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| Parameter | SKFNA 690317 × 30 × 23 mm | INANA6903-XL17 × 30 × 23 mm | IKONA690317 × 30 × 23 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | INA | IKO |
| Designation | NA 6903 | NA6903-XL | NA6903 |
| Product family | Needle roller bearings | — | Machined Type Needle Roller Bearings |
| Detailed type | Single row needle roller bearing with machined rings, with flanges | Needle roller bearings | Needle roller bearings |
| Series | — | NA6903 | NA69 |
| Bore diameterd | 17 mm | 17 mm | 17 mm |
| Outside diameterD | 30 mm | 30 mm | 30 mm |
| WidthB | 23 mm | 23 mm | 23 mm |
| Basic dynamic load ratingC | 18.7 kN | 21.1 kN | 20.8 kN |
| Basic static load ratingC0 | 30.5 kN | 29 kN | 32.5 kN |
| Fatigue load limitPu | 3.75 kN | 5.2 kN | — |
| Reference speednref | 18000 r/min | 9800 r/min | 10800 r/min |
| Limiting speednG | 20000 r/min | 20000 r/min | 18000 r/min |
| Mass≈m | 0.072 kg | 0.07 kg | 0.066996 kg |
| Precision class | — | — | JIS, Class 0 |
| Internal clearance | CN | — | — |
| Sealing | Without | — | — |
| Cage | Sheet metal | — | Steel |
| Bearing material | Bearing steel | — | High Carbon Chrome Steel |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | -20 °C |
| Maximum operating temperatureTmax | — | 120 °C | 120 °C |
| Engineering — Abutment dimensions | |||
| Smallest permissible abutment diameter shaft, bearings with flangesd a | min. 19 mm | — | — |
| Diameter of housing abutmentD a | max. 28 mm | — | — |
| Fillet radiusr a | max. 0.3 mm | — | — |
| Engineering — Dimensions | |||
| Raceway diameter inner ringF | 22 mm | — | — |
| Chamfer dimension outer ringr 1,2 | min. 0.3 mm | — | — |
| Permissible axial displacement from the normal position of one bearing ring relative to the others | max. 1 mm | — | — |
| Logistics | |||
| Product net weight | 0.072 kg | — | — |
| eClass code | 23-05-09-03 | — | — |
| UNSPSC code | 31171512 | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 382427 | — |
| Base Type | — | NA6903 | — |
| Old Designation | — | ["NA6903"] | — |
| Gpsd Group | — | I01 | — |
| Product Line Id | — | 09 | — |
| X Life Marking | — | XL | — |
| Cad Part Number | — | — | NA6903 |
| Materials | |||
| Rolling Element Material | — | — | SUJ2 |
| Retainer Material | — | — | Steel |
| Product Identity | |||
| Short Description | — | Needle roller bearing | Machined Type Needle Roller Bearings |
| Long Description | — | — | Machined Type Needle Roller Bearings, High Carbon Steel, Oil Hole, Inner Ring |
| Official Bearing Family | — | — | Needle Roller Bearings |
| Official Bearing Type | — | — | Machined Type Needle Roller Bearings |
| Construction | — | Needle roller bearing NA..-XL, single row, with inner ring, outer ring with 2 bords | — |
| 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_003 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Properties | |||
| Bearing part | Complete bearing | — | — |
| Number of rows | 1 | — | — |
| Outer ring type | Machined (solid) | — | — |
| Aligning feature | Without | — | — |
| Number of flanges, outer ring | 2 | — | — |
| Radial internal clearance | CN | — | — |
| Tolerance class | Normal | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | With | — | — |
| Indicative carbon footprint for new product | 0.27 kg CO 2 e | — | — |
| Technical Data | |||
| Rolling Element | — | — | Roller |
| Relubricatable | — | — | Yes |
| Bore Diameter (D) | — | 17 mm | — |
| Outside Diamater (D) | — | 30 mm | — |
| Total Width (B) | — | 23 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | — | 21,100 N | — |
| Basic Static Load Rating, Radial (C0R) | — | 29,000 N | — |
| Raceway Diameter Inner Ring (F) | — | 22 mm | — |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Operating Temperature Max. (Tmax) | — | 120 °C | — |
| Limiting Speed (Limiting Spe) | — | 20,000 1/min | — |
| Reference Speed (Nϑr) | — | 9,800 1/min | — |
| Axial Displacement (S) | — | 1 mm | — |
| Minimum Chamfer Dimension (Rmin) | — | 0.3 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 5,200 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.