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.
Dimensions verified
“NUP2304” across 4 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 2304 ECP20 × 52 × 21 mm | FAGNUP2304-E-XL-TVP220 × 52 × 21 mm | NSKNUP2304M20 × 52 × 21 mm | KOYONUP230420 × 52 × 21 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | FAG | NSK | KOYO |
| Designation | NUP 2304 ECP | NUP2304-E-XL-TVP2 | NUP2304M | NUP2304 |
| 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 | Cylindrical roller bearings |
| Series | — | NUP2304 | — | — |
| Bore diameterd | 20 mm | 20 mm | 20 mm | 20 mm |
| Outside diameterD | 52 mm | 52 mm | 52 mm | 52 mm |
| WidthB | 21 mm | 21 mm | 21 mm | 21 mm |
| Basic dynamic load ratingC | 47.5 kN | 49.5 kN | 40.5 kN | 38 kN |
| Basic static load ratingC0 | 38 kN | 39 kN | 30 kN | 30.2 kN |
| Fatigue load limitPu | 4.8 kN | 6.3 kN | — | 3.6 kN |
| Reference speednref | 15000 r/min | 9700 r/min | — | — |
| Limiting speednG | 18000 r/min | 19700 r/min | — | 11000 r/min |
| Mass≈m | 0.222 kg | 0.224 kg | — | 0.226 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | — |
| Sealing | Without | — | — | — |
| Cage | Non-metallic | TVP2 — Solid Window Cage made from PA66 | Machined brass | — |
| Lubricant | None | — | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — |
| Maximum operating temperatureTmax | — | 120 °C | — | — |
| Boundary dimensions | ||||
| Bearing widthB | — | — | 21 mm | — |
| Minimum bearing chamferr min. | — | — | 1.1 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | 0.6 mm | — |
| Roller inscribed circle diameterFw | — | — | 28.5 mm | — |
| Capabilities & suitability | ||||
| Radial load capacity | — | Yes | — | — |
| Axial load capacity in one direction | — | Yes | — | — |
| Axial load capacity in both directions | — | Yes | — | — |
| Suitable for grease lubrication | — | Yes | — | — |
| Suitable for oil lubrication | — | Yes | — | — |
| Unsealed design | — | Yes | — | — |
| Catalogue reference mass | ||||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | — | 0.217 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 | — | — | No optimized-crowning asterisk on this row | — |
| Dimensions | ||||
| Minimum chamfer dimensionrmin | — | 1.1 mm | — | — |
| Minimum chamfer dimensionrmin | — | 0.043 in | — | — |
| Minimum chamfer dimensionr1 min | — | 0.6 mm | — | — |
| Minimum chamfer dimensionr1 min | — | 0.024 in | — | — |
| Raceway diameter outer ringE | — | 45.5 mm | — | — |
| Raceway diameter outer ringE | — | 1.791 in | — | — |
| Raceway diameter inner ringF | — | 27.5 mm | — | — |
| Raceway diameter inner ringF | — | 1.083 in | — | — |
| Width of loose ribB3 | — | 3.5 mm | — | — |
| Width of loose ribB3 | — | 0.138 in | — | — |
| Engineering — Abutment dimensions | ||||
| Diameter of spacer sleeved a | min. 26.1 mm | — | — | — |
| Diameter of shaft abutmentd b | min. 33 mm | — | — | — |
| Diameter of housing abutmentD a | max. 45.4 mm | — | — | — |
| Radius of filletr a | max. 1 mm | — | — | — |
| Engineering — Calculation data | ||||
| SKF performance class | SKF Explorer | — | — | — |
| Minimum load factork r | 0.25 | — | — | — |
| Limiting valuee | 0.3 | — | — | — |
| Calculation factorY | 0.4 | — | — | — |
| Engineering — Dimensions | ||||
| Shoulder diameter of inner ringd 1 | ≈ 31.2 mm | — | — | — |
| Shoulder diameter of outer ringD 1 | ≈ 41.85 mm | — | — | — |
| Raceway diameter of inner ringF | 27.5 mm | — | — | — |
| Chamfer dimensionr 1,2 | min. 1.1 mm | — | — | — |
| Chamfer dimension of loose flange ringr 3,4 | min. 0.6 mm | — | — | — |
| Load ratings — standard cage | ||||
| Basic dynamic radial load ratingCr | — | — | 40500 N | — |
| Basic static radial load ratingC0r | — | — | 30000 N | — |
| Logistics | ||||
| Product net weight | 0.222 kg | — | — | — |
| eClass code | 23-05-09-01 | — | — | — |
| UNSPSC code | 31171505 | — | — | — |
| Lubrication-qualified speed — standard cage | ||||
| Thermal speed rating — oil bath | — | — | 14000 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | — | Not stated in this catalogue row | — |
| Limiting speed — grease | — | — | 11000 r/min | — |
| Limiting speed — oil bath | — | — | 14000 r/min | — |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | — | 49,500 N | — | — |
| Basic dynamic load rating, radialCr | — | 11,128.597 lbf | — | — |
| Basic static load rating, radialC0r | — | 39,000 N | — | — |
| Basic static load rating, radialC0r | — | 8,767.986 lbf | — | — |
| Fatigue load limit, radialCur | — | 6,300 N | — | — |
| Fatigue load limit, radialCur | — | 1,416.367 lbf | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 373873 | — | — |
