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| Parameter | SKFNUP 248 MA240 × 440 × 72 mm | TIMKENNUP248EMA240 × 440 × 72 mm | NSKNUP248M240 × 440 × 72 mm | KOYONUP248240 × 440 × 72 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | TIMKEN | NSK | KOYO |
| Designation | NUP 248 MA | NUP248EMA | NUP248M | NUP248 |
| 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 |
| Series | — | EX27726 | — | — |
| Bore diameterd | 240 mm | 240 mm | 240 mm | 240 mm |
| Outside diameterD | 440 mm | 440 mm | 440 mm | 440 mm |
| WidthB | 72 mm | 72 mm | 72 mm | 72 mm |
| Basic dynamic load ratingC | 952 kN | 1250 kN | 1150 kN | 1170 kN |
| Basic static load ratingC0 | 1370 kN | 1570 kN | 1340 kN | 1340 kN |
| Fatigue load limitPu | 129 kN | — | — | 150 kN |
| Reference speednref | 1600 r/min | — | — | — |
| Limiting speednG | 2200 r/min | — | — | 1200 r/min |
| Mass≈m | 53.5 kg | 52 kg | — | 54.7 kg |
| Internal clearance | CN | — | — | — |
| Sealing | Without | Open | — | — |
| Cage | Machined brass | Window Brass cage | Machined brass | — |
| Lubricant | None | — | — | — |
| Boundary dimensions | ||||
| Bearing widthB | — | — | 72 mm | — |
| Minimum bearing chamferr min. | — | — | 4 mm | — |
| Minimum secondary bearing chamferr1 min. | — | — | 4 mm | — |
| Roller inscribed circle diameterFw | — | — | 295 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 | — | 0.1560 | — | — |
| Catalogue reference mass | ||||
| Approximate shared-row mass — not separately stated for each rib arrangement | — | — | 50.4 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 | — |
| Engineering — Abutment dimensions | ||||
| Diameter of spacer sleeved a | min. 257 mm | — | — | — |
| Diameter of shaft abutmentd b | min. 316 mm | — | — | — |
| Diameter of housing abutmentD a | max. 423 mm | — | — | — |
| Radius of filletr a | max. 3 mm | — | — | — |
| Engineering — Calculation data | ||||
| Minimum load factork r | 0.15 | — | — | — |
| Limiting valuee | 0.2 | — | — | — |
| Calculation factorY | 0.6 | — | — | — |
| Engineering — Dimensions | ||||
| Shoulder diameter of inner ringd 1 | ≈ 313 mm | — | — | — |
| Shoulder diameter of outer ringD 1 | ≈ 365 mm | — | — | — |
| Raceway diameter of inner ringF | 295 mm | — | — | — |
| Chamfer dimensionr 1,2 | min. 4 mm | — | — | — |
| Load ratings — standard cage | ||||
| Basic dynamic radial load ratingCr | — | — | 1150000 N | — |
| Basic static radial load ratingC0r | — | — | 1340000 N | — |
| Logistics | ||||
| Product net weight | 53.5 kg | — | — | — |
| eClass code | 23-05-09-01 | — | — | — |
| UNSPSC code | 31171505 | — | — | — |
| Lubrication-qualified speed — standard cage | ||||
| Thermal speed rating — oil bath | — | — | 1600 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | — | Not stated in this catalogue row | — |
| Limiting speed — grease | — | — | 1300 r/min | — |
| Limiting speed — oil bath | — | — | 1600 r/min | — |
| Manufacturer Identity | ||||
| Material Number | — | 000000000190064629 | — | — |
| Official Class Key | — | — | — | 040-010-000 |
| World Assembly Part Number | — | NUP248EMA | — | — |
| Inner Ring Part Number | — | 240ARTE02 | — | — |
| Outer Ring Part Number | — | 240ERUE02 | — | — |
| Drawing Number | — | M960293 | — | — |
| Upc | — | 0053893834047 | — | — |
| Official Source System | — | CORE BP - DS DF | — | — |
| Official Last Run | — | 2026-08-23T20:02:48.583 | — | — |
| Mounting dimensions — shown arrangement | ||||
| Minimum shaft shoulder diameterdb min. | — | — | 256 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | 424 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 | Yes | — | — | — |
| Product Identity | ||||
| Type Description | — | Cylindrical 1-Row | — | — |
| Construction | — | Single Row Cylindrical Roller Bearing | Imperial Series | 9.4488 in Bore | 17.3228 in OD | 2.8346 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | C0 Clearance | — | — |
| 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 | 198.0 kg CO 2 e | — | — | — |
| Indicative carbon footprint for remanufactured product | 65.8 kg CO 2 e | — | — | — |
| Technical Data | ||||
| d | — | — | — | 440 mm |
| B | — | — | — | 72 mm |
| R(Min.) | — | — | — | 4 mm |
| R1(Min.) | — | — | — | 4 mm |
| Overall Width | — | 0.000 mm | — | — |
| Fw | — | — | — | 295 mm |
| Radial Rating | — | 1,250,000 N | — | — |
| Ew | — | — | — | - mm |
| Axial Rating | — | 0 N | — | — |
| Basic Load Ratings : Cr | — | — | — | 1170 kN |
| Dynamic Rating C1 | — | 1,250,000 N | — | — |
| Basic Load Ratings : C0R | — | — | — | 1340 kN |
| Dynamic Rating C90 | — | 0 N | — | — |
| Fatigue Load Limit : Cu | — | — | — | 150 kN |
| Dynamic Axial Rating Ca90 | — | 0 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | 1200 min-1 |
| Dynamic Axial Rating Ca1 | — | 0 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | 1500 min-1 |
| Static Radial Rating C0 | — | 1,570,000 N | — | — |
| Sd1 | — | — | — | - mm |
| Extended Dynamic Rating Ce | — | 0 N | — | — |
| B1 | — | — | — | - mm |
| Static Axial Rating C0A | — | 0 N | — | — |
| B2 | — | — | — | - mm |
| Da(Min.) | — | — | — | 256 mm |
| Db(Min.) | — | — | — | - mm |
| Db(Max.) | — | — | — | - mm |
| Dc(Min.) | — | — | — | - mm |
| Dd(Min.) | — | — | — | - mm |
| Da(Max.) | — | — | — | 424 mm |
| Ra(Max.) | — | — | — | 3 mm |
| Rb(Max.) | — | — | — | 3 mm |
| Mass(Refer.) | — | — | — | 54.7 kg |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.