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| Parameter | NSK680215 × 24 × 5 mm | KOYO680215 × 24 × 5 mm | NACHI680215 × 24 × 5 mm | NTN680215 × 24 × 5 mm | EZO680215 × 24 × 5 mm |
|---|---|---|---|---|---|
| Comparable specifications | |||||
| Brand | NSK | KOYO | NACHI | NTN | EZO |
| Designation | 6802 | 6802 | 6802 | 6802 | 6802 |
| Product family | Single row deep groove ball bearings | Single-row / Open type | Deep groove ball bearing | Single row deep groove ball bearings | Thin-Section Ball Bearing |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Bore diameterd | 15 mm | 15 mm | 15 mm | 15 mm | 15 mm |
| Outside diameterD | 24 mm | 24 mm | 24 mm | 24 mm | 24 mm |
| WidthB | 5 mm | 5 mm | 5 mm | 5 mm | 5 mm |
| Basic dynamic load ratingC | 2.28 kN | 2.6 kN | 2.61 kN | 2.3 kN | 2.07 kN |
| Basic static load ratingC0 | 1.26 kN | 1.25 kN | 1.26 kN | 1.26 kN | 1.26 kN |
| Fatigue load limitPu | — | 0.05 kN | — | 0.091 kN | — |
| Limiting speednG | — | 28000 r/min | — | — | — |
| Mass≈m | 0.007 kg | 0.007 kg | 0.007 kg | 0.007 kg | 0.00628 kg |
| Internal clearance | — | — | — | CN | — |
| Sealing | Open | Open | Open | open | Open (no closure suffix in this catalogue marking) |
| Cage | — | — | — | pressed steel cage | — |
| Bearing material | — | — | — | — | High-carbon chromium bearing steel |
| Minimum operating temperatureTmin | — | — | — | -40 °C | — |
| Maximum operating temperatureTmax | — | — | — | 120 °C | — |
| Boundary dimensions | |||||
| Bearing widthB | 5 mm | — | 5 mm | — | — |
| Outer diameterD | — | — | — | — | 24 mm |
| Minimum bearing chamferr min. | 0.3 mm | — | 0.3 mm | — | — |
| Outer diameterD | — | — | — | — | 0.9449 inch |
| Inner ring widthB | — | — | — | — | 5 mm |
| Inner ring widthB | — | — | — | — | 0.1969 inch |
| Outer ring widthC | — | — | — | — | 5 mm |
| Outer ring widthC | — | — | — | — | 0.1969 inch |
| Inner ring chamfer dimensionr si min | — | — | — | — | 0.3 mm |
| Inner ring chamfer dimensionr si min | — | — | — | — | 0.0118 inch |
| Outer ring chamfer dimensionr se min | — | — | — | — | 0.3 mm |
| Outer ring chamfer dimensionr se min | — | — | — | — | 0.0118 inch |
| Classification | |||||
| Official Category Path | — | Deep groove ball bearings - Single-row - Open type | — | — | — |
| Official Classification 1 | — | Deep groove ball bearings / Single-row / Open type | — | — | — |
| Construction | |||||
| Closure arrangement | — | — | Open | — | — |
| Listed closure suffix | — | — | None (open type) | — | — |
| Catalogue closure construction | Open | — | — | — | — |
| Closure interpretation | — | — | — | — | Open (no closure suffix in this catalogue marking) |
| Material interpretation | — | — | — | — | High-carbon chromium bearing steel |
| Dimensions and properties | |||||
| Internal diameterd | — | — | — | 15 mm | — |
| External diameterD | — | — | — | 24 mm | — |
| Bearing/Inner ring widthB | — | — | — | 5 mm | — |
| Min fillet radiusrs | — | — | — | 0.3 mm | — |
| Radial clearance class | — | — | — | CN | — |
| Equivalent-load factors | |||||
| Catalogue load calculation factorf0 | — | — | 15.8 | — | — |
| Load ratings | |||||
| Basic dynamic radial load ratingCr | 2280 N | — | 2610 N | — | — |
| Basic static radial load ratingC0r | 1260 N | — | 1260 N | — | — |
| Equivalent-load calculation factorf0 | 15.8 | — | — | — | — |
| Lubrication-qualified speed | |||||
