The 687DD is a deep groove ball bearing with bore 7mm, outer diameter 14mm, and width 5mm rated for dynamic load 1.3 kN.

| Bearing type | Deep Groove Ball Bearings |
| Series | 6700 / 6800 / 6900 Thin-Section 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) |
| Bore diameter (d) | 7 |
| Outer diameter (D) | 14 |
| Width (B) | 5 |
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 7x14x5 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 |
|---|---|---|---|---|
| 687 2RS | Configuration variant | 6700 / 6800 / 6900 Thin-Section Series | Rubber Seals | Quote → |
| 687 2RZ | Configuration variant | 6700 / 6800 / 6900 Thin-Section Series | Rubber Seals | Quote → |
| 687 ZZ | Configuration variant | Extra Small / Miniature Deep Groove Ball Bearing | Metal Shields | Quote → |
| 687VV | Configuration variant | 6700 / 6800 / 6900 Thin-Section Series | Open | Quote → |
| 687zz | Configuration variant | Metric Miniature Series | Shielded | Quote → |
| 687ZZ1 | Same boundary dimensions — verify fit/load | 6700 / 6800 / 6900 Thin-Section Series | Metal Shields | Quote → |
| F687 | Different outer-ring feature | Standard Flanged Bearings | Shielded | Quote → |
| F687 2rs | Different outer-ring feature | F687 | Sealed | Quote → |
| F687 2RZ | Different outer-ring feature | Standard Flanged Bearings | Rubber Seals | Quote → |
| F687 ZZ | Different outer-ring feature | F687 | Metal Shields | Quote → |
| F687DD | Different outer-ring feature | Standard Flanged Bearings | Open | Quote → |
| F687VV | Different outer-ring feature | Standard Flanged Bearings | Open | Quote → |
| F687zz | Different outer-ring feature | F687 | Shielded | Quote → |
| F687ZZ1 | Different outer-ring feature | Standard Flanged Bearings | Open | Quote → |
| SF687 2rs | Same boundary dimensions — verify fit/load | F687 | Sealed | Quote → |
| SF687zz | Same boundary dimensions — verify fit/load | F687 | Shielded | 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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