Cross-brand designation analysis
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“NNU4930” 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 | SKFNNU 4930 B/SPW33150 × 210 × 60 mm | FAGNNU4930-S-K-M-SP150 × 210 × 60 mm | KOYONNU4930150 × 210 × 60 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | KOYO |
| Designation | NNU 4930 B/SPW33 | NNU4930-S-K-M-SP | NNU4930 |
| Product family | Super-precision cylindrical roller bearings | — | Single-row / NNU / Cylindrical bore |
| Detailed type | Super-precision double row cylindrical roller bearing with lubrication feature | Cylindrical roller bearings | Cylindrical roller bearings |
| Series | — | NNU4930 | — |
| Bore diameterd | 150 mm | 150 mm | 150 mm |
| Outside diameterD | 210 mm | 210 mm | 210 mm |
| WidthB | 60 mm | 60 mm | 60 mm |
| Basic dynamic load ratingC | 330 kN | 330 kN | 430 kN |
| Basic static load ratingC0 | 655 kN | 650 kN | 692 kN |
| Fatigue load limitPu | 71 kN | 82 kN | 80.7 kN |
| Limiting speednG | — | — | 2600 r/min |
| Mass≈m | 6.23 kg | 6.208 kg | 6.5 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 - NNU - Cylindrical bore |
| Official Classification 1 | — | — | Cylindrical roller bearings / Single-row / NNU / Cylindrical bore |
| Dimensions | |||
| Minimum chamfer dimensionr1 min | — | 2 mm | — |
| Minimum chamfer dimensionr1 min | — | 0.079 in | — |
| Raceway diameter inner ringF | — | 168.5 mm | — |
| Raceway diameter inner ringF | — | 6.634 in | — |
| Width of lubricating groovens | — | 6.5 mm | — |
| Width of lubricating groovens | — | 0.256 in | — |
| Diameter lubrication holeds | — | 3.2 mm | — |
| Diameter lubrication holeds | — | 0.126 in | — |
| Axial displacements | — | 2.7 mm | — |
| Axial displacements | — | 0.106 in | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | min. 160 mm | — | — |
| Abutment diameter shaft (NNU design)d a | max. 166 mm | — | — |
| Abutment diameter shaft (NNU design; not for tapered bore)d b | min. 172 mm | — | — |
| Abutment diameter housingD a | max. 200 mm | — | — |
| Fillet radiusr a | max. 2 mm | — | — |
| Oil nozzle position (not for variants with TNHA cage)d n | 169.9 mm | — | — |
| Engineering — Calculation data | |||
| Attainable speed for grease lubrication | 3800.0 r/min | — | — |
| Attainable speed for oil-air lubrication | 4300.0 r/min | — | — |
| Reference grease quantityG ref | 57 cm³ | — | — |
| Static radial stiffness (guideline value) | 4160 N/µm | — | — |
| Engineering — Dimensions | |||
| Shoulder diameter outer ring (NNU design)D 1 | 190.9 mm | — | — |
| Raceway diameter inner ring (NNU design)F | 168.5 mm | — | — |
| Width annular lubrication groove at outer ringb | 5.5 mm | — | — |
| Diameter lubrication hole (outer ring)K | 3 mm | — | — |
| Chamfer dimension outer ringr 1,2 | min. 2 mm | — | — |
| Chamfer dimension inner ring (bearing with tapered bore)r 3,4 | min. 2 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 | 6.23 kg | — | — |
| eClass code | 23-05-09-01 | — | — |
| UNSPSC code | 31171505 | — | — |
| Main Dimensions & Performance Data | |||
| Basic dynamic load rating, radialCr | — | 330,000 N | — |
| Basic dynamic load rating, radialCr | — | 74,190.647 lbf | — |
| Basic static load rating, radialC0r | — | 650,000 N | — |
| Basic static load rating, radialC0r | — | 146,133.094 lbf | — |
| Fatigue load limit, radialCur | — | 82,000 N | — |
| Fatigue load limit, radialCur | — | 18,435.252 lbf | — |
| Limiting speed for grease lubricationnG Grease | — | 3,550 1/min | — |
| Limiting speed for oil lubricationnG Oil | — | 4,200 1/min | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 374510 | — |
| Official Class Key | — | — | 040-020-020 |
| Base Type | — | NNU4930 | — |
| Old Designation | — | ["NNU4930SK.M.SP"] | — |
| Gpsd Group | — | F07 | — |
| Product Line Id | — | 39 | — |
| SAP material number | — | 0192330940000 | — |
| Base product | — | 230509014C | — |
| Bearing X designation | — | NNU4930-S-K-M-SP | — |
| Mounting Manager ID | — | NNU4930-S-K-M-SP | — |
| Mounting dimensions | |||
| Diameter shaft shoulderda | — | 167.2 mm | — |
| Diameter shaft shoulderda | — | 6.583 in | — |
| Diameter shaft shoulder tolerance | — | h12 | — |
| Diameter of housing shoulderDa | — | 196.5 mm | — |
| Diameter of housing shoulderDa | — | 7.736 in | — |
| Diameter of housing shoulder tolerance | — | H12 | — |
| Maximum recess radiusra1 max | — | 2 mm | — |
| Maximum recess radiusra1 max | — | 0.079 in | — |
| Product characteristics | |||
| Tolerance classSP | — | Tolerance class SP | — |
| Bore typeK | — | Tapered, taper 1:12 | — |
| Locating Feature , bearing outer ringS | — | Lubrication holes and lubrication groove in outer ring | — |
| 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 NNU49..-S-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 | NNU | — | — |
| Number of flanges, outer ring | 3 | — | — |
| Number of flanges, inner ring | 0 | — | — |
| 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 | 23.0 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 210 mm |
| B | — | — | 60 mm |
| R(Min.) | — | — | 2 mm |
| Bore Diameter (D) | — | 150 mm | — |
| Fw | — | — | 168.5 mm |
| Outside Diamater (D) | — | 210 mm | — |
| Ew | — | — | - mm |
| Total Width (B) | — | 60 mm | — |
| Basic Load Ratings : Cr | — | — | 430 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 330,000 N | — |
| Basic Load Ratings : C0R | — | — | 692 kN |
| Basic Static Load Rating, Radial (C0R) | — | 650,000 N | — |
| Fatigue Load Limit : Cu | — | — | 80.7 kN |
| Diameter Lubrication Hole (Ds) | — | 3.2 mm | — |
| Limiting Speeds(Grease Lub.) | — | — | 2600 min-1 |
| Raceway Diameter Inner Ring (F) | — | 168.5 mm | — |
| Limiting Speeds(Oil Lub.) | — | — | 3100 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Da(Min.) | — | — | - mm |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 3,550 1/min | — |
| Da(Max.) | — | — | 201 mm |
| Minimum Diameter Shaft Shoulder (Da) | — | 167.2 mm | — |
| Db(Min.) | — | — | 171 mm |
| Limiting Speed (Ng Oil) | — | 4,200 1/min | — |
| Operating Temperature Max. (Tmax) | — | 150 °C | — |
| Ra(Max.) | — | — | 2 mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 196.5 mm | — |
| Mass(Refer.) | — | — | 6.50 kg |
| Minimum Chamfer Dimension (R1 Min) | — | 2 mm | — |
| Width Of Lubricating Groove (Ns) | — | 6.5 mm | — |
| Axial Displacement (S) | — | 2.7 mm | — |
| Maximum Recess Radius (Ra1 Max) | — | 2 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 82,000 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.