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
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Dimensions verified
“NN3068” 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 3068 K/SPW33340 × 520 × 133 mm | FAGNN3068-AS-K-M-SP340 × 520 × 133 mm | KOYONN3068340 × 520 × 133 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | KOYO |
| Designation | NN 3068 K/SPW33 | NN3068-AS-K-M-SP | NN3068 |
| 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 | — | NN3068 | — |
| Bore diameterd | 340 mm | 340 mm | 340 mm |
| Outside diameterD | 520 mm | 520 mm | 520 mm |
| WidthB | 133 mm | 133 mm | 133 mm |
| Basic dynamic load ratingC | 1650 kN | 1640 kN | 2090 kN |
| Basic static load ratingC0 | 3250 kN | 3250 kN | 3090 kN |
| Fatigue load limitPu | 290 kN | 340 kN | 345 kN |
| Limiting speednG | — | — | 880 r/min |
| Mass≈m | 99 kg | 97.53 kg | 101 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 | — |
| Largebearing | — | 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 | — | 5 mm | — |
| Minimum chamfer dimensionr1 min | — | 0.197 in | — |
| Raceway diameter outer ringE | — | 473 mm | — |
| Raceway diameter outer ringE | — | 18.622 in | — |
| Width of lubricating groovens | — | 17.7 mm | — |
| Width of lubricating groovens | — | 0.697 in | — |
| Diameter lubrication holeds | — | 9.5 mm | — |
| Diameter lubrication holeds | — | 0.374 in | — |
| Axial displacements | — | 8.8 mm | — |
| Axial displacements | — | 0.346 in | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | min. 358 mm | — | — |
| Abutment diameter housingD a | max. 502 mm | — | — |
| Fillet radiusr a | max. 4 mm | — | — |
| Engineering — Calculation data | |||
| Attainable speed for grease lubrication | 1400.0 r/min | — | — |
| Attainable speed for oil-air lubrication | 1500.0 r/min | — | — |
| Static radial stiffness (guideline value) | 7220 N/µm | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter inner ring (NN design)d 1 | 408 mm | — | — |
| Raceway diameter outer ring (NN design)E | 473 mm | — | — |
| Raceway diameter inner ring (NNU design)F | 393 mm | — | — |
| Width annular lubrication groove at outer ringb | 16.7 mm | — | — |
| Diameter lubrication hole (outer ring)K | 9 mm | — | — |
| Chamfer dimension outer ringr 1,2 | min. 5 mm | — | — |
| Chamfer dimension inner ring (bearing with tapered bore)r 3,4 | min. 8.2 mm | — | — |
| Permissible axial displacement from the normal position of one bearing ring relative to the other (all)s | max. 10.9 mm | — | — |
| Engineering — Engineering specifications | |||
| Bore type | Tapered 1:12 | — | — |
| Logistics | |||
| Product net weight | 99.0 kg | — | — |
| eClass code | 23-05-09-01 | — | — |
| UNSPSC code | 31171505 | — | — |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | — | 1,640,000 N | — |
| Basic dynamic load rating, radialCr | — | 368,705.036 lbf | — |
| Basic static load rating, radialC0r | — | 3,250,000 N | — |
| Basic static load rating, radialC0r | — | 730,665.468 lbf | — |
| Fatigue load limit, radialCur | — | 340,000 N | — |
| Fatigue load limit, radialCur | — | 76,438.849 lbf | — |
| Limiting speed for grease lubricationnG Grease | — | 1,470 1/min | — |
| Limiting speed for oil lubricationnG Oil | — | 1,730 1/min | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 374920 | — |
| Official Class Key | — | — | 040-020-010 |
| Base Type | — | NN3068 | — |
| Gpsd Group | — | F07 | — |
| Product Line Id | — | 39 | — |
| X Life Marking | — | n.r. | — |
| SAP material number | — | 0192317090000 | — |
| Base product | — | 230509014D | — |
| Bearing X designation | — | NN3068-AS-K-M-SP | — |
| Mounting Manager ID | — | NN3068-AS-K-M-SP | — |
| Mounting dimensions | |||
| Diameter shaft shoulderda | — | 393 mm | — |
| Diameter shaft shoulderda | — | 15.472 in | — |
| Diameter shaft shoulder tolerance | — | h12 | — |
| Diameter of housing shoulderDa | — | 483 mm | — |
| Diameter of housing shoulderDa | — | 19.016 in | — |
| Shoulder diameter outer ring clearance | — | H12 | — |
| Maximum recess radiusra1 max | — | 4 mm | — |
| Maximum recess radiusra1 max | — | 0.157 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 | 366.0 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 520 mm |
| B | — | — | 133 mm |
| R(Min.) | — | — | 5 mm |
| Bore Diameter (D) | — | 340 mm | — |
| Fw | — | — | - mm |
| Outside Diamater (D) | — | 520 mm | — |
| Ew | — | — | 473 mm |
| Total Width (B) | — | 133 mm | — |
| Basic Load Ratings : Cr | — | — | 2090 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 1,640,000 N | — |
| Basic Load Ratings : C0R | — | — | 3090 kN |
| Basic Static Load Rating, Radial (C0R) | — | 3,250,000 N | — |
| Fatigue Load Limit : Cu | — | — | 345 kN |
| Diameter Lubrication Hole (Ds) | — | 9.5 mm | — |
| Limiting Speeds(Grease Lub.) | — | — | 880 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Limiting Speeds(Oil Lub.) | — | — | 1100 min-1 |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 1,470 1/min | — |
| Da(Min.) | — | — | 477 mm |
| Minimum Diameter Shaft Shoulder (Da) | — | 393 mm | — |
| Da(Max.) | — | — | 500 mm |
| Limiting Speed (Ng Oil) | — | 1,730 1/min | — |
| Db(Min.) | — | — | - mm |
| Operating Temperature Max. (Tmax) | — | 150 °C | — |
| Maximum Diameter Of Housing Shoulder (Da) | — | 483 mm | — |
| Ra(Max.) | — | — | 4 mm |
| Minimum Chamfer Dimension (R1 Min) | — | 5 mm | — |
| Mass(Refer.) | — | — | 101 kg |
| Width Of Lubricating Groove (Ns) | — | 17.7 mm | — |
| Axial Displacement (S) | — | 8.8 mm | — |
| Maximum Recess Radius (Ra1 Max) | — | 4 mm | — |
| Raceway Diameter Outer Ring (E) | — | 473 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 340,000 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.