internal encoder. Especially when you have used a mouse for several months or even longer, these places are prone to hiding dirt.
You can try to use a toothpick to roll the cotton swab and gently penetrate into the gaps on both sides of the roller and turn it a few times to bring out the dirty things. You can also spray it with compressed air, which will have a more thorough effect. If it is a mouse with a loose mechanical structure, it can even see small particles falling out by shaking it slightly.
If it is really not clean, or the roller has obviously become astringent, you can consider dropping one or two drops of lubricating oil (such as silicon-based lubricant), and be careful not to use oil such as engine oil that will corrode the plastic.
2. Check the wear of the roller itself
Some mouse rollers are made of rubber or plastic, which will age, slip or even deform over time. If you find that the roller is not rotating smoothly enough and even feels like "crying", it may be a problem with the roller itself.
In this case, cleaning does not have much effect, so you can only replace it with a new roller assembly. Replacement parts can sometimes be purchased on Taobao, Pinduoduo or the official brand website. Users with strong hands-on ability can disassemble the mouse to see the status of the scroll wheel and confirm whether they need to be replaced.
3. Check if the encoder has poor contact
The rotation recognition of the roller depends on a small component called the "encoder", which judges the scrolling direction and number of times through the dial and sensor. Over time, the encoder surface may oxidize or accumulate dust, causing unstable signal and also produce friction-like sounds.
You can gently wipe the metal contact portion on the encoder with an alcohol sheet to restore conductivity. Be careful not to break the pins when operating. If you are not familiar with electronic components, it is recommended to search for video tutorials to follow.
Basically, these common reasons and solutions are all about them. Not particularly complicated, but easily overlooked. When you encounter abnormal scroll wheel sound, start with the simplest cleaning, and then check it in depth if you don’t.
The above is the detailed content of how to fix mouse scroll wheel makes a grinding noise. For more information, please follow other related articles on the PHP Chinese website!
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