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
“NF344” across 2 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 | NSKNF344M220 × 460 × 88 mm | KOYONF344220 × 460 × 88 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | NSK | KOYO |
| Designation | NF344M | NF344 |
| Product family | Cylindrical roller bearing | Single-row / NF |
| Detailed type | Cylindrical roller bearings | Cylindrical roller bearings |
| Bore diameterd | 220 mm | 220 mm |
| Outside diameterD | 460 mm | 460 mm |
| WidthB | 88 mm | 88 mm |
| Basic dynamic load ratingC | 1470 kN | 1490 kN |
| Basic static load ratingC0 | 1570 kN | 1570 kN |
| Fatigue load limitPu | — | 176 kN |
| Limiting speednG | — | 1100 r/min |
| Mass≈m | — | 78.4 kg |
| Cage | Machined brass | — |
| Boundary dimensions | ||
| Bearing widthB | 88 mm | — |
| Minimum bearing chamferr min. | 5 mm | — |
| Minimum secondary bearing chamferr1 min. | 5 mm | — |
| Roller circumscribed circle diameterEw | 396 mm | — |
| Catalogue reference mass | ||
| Approximate shared-row mass — not separately stated for each rib arrangement | 72.8 kg | — |
| Classification | ||
| Official Category Path | — | Cylindrical roller bearings - Single-row - NF |
| Official Classification 1 | — | Cylindrical roller bearings / Single-row / NF |
| Construction | ||
| Single-row construction type | NF | — |
| Rib arrangement | Two inner-ring ribs; one outer-ring rib | — |
| Standard cage material | Machined brass | — |
| Standard cage marking | M | — |
| Other cage codes listed for this catalogue row | None listed in this row | — |
| Precision — designation omission rule | ISO Normal when no precision suffix is specified | — |
| Clearance identification — verify interchangeability | No clearance suffix shown. CN omission applies to interchangeable designs; do not infer a numerical clearance. | — |
| Optimized crowning note | No optimized-crowning asterisk on this row | — |
| Load ratings — standard cage | ||
| Basic dynamic radial load ratingCr | 1470000 N | — |
| Basic static radial load ratingC0r | 1570000 N | — |
| Lubrication-qualified speed — standard cage | ||
| Thermal speed rating — oil bath | 1400 r/min | — |
| Mechanical limiting speed — forced oil circulation | Not stated in this catalogue row | — |
| Limiting speed — grease | 1200 r/min | — |
| Limiting speed — oil bath | 1500 r/min | — |
| Manufacturer Identity | ||
| Official Class Key | — | 040-010-000 |
| Mounting dimensions — shown arrangement | ||
| Minimum shaft shoulder diameterda min. | 240 mm | — |
| Maximum housing shoulder diameterDb max. | 440 mm | — |
| Minimum housing shoulder diameterDb min. | 403 mm | — |
| Maximum adjacent fillet radiusra max. | 4 mm | — |
| Maximum secondary adjacent fillet radiusrb max. | 4 mm | — |
| Technical Data | ||
| d | — | 460 mm |
| B | — | 88 mm |
| R(Min.) | — | 5 mm |
| R1(Min.) | — | 5 mm |
| Fw | — | - mm |
| Ew | — | 396 mm |
| Basic Load Ratings : Cr | — | 1490 kN |
| Basic Load Ratings : C0R | — | 1570 kN |
| Fatigue Load Limit : Cu | — | 176 kN |
| Limiting Speeds(Grease Lub.) | — | 1100 min-1 |
| Limiting Speeds(Oil Lub.) | — | 1500 min-1 |
| Sd1 | — | - mm |
| B1 | — | - mm |
| B2 | — | - mm |
| Da(Min.) | — | 240 mm |
| Db(Min.) | — | 400 mm |
| Db(Max.) | — | 440 mm |
| Dc(Min.) | — | - mm |
| Dd(Min.) | — | - mm |
| Da(Max.) | — | - mm |
| Ra(Max.) | — | 4 mm |
| Rb(Max.) | — | 4 mm |
| Mass(Refer.) | — | 78.4 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.