| Limiting speed with grease | 28000 r/min | — | — | — | — |
| Limiting speed with oil (open bearing) | 34000 r/min | — | — | — | — |
| Limiting speed with grease (open) | — | — | 28000 r/min | — | — |
| Limiting speed with oil (open) | — | — | 34000 r/min | — | — |
| Catalogue limiting speed (grease) | — | — | — | — | 26000 r/min |
| Catalogue limiting speed (oil) | — | — | — | — | 31000 r/min |
| Manufacturer Identity | |||||
| Official Class Key | — | 010-010-010 | — | — | — |
| Mounting dimensions | |||||
| Minimum shaft shoulder diameterda min. | 17 mm | — | 17 mm | — | — |
| Maximum shaft shoulder diameterda max. | 17 mm | — | — | — | — |
| Maximum housing shoulder diameterDa max. | 22 mm | — | 22 mm | — | — |
| Maximum adjacent fillet radiusra max. | — | — | 0.3 mm | — | — |
| Maximum shaft or housing fillet radiusra max. | 0.3 mm | — | — | — | — |
| Min shoulder diameter IRda min | — | — | — | 17 mm | — |
| Max shoulder diameter ORDa max | — | — | — | 22 mm | — |
| Max shaft & housing fillet radiusra max | — | — | — | 0.3 mm | — |
| Adjacent mounting dimension (da min)da min | — | — | — | — | 22.5 mm |
| Adjacent mounting dimension (da min)da min | — | — | — | — | 0.8858 inch |
| Adjacent mounting dimension (da max)da max | — | — | — | — | 22.5 mm |
| Adjacent mounting dimension (da max)da max | — | — | — | — | 0.8858 inch |
| Adjacent mounting dimension (r asi max)r asi max | — | — | — | — | 0.3 mm |
| Adjacent mounting dimension (r asi max)r asi max | — | — | — | — | 0.0118 inch |
| Adjacent mounting dimension (r ase max)r ase max | — | — | — | — | 0.3 mm |
| Adjacent mounting dimension (r ase max)r ase max | — | — | — | — | 0.0118 inch |
| Performance | |||||
| Dynamic loadC | — | — | — | 2.3 kN | — |
| Static loadC0 | — | — | — | 1.26 kN | — |
| Fatigue limit loadCu | — | — | — | 0.091 kN | — |
| Coefficientf0 | — | — | — | 15.8 | — |
| Oil lubrication limit speedN lim | — | — | — | 31000 r/min | — |
| Grease lubrication limit speedN lim | — | — | — | 26000 r/min | — |
| Min operating temperatureTmin | — | — | — | -40 °C | — |
| Max operating temperatureTmax | — | — | — | 120 °C | — |
| Product characteristics | |||||
| Catalogue construction | — | — | — | Deep groove ball bearing, radial contact, pressed steel cage, open | — |
| Cage construction | — | — | — | pressed steel cage | — |
| Closure construction | — | — | — | open | — |
| Reference mass | |||||
| Catalogue row mass (variants not individually specified) | — | — | 0.007 kg | — | — |
| Approximate catalogue mass (open reference) | 0.007 kg | — | — | — | — |
| Reference mass | — | — | — | — | 6.28 g |
| Rolling elements | |||||
| Ball diameterDw | — | — | — | — | 2.381 mm |
| Ball quantityZ | — | — | — | — | 14 |
| Technical Data | |||||
| d | — | 24 mm | — | — | — |
| B | — | 5 mm | — | — | — |
| R(Min.) | — | 0.3 mm | — | — | — |
| Basic Load Ratings : Cr | — | 2.60 kN | — | — | — |
| Basic Load Ratings : C0R | — | 1.25 kN | — | — | — |
| Fatigue Load Limit : Cu | — | 0.050 kN | — | — | — |
| Factor : F0 | — | 15.8 | — | — | — |
| Limiting Speeds(Grease Lub.) | — | 28000 min-1 | — | — | — |
| Limiting Speeds(Oil Lub.) | — | 33000 min-1 | — | — | — |
| Da(Min.) | — | 17 mm | — | — | — |
| Da(Max.) | — | 22 mm | — | — | — |
| Ra(Max.) | — | 0.3 mm | — | — | — |
| Mass(Refer.) | — | 0.007 kg | — | — | — |
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.