Cross-brand designation analysis
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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
“NUP238” across 5 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 238 ECML190 × 340 × 55 mm | FAGNUP238-E-M1190 × 340 × 55 mm | TIMKENNUP238EMA190 × 340 × 55 mm | NSKNUP238EM190 × 340 × 55 mm | KOYONUP238R190 × 340 × 55 mm |
|---|---|---|---|---|---|
| Comparable specifications | |||||
| Brand | SKF | FAG | TIMKEN | NSK | KOYO |
| Designation | NUP 238 ECML | NUP238-E-M1 | NUP238EMA | NUP238EM | NUP238R |
| Product family | Cylindrical roller bearings | — | Cylindrical 1-Row | Cylindrical roller bearing | Single-row / NUP |
| Detailed type | Single row cylindrical roller bearing, nup design | Cylindrical roller bearings | Cylindrical roller bearings | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | — | NUP238 | EX27770 | — | — |
| Bore diameterd | 190 mm | 190 mm | 190 mm | 190 mm | 190 mm |
| Outside diameterD | 340 mm | 340 mm | 340 mm | 340 mm | 340 mm |
| WidthB | 55 mm | 55 mm | 55 mm | 55 mm | 55 mm |
| Basic dynamic load ratingC | 800 kN | 680 kN | 777 kN | 855 kN | 869 kN |
| Basic static load ratingC0 | 965 kN | 930 kN | 960 kN | 955 kN | 954 kN |
| Fatigue load limitPu | 98 kN | 112 kN | — | — | 114 kN |
| Reference speednref | 2000 r/min | 1720 r/min | — | — | — |
| Limiting speednG | 3400 r/min | 3050 r/min | — | — | 1700 r/min |
| Mass≈m | 23.4 kg | 21.4 kg | 23.1 kg | — | 24.5 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | — | — |
| Sealing | Without | — | Open | — | — |
| Cage | Machined brass | M1 — Two Piece Brass Cage Roller Guided | Window Brass cage | Machined brass | — |
| Lubricant | None | — | — | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — | — |
| Maximum operating temperatureTmax | — | 150 °C | — | — | — |
| Boundary dimensions | |||||
| Bearing widthB | — | — | — | 55 mm | — |
| Minimum bearing chamferr min. | — | — | — | 4 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | — | 4 mm | — |
| Roller inscribed circle diameterFw | — | — | — | 230 mm | — |
| Calculation Factors | |||||
| K Factor | — | — | 0.00 | — | — |
| Y1 Factor | — | — | 0.00 | — | — |
| Y2 Factor | — | — | 0.00 | — | — |
| Y0 Factor | — | — | 0.00 | — | — |
| E Factor | — | — | 0.00 | — | — |
| Cg Factor | — | — | 0.1291 | — | — |
| 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 | — | — | — |
| Largebearing | — | Yes | — | — | — |
| Catalogue reference mass | |||||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | — | — | 23 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 | — |
| Dimensions | |||||
| Minimum chamfer dimensionrmin | — | 4 mm | — | — | — |
| Minimum chamfer dimensionrmin | — | 0.157 in | — | — | — |
| Minimum chamfer dimensionr1 min | — | 4 mm | — | — | — |
| Minimum chamfer dimensionr1 min | — | 0.157 in | — | — | — |
| Raceway diameter outer ringE | — | 306 mm | — | — | — |
| Raceway diameter outer ringE | — | 12.047 in | — | — | — |
| Raceway diameter inner ringF | — | 230 mm | — | — | — |
| Raceway diameter inner ringF | — | 9.055 in | — | — | — |
| Width of loose ribB3 | — | 8.5 mm | — | — | — |
| Width of loose ribB3 | — | 0.335 in | — | — | — |
| Engineering — Abutment dimensions | |||||
| Diameter of spacer sleeved a | min. 207 mm | — | — | — | — |
| Diameter of shaft abutmentd b | min. 248 mm | — | — | — | — |
| Diameter of housing abutmentD a | max. 321.9 mm | — | — | — | — |
| Radius of filletr a | max. 3 mm | — | — | — | — |
| Engineering — Calculation data | |||||
| SKF performance class | SKF Explorer | — | — | — | — |
| Minimum load factork r | 0.23 | — | — | — | — |
| Limiting valuee | 0.2 | — | — | — | — |
| Calculation factorY | 0.6 | — | — | — | — |
| Engineering — Dimensions | |||||
