The 639 2rs is a deep groove ball bearing with bore 9mm, outer diameter 30mm, and width 10mm rated for dynamic load 17.6 kN.
| Bearing type | Deep Groove Ball Bearings |
| Series | Metric Miniature Series |
| Seal type | Sealed |
| Material | Confirmed per inquiry — grade and certificate availability reviewed before quotation |
| Bore type | Confirmed per drawing |
| Dimension unit | millimeter (mm) |
Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.
| Seal Type | Model Code | Typical Use | |
|---|---|---|---|
| Open | 639 | High speed in clean environments | Quote → |
| Double metal shields | 639 ZZ | General dust protection | Quote → |
| Double contact rubber seals | 639 2RS (inquiry only) | Dust and moisture protection at moderate speed | Quote → |
| Double non-contact rubber seals | 639 2RZ | Lower-friction sealing at higher speed | Quote → |
| C3 radial clearance | 639 C3 (inquiry only) | Motors and applications with higher operating temperature | Quote → |
| Bore diameter (d) | 9 |
| Outer diameter (D) | 30 |
| Width (B) | 10 |
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 9x30x10 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 |
|---|---|---|---|---|
| 639 | Configuration variant | 6300 | Open | Quote → |
| 639 2RZ | Configuration variant | 6300 | Rubber Seals | Quote → |
| 639 ZZ | Configuration variant | Extra Small / Miniature Deep Groove Ball Bearing | Metal Shields | Quote → |
| 639VV | Configuration variant | 6300 | Open | Quote → |
| 639ZZ | Configuration variant | 6300 | Metal Shields | 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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