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| Parameter | NSKF6977 × 17 × 5 mm | KOYOF6977 × 17 × 5 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | NSK | KOYO |
| Designation | F697 | F697 |
| 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 |
| Bore diameterd | 7 mm | 7 mm |
| Outside diameterD | 17 mm | 17 mm |
| WidthB | 5 mm | 5 mm |
| Basic dynamic load ratingC | 1.77 kN | 2 kN |
| Basic static load ratingC0 | 0.715 kN | 0.71 kN |
| Fatigue load limitPu | — | 0.02 kN |
| Limiting speednG | — | 42000 r/min |
| Mass≈m | 0.00565 kg | 0.005 kg |
| Sealing | Open | Open |
| Boundary dimensions | ||
| Body outside diameterD | 17 mm | — |
| Bearing width (open)B | 5 mm | — |
| Minimum bearing chamferr min. | 0.3 mm | — |
| 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 | — |
| Flange dimensions | ||
| Flange outside diameterD1 | 19 mm | — |
| Flange widthC1 | 1.2 mm | — |
| Load ratings | ||
| Basic dynamic radial load ratingCr | 1770 N | — |
| Basic static radial load ratingC0r | 715 N | — |
| Lubrication-qualified speed | ||
| Limiting speed with grease | 36000 r/min | — |
| Limiting speed with oil (open) | 43000 r/min | — |
| Manufacturer Identity | ||
| Official Class Key | — | 010-020-020 |
| Mounting dimensions | ||
| Minimum shaft shoulder diameter (open)da min. | 9 mm | — |
| Maximum adjacent fillet radiusra max. | 0.3 mm | — |
| Reference mass | ||
| Approximate catalogue mass (open) | 5.65 g | — |
| Technical Data | ||
| d | — | 17 mm |
| B | — | 5 mm |
| R(Min.) | — | 0.3 mm |
| Basic Load Ratings : Cr | — | 2.00 kN |
| Basic Load Ratings : C0R | — | 0.71 kN |
| Fatigue Load Limit : Cu | — | 0.02 kN |
| Factor : F0 | — | 14.0 |
| Limiting Speeds(Grease Lub.) | — | 42000 min-1 |
| Limiting Speeds(Oil Lub.) | — | 50000 min-1 |
| Dimensions Of Flange D1 | — | 19 mm |
| Dimensions Of Flange C1 | — | 1.2 mm |
| Da(Min.) | — | 9 mm |
| Ra(Max.) | — | 0.3 mm |
| Mass(Refer.) | — | 5.8 g |
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.