Cross-brand designation analysis
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You entered NN3038-AS-K-M-SP. This table explores the base group NN3038; it does not preserve or approve every requested suffix. Search your complete marking first →
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“NN3038” 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 | SKFNN 3038 K/SPW33190 × 290 × 75 mm | FAGNN3038-AS-K-M-SP190 × 290 × 75 mm | KOYONN3038190 × 290 × 75 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | KOYO |
| Designation | NN 3038 K/SPW33 | NN3038-AS-K-M-SP | NN3038 |
| Product family | Super-precision cylindrical roller bearings | — | Single-row / NN / Cylindrical bore |
| Detailed type | Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | — | NN3038 | — |
| Bore diameterd | 190 mm | 190 mm | 190 mm |
| Outside diameterD | 290 mm | 290 mm | 290 mm |
| WidthB | 75 mm | 75 mm | 75 mm |
| Basic dynamic load ratingC | 594 kN | 580 kN | 752 kN |
| Basic static load ratingC0 | 1080 kN | 1040 kN | 1020 kN |
| Fatigue load limitPu | 108 kN | 122 kN | 128 kN |
| Limiting speednG | — | — | 1900 r/min |
| Mass≈m | 17.1 kg | 16.969 kg | 17.6 kg |
| Precision class | — | SP — Tolerance class SP | — |
| Internal clearance | C1 | C1 (Group 1) — Internal clearance smaller than C2 | — |
| Sealing | Without | — | — |
| Cage | Machined metal | M — Brass Cage | — |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 150 °C | — |
| Capabilities & suitability | |||
| Radial load capacity | — | Yes | — |
| Suitable for grease lubrication | — | Yes | — |
| Suitable for oil lubrication | — | Yes | — |
| Unsealed design | — | Yes | — |
| Classification | |||
| Official Category Path | — | — | Cylindrical roller bearings - Single-row - NN - Cylindrical bore |
| Official Classification 1 | — | — | Cylindrical roller bearings / Single-row / NN / Cylindrical bore |
| Dimensions | |||
| Minimum chamfer dimensionr1 min | — | 2.1 mm | — |
| Minimum chamfer dimensionr1 min | — | 0.083 in | — |
| Raceway diameter outer ringE | — | 265 mm | — |
| Raceway diameter outer ringE | — | 10.433 in | — |
| Width of lubricating groovens | — | 12.2 mm | — |
| Width of lubricating groovens | — | 0.48 in | — |
| Diameter lubrication holeds | — | 6.3 mm | — |
| Diameter lubrication holeds | — | 0.248 in | — |
| Axial displacements | — | 4.8 mm | — |
| Axial displacements | — | 0.189 in | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | min. 201 mm | — | — |
| Abutment diameter housingD a | max. 279 mm | — | — |
| Fillet radiusr a | max. 2 mm | — | — |
| Oil nozzle position (not for variants with TNHA cage)d n | 258.9 mm | — | — |
| Engineering — Calculation data | |||
| Attainable speed for grease lubrication | 2800.0 r/min | — | — |
| Attainable speed for oil-air lubrication | 3200.0 r/min | — | — |
| Reference grease quantityG ref | 144 cm³ | — | — |
| Static radial stiffness (guideline value) | 4280 N/µm | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter inner ring (NN design)d 1 | 228.2 mm | — | — |
| Raceway diameter outer ring (NN design)E | 265 mm | — | — |
| Width annular lubrication groove at outer ringb | 11.35 mm | — | — |
| Diameter lubrication hole (outer ring)K | 6 mm | — | — |
| Chamfer dimension outer ringr 1,2 | min. 2.1 mm | — | — |
| Chamfer dimension inner ring (bearing with tapered bore)r 3,4 | min. 1.1 mm | — | — |
| Permissible axial displacement from the normal position of one bearing ring relative to the other (all)s | max. 3 mm | — | — |
| Engineering — Engineering specifications | |||
| Bore type | Tapered 1:12 | — | — |
| Logistics | |||
| Product net weight | 17.1 kg | — | — |
| eClass code | 23-05-09-01 | — | — |
| UNSPSC code | 31171505 | — | — |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | — | 580,000 N | — |
| Basic dynamic load rating, radialCr | — | 130,395.683 lbf | — |
| Basic static load rating, radialC0r | — | 1,040,000 N | — |
| Basic static load rating, radialC0r | — | 233,812.95 lbf | — |
