CNBTR 8mm ID 12mm OD 3.5mm Thickness Bearing Steel Mini Groove Ball Bearings DIY Industry MR128ZZ Pack of 10
Details
- BrandCNBTR
- MaterialAlloy Steel
- Item Weight12 Grams
- Bearing NumberMR128ZZ
- Item Thickness3.5
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Description
⚙️ Elevate your DIY game with precision that keeps you ahead!
- BUILT TO LAST - Crafted from high-grade bearing steel ensuring wear resistance and long-lasting durability.
- BULK PACK ADVANTAGE - Set of 10 bearings to keep your projects running without interruption or downtime.
- ENGINEERED FOR PRECISION - Exact 8mm inner and 12mm outer diameter for seamless fit and performance.
- VERSATILE INDUSTRIAL USE - Ideal for machinery, power transmission, vehicles, and DIY projects—upgrade your gear effortlessly.
- SMOOTH RELIABLE ROTATION - Double metal shields (MR128ZZ) protect against dust and debris for consistent operation.
The CNBTR MR128ZZ mini groove ball bearings measure 8x12x3.5mm, made from durable bearing steel with double metal shields for dust protection. Designed for reliable, smooth rotation in industrial and DIY applications, this pack of 10 ensures you never run out of high-performance bearings.
Specifications
| Brand | CNBTR |
| Material | Alloy Steel |
| Item Weight | 12 Grams |
| Bearing Number | MR128ZZ |
| Item Thickness | 3.5 Millimeters |
| Bearing Type | Ball Bearing |
| Compatible Lubricant | Grease |
| Outside Diameter | 12 Millimeters |
| Manufacturer | yqltd |
| Part Number | M6190101158 |
| Item Weight | 0.423 ounces |
| Package Dimensions | 2.48 x 1.89 x 0.16 inches |
| Country of Origin | China |
| Item model number | M6190101158 |
| Pattern | MR128ZZ 8x12x3.5mm |
| Measurement System | Metric |
| Batteries Required? | No |
Reviews
K**N
Good quality bearing for limited clearance
These bearings were used to replace worn sleeve bearings for small lathe handwheel shafts. The small size outer race was appropriate for the minimal clearance available. The application is shaft stabilization in low speed application and for that purpose, these bearings are entirely satisfactory.
M**X
Small Breaings
As described!
P**N
Well made, runs smooth, don't know the longevity yet.
Well made, runs smooth, don't know the longevity yet.
J**N
They seem to be of good quality and work.
Received a packet of 10 pcs. They all seem to work fine but have only used two in an application so far. No issues.
R**S
Loosely bagged no padding in box
1 of the bearings was damaged and hard to rotate although with how many that are in the bag, this is hardly an issue considering that there are 10 in a package.
Z**D
Dimensions are accurate, most roll smoothly
Measured with calipers, dimensions are all completely accurate which is great. 8 out of the 10 roll very smoothly and I will be using them. Of the other 2, one grinds a bit and locks up every rotation, the other spins freely but grinds very roughly. I need smoothness so I won't be using those 2.
M**T
Last batch has a huge amount of play, unusable for me.
I have purchased these MR128-ZZ 8x12x3.5mm several times and never had any problems. But this last batch I received, all the bearings have a significant amount of play. I still had a few from the previous purchase and they have much better tolerances.The parts they get pressed into makes it really difficult to remove them without damaging the part, so the parts are now toast.Lesson learned, no more cheap Amazons bearing for me.
M**L
Don’t waste your money
A 2mm rod will not pass all the way through the 2mm ID by 5mm OD BY 2.5mm wide bearings, rendering them completely useless for my purposes.
Common Questions
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