The 6306 2RZ is a deep groove ball bearing with bore 30mm, outer diameter 72mm, and width 19mm rated for dynamic load 26.7 kN.

| Bearing type | Deep Groove Ball Bearings |
| Series | 6300 |
| Seal type | Rubber Seals |
| Material | Confirmed per inquiry — grade and certificate availability reviewed before quotation |
| Bore type | Confirmed per drawing |
| Dimension unit | millimeter (mm) |
What each part of 6306 2RZ means.
| 6 | 6 = Deep Groove Ball Bearing |
| 3 | 3 = dimension-series code |
| 06 | 06 = bore code; nominal bore d = 30 mm |
| 2RZ | 2RZ = double non-contact rubber seals |
Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.
| Seal Type | Model Code | Typical Use | |
|---|---|---|---|
| Open | 6306 | High speed in clean environments | Quote → |
| Double metal shields | 6306 ZZ | General dust protection | Quote → |
| Double contact rubber seals | 6306 2RS | Dust and moisture protection at moderate speed | Quote → |
| C3 radial clearance | 6306 C3 (inquiry only) | Motors and applications with higher operating temperature | Quote → |
| Bore diameter (d) | 30 |
| Outer diameter (D) | 72 |
| Width (B) | 19 |
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).
Lubrication method and application speed limit are confirmed per inquiry; no oil-speed value is derived from this number.
The models below share the 30x72x19 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 |
|---|---|---|---|---|
| 6306 | Configuration variant | 6300 | Open | Quote → |
| 6306 2RS | Configuration variant | 6300 | Rubber Seals | Quote → |
| 6306 ZZ | Configuration variant | 6300 | Metal Shields | Quote → |
| 6306N | Same boundary dimensions — verify fit/load | 6300 | Open | Quote → |
| 6306NR | Same boundary dimensions — verify fit/load | 6300 | Open | Quote → |
| 7306 | Same boundary dimensions — verify fit/load | 73 Series | Open | Quote → |
| BL306 | Same boundary dimensions — verify fit/load | Full-Complement Deep Groove Ball Bearings | Open | Quote → |
| BL306ZZ | 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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