Cross-brand designation analysis
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Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Designation candidates
“6910” across 3 loaded brands
One highest-ranked designation candidate is shown per manufacturer. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | NSK691050 × 72 × 12 mm | KOYO691050 × 72 × 12 mm | NACHI691050 × 72 × 12 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | NSK | KOYO | NACHI |
| Designation | 6910 | 6910 | 6910 |
| Product family | Single row deep groove ball bearings | Single-row / Open type | Deep groove ball bearing |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Bore diameterd | 50 mm | 50 mm | 50 mm |
| Outside diameterD | 72 mm | 72 mm | 72 mm |
| WidthB | 12 mm | 12 mm | 12 mm |
| Basic dynamic load ratingC | 16 kN | 18.2 kN | 18.3 kN |
| Basic static load ratingC0 | 11.7 kN | 11.7 kN | 11.7 kN |
| Fatigue load limitPu | — | 0.64 kN | — |
| Limiting speednG | — | 9000 r/min | — |
| Mass≈m | 0.135 kg | 0.133 kg | 0.125 kg |
| Sealing | Open | Open | Open |
| Boundary dimensions | |||
| Bearing widthB | 12 mm | — | 12 mm |
| Minimum bearing chamferr min. | 0.6 mm | — | 0.6 mm |
| 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 | — | — |
| Equivalent-load factors | |||
| Catalogue load calculation factorf0 | — | — | 16.1 |
| Load ratings | |||
| Basic dynamic radial load ratingCr | 16000 N | — | 18300 N |
| Basic static radial load ratingC0r | 11700 N | — | 11700 N |
| Equivalent-load calculation factorf0 | 16.1 | — | — |
| Lubrication-qualified speed | |||
| Limiting speed with grease | 9000 r/min | — | — |
| Limiting speed with oil (open bearing) | 11000 r/min | — | — |
| Limiting speed with grease (open) | — | — | 9500 r/min |
| Limiting speed with oil (open) | — | — | 11000 r/min |
| Manufacturer Identity | |||
| Official Class Key | — | 010-010-010 | — |
| Mounting dimensions | |||
| Minimum shaft shoulder diameterda min. | 54 mm | — | 54 mm |
| Maximum shaft shoulder diameterda max. | 55 mm | — | — |
| Maximum housing shoulder diameterDa max. | 68 mm | — | 68 mm |
| Maximum adjacent fillet radiusra max. | — | — | 0.6 mm |
| Maximum shaft or housing fillet radiusra max. | 0.6 mm | — | — |
| Reference mass | |||
| Catalogue row mass (variants not individually specified) | — | — | 0.125 kg |
| Approximate catalogue mass (open reference) | 0.135 kg | — | — |
| Technical Data | |||
| d | — | 72 mm | — |
| B | — | 12 mm | — |
| R(Min.) | — | 0.6 mm | — |
| Basic Load Ratings : Cr | — | 18.2 kN | — |
| Basic Load Ratings : C0R | — | 11.7 kN | — |
| Fatigue Load Limit : Cu | — | 0.640 kN | — |
| Factor : F0 | — | 16.1 | — |
| Limiting Speeds(Grease Lub.) | — | 9000 min-1 | — |
| Limiting Speeds(Oil Lub.) | — | 11000 min-1 | — |
| Da(Min.) | — | 54 mm | — |
| Da(Max.) | — | 68 mm | — |
| Ra(Max.) | — | 0.6 mm | — |
| Mass(Refer.) | — | 0.133 kg | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.