The 7221 is a bearing with bore 105mm, outer diameter 190mm, and width 36mm rated for dynamic load 157.0 kN.
| Bearing type | Angular Contact Ball Bearings |
| Series | 72 Series |
| Seal type | Confirm per inquiry |
| Material | Confirmed per inquiry — grade and certificate availability reviewed before quotation |
| Bore type | Confirmed per drawing |
| Dimension unit | millimeter (mm) |
What each part of 7221 means.
| 7 | 7 = Angular Contact Ball Bearing |
| 2 | 2 = dimension-series code |
| 21 | 21 = bore code; nominal bore d = 105 mm |
Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.
| Seal Type | Model Code | Typical Use | |
|---|---|---|---|
| Double metal shields | 7221 ZZ (inquiry only) | General dust protection | Quote → |
| Double contact rubber seals | 7221 2RS (inquiry only) | Dust and moisture protection at moderate speed | Quote → |
| Double non-contact rubber seals | 7221 2RZ (inquiry only) | Lower-friction sealing at higher speed | Quote → |
| C3 radial clearance | 7221 C3 (inquiry only) | Motors and applications with higher operating temperature | Quote → |
| Bore diameter (d) | 105 |
| Outer diameter (D) | 190 |
| Width (B) | 36 |
Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.
Drawings and 3D models are provided per inquiry. Tell us your application and we will send the appropriate file format (DXF, DWG, STEP, IGES).
The models below share the 105x190x36 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 |
|---|---|---|---|---|
| 6221 | Same boundary dimensions — verify fit/load | 62 | Open | Quote → |
| 6221 2RS | Same boundary dimensions — verify fit/load | 62 | Sealed | Quote → |
| 6221N | Same boundary dimensions — verify fit/load | 62200/62300 | Open | Quote → |
| 6221NR | Same boundary dimensions — verify fit/load | 62200/62300 | Open | Quote → |
| 6221ZZ | Same boundary dimensions — verify fit/load | 62 | Shielded | Quote → |
| BL221 | Same boundary dimensions — verify fit/load | Full-Complement Deep Groove Ball Bearings | Open | Quote → |
| BL221ZZ | Same boundary dimensions — verify fit/load | Full-Complement Deep Groove Ball Bearings | Open | Quote → |
NLHB 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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