Bearings in Xiaomi electric scooter M365: complete analysis of types, faults and replacements

Xiaomi electric scooter M365 It's become a legend in urban transport -- compact, powerful and relatively inexpensive -- but like any technology with moving parts, it requires regular maintenance. Bearings are a part that many people forget until they encounter wheel backlash, extraneous noises, or increased resistance when driving. M365 "out of the box, how to diagnose, change and choose analogues - taking into account the experience of masters and feedback from owners.

Many people mistakenly think that bearings in a scooter are "eternal" or that replacing them is a complicated procedure that requires a professional tool. M365 You can do it yourself in 30 to 60 minutes, with a minimum set of keys and a drawer on hand, and the main thing is to know the nuances, from the types of bearings (front and rear wheels) to the correct selection of size and class of protection. We have gathered all the relevant information for 2026, including the exact bearing sizes for original and non-original wheels, as well as proven substitute brands.

If you notice that the scooter is starting to hum at speed, the wheel is lumping or slowing down when you're spinning, these are sure signs of bearing wear. Don't ignore them: timely replacement bearings will prolong the life of not only the wheels, but also the engine, and will save you money on more serious repairs.

What bearings are in Xiaomi M365 "box"?

The original Xiaomi M365 It is equipped with bearings of Chinese production, which have standard dimensions for scooters, but do not always meet the high requirements for durability. In the front and rear wheels, radial ball bearings of the closed type (with rubber seals) are used, but their characteristics differ:

✅ Front wheel:

• 🔄 Type: 6004-2RS (or 6004ZZ early)
• 📏 Dimensions: inner diameter 20 mm, outer 42 mm, width 12 mm
• 🛡️ Protection: double-sided rubber seals (2RS) metal-pad (ZZ)

✅ Rear wheel (engine-powered):

• 🔄 Type: 6005-2RS (modified — 6004-2RS, as in the front)
• 📏 Dimensions: internal diameter 25 mm, external 47 mm, width 12 mm
• 🔥 Feature: works in tandem with the engine, so experiences a large load and heat

It is important to understand that even in new scooters bearings may differ in brand and quality, for example, in batches 2020-2021, there were often C&U Group bearings or the C&U Group bearings. LYC, The quality of the original bearings is average: they are designed for 5-10 thousand km of mileage, but if you drive aggressively or bad roads can fail after 2-3 thousand km.

🔍 How to check the marking? Original bearings are usually marked with numbers (e.g., numerals, 6004-2RS), But they can be erased or hidden under an anthers. If there's no marking, measure the dimensions with a barbell or refer to the compatibility table below.

Bearing compatibility table for Xiaomi M365

So, to make sure you're not mistaken, we've put together a table with proven bearings. M365, M365 Pro and their clones (e.g. Ninebot) ES1/ES2):

⚠️ Attention: Bearings with metal shields (ZZ) cheaper, but worse protected from dust and moisture than rubber (2RS). For urban driving, it is better to pay for 2RS — They will last 2-3 times longer.

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If you buy bearings on AliExpress, look at the reviews from the photo — often sellers send bearings smaller or with backlash.

How to diagnose bearing wear: 5 signs

Bearings in Xiaomi M365 They wear out gradually, and many owners don't notice problems until the scooter starts to fall asleep:

• 🔊 Extraneous sounds: creaking, crunch or hum when the wheel is rotating (especially noticeable at speeds above 15 km / h).
• 🌀 Luft wheels: if you pull the wheel to the sides and feel free travel (more than 1 mm) - the bearing is broken.
• 🚲 Increased resistance: the wheel rotates tightly, the scooter "does not roll" even on a flat surface.
• 🔥 Overheating: after the trip, the bearing is hot (more than 60)°C) is a sign of lack of lubrication or deformation.
• 💨 Vibration: At high speed, the steering wheel or platform begins to tremble".

🔧 How to check the bearing yourself?

1. Lift the scooter so that the wheel hangs in the air.
2. Spread the wheel with your hand - it should rotate smoothly, without delay.
3. Pull the wheel to the sides (parallel to the axles) - backlash of more than 1 mm is unacceptable.
4. Listen to the sound: if you hear a crunch or grinding, the bearing is worn out.

⚠️ Note: If you ignore the wear of bearings, this will lead to:

• 🔧 Breakage of the wheel axis (especially important for the rear wheel with the engine).
• 🔋 Increased battery consumption (the scooter requires more energy to spin the "tight" wheel).
• 🚨 Emergency situation (jammed bearing can lock the wheel at speed).

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Step-by-step: how to replace bearings on Xiaomi M365

Replacement of bearings is one of the most frequent procedures in maintenance M365. If you've never done this, don't worry, with the tools and the patience, even a beginner can do it. You'll need to:

• 🔧 Set of hexagons (size 5 mm for the front wheel, 4 mm for the rear wheel).
• 🔨 Bearing detachment (or lap with mandrels).
• 🛠️ Hammer and wooden bar (for neat pressing).
• 🧴 Lubricant for bearings (e.g. Liqui Moly) LM 50).