| Fatigue load limit, radialCur | — | 122,000 N | — |
| Fatigue load limit, radialCur | — | 27,428.058 lbf | — |
| Limiting speed for grease lubricationnG Grease | — | 2,750 1/min | — |
| Limiting speed for oil lubricationnG Oil | — | 3,200 1/min | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 374733 | — |
| Official Class Key | — | — | 040-020-010 |
| Base Type | — | NN3038 | — |
| Old Designation | — | ["NN3038ASK.M.SP"] | — |
| Gpsd Group | — | F07 | — |
| Product Line Id | — | 39 | — |
| X Life Marking | — | n.r. | — |
| SAP material number | — | 0192315120000 | — |
| Base product | — | 230509014D | — |
| Bearing X designation | — | NN3038-AS-K-M-SP | — |
| Mounting Manager ID | — | NN3038-AS-K-M-SP | — |
| Mounting dimensions | |||
| Diameter shaft shoulderda | — | 219 mm | — |
| Diameter shaft shoulderda | — | 8.622 in | — |
| Diameter shaft shoulder tolerance | — | h12 | — |
| Diameter of housing shoulderDa | — | 271 mm | — |
| Diameter of housing shoulderDa | — | 10.669 in | — |
| Shoulder diameter outer ring clearance | — | H12 | — |
| Maximum recess radiusra1 max | — | 2.1 mm | — |
| Maximum recess radiusra1 max | — | 0.083 in | — |
| Product characteristics | |||
| Tolerance classSP | — | Tolerance class SP | — |
| Bore typeK | — | Tapered, taper 1:12 | — |
| Change markA | — | Internal Variant A | — |
| Radial internal clearanceC1 (Group 1) | — | Internal clearance smaller than C2 | — |
| Number of rows2 | — | Double-row design | — |
| Product identity | |||
| Official product category | Super-precision cylindrical roller bearings | — | — |
| Official taxonomy path | /products/super-precision-bearings/cylindrical-roller-bearings | — | — |
| Structure group ID | BC2_010 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Super precision cylindrical roller bearings NN30..-AS-K-M-SP, non-locating bearing, double row, with tapered bore, taper 1:12, separable, with cage | — |
| Short Description | — | Cylindrical roller bearing | — |
| Properties | |||
| Bearing part | Complete bearing | — | — |
| Number of rows | 2 | — | — |
| Design | NN | — | — |
| Number of flanges, outer ring | 0 | — | — |
| Number of flanges, inner ring | 3 | — | — |
| Loose flange | None | — | — |
| Radial internal clearance | C1 | — | — |
| Tolerance class | Class SP (SP) | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | Annular groove and lubrication holes | — | — |
| Indicative carbon footprint for new product | 63.3 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 290 mm |
| B | — | — | 75 mm |
| R(Min.) | — | — | 2.1 mm |
| Fw | — | — | - mm |
| Bore Diameter (D) | — | 190 mm | — |
| Ew | — | — | 265 mm |
| Outside Diamater (D) | — | 290 mm | — |
| Basic Load Ratings : Cr | — | — | 752 kN |
| Total Width (B) | — | 75 mm | — |
| Basic Load Ratings : C0R | — | — | 1020 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 580,000 N | — |
| Fatigue Load Limit : Cu | — | — | 128 kN |
| Basic Static Load Rating, Radial (C0R) | — | 1,040,000 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 1900 min-1 |
| Diameter Lubrication Hole (Ds) | — | 6.3 mm | — |
| Limiting Speeds(Oil Lub.) | — | — | 2300 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Da(Min.) | — | — | 267 mm |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 2,750 1/min | — |
| Da(Max.) | — | — | 279 mm |
| Minimum Diameter Shaft Shoulder (Da) | — | 219 mm | — |
| Db(Min.) | — | — | - mm |
| Limiting Speed (Ng Oil) | — | 3,200 1/min | — |
| Operating Temperature Max. (Tmax) | — | 150 °C | — |
| Ra(Max.) | — | — | 2 mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 271 mm | — |
| Mass(Refer.) | — | — | 17.6 kg |
| Minimum Chamfer Dimension (R1 Min) | — | 2.1 mm | — |
| Width Of Lubricating Groove (Ns) | — | 12.2 mm | — |
| Axial Displacement (S) | — | 4.8 mm | — |
| Maximum Recess Radius (Ra1 Max) | — | 2.1 mm | — |
| Raceway Diameter Outer Ring (E) | — | 265 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 122,000 N | — |
| 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.