| Official Class Key | — | — | — | 040-010-000 |
| Base Type | — | NUP2304 | — | — |
| Old Designation | — | ["NUP2304-E-TVP2","NUP2304E.TVP2"] | — | — |
| Gpsd Group | — | F01 | — | — |
| Product Line Id | — | 12 | — | — |
| X Life Marking | — | XL | — | — |
| SAP material number | — | 0167411880000 | — | — |
| Base product | — | 2305090122 | — | — |
| Bearing X designation | — | NUP2304-E-XL-TVP2 | — | — |
| Mounting Manager ID | — | NUP2304-E-XL-TVP2 | — | — |
| Grease application ID | — | NUP2304-E-XL-TVP2 | — | — |
| Mounting dimensions | ||||
| Maximum rib diameter inner ringd1 | — | 31.3 mm | — | — |
| Maximum rib diameter inner ringd1 | — | 1.232 in | — | — |
| Minimum rib diameter outer ringD1 min | — | 42.4 mm | — | — |
| Minimum rib diameter outer ringD1 min | — | 1.669 in | — | — |
| Minimum diameter shaft shoulderda min | — | 24 mm | — | — |
| Minimum diameter shaft shoulderda min | — | 0.945 in | — | — |
| Minimum shaft shoulderdc min | — | 33 mm | — | — |
| Minimum shaft shoulderdc min | — | 1.299 in | — | — |
| Maximum diameter of housing shoulderDa max | — | 45 mm | — | — |
| Maximum diameter of housing shoulderDa max | — | 1.772 in | — | — |
| Maximum recess radiusra max | — | 1 mm | — | — |
| Maximum recess radiusra max | — | 0.039 in | — | — |
| Mounting dimensions — shown arrangement | ||||
| Minimum shaft shoulder diameterdb min. | — | — | 24 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | 45.5 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | 1 mm | — |
| Maximum secondary adjacent fillet radiusrb max. | — | — | 0.6 mm | — |
| Product characteristics | ||||
| DesignE | — | Increased Capacity Design | — | — |
| Radial internal clearanceCN (Group N) | — | Normal internal clearance | — | — |
| Tolerance classPN | — | Normal (ISO 492:2023) | — | — |
| Number of rows1 | — | Single-row design | — | — |
| 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 | — | — | — |
| Product Identity | ||||
| Construction | — | Cylindrical roller bearing NUP..-E-XL-TVP2, with cage, single row, locating bearing, 2 ribs on outer ring, 1 rib on inner ring, rib washer internal, type NUP | — | — |
| Short Description | — | Cylindrical roller bearing | — | — |
| 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 | 0.82 kg CO 2 e | — | — | — |
| Technical Data | ||||
| d | — | — | — | 52 mm |
| B | — | — | — | 21 mm |
| R(Min.) | — | — | — | 1.1 mm |
| R1(Min.) | — | — | — | 0.6 mm |
| Bore Diameter (D) | — | 20 mm | — | — |
| Fw | — | — | — | 28.5 mm |
| Outside Diamater (D) | — | 52 mm | — | — |
| Ew | — | — | — | - mm |
| Total Width (B) | — | 21 mm | — | — |
| Basic Load Ratings : Cr | — | — | — | 38.0 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 49,500 N | — | — |
| Basic Load Ratings : C0R | — | — | — | 30.2 kN |
| Basic Static Load Rating, Radial (C0R) | — | 39,000 N | — | — |
| Fatigue Load Limit : Cu | — | — | — | 3.60 kN |
| Raceway Diameter Inner Ring (F) | — | 27.5 mm | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | 11000 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | 16000 min-1 |
| Minimum Diameter Shaft Shoulder (Da) | — | 24 mm | — | — |
| Sd1 | — | — | — | - mm |
| Width Of Loose Rib (B3) | — | 3.5 mm | — | — |
| B1 | — | — | — | - mm |
| Operating Temperature Max. (Tmax) | — | 120 °C | — | — |
| B2 | — | — | — | - mm |
| Limiting Speed (Limiting Spe) | — | 19,700 1/min | — | — |
| Da(Min.) | — | — | — | 26.5 mm |
| Minimum Shaft Shoulder (Dc Min) | — | 33 mm | — | — |
| Db(Min.) | — | — | — | - mm |
| Reference Speed (Nϑr) | — | 9,700 1/min | — | — |
| Db(Max.) | — | — | — | - mm |
| Maximum Recess Radius (Ra Max) | — | 1 mm | — | — |
| Dc(Min.) | — | — | — | - mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 45 mm | — | — |
| Dd(Min.) | — | — | — | - mm |
| Maximum Rib Diameter Inner Ring (D1) | — | 31.3 mm | — | — |
| Da(Max.) | — | — | — | 45.5 mm |
| Minimum Chamfer Dimension (R1 Min) | — | 0.6 mm | — | — |
| Minimum Rib Diameter Outer Ring (D1 Min) | — | 42.4 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 1.1 mm | — | — |
| Ra(Max.) | — | — | — | 1 mm |
| Raceway Diameter Outer Ring (E) | — | 45.5 mm | — | — |
| Rb(Max.) | — | — | — | 0.6 mm |
| Fatigue Load Limit, Radial (Cur) | — | 6,300 N | — | — |
| Mass(Refer.) | — | — | — | 0.226 kg |
| Temperature range | ||||
| Operating temperature min.Tmin | — | -30 °C | — | — |
| Operating temperature min.Tmin | — | -22 °F | — | — |
| Operating temperature max.Tmax | — | 120 °C | — | — |
| Operating temperature max.Tmax | — | 248 °F | — | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.