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.
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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.
Dimensions verified
“NUP328” across 3 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKFNUP 328 ECJ140 × 300 × 62 mm | NSKNUP328EM140 × 300 × 62 mm | KOYONUP328R140 × 300 × 62 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | NSK | KOYO |
| Designation | NUP 328 ECJ | NUP328EM | NUP328R |
| Product family | Cylindrical roller bearings | Cylindrical roller bearing | Single-row / NUP |
| Detailed type | Single row cylindrical roller bearing, nup design | Cylindrical roller bearings | Cylindrical roller bearings |
| Bore diameterd | 140 mm | 140 mm | 140 mm |
| Outside diameterD | 300 mm | 300 mm | 300 mm |
| WidthB | 62 mm | 62 mm | 62 mm |
| Basic dynamic load ratingC | 780 kN | 815 kN | 829 kN |
| Basic static load ratingC0 | 830 kN | 795 kN | 797 kN |
| Fatigue load limitPu | 88 kN | — | 99.4 kN |
| Reference speednref | 2400 r/min | — | — |
| Limiting speednG | 2800 r/min | — | 1900 r/min |
| Mass≈m | 21.3 kg | — | 21.4 kg |
| Internal clearance | CN | — | — |
| Sealing | Without | — | — |
| Cage | Sheet metal | Machined brass | — |
| Lubricant | None | — | — |
| Boundary dimensions | |||
| Bearing widthB | — | 62 mm | — |
| Minimum bearing chamferr min. | — | 4 mm | — |
| Minimum secondary bearing chamferr1 min. | — | 4 mm | — |
| Roller inscribed circle diameterFw | — | 180 mm | — |
| Catalogue reference mass | |||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | 22.8 kg | — |
| Classification | |||
| Official Category Path | — | — | Cylindrical roller bearings - Single-row - NUP |
| Official Classification 1 | — | — | Cylindrical roller bearings / Single-row / NUP |
| Construction | |||
| Single-row construction type | — | NUP | — |
| Rib arrangement | — | Two outer-ring ribs; one integral and one loose 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 | — | Catalogue asterisk: optimized crowning may be available; not verified as fitted | — |
| Engineering — Abutment dimensions | |||
| Diameter of spacer sleeved a | min. 157 mm | — | — |
| Diameter of shaft abutmentd b | min. 199 mm | — | — |
| Diameter of housing abutmentD a | max. 282.5 mm | — | — |
| Radius of filletr a | max. 3 mm | — | — |
| Engineering — Calculation data | |||
| SKF performance class | SKF Explorer | — | — |
| Minimum load factork r | 0.15 | — | — |
| Limiting valuee | 0.2 | — | — |
| Calculation factorY | 0.6 | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter of inner ringd 1 | ≈ 195 mm | — | — |
| Shoulder diameter of outer ringD 1 | ≈ 250.6 mm | — | — |
| Raceway diameter of inner ringF | 180 mm | — | — |
| Chamfer dimensionr 1,2 | min. 4 mm | — | — |
| Chamfer dimension of loose flange ringr 3,4 | min. 4 mm | — | — |
| Load ratings — standard cage | |||
| Basic dynamic radial load ratingCr | — | 815000 N | — |
| Basic static radial load ratingC0r | — | 795000 N | — |
| Logistics | |||
| Product net weight | 21.3 kg | — | — |
| eClass code | 23-05-09-01 | — | — |
| UNSPSC code | 31171505 | — | — |
| Lubrication-qualified speed — standard cage | |||
| Thermal speed rating — oil bath | — | 2400 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | 4000 r/min | — |
| Limiting speed — grease | — | 2000 r/min | — |
| Limiting speed — oil bath | — | 2400 r/min | — |
| Manufacturer Identity | |||
| Official Class Key | — | — | 040-010-000 |
| Mounting dimensions — shown arrangement | |||
| Minimum shaft shoulder diameterdb min. | — | 156 mm | — |
| Maximum housing shoulder diameterDa max. | — | 284 mm | — |
| Maximum adjacent fillet radiusra max. | — | 3 mm | — |
| Maximum secondary adjacent fillet radiusrb max. | — | 3 mm | — |
| Product identity | |||
| Official product category | Cylindrical roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/cylindrical-roller-bearings/single-row-cylindrical-roller-bearings | — | — |
| Structure group ID | BC1_001_101 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Properties | |||
| Bearing part | Complete bearing | — | — |
| Axial displacement capability | None | — | — |
| Number of rows | 1 | — | — |
| Locating feature, bearing outer ring | Without | — | — |
| Bore type | Cylindrical | — | — |
| Number of flanges, outer ring | 2 | — | — |
| Number of flanges, inner ring | 1 | — | — |
| Loose flange | Inner ring loose flange | — | — |
| Radial internal clearance | CN | — | — |
| Tolerance class | Normal | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Indicative carbon footprint for new product | 78.7 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 300 mm |
| B | — | — | 62 mm |
| R(Min.) | — | — | 4 mm |
| R1(Min.) | — | — | 4 mm |
| Fw | — | — | 180 mm |
| Ew | — | — | - mm |
| Basic Load Ratings : Cr | — | — | 829 kN |
| Basic Load Ratings : C0R | — | — | 797 kN |
| Fatigue Load Limit : Cu | — | — | 99.4 kN |
| Limiting Speeds(Grease Lub.) | — | — | 1900 min-1 |
| Limiting Speeds(Oil Lub.) | — | — | 2500 min-1 |
| Sd1 | — | — | - mm |
| B1 | — | — | - mm |
| B2 | — | — | - mm |
| Da(Min.) | — | — | 156 mm |
| Db(Min.) | — | — | - mm |
| Db(Max.) | — | — | - mm |
| Dc(Min.) | — | — | - mm |
| Dd(Min.) | — | — | - mm |
| Da(Max.) | — | — | 284 mm |
| Ra(Max.) | — | — | 3 mm |
| Rb(Max.) | — | — | 3 mm |
| Mass(Refer.) | — | — | 21.4 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.