EN4
The EN4 is an aircraft bearing with bore 4mm, outer diameter 16mm, and width 5mm rated for dynamic load 1.8 kN.
📋 Technical Specifications
| Bearing type | Aircraft Bearings |
| Series | Radials |
| 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) |
📐 Detailed Dimensions
Basic dimensions (mm)
| Bore diameter (d) | 4 |
| Outer diameter (D) | 16 |
| Width (B) | 5 |
Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.
📑 Drawings & 3D Model
Drawings and 3D models are provided per inquiry. Tell us your application and we will send the appropriate file format (DXF, DWG, STEP, IGES).
⚡ Source-Data Reference Speed
Lubrication method and application speed limit are confirmed per inquiry; no oil-speed value is derived from this number.
⇄ Same-size Bearings & Reference Options
The models below share the 4x16x5 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 |
|---|---|---|---|---|
| -02 (WR16-A) | Same boundary dimensions — verify fit/load | WR / International Series | Open | Quote → |
| -04 (WR16-B) | Same boundary dimensions — verify fit/load | WR / International Series | Open | Quote → |
| -05 (WR16-C) | Same boundary dimensions — verify fit/load | WR / International Series | Open | Quote → |
| -07 (WR16-D) | Same boundary dimensions — verify fit/load | WR / International Series | Open | Quote → |
| 30.M.14.078-02 | Same boundary dimensions — verify fit/load | V-Groove / U-Groove | Open | Quote → |
| 30.M.14.078-04 | Same boundary dimensions — verify fit/load | V-Groove / U-Groove | Open | Quote → |
| 30.M.14.078-07 | Same boundary dimensions — verify fit/load | V-Groove / U-Groove | Open | Quote → |
| 30.M.14.078-08 | Same boundary dimensions — verify fit/load | V-Groove / U-Groove | Open | Quote → |
| 420-M.294.012/1-01 | Same boundary dimensions — verify fit/load | V-Groove / U-Groove | Open | Quote → |
| 634 | Same boundary dimensions — verify fit/load | 6300 | Open | Quote → |
| 634 2rs | Same boundary dimensions — verify fit/load | Metric Miniature Series | Sealed | Quote → |
| 634 ZZ | Same boundary dimensions — verify fit/load | Extra Small / Miniature Deep Groove Ball Bearing | Metal Shields | Quote → |
| 634zz | Same boundary dimensions — verify fit/load | Metric Miniature Series | Shielded | Quote → |
| 634ZZ1 | Same boundary dimensions — verify fit/load | 6300 | Metal Shields | Quote → |
| E4 | Same boundary dimensions — verify fit/load | Radials | Open | Quote → |
| F634 | Different outer-ring feature | Standard Flanged Bearings | Sealed | Quote → |
| F634 2rs | Different outer-ring feature | F634 | Sealed | Quote → |
| F634 ZZ | Different outer-ring feature | F634 | Metal Shields | Quote → |
| F634zz | Different outer-ring feature | F634 | Shielded | Quote → |
| F634ZZ1 | Different outer-ring feature | Standard Flanged Bearings | Open | Quote → |
| SF634 | Same boundary dimensions — verify fit/load | F634 | Open | Quote → |
| SF634 2rs | Same boundary dimensions — verify fit/load | F634 | Sealed | Quote → |
| SF634zz | Same boundary dimensions — verify fit/load | F634 | Shielded | Quote → |
⚙ Typical Applications
Why choose NLHB?
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 →❓ Frequently Asked Questions
Get a quote for EN4
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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