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| Parameter | FAG693>N3 × 8 × 3 mm | NSK6933 × 8 × 3 mm | KOYO6933 × 8 × 3 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | FAG | NSK | KOYO |
| Designation | 693>N | 693 | 693 |
| Product family | — | Single row deep groove ball bearings | Extra-small, miniature ball bearings / Standard type / Open |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Series | 693 | — | — |
| Bore diameterd | 3 mm | 3 mm | 3 mm |
| Outside diameterD | 8 mm | 8 mm | 8 mm |
| WidthB | 3 mm | 3 mm | 3 mm |
| Basic dynamic load ratingC | 0.58 kN | 0.615 kN | 0.68 kN |
| Basic static load ratingC0 | 0.174 kN | 0.179 kN | 0.17 kN |
| Fatigue load limitPu | 0.0108 kN | — | 0.005 kN |
| Reference speednref | 71000 r/min | — | — |
| Limiting speednG | 105000 r/min | — | 64000 r/min |
| Mass≈m | 0.0006 kg | 0.00061 kg | 0 kg |
| Precision class | PN — Normal (ISO 492:2023) | — | — |
| Internal clearance | CN (Group N) — Normal internal clearance | — | — |
| Sealing | Without — Not sealed | Open | Open |
| Cage | JN — Steel sheet metal | — | — |
| Lubricant | Without — Bearing not greased | — | — |
| Minimum operating temperatureTmin | -30 °C | — | — |
| Maximum operating temperatureTmax | 120 °C | — | — |
| Boundary dimensions | |||
| Bearing width (open)B | — | 3 mm | — |
| Minimum bearing chamferr min. | — | 0.15 mm | — |
| Calculation factors | |||
| Calculation factorf0 | 11.5 | — | — |
| Capabilities & suitability | |||
| Radial load capacity | Yes | — | — |
| Axial load capacity in one direction | Yes | — | — |
| Axial load capacity in both directions | Yes | — | — |
| Suitable for grease lubrication | Yes | — | — |
| Suitable for oil lubrication | Yes | — | — |
| Unsealed design | Yes | — | — |
| 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 | — |
| Dimensions | |||
| Minimum chamfer dimensionrmin | 0.15 mm | — | — |
| Minimum chamfer dimensionrmin | 0.006 in | — | — |
| Shoulder diameter outer ringD1 | 6.4 mm | — | — |
| Shoulder diameter outer ringD1 | 0.252 in | — | — |
| Shoulder diameter inner ringd1 | 4.1 mm | — | — |
| Shoulder diameter inner ringd1 | 0.161 in | — | — |
| Load ratings | |||
| Basic dynamic radial load ratingCr | — | 615 N | — |
| Basic static radial load ratingC0r | — | 179 N | — |
| Lubrication-qualified speed | |||
| Limiting speed with grease | — | 60000 r/min | — |
| Limiting speed with oil (open) | — | 67000 r/min | — |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | 580 N | — | — |
| Basic dynamic load rating, radialCr | 130.396 lbf | — | — |
| Basic static load rating, radialC0r | 174 N | — | — |
| Basic static load rating, radialC0r | 39.119 lbf | — | — |
| Fatigue load limit, radialCur | 10.8 N | — | — |
| Fatigue load limit, radialCur | 2.428 lbf | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | 3958363 | — | — |
| Official Class Key | — | — | 010-020-010 |
| Base Type | 693 | — | — |
| Gpsd Group | S02 | — | — |
| Product Line Id | 14 | — | — |
| SAP material number | 0976727770000 | — | — |
| Base product | 2305080101 | — | — |
| Mounting dimensions | |||
| Minimum shaft shoulder diameter (open)da min. | — | 4.2 mm | — |
| Maximum adjacent fillet radiusra max. | — | 0.15 mm | — |
| Maximum housing shoulder diameter (open)Da max. | — | 6.8 mm | — |
| Minimum diameter shaft shoulderda min | 3.8 mm | — | — |
| Minimum diameter shaft shoulderda min | 0.15 in | — | — |
| Maximum diameter of housing shoulderDa max | 7.2 mm | — | — |
| Maximum diameter of housing shoulderDa max | 0.283 in | — | — |
| Maximum fillet radiusra max | 0.15 mm | — | — |
| Maximum fillet radiusra max | 0.006 in | — | — |
| Product characteristics | |||
| Version code>N | Not marked on bearing | — | — |
| Type of SealWithout | Not sealed | — | — |
| Tolerance classPN | Normal (ISO 492:2023) | — | — |
| Dimensional / heat stabilizationSN | Rings dimensional stabilized up to 120° | — | — |
| Radial internal clearanceCN (Group N) | Normal internal clearance | — | — |
| Bore typeZ | Cylindrical | — | — |
| Product Identity | |||
| Construction | Deep groove ball bearing 69, single row, steel sheet metal cage | — | — |
| Short Description | Deep groove ball bearing | — | — |
| Reference mass | |||
| Approximate catalogue mass (open) | — | 0.61 g | — |
| Technical Data | |||
| d | — | — | 8 mm |
| B | — | — | 3 mm |
| Bore Diameter (D) | 3 mm | — | — |
| R(Min.) | — | — | 0.15 mm |
| Outside Diameter (D) | 8 mm | — | — |
| Basic Load Ratings : Cr | — | — | 0.680 kN |
| Width (B) | 3 mm | — | — |
| Basic Load Ratings : C0R | — | — | 0.17 kN |
| Basic Dynamic Load Rating, Radial (Cr) | 580 N | — | — |
| Fatigue Load Limit : Cu | — | — | 0.005 kN |
| Basic Static Load Rating, Radial (C0R) | 174 N | — | — |
| Factor : F0 | — | — | 11.5 |
| Operating Temperature Min. (Tmin) | -30 °C | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 64000 min-1 |
| Limiting Speed (Ng) | 105,000 1/min | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 76000 min-1 |
| Operating Temperature Max. (Tmax) | 120 °C | — | — |
| Da(Min.) | — | — | 4.2 mm |
| Reference Speed (Nϑr) | 71,000 1/min | — | — |
| Da(Max.) | — | — | 6.8 mm |
| Calculation Factor (F0) | 11.5 | — | — |
| Ra(Max.) | — | — | 0.15 mm |
| Fatigue Load Limit, Radial (Cur) | 10.8 N | — | — |
| Mass(Refer.) | — | — | 0.6 g |
| Minimum Diameter Shaft Shoulder (Da Min) | 3.8 mm | — | — |
| Shoulder Diameter Inner Ring (D1) | 4.1 mm | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | 7.2 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | 0.15 mm | — | — |
| Maximum Fillet Radius (Ra Max) | 0.15 mm | — | — |
| Shoulder Diameter Outer Ring (D1) | 6.4 mm | — | — |
| Temperature range | |||
| Operating temperature min.Tmin | -30 °C | — | — |
| Operating temperature min.Tmin | -22 °F | — | — |
| Operating temperature max.Tmax | 120 °C | — | — |
| Operating temperature max.Tmax | 248 °F | — | — |
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.