🔹 Instructions for replacing the front bearing:

🔹 Instructions for replacing the rear bearing (with engine):

1. Unscrew 4 bolts of the wheel mounting (hexagon 4 mm).
2. Carefully remove the engine wheel without damaging the wire.
3. Press the old bearing with a removable or a clutch. Attention: don't hit the bearing with a hammer, use the mandrel!
4. Install a new bearing by lubricating it beforehand. For the rear wheel, it is better to use heat-resistant lubrication (for example, Castrol). LMX).
5. Put the wheel together, making sure there is no backlash.

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⚠️ Note: After replacing the bearings, be sure to check:

• 🌀 Lack of backlash in the wheel.
• 🔄 Smooth rotation (wheel must be rotated for at least 10 seconds after spinning).
• 🔌 Correctness of wire connection (for the rear wheel).

Top.-5 Mistakes in Replacement of Bearings (and How to Avoid Them)

Even experienced Xiaomi owners M365 Sometimes, you make mistakes that lead to repeated failure or accelerated wear of new bearings:

1. 🔨 Using a hammer without a mandrel: hitting the bearing directly deforms it and the seat. Solution: use a wooden bar or a special mandrel.
2. 🧴 Lack of lubrication: Many people put the bearings dry, which reduces their life by 2-3 times. Solution: use lithium or graphite lubricant.
3. 🌀 If the bearing is crooked, it will break quickly. Solution: press it evenly, checking the landing.
4. 🔧 Wrong size: Buy 6003 bearings instead of 6004 or vice versa Solution: always check the marking or measure with a rod.
5. 💦 Getting dirt: if you don't clean the landing site, the new bearing will quickly get dirty. Solution: wash the installation site with alcohol or gasoline.

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The most common reason for the rapid wear of new bearings is the lack of lubrication or its poor quality. Don't skimp on lubricants: good lubrication (for example, Mobil). XHP 222) will extend the life of the bearing by 3-5 times.

Which Bearings to Choose: Budget vs Premium

There are dozens of bearing options on the market for Xiaomi M365 — from unnamed Chinese for 100 rubles to premium SKF or NSK 1,000+. Which is the best choice? Let's look at the pros and cons of each segment:

💰 Budget bearings (100-300 rubles.):

• ✅ Pros: Low price, easy to find on AliExpress or local stores.
• ❌ Cons: short service life (1-3 thousand km), often backwater, low seal quality.
• 🏷️ Where to get: AliExpress, Chip and Deep, local cycling masters.

💎 Middle segment (400-800 rubles.):

• ✅ Pros: good balance price/quality, service life 5-10 thousand km.
• ✅ Examples of brands: Enduro, Koyo, FAG.
• 🛡️ Protection: high-quality seals, heat-resistant lubrication.

🏆 Premium segment (1000–2000 rubles.):

• ✅ Pros: service life 15-20 thousand km, minimum backlash, high protection from moisture.
• ✅ Examples of brands: SKF Explorer, NSK Premium, Timken.
• 🔧 For those who ride daily or in difficult conditions (rain, dust).

📊 Comparative table on durability:

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If you are riding on wet roads or in the rain, take bearings marked with the markings. 2RS (rubber seals) and further treat them with water-repellent lubricant (for example, CRC Marine Grease).

Where to buy bearings for Xiaomi M365: spot-tested

Where you buy bearings depends not only on their quality, but also on their compatibility with your scooter. Here are proven sources (2026):

• 🌍 AliExpress: ✅ Pros: low prices, a large selection. ❌ Cons: the risk of running into a fake, long delivery. 🔍 Tip: Look for sellers with a rating above 98% and reviews with photos.
• 🏬 Local shops: ✅ Pros: you can touch the product, there is no waiting for delivery. ❌ Cons: Prices are higher than online. 📍 Where to look: Cycling workshops, spare parts stores for scooters, Chip and Deep".
• 🛒 Specialized online shops: ✅ Pros: original parts, warranty, fast delivery. 🔗 Examples: ScooterHack, Ninebot Store, AliBaba (wholesale batches).

⚠️ Note: When buying, specify:

• 📦 Compatibility with Xiaomi M365 (squirt M365 Pro or Ninebot may not be suitable).
• 🔄 Refundability (AliExpress often sends bearings of the wrong size).
• 🛡️ Certificates (for premium brands) SKF or NSK).

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Best Price/Quality Option: Buying Enduro Bearings ABEC-5 Or Koyo in specialty stores (like ScooterHack) that are cheaper than the ones you're looking at. SKF, But they've been around for almost as long.

FAQ: Frequent questions about Xiaomi bearings M365