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| Parameter | INA686>N6 × 13 × 3.5 mm | NSK686A6 × 13 × 3.5 mm | KOYO6866 × 13 × 3.5 mm | EZO6866 × 13 × 3.5 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | INA | NSK | KOYO | EZO |
| Designation | 686>N | 686A | 686 | 686 |
| Product family | — | Single row deep groove ball bearings | Extra-small, miniature ball bearings / Standard type / Open | Miniature Ball Bearing |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Series | 686 | — | — | — |
| Bore diameterd | 6 mm | 6 mm | 6 mm | 6 mm |
| Outside diameterD | 13 mm | 13 mm | 13 mm | 13 mm |
| WidthB | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm |
| Basic dynamic load ratingC | 1.15 kN | 1.19 kN | 1.35 kN | 1.08 kN |
| Basic static load ratingC0 | 0.44 kN | 0.44 kN | 0.44 kN | 0.438 kN |
| Fatigue load limitPu | 0.027 kN | — | 0.01 kN | — |
| Reference speednref | 36500 r/min | — | — | — |
| Limiting speednG | 72000 r/min | — | 48000 r/min | — |
| Mass≈m | 0.00187 kg | 0.00191 kg | 0.001 kg | 0.00185 kg |
| Sealing | — | Open | Open | Open (no closure suffix in this catalogue marking) |
| Bearing material | — | — | — | High-carbon chromium bearing steel |
| Minimum operating temperatureTmin | -30 °C | — | — | — |
| Maximum operating temperatureTmax | 120 °C | — | — | — |
| Boundary dimensions | ||||
| Bearing width (open)B | — | 3.5 mm | — | — |
| Outer diameterD | — | — | — | 13 mm |
| Minimum bearing chamferr min. | — | 0.15 mm | — | — |
| Outer diameterD | — | — | — | 0.5118 inch |
| Inner ring widthB | — | — | — | 3.5 mm |
| Inner ring widthB | — | — | — | 0.1378 inch |
| Outer ring widthC | — | — | — | 3.5 mm |
| Outer ring widthC | — | — | — | 0.1378 inch |
| Inner ring chamfer dimensionr si min | — | — | — | 0.15 mm |
| Inner ring chamfer dimensionr si min | — | — | — | 0.0059 inch |
| Outer ring chamfer dimensionr se min | — | — | — | 0.15 mm |
| Outer ring chamfer dimensionr se min | — | — | — | 0.0059 inch |
| Classification | ||||
| Official Category Path | — | — | Deep groove ball bearings - Extra-small, miniature ball bearings - Standard type - Open | — |
| Official Classification 1 | — | — | Deep groove ball bearings / Extra-small, miniature ball bearings / Standard type / Open | — |
| Construction | ||||
| Catalogue closure construction | — | Open | — | — |
| Closure interpretation | — | — | — | Open (no closure suffix in this catalogue marking) |
| Material interpretation | — | — | — | High-carbon chromium bearing steel |
| Load ratings | ||||
| Basic dynamic radial load ratingCr | — | 1190 N | — | — |
| Basic static radial load ratingC0r | — | 440 N | — | — |
| Lubrication-qualified speed | ||||
| Limiting speed with grease | — | 40000 r/min | — | — |
| Limiting speed with oil (open) | — | 50000 r/min | — | — |
| Catalogue limiting speed (grease) | — | — | — | 48000 r/min |
| Catalogue limiting speed (oil) | — | — | — | 56000 r/min |
| Manufacturer Identity | ||||
| Schaeffler Product Code | 2898267 | — | — | — |
| Official Class Key | — | — | 010-020-010 | — |
| Base Type | 686 | — | — | — |
| Gpsd Group | S02 | — | — | — |
| Product Line Id | 14 | — | — | — |
| Mounting dimensions | ||||
| Minimum shaft shoulder diameter (open)da min. | — | 7.2 mm | — | — |
| Maximum adjacent fillet radiusra max. | — | 0.15 mm | — | — |
| Maximum housing shoulder diameter (open)Da max. | — | 11.8 mm | — | — |
| Adjacent mounting dimension (da min)da min | — | — | — | 11.1 mm |
| Adjacent mounting dimension (da min)da min | — | — | — | 0.437 inch |
| Adjacent mounting dimension (da max)da max | — | — | — | 11.8 mm |
| Adjacent mounting dimension (da max)da max | — | — | — | 0.4646 inch |
| Adjacent mounting dimension (r asi max)r asi max | — | — | — | 0.15 mm |
| Adjacent mounting dimension (r asi max)r asi max | — | — | — | 0.0059 inch |
| Adjacent mounting dimension (r ase max)r ase max | — | — | — | 0.15 mm |
| Adjacent mounting dimension (r ase max)r ase max | — | — | — | 0.0059 inch |
| Product Identity | ||||
| Construction | Deep groove ball bearing 68.., single row, steel sheet metal cage | — | — | — |
| Short Description | Deep groove ball bearing | — | — | — |
| Reference mass | ||||
| Approximate catalogue mass (open) | — | 1.91 g | — | — |
| Reference mass | — | — | — | 1.85 g |
| Rolling elements | ||||
| Ball diameterDw | — | — | — | 2 mm |
| Ball quantityZ | — | — | — | 8 |
| Technical Data | ||||
| d | — | — | 13 mm | — |
| B | — | — | 3.5 mm | — |
| Bore Diameter (D) | 6 mm | — | — | — |
| R(Min.) | — | — | 0.15 mm | — |
| Outside Diameter (D) | 13 mm | — | — | — |
| Basic Load Ratings : Cr | — | — | 1.35 kN | — |
| Width (B) | 3.5 mm | — | — | — |
| Basic Load Ratings : C0R | — | — | 0.44 kN | — |
| Basic Dynamic Load Rating, Radial (Cr) | 1,150 N | — | — | — |
| Fatigue Load Limit : Cu | — | — | 0.010 kN | — |
| Basic Static Load Rating, Radial (C0R) | 440 N | — | — | — |
| Factor : F0 | — | — | 13.7 | — |
| Operating Temperature Min. (Tmin) | -30 °C | — | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 48000 min-1 | — |
| Limiting Speed (Ng) | 72,000 1/min | — | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 57000 min-1 | — |
| Operating Temperature Max. (Tmax) | 120 °C | — | — | — |
| Da(Min.) | — | — | 7.2 mm | — |
| Reference Speed (Nϑr) | 36,500 1/min | — | — | — |
| Da(Max.) | — | — | 11.8 mm | — |
| Calculation Factor (F0) | 13.8 | — | — | — |
| Ra(Max.) | — | — | 0.15 mm | — |
| Fatigue Load Limit, Radial (Cur) | 27 N | — | — | — |
| Mass(Refer.) | — | — | 1.8 g | — |
| Minimum Diameter Shaft Shoulder (Da Min) | 6.8 mm | — | — | — |
| Shoulder Diameter Inner Ring (D1) | 7.9 mm | — | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | 12.2 mm | — | — | — |
| Minimum Chamfer Dimension (Rmin) | 0.15 mm | — | — | — |
| Maximum Fillet Radius (Ra Max) | 0.15 mm | — | — | — |
| Shoulder Diameter Outer Ring (D1) | 11.1 mm | — | — | — |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.