| Shoulder diameter of inner ringd 1 | ≈ 244 mm | — | — | — | — |
| Shoulder diameter of outer ringD 1 | ≈ 295 mm | — | — | — | — |
| Raceway diameter of inner ringF | 230 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 | — | — | — | 855000 N | — |
| Basic static radial load ratingC0r | — | — | — | 955000 N | — |
| Logistics | |||||
| Product net weight | 23.4 kg | — | — | — | — |
| eClass code | 23-05-09-01 | — | — | — | — |
| UNSPSC code | 31171505 | — | — | — | — |
| Lubrication-qualified speed — standard cage | |||||
| Thermal speed rating — oil bath | — | — | — | 2000 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | — | — | 3400 r/min | — |
| Limiting speed — grease | — | — | — | 1800 r/min | — |
| Limiting speed — oil bath | — | — | — | 2200 r/min | — |
| Main Dimensions & Performance Data | |||||
| Basic dynamic load rating, radialCr | — | 680,000 N | — | — | — |
| Basic dynamic load rating, radialCr | — | 152,877.698 lbf | — | — | — |
| Basic static load rating, radialC0r | — | 930,000 N | — | — | — |
| Basic static load rating, radialC0r | — | 209,082.734 lbf | — | — | — |
| Fatigue load limit, radialCur | — | 112,000 N | — | — | — |
| Fatigue load limit, radialCur | — | 25,179.856 lbf | — | — | — |
| Manufacturer Identity | |||||
| Schaeffler Product Code | — | 373342 | — | — | — |
| Material Number | — | — | 000000000190044476 | — | — |
| Official Class Key | — | — | — | — | 040-010-000 |
| Base Type | — | NUP238 | — | — | — |
| World Assembly Part Number | — | — | NUP238EMA | — | — |
| Old Designation | — | ["NUP238E.M1"] | — | — | — |
| Inner Ring Part Number | — | — | 190ARTE02 | — | — |
| Gpsd Group | — | F01 | — | — | — |
| Outer Ring Part Number | — | — | 190ERUE02 | — | — |
| Product Line Id | — | 75 | — | — | — |
| Drawing Number | — | — | M103903 | — | — |
| X Life Marking | — | n.r. | — | — | — |
| Upc | — | — | 0013992252371 | — | — |
| Official Source System | — | — | CORE BP - DS DF | — | — |
| Official Last Run | — | — | 2026-08-23T20:02:48.583 | — | — |
| SAP material number | — | 0167413820000 | — | — | — |
| Base product | — | 2305090122 | — | — | — |
| Bearing X designation | — | NUP238-E-M1 | — | — | — |
| Mounting Manager ID | — | NUP238-E-M1 | — | — | — |
| Grease application ID | — | NUP238-E-M1 | — | — | — |
| Mounting dimensions | |||||
| Maximum rib diameter inner ringd1 | — | 244 mm | — | — | — |
| Maximum rib diameter inner ringd1 | — | 9.606 in | — | — | — |
| Minimum rib diameter outer ringD1 min | — | 295 mm | — | — | — |
| Minimum rib diameter outer ringD1 min | — | 11.614 in | — | — | — |
| Minimum diameter shaft shoulderda min | — | 207 mm | — | — | — |
| Minimum diameter shaft shoulderda min | — | 8.15 in | — | — | — |
| Minimum shaft shoulderdc min | — | 247 mm | — | — | — |
| Minimum shaft shoulderdc min | — | 9.724 in | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 323 mm | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 12.717 in | — | — | — |
| Maximum recess radiusra max | — | 3 mm | — | — | — |
| Maximum recess radiusra max | — | 0.118 in | — | — | — |
| Mounting dimensions — shown arrangement | |||||
| Minimum shaft shoulder diameterdb min. | — | — | — | 206 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | — | 324 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | — | 3 mm | — |
| Maximum secondary adjacent fillet radiusrb max. | — | — | — | 3 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 | Yes | — | — | — | — |
| Product Identity | |||||
| Construction | — | Cylindrical roller bearing NUP..-E-M1, with cage, single row, locating bearing, 2 ribs on outer ring, 1 rib on inner ring, rib washer internal, type NUP | Single Row Cylindrical Roller Bearing | Imperial Series | 7.4803 in Bore | 13.3858 in OD | 2.1654 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | C0 Clearance | — | — |
