Deep Groove Ball Bearing
Product name：MR128ZZ
Size：8x12x3.5 mm
Material：Gcr15 chrome steel
Brand：famous brand/RMO/Neutral/OEM
grade level：P0
Lead time：In stock: 3-5 work days. Customize: 20-30 work days
Payment terms：100% T/T, or 30% T/T in advance, 70% before delivery
Trade terms：EXW,FCA, FOB, CIF, DDP(USA)
Specification
MR128ZZ is a high-performance miniature deep-groove ball bearing, ideal for precision devices. Its dimensions are 8mm
(inner diameter),12mm (outer diameter), and 3.5mm (thickness), fitting tight spaces perfectly.
Made from premium GCr15 bearing steel with a metal dust cover, it resists contaminants, boosting durability. It handles 462N
dynamic load and 219N static load,reaching 40,000rpm (grease-lubricated) or 48,000rpm (oil-lubricated). Operating in -30°C
to110°C, it suits diverse environments.
With ABEC-1 precision, it runs stably and quietly. Widely used in electronics manufacturing, reducers, and welders, it
offers reliablesupport at great value, making it a top choice for precision machinery.
Related Products
| Model No. | d | D | H | m |
| MR63-2Z | 3 mm | 6 mm | 2.5 mm | 0.28 g |
| MR83-2Z | 3mm | 8 mm | 3mm | 0.67 g |
| MR74-2Z | 4 mm | 7 mm | 2.5mm | 0.33 g |
| MR84-2Z | 4 mm | 8mm | 3 mm | 0.54g |
| MR104-2Z | 4 mm | 10 mm | 4 mm | 1.33 g |
| MR85-2Z | 5 mm | 8mm | 2.5mm | 0.34 g |
| MR95-2Z | 5mm | 9 mm | 3 mm | 0.58g |
| MR105-2Z | 5 mm | 10mm | 4 mm | 1.26 g |
| MR115-2Z | 5mm | 11 mm | 4 mm | 0.81g |
| MR106-2Z | 6 mm | 10mm | 3mm | 0.7g |
| MR126-2Z | 6 mm | 12 mm | 4 mm | 1.66 g |
| MR117-2Z | 7 mm | 11 mm | 3 mm | 0.71g |
| MR128-2Z | 8 mm | 12 mm | 3.5mm | 0.99 g |
Main uses
It supports small motors, electronic devices (gimbals), packaging/agricultural machinery, and transmission shafts via radial/axial load resistance. Its precision enhances instruments, medical devices, automotive gearboxes, yo-yos, and roller skates with reliable rotation.
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