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| Parameter | SKFRNAO 60X78X40Double row needle roller bearing with machined rings, without flanges, without an inner ring | INARNAO60X78X20-XL60 × 78 × 20 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | INA |
| Designation | RNAO 60X78X40 | RNAO60X78X20-XL |
| Product family | Needle roller bearings | — |
| Detailed type | Double row needle roller bearing with machined rings, without flanges, without an inner ring | Needle roller bearings |
| Series | — | RNAO60X78X20 |
| Bore diameterd | — | 60 mm |
| Outside diameterD | 78 mm | 78 mm |
| WidthB | 40 mm | 20 mm |
| Basic dynamic load ratingC | 72.1 kN | 49.5 kN |
| Basic static load ratingC0 | 173 kN | 85 kN |
| Fatigue load limitPu | 21.2 kN | 13.9 kN |
| Reference speednref | 6700 r/min | 4650 r/min |
| Limiting speednG | 7500 r/min | 7700 r/min |
| Mass≈m | 0.435 kg | 0.255 kg |
| Sealing | Without | — |
| Cage | Sheet steel | — |
| Bearing material | Bearing steel | — |
| Lubricant | None | — |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 120 °C |
| Dimensions | ||
| Bore diameter of needle roller complement | 60.0 mm | — |
| Engineering — Abutment dimensions | ||
| Smallest permissible abutment diameter shaft, bearings without flangesd a | 67.2 mm | — |
| Diameter of housing abutmentD a | 68.8 mm | — |
| Smallest permissible abutment diameter housing, bearings without flangesD b | 60.8 mm | — |
| Fillet radiusr a | max. 1 mm | — |
| Engineering — Dimensions | ||
| Diameter under rollersF w | 60 mm | — |
| Raceway diameter outer ringE | 68 mm | — |
| Chamfer dimension outer ringr 1,2 | min. 1 mm | — |
| Logistics | ||
| Product net weight | 0.435 kg | — |
| eClass code | 23-05-09-03 | — |
| UNSPSC code | 31171512 | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 394037 |
| Base Type | — | RNAO60X78X20 |
| 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 bearings RNAO, without ribs |
| Short Description | — | Needle roller bearing |
| Properties | ||
| Bearing part | Bearing without inner ring | — |
| Number of rows | 2 | — |
| Outer ring type | Machined (solid) | — |
| Aligning feature | Without | — |
| Number of flanges, outer ring | 0 | — |
| Tolerance class | Normal | — |
| Material, bearing | Bearing steel | — |
| Coating | Without | — |
| Relubrication feature | With | — |
| Indicative carbon footprint for new product | 1.6 kg CO 2 e | — |
| Technical Data | ||
| Under Roller Diameter (Fw) | — | 60 mm |
| Outside Diamater (D) | — | 78 mm |
| Width, Outer Ring (C) | — | 20 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 49,500 N |
| Basic Static Load Rating, Radial (C0R) | — | 85,000 N |
| Shoulder Diameter Axial Guidance Nk/Shaft (Db) | — | 67.2 mm |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Shoulder Diameter Outer Ring (Da) | — | 68.8 mm |
| Operating Temperature Max. (Tmax) | — | 120 °C |
| Limiting Speed (Limiting Spe) | — | 7,700 1/min |
| Reference Speed (Nϑr) | — | 4,650 1/min |
| Maximum Recess Radius (Ra Max) | — | 1 mm |
| Shoulder Diameter Axial Guidance Nk/Housing (Db) | — | 60.8 mm |
| Minimum Chamfer Dimension (Rmin) | — | 1 mm |
| Raceway Diameter Outer Ring (E) | — | 68 mm |
| Fatigue Load Limit, Radial (Cur) | — | 13,900 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.