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
“NJ260” 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 | NSKNJ260M300 × 540 × 85 mm | KOYONJ260300 × 540 × 85 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | NSK | KOYO |
| Designation | NJ260M | NJ260 |
| Product family | Cylindrical roller bearing | Single-row / NJ |
| Detailed type | Cylindrical roller bearings | Cylindrical roller bearings |
| Bore diameterd | 300 mm | 300 mm |
| Outside diameterD | 540 mm | 540 mm |
| WidthB | 85 mm | 85 mm |
| Basic dynamic load ratingC | 1730 kN | 1690 kN |
| Basic static load ratingC0 | 2070 kN | 1960 kN |
| Fatigue load limitPu | — | 206 kN |
| Limiting speednG | — | 920 r/min |
| Mass≈m | — | 92.9 kg |
| Cage | Machined brass | — |
| Boundary dimensions | ||
| Bearing widthB | 85 mm | — |
| Minimum bearing chamferr min. | 5 mm | — |
| Minimum secondary bearing chamferr1 min. | 5 mm | — |
| Roller inscribed circle diameterFw | 364 mm | — |
| Catalogue reference mass | ||
| Approximate shared-row mass — not separately stated for each rib arrangement | 89.2 kg | — |
| Classification | ||
| Official Category Path | — | Cylindrical roller bearings - Single-row - NJ |
| Official Classification 1 | — | Cylindrical roller bearings / Single-row / NJ |
| Construction | ||
| Single-row construction type | NJ | — |
| Rib arrangement | Two outer-ring ribs; one inner-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 | 1730000 N | — |
| Basic static radial load ratingC0r | 2070000 N | — |
| Lubrication-qualified speed — standard cage | ||
| Thermal speed rating — oil bath | 1200 r/min | — |
| Mechanical limiting speed — forced oil circulation | Not stated in this catalogue row | — |
| Limiting speed — grease | 1100 r/min | — |
| Limiting speed — oil bath | 1300 r/min | — |
| Manufacturer Identity | ||
| Official Class Key | — | 040-010-000 |
| Mounting dimensions — shown arrangement | ||
| Minimum shaft shoulder diameterdb min. | 320 mm | — |
| Maximum housing shoulder diameterDa max. | 520 mm | — |
| Maximum adjusting-ring diameter (NU/NJ arrangement)db max. | 358 mm | — |
| Maximum adjacent fillet radiusra max. | 4 mm | — |
| Maximum secondary adjacent fillet radiusrb max. | 4 mm | — |
| Technical Data | ||
| d | — | 540 mm |
| B | — | 85 mm |
| R(Min.) | — | 5 mm |
| R1(Min.) | — | 5 mm |
| Fw | — | 364 mm |
| Ew | — | - mm |
| Basic Load Ratings : Cr | — | 1690 kN |
| Basic Load Ratings : C0R | — | 1960 kN |
| Fatigue Load Limit : Cu | — | 206 kN |
| Limiting Speeds(Grease Lub.) | — | 920 min-1 |
| Limiting Speeds(Oil Lub.) | — | 1100 min-1 |
| Sd1 | — | - mm |
| B1 | — | - mm |
| B2 | — | - mm |
| Da(Min.) | — | - mm |
| Db(Min.) | — | - mm |
| Db(Max.) | — | - mm |
| Dc(Min.) | — | - mm |
| Dd(Min.) | — | - mm |
| Da(Max.) | — | 520 mm |
| Ra(Max.) | — | 4 mm |
| Rb(Max.) | — | 4 mm |
| Mass(Refer.) | — | 92.9 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.