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
“NN3018” 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 3018 TN3/SP90 × 140 × 37 mm | FAGNN3018-D-K-TVP-SP-XL90 × 140 × 37 mm | KOYONN301890 × 140 × 37 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | KOYO |
| Designation | NN 3018 TN3/SP | NN3018-D-K-TVP-SP-XL | NN3018 |
| Product family | Super-precision cylindrical roller bearings | — | Single-row / NN / Cylindrical bore |
| Detailed type | Super-precision double row cylindrical roller bearing | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | — | NN3018 | — |
| Bore diameterd | 90 mm | 90 mm | 90 mm |
| Outside diameterD | 140 mm | 140 mm | 140 mm |
| WidthB | 37 mm | 37 mm | 37 mm |
| Basic dynamic load ratingC | 138 kN | 162 kN | 179 kN |
| Basic static load ratingC0 | 216 kN | 216 kN | 228 kN |
| Fatigue load limitPu | 26 kN | 33.5 kN | 29.3 kN |
| Limiting speednG | — | — | 4200 r/min |
| Mass≈m | 1.99 kg | 1.903 kg | 2.07 kg |
| Precision class | — | SP — Tolerance class SP | — |
| Internal clearance | C1 | C1 (Group 1) — Internal clearance smaller than C2 | — |
| Sealing | Without | — | — |
| Cage | Non-metallic | TVP — Plastic cage | — |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 120 °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 | — | 1.5 mm | — |
| Minimum chamfer dimensionr1 min | — | 0.059 in | — |
| Raceway diameter outer ringE | — | 127 mm | — |
| Raceway diameter outer ringE | — | 5 in | — |
| Axial displacements | — | 2.5 mm | — |
| Axial displacements | — | 0.098 in | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | min. 98 mm | — | — |
| Abutment diameter housingD a | max. 132 mm | — | — |
| Fillet radiusr a | max. 1.5 mm | — | — |
| Oil nozzle position (not for variants with TNHA cage)d n | 125.7 mm | — | — |
| Engineering — Calculation data | |||
| Attainable speed for grease lubrication | 8000.0 r/min | — | — |
| Attainable speed for oil-air lubrication | 9200.0 r/min | — | — |
| Recommended grease quantityG rec | 6.1 cm³ | — | — |
| Static radial stiffness (guideline value) | 2010 N/µm | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter inner ring (NN design)d 1 | 109.4 mm | — | — |
| Raceway diameter outer ring (NN design)E | 127 mm | — | — |
| Chamfer dimension outer ringr 1,2 | min. 1.5 mm | — | — |
| Permissible axial displacement from the normal position of one bearing ring relative to the other (all)s | max. 2 mm | — | — |
| Engineering — Engineering specifications | |||
| Bore type | Cylindrical | — | — |
| Logistics | |||
| Product net weight | 1.99 kg | — | — |
| eClass code | 23-05-09-01 | — | — |
| UNSPSC code | 31171505 | — | — |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | — | 162,000 N | — |
| Basic dynamic load rating, radialCr | — | 36,420.863 lbf | — |
| Basic static load rating, radialC0r | — | 216,000 N | — |
| Basic static load rating, radialC0r | — | 48,561.151 lbf | — |
| Fatigue load limit, radialCur | — | 33,500 N | — |
| Fatigue load limit, radialCur | — | 7,531.475 lbf | — |
| Limiting speed for grease lubricationnG Grease | — | 7,600 1/min | — |
| Limiting speed for oil lubricationnG Oil | — | 8,900 1/min | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 374771 | — |
| Official Class Key | — | — | 040-020-010 |
| Base Type | — | NN3018 | — |
| Gpsd Group | — | F07 | — |
| Product Line Id | — | 39 | — |
| X Life Marking | — | XL | — |
| SAP material number | — | 0866500840000 | — |
| Base product | — | 230509014D | — |
| Bearing X designation | — | NN3018-D-K-TVP-SP-XL | — |
| Mounting Manager ID | — | NN3018-D-K-TVP-SP-XL | — |
| Mounting dimensions | |||
| Diameter shaft shoulderda | — | 105 mm | — |
| Diameter shaft shoulderda | — | 4.134 in | — |
| Diameter shaft shoulder tolerance | — | h12 | — |
| Diameter of housing shoulderDa | — | 129.8 mm | — |
| Diameter of housing shoulderDa | — | 5.11 in | — |
| Shoulder diameter outer ring clearance | — | H12 | — |
| Injection pitch diameter minEtk 1 nom | — | 124.9 mm | — |
| Injection pitch diameter minEtk 1 nom | — | 4.917 in | — |
| Maximum recess radiusra1 max | — | 1.5 mm | — |
| Maximum recess radiusra1 max | — | 0.059 in | — |
| Product characteristics | |||
| Tolerance classSP | — | Tolerance class SP | — |
| Bore typeK | — | Tapered, taper 1:12 | — |
| Change markD | — | Internal Variant D | — |
| 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..-D-K-TVP-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 | Without | — | — |
| Indicative carbon footprint for new product | 7.4 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 140 mm |
| B | — | — | 37 mm |
| R(Min.) | — | — | 1.5 mm |
| Bore Diameter (D) | — | 90 mm | — |
| Fw | — | — | - mm |
| Outside Diamater (D) | — | 140 mm | — |
| Ew | — | — | 127 mm |
| Total Width (B) | — | 37 mm | — |
| Basic Load Ratings : Cr | — | — | 179 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 162,000 N | — |
| Basic Load Ratings : C0R | — | — | 228 kN |
| Basic Static Load Rating, Radial (C0R) | — | 216,000 N | — |
| Fatigue Load Limit : Cu | — | — | 29.3 kN |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Limiting Speeds(Grease Lub.) | — | — | 4200 min-1 |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 7,600 1/min | — |
| Limiting Speeds(Oil Lub.) | — | — | 5100 min-1 |
| Minimum Diameter Shaft Shoulder (Da) | — | 105 mm | — |
| Da(Min.) | — | — | 129 mm |
| Limiting Speed (Ng Oil) | — | 8,900 1/min | — |
| Da(Max.) | — | — | 132 mm |
| Operating Temperature Max. (Tmax) | — | 120 °C | — |
| Db(Min.) | — | — | - mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 129.8 mm | — |
| Minimum Chamfer Dimension (R1 Min) | — | 1.5 mm | — |
| Ra(Max.) | — | — | 1.5 mm |
| Axial Displacement (S) | — | 2.5 mm | — |
| Mass(Refer.) | — | — | 2.07 kg |
| Injection Pitch Diameter Min (Etk 1 N) | — | 124.9 mm | — |
| Maximum Recess Radius (Ra1 Max) | — | 1.5 mm | — |
| Raceway Diameter Outer Ring (E) | — | 127 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 33,500 N | — |
| 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.