They are miniature deep groove ball bearings for micro motors, instruments and small transmission structures.
Miniature Bearing Supplier
MR63 and MR106 miniature deep groove ball bearings are suitable for micro motors, instruments, small transmission structures, automation parts and precision mechanisms.

Product Overview
Qiujing Bearing supplies MR63 and MR106 miniature deep groove ball bearings. They can be selected in bearing steel or stainless steel versions and with ZZ, RS or open structures.
Miniature bearings are small and require careful confirmation of size, suffix, width and mounting conditions. Width may differ between open and shielded or sealed suffixes.
Specifications
| Model | Common Size | Material | Sealing | Applications |
|---|---|---|---|---|
| MR63 | 3x6x2mm, shielded width commonly 2.5mm | Bearing steel / stainless steel | ZZ / RS / Open | Micro motors, instruments, small transmission |
| MR106 | 6x10x2.5mm, shielded width commonly 3mm | Bearing steel / stainless steel | ZZ / RS / Open | Automation parts, precision mechanisms |
Selection Notes
- Confirm bore, outside diameter, width, sealing type, speed, load and mounting space.
- Choose bearing steel for common environments and stainless steel when anti-rust performance is needed.
- Confirm suffix and actual width before ordering.
- Drawings or sample photos are helpful for selection.
FAQ
Yes. Material can be selected according to working environment and anti-rust requirements.
Not always. Width can differ by suffix, so drawings or samples should be checked.
