The FMR148 is a deep groove ball bearing with bore 8mm, outer diameter 12mm, and width 3.5mm rated for dynamic load 0.8 kN.

Reference speed for this model is provided with your quotation.
| Bearing type | Deep Groove Ball Bearings |
| Series | Flanged Thin-Section Bearings |
| Seal type | Open |
| Material | Confirmed per inquiry — grade and certificate availability reviewed before quotation |
| Bore type | Confirmed per drawing |
| Dimension unit | millimeter (mm) |
What each part of FMR148 means.
| FMR | FMR = miniature inch-series flange |
Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.
| Seal Type | Model Code | Typical Use | |
|---|---|---|---|
| Double metal shields | FMR148 ZZ (inquiry only) | General dust protection | Quote → |
| Double contact rubber seals | FMR148 2RS (inquiry only) | Dust and moisture protection at moderate speed | Quote → |
| Double non-contact rubber seals | FMR148 2RZ (inquiry only) | Lower-friction sealing at higher speed | Quote → |
| C3 radial clearance | FMR148 C3 (inquiry only) | Motors and applications with higher operating temperature | Quote → |
| Bore diameter (d) | 8 |
| Outer diameter (D) | 12 |
| Width (B) | 3.5 |
Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.

The PDF drawing is free to download. DXF and 3D STEP files are sent on request: tell us the model and your application, and we reply with the CAD files.
The models below share the 8x12x3.5 mm boundary dimensions. Matching d/D/B alone does not prove interchangeability; verify seals, clearance, ring features, load ratings, fits, and application conditions before replacement.
| Model | Relationship | Series | Seal | Action |
|---|---|---|---|---|
| FMR128 | Different outer-ring feature | Flanged Thin-Section Bearings | Open | Quote → |
| MF128 | Different outer-ring feature | Extended Inner-Ring Flanged Bearings | Sealed | Quote → |
| MF128 2rs | Different outer-ring feature | MF128 | Sealed | Quote → |
| MF128 ZZ | Different outer-ring feature | MF128 | Metal Shields | Quote → |
| MF128zz | Different outer-ring feature | MF128 | Shielded | Quote → |
| MF128ZZ1 | Different outer-ring feature | MR Miniature Series | Open | Quote → |
| MR128 | Different outer-ring feature | MR Miniature Series | Shielded | Quote → |
| MR128 2rs | Different outer-ring feature | MR | Sealed | Quote → |
| MR128 ZZ | Different outer-ring feature | MR | Metal Shields | Quote → |
| MR128zz | Different outer-ring feature | MR | Shielded | Quote → |
| MR128ZZ1 | Different outer-ring feature | MR Miniature Series | Open | Quote → |
| SMF128 2rs | Different outer-ring feature | SMF128 | Sealed | Quote → |
| SMF128zz | Different outer-ring feature | SMF128 | Shielded | Quote → |
Same bearing family or similar dimensions.
Similar size — reference only, verify all interfacesNLHB supports both in-house manufacturing and qualified partner sourcing. We confirm the specification, supply route, inspection requirements, and available documentation before quotation.
About NLHB →Send us your quantity, application and target lead time. We confirm spec, interchange and realistic delivery — no order confirmed until you approve.
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