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| Parameter | FAGF604-2Z-HLC4 × 12 × 4 mm | NSKF6044 × 12 × 4 mm | KOYOF6044 × 12 × 4 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | FAG | NSK | KOYO |
| Designation | F604-2Z-HLC | F604 | F604 |
| Product family | — | Single row deep groove ball bearings | Extra-small, miniature ball bearings / Flanged type / Open |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Series | F604 | — | — |
| Bore diameterd | 4 mm | 4 mm | 4 mm |
| Outside diameterD | 12 mm | 12 mm | 12 mm |
| WidthB | 4 mm | 4 mm | 4 mm |
| Basic dynamic load ratingC | 0.959 kN | 1.05 kN | 1.2 kN |
| Basic static load ratingC0 | 0.347 kN | 0.345 kN | 0.35 kN |
| Fatigue load limitPu | 0.0093 kN | — | 0.009 kN |
| Reference speednref | 55000 r/min | — | — |
| Limiting speednG | 69000 r/min | — | 54000 r/min |
| Mass≈m | 0.00257 kg | 0.00253 kg | 0.002 kg |
| Precision class | PN — Normal (ISO 492:2023) | — | — |
| Internal clearance | CN (Group N) — Normal internal clearance | — | — |
| Sealing | 2Z — Non-contact shield on both sides | Open | Open |
| Cage | JN — Steel sheet metal | — | — |
| Lubricant | Lubricating grease | — | — |
| Minimum operating temperatureTmin | -30 °C | — | — |
| Maximum operating temperatureTmax | 120 °C | — | — |
| Boundary dimensions | |||
| Body outside diameterD | — | 12 mm | — |
| Bearing width (open)B | — | 4 mm | — |
| Minimum bearing chamferr min. | — | 0.2 mm | — |
| Calculation factors | |||
| Calculation factorf0 | 12.4 | — | — |
| Capabilities & suitability | |||
| Radial load capacity | Yes | — | — |
| Axial load capacity in one direction | Yes | — | — |
| Axial load capacity in both directions | Yes | — | — |
| Lifetimelubricationfreedomfrommaintenance | Yes | — | — |
| Suitable for grease lubrication | Yes | — | — |
| Sealedonbothsides | Yes | — | — |
| Classification | |||
| Official Category Path | — | — | Deep groove ball bearings - Extra-small, miniature ball bearings - Flanged type - Open |
| Official Classification 1 | — | — | Deep groove ball bearings / Extra-small, miniature ball bearings / Flanged type / Open |
| Construction | |||
| Catalogue closure construction | — | Open | — |
| Dimensions | |||
| Minimum chamfer dimensionrmin | 0.2 mm | — | — |
| Minimum chamfer dimensionrmin | 0.008 in | — | — |
| Shoulder diameter outer ringD1 | 8.95 mm | — | — |
| Shoulder diameter outer ringD1 | 0.352 in | — | — |
| Caliber diameter outer ringD2 | 9.85 mm | — | — |
| Caliber diameter outer ringD2 | 0.388 in | — | — |
| Shoulder diameter inner ringd1 | 6.15 mm | — | — |
| Shoulder diameter inner ringd1 | 0.242 in | — | — |
| Caliber diameter inner ringd2 | 5.6 mm | — | — |
| Caliber diameter inner ringd2 | 0.22 in | — | — |
| Width flangeBf | 1 mm | — | — |
| Width flangeBf | 0.039 in | — | — |
| Outer diameter flangeDf | 13.5 mm | — | — |
| Outer diameter flangeDf | 0.531 in | — | — |
| Flange dimensions | |||
| Flange outside diameterD1 | — | 13.5 mm | — |
| Flange widthC1 | — | 1 mm | — |
| Load ratings | |||
| Basic dynamic radial load ratingCr | — | 1050 N | — |
| Basic static radial load ratingC0r | — | 345 N | — |
| Lubrication-qualified speed | |||
| Limiting speed with grease | — | 48000 r/min | — |
| Limiting speed with oil (open) | — | 56000 r/min | — |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | 959 N | — | — |
| Basic dynamic load rating, radialCr | 215.603 lbf | — | — |
| Basic static load rating, radialC0r | 347 N | — | — |
| Basic static load rating, radialC0r | 78.013 lbf | — | — |
| Fatigue load limit, radialCur | 9.3 N | — | — |
| Fatigue load limit, radialCur | 2.091 lbf | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | 357078 | — | — |
| Official Class Key | — | — | 010-020-020 |
| Base Type | F604 | — | — |
| Gpsd Group | N14 | — | — |
| Product Line Id | 14 | — | — |
| X Life Marking | n.r. | — | — |
| SAP material number | 0729635220000 | — | — |
| Base product | 2305080103 | — | — |
| Mounting dimensions | |||
| Minimum shaft shoulder diameter (open)da min. | — | 5.6 mm | — |
| Maximum adjacent fillet radiusra max. | — | 0.2 mm | — |
| Product characteristics | |||
| Design, bearing outer ringF | Flange | — | — |
| Type of Seal2Z | Non-contact shield on both sides | — | — |
| Tolerance classPN | Normal (ISO 492:2023) | — | — |
| Dimensional / heat stabilizationSN | Rings dimensional stabilized up to 120° | — | — |
| Radial internal clearanceCN (Group N) | Normal internal clearance | — | — |
| Product Identity | |||
| Construction | Deep groove ball bearing F60..-2Z, single row, with flange, shields, steel sheet metal cage | — | — |
| Short Description | Deep groove ball bearing | — | — |
| Reference mass | |||
| Approximate catalogue mass (open) | — | 2.53 g | — |
| Technical Data | |||
| d | — | — | 12 mm |
| B | — | — | 4 mm |
| R(Min.) | — | — | 0.2 mm |
| Bore Diameter (D) | 4 mm | — | — |
| Basic Load Ratings : Cr | — | — | 1.20 kN |
| Outside Diameter (D) | 12 mm | — | — |
| Basic Load Ratings : C0R | — | — | 0.35 kN |
| Width (B) | 4 mm | — | — |
| Fatigue Load Limit : Cu | — | — | 0.009 kN |
| Basic Dynamic Load Rating, Radial (Cr) | 959 N | — | — |
| Factor : F0 | — | — | 12.4 |
| Basic Static Load Rating, Radial (C0R) | 347 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 54000 min-1 |
| Operating Temperature Min. (Tmin) | -30 °C | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 65000 min-1 |
| Limiting Speed (Ng) | 69,000 1/min | — | — |
| Dimensions Of Flange D1 | — | — | 13.5 mm |
| Operating Temperature Max. (Tmax) | 120 °C | — | — |
| Dimensions Of Flange C1 | — | — | 1 mm |
| Reference Speed (Nϑr) | 55,000 1/min | — | — |
| Da(Min.) | — | — | 5.6 mm |
| Calculation Factor (F0) | 12.4 | — | — |
| Ra(Max.) | — | — | 0.2 mm |
| Width Flange (Bf) | 1 mm | — | — |
| Mass(Refer.) | — | — | 2.3 g |
| Outer Diameter Flange (Df) | 13.5 mm | — | — |
| Fatigue Load Limit, Radial (Cur) | 9.3 N | — | — |
| Shoulder Diameter Inner Ring (D1) | 6.15 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | 0.2 mm | — | — |
| Caliber Diameter Inner Ring (D1) | 5.6 mm | — | — |
| Shoulder Diameter Outer Ring (D1) | 8.95 mm | — | — |
| Caliber Diameter Outer Ring (D1) | 9.85 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.