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| Parameter | SKFNK 30/20 TNSingle row needle roller bearing with machined rings, with flanges, without inner ring | INANK30/20-F-XL30 × 40 × 20 mm | KOYONK30/20Needle roller bearings |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | INA | KOYO |
| Designation | NK 30/20 TN | NK30/20-F-XL | NK30/20 |
| Product family | Needle roller bearings | — | Heavy-duty needle roller bearings / Metric series, caged, without inner ring |
| Detailed type | Single row needle roller bearing with machined rings, with flanges, without inner ring | Needle roller bearings | Needle roller bearings |
| Series | — | NK30/20 | — |
| Bore diameterd | — | 30 mm | — |
| Outside diameterD | 40 mm | 40 mm | 40 mm |
| WidthB | 20 mm | 20 mm | — |
| Basic dynamic load ratingC | 25.1 kN | 25.5 kN | 24.2 kN |
| Basic static load ratingC0 | 44 kN | 36 kN | 38.3 kN |
| Fatigue load limitPu | 5.5 kN | 6.4 kN | 6.1 kN |
| Reference speednref | 13000 r/min | 8900 r/min | — |
| Limiting speednG | 15000 r/min | 14800 r/min | 9500 r/min |
| Mass≈m | 0.06 kg | 0.06375 kg | 0.071 kg |
| Sealing | Without | — | — |
| Cage | Non-metallic | — | — |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 120 °C | — |
| Classification | |||
| Official Category Path | — | — | Needle roller bearings - Heavy-duty needle roller bearings - Metric series, caged, without inner ring |
| Official Classification 1 | — | — | Needle roller bearings / Heavy-duty needle roller bearings / Metric series, caged, without inner ring |
| Dimensions | |||
| Bore diameter of needle roller complement | 30.0 mm | — | — |
| Engineering — Abutment dimensions | |||
| Diameter of housing abutmentD a | max. 38 mm | — | — |
| Fillet radiusr a | max. 0.3 mm | — | — |
| Engineering — Associated seals | |||
| Radial shaft seal with a low cross-sectional height, single lip | G 30x40x4 | — | — |
| Radial shaft seal with a low cross-sectional height, double lip | SD 30x40x4 | — | — |
| Engineering — Dimensions | |||
| Diameter under rollersF w | 30 mm | — | — |
| Chamfer dimension outer ringr 1,2 | min. 0.3 mm | — | — |
| Logistics | |||
| Product net weight | 0.06 kg | — | — |
| eClass code | 23-05-09-03 | — | — |
| UNSPSC code | 31171512 | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 383109 | — |
| Official Class Key | — | — | 090-030-010 |
| Base Type | — | NK30/20 | — |
| Gpsd Group | — | I01 | — |
| Product Line Id | — | 09 | — |
| X Life Marking | — | XL | — |
| Product identity | |||
| Official product category | Needle roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/needle-roller-bearings/needle-roller-bearings-with-machined-rings | — | — |
| Structure group ID | BN1_002 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Needle roller bearing NK..-F-XL, single row, no inner ring, outer ring with 2 bords | — |
| Short Description | — | Needle roller bearing | — |
| Properties | |||
| Bearing part | Bearing without inner ring | — | — |
| Number of rows | 1 | — | — |
| Outer ring type | Machined (solid) | — | — |
| Aligning feature | Without | — | — |
| Number of flanges, outer ring | 2 | — | — |
| Tolerance class | Normal | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | With | — | — |
| Indicative carbon footprint for new product | 0.22 kg CO 2 e | — | — |
| Technical Data | |||
| Fw | — | — | 30 mm |
| D | — | — | 40 mm |
| C | — | — | 20 mm |
| R(Min.) | — | — | 0.3 mm |
| Basic Load Ratings : Cr | — | — | 24.2 kN |
| Under Roller Diameter (Fw) | — | 30 mm | — |
| Basic Load Ratings : C0R | — | — | 38.3 kN |
| Outside Diamater (D) | — | 40 mm | — |
| Fatigue Load Limit : Cu | — | — | 6.10 kN |
| Width, Outer Ring (C) | — | 20 mm | — |
| Limiting Speeds(Grease Lub.) | — | — | 9500 min-1 |
| Basic Dynamic Load Rating, Radial (Cr) | — | 25,500 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 15000 min-1 |
| Basic Static Load Rating, Radial (C0R) | — | 36,000 N | — |
| (Refer.)Mass | — | — | 0.071? kg |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Mass(Refer.) | — | — | 0.071? kg |
| Operating Temperature Max. (Tmax) | — | 120 °C | — |
| Limiting Speed (Limiting Spe) | — | 14,800 1/min | — |
| Reference Speed (Nϑr) | — | 8,900 1/min | — |
| Minimum Chamfer Dimension (Rmin) | — | 0.3 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 6,400 N | — |
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.