| Type Description | — | — | Cylindrical 1-Row | — | — |
| Short Description | — | Cylindrical roller bearing | — | — | — |
| Number Of Rows | 1 | — | 1 | — | — |
| Tapered Bore | — | — | N | — | — |
| Properties | |||||
| Bearing part | Complete bearing | — | — | — | — |
| Axial displacement capability | None | — | — | — | — |
| 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 | — | — | — | — |
| Candidate for remanufacturing | Yes | — | — | — | — |
| Indicative carbon footprint for new product | 86.6 kg CO 2 e | — | — | — | — |
| Indicative carbon footprint for remanufactured product | 28.8 kg CO 2 e | — | — | — | — |
| Technical Data | |||||
| d | — | — | — | — | 340 mm |
| B | — | — | — | — | 55 mm |
| R(Min.) | — | — | — | — | 4 mm |
| R1(Min.) | — | — | — | — | 4 mm |
| Bore Diameter (D) | — | 190 mm | — | — | — |
| Overall Width | — | — | 0.000 mm | — | — |
| Fw | — | — | — | — | 230 mm |
| Outside Diamater (D) | — | 340 mm | — | — | — |
| Radial Rating | — | — | 777,000 N | — | — |
| Ew | — | — | — | — | - mm |
| Total Width (B) | — | 55 mm | — | — | — |
| Axial Rating | — | — | 0 N | — | — |
| Basic Load Ratings : Cr | — | — | — | — | 869 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 680,000 N | — | — | — |
| Dynamic Rating C1 | — | — | 777,000 N | — | — |
| Basic Load Ratings : C0R | — | — | — | — | 954 kN |
| Basic Static Load Rating, Radial (C0R) | — | 930,000 N | — | — | — |
| Dynamic Rating C90 | — | — | 0 N | — | — |
| Fatigue Load Limit : Cu | — | — | — | — | 114 kN |
| Raceway Diameter Inner Ring (F) | — | 230 mm | — | — | — |
| Dynamic Axial Rating Ca90 | — | — | 0 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | — | 1700 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — | — |
| Dynamic Axial Rating Ca1 | — | — | 0 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | — | 2000 min-1 |
| Minimum Diameter Shaft Shoulder (Da) | — | 207 mm | — | — | — |
| Static Radial Rating C0 | — | — | 960,000 N | — | — |
| Sd1 | — | — | — | — | - mm |
| Width Of Loose Rib (B3) | — | 8.5 mm | — | — | — |
| Extended Dynamic Rating Ce | — | — | 0 N | — | — |
| B1 | — | — | — | — | - mm |
| Operating Temperature Max. (Tmax) | — | 150 °C | — | — | — |
| Static Axial Rating C0A | — | — | 0 N | — | — |
| B2 | — | — | — | — | - mm |
| Limiting Speed (Limiting Spe) | — | 3,050 1/min | — | — | — |
| Da(Min.) | — | — | — | — | 206 mm |
| Minimum Shaft Shoulder (Dc Min) | — | 247 mm | — | — | — |
| Db(Min.) | — | — | — | — | - mm |
| Reference Speed (Nϑr) | — | 1,720 1/min | — | — | — |
| Db(Max.) | — | — | — | — | - mm |
| Maximum Recess Radius (Ra Max) | — | 3 mm | — | — | — |
| Dc(Min.) | — | — | — | — | - mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 323 mm | — | — | — |
| Dd(Min.) | — | — | — | — | - mm |
| Maximum Rib Diameter Inner Ring (D1) | — | 244 mm | — | — | — |
| Da(Max.) | — | — | — | — | 324 mm |
| Minimum Chamfer Dimension (R1 Min) | — | 4 mm | — | — | — |
| Minimum Rib Diameter Outer Ring (D1 Min) | — | 295 mm | — | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm | — | — | — |
| Ra(Max.) | — | — | — | — | 3 mm |
| Raceway Diameter Outer Ring (E) | — | 306 mm | — | — | — |
| Rb(Max.) | — | — | — | — | 3 mm |
| Fatigue Load Limit, Radial (Cur) | — | 112,000 N | — | — | — |
| Mass(Refer.) | — | — | — | — | 24.5 kg |
| Temperature range | |||||
| Operating temperature min.Tmin | — | -30 °C | — | — | — |
| Operating temperature min.Tmin | — | -22 °F | — | — | — |
| Operating temperature max.Tmax | — | 150 °C | — | — | — |
| Operating temperature max.Tmax | — | 302 °F | — | — | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.