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🛠️ Small Size, Big Impact: Bearings That Keep Your Gear Turning Smoothly
The uxcell MR63ZZ is a set of 20 miniature deep groove ball bearings sized 3mm x 6mm x 2.5mm, made from durable chrome steel with double steel shields to prevent dirt ingress. Designed for high-speed, low-friction operation with excellent resistance to heat and wear, these bearings handle radial and moderate axial loads, making them ideal for precision applications like cycling headset parts and compact mechanical assemblies.
| Bearing Number | MR63ZZ |
| Brand | uxcell |
| Item Thickness | 2.5 Millimeters |
| Item Weight | 7 Grams |
| Item dimensions L x W x H | 5.51 x 3.94 x 0.39 inches |
| Material | Alloy Steel |
A**R
Quick and accurate.
Best ever.
R**K
Great little bearings...
I use them as part of internal hinges for laser finger boxes. 2mm stainless shafts fit perfectly and rotate just right, with no slop. Exactly why I purchased them.
S**R
MR52ZZ(2mm ID) Great Little bearings. Tight tolerances. Little under 2mm ID. Rusted with moisture.
I bought these for an RC Boat project to use on the output of the drive shaft. These are not stainless and rusted after the first use. They continued to work after breaking the rust free so no problem for me. Will buy stainless next time. Spun up to 25,000 RPM with no noise or vibrations of any kind. Amazing little bearings.
P**N
They work!
So tiny! The inside diameter fits a toothpick. Perfect for what I'm doing.
R**C
Bearings
press fit for 2mm shaft
M**G
Work well.
These work perfectly for my project.
A**T
Beware, bearing ID is not correct
All 20 are unusable. Bearing ID is off, should be 3mm but all measure 2.85mm. Bought to use with a 3mm shaft, but undersized for a bearing. Pressing shaft in locks up the bearing.
R**O
Tal cual está en la descripción funciona perfectamente
F**D
Sehr gute Qualität und es passt alles was beschrieben ist , ist halt ein Markenprodukt was passt.
C**Y
Item as per description. Prompt delivery. Good transaction.
R**O
Spedizione velocissima Germania - centro Italia neanche 48 ore , perfetto !!
I**H
The same if not better and definitely lower cost.
K**G
Ich verwende sie um meine Lego-Züge mit Kugellagern auszustatten. Sie passen perfekt und haben den richtigen Durchmesser!
Trustpilot
2 months ago
5 days ago