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| Parameter | SKFRNA 6911Double row needle roller bearing with machined rings, with flanges, without an inner ring | INARNA6911-ZW-XL63 × 80 × mm | KOYORNA6911Needle roller bearings | IKORNA691163 × 80 × 45 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | INA | KOYO | IKO |
| Designation | RNA 6911 | RNA6911-ZW-XL | RNA6911 | RNA6911 |
| Product family | Needle roller bearings | — | Heavy-duty needle roller bearings / Metric series, caged, without inner ring | Machined Type Needle Roller Bearings |
| Detailed type | Double row needle roller bearing with machined rings, with flanges, without an inner ring | Radial roller bearing | Needle roller bearings | Needle roller bearings |
| Series | — | RNA6911 | — | RNA69 |
| Bore diameterd | — | 63 mm | — | 63 mm |
| Outside diameterD | 80 mm | 80 mm | 80 mm | 80 mm |
| WidthB | 45 mm | — | — | 45 mm |
| Basic dynamic load ratingC | 104 kN | 102 kN | 94.2 kN | 98.7 kN |
| Basic static load ratingC0 | 190 kN | 176 kN | 172 kN | 194 kN |
| Fatigue load limitPu | 24 kN | 30.5 kN | 27.8 kN | — |
| Reference speednref | 6300 r/min | 4200 r/min | — | 3900 r/min |
| Limiting speednG | 7000 r/min | 7200 r/min | 4500 r/min | 6500 r/min |
| Mass≈m | 0.47 kg | 0.485 kg | 0.54 kg | 0.475002 kg |
| Precision class | — | — | — | JIS, Class 0 |
| Sealing | Without | — | — | — |
| Cage | Sheet steel | — | — | 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 |
| 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 | 63.0 mm | — | — | — |
| Engineering — Abutment dimensions | ||||
| Diameter of housing abutmentD a | max. 75 mm | — | — | — |
| Fillet radiusr a | max. 1 mm | — | — | — |
| Engineering — Associated seals | ||||
| Radial shaft seal | 63x80x8 CRW1 R | — | — | — |
| Engineering — Calculation data | ||||
| SKF performance class | SKF Explorer | — | — | — |
| Engineering — Dimensions | ||||
| Diameter under rollersF w | 63 mm | — | — | — |
| Chamfer dimension outer ringr 1,2 | min. 1 mm | — | — | — |
| Logistics | ||||
| Product net weight | 0.47 kg | — | — | — |
| eClass code | 23-05-09-03 | — | — | — |
| UNSPSC code | 31171512 | — | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 393548 | — | — |
| Official Class Key | — | — | 090-030-010 | — |
| Base Type | — | RNA6911 | — | — |
| Old Designation | — | ["RNA6911-ZW"] | — | — |
| Gpsd Group | — | I01 | — | — |
| Product Line Id | — | 09 | — | — |
| X Life Marking | — | XL | — | — |
| Cad Part Number | — | — | — | RNA6911 |
| Materials | ||||
| Rolling Element Material | — | — | — | SUJ2 |
| Retainer Material | — | — | — | Steel |
| Product Identity | ||||
| Short Description | — | Radial roller bearing | — | Machined Type Needle Roller Bearings |
| Long Description | — | — | — | Machined Type Needle Roller Bearings, High Carbon Steel, Oil Hole |
| Official Bearing Family | — | — | — | Needle Roller Bearings |
| Official Bearing Type | — | — | — | Machined Type Needle Roller Bearings |
| Construction | — | Needle roller bearings RNA, to DIN 617/ISO 1206 | — | — |
| 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 | — | — | — |
| Properties | ||||
| Bearing part | Bearing without inner ring | — | — | — |
| Number of rows | 2 | — | — | — |
| Outer ring type | Machined (solid) | — | — | — |
| Aligning feature | Without | — | — | — |
| Number of flanges, outer ring | 3 | — | — | — |
| Tolerance class | Normal | — | — | — |
| Material, bearing | Bearing steel | — | — | — |
| Coating | Without | — | — | — |
| Relubrication feature | With | — | — | — |
| Indicative carbon footprint for new product | 1.7 kg CO 2 e | — | — | — |
| Technical Data | ||||
| Rolling Element | — | — | — | Roller |
| Relubricatable | — | — | — | Yes |
| Fw | — | — | 63 mm | — |
| D | — | — | 80 mm | — |
| C | — | — | 45 mm | — |
| R(Min.) | — | — | 1? mm | — |
| Basic Load Ratings : Cr | — | — | 94.2 kN | — |
| Basic Load Ratings : C0R | — | — | 172? kN | — |
| Under Roller Diameter (Fw) | — | 63 mm | — | — |
| Fatigue Load Limit : Cu | — | — | 27.8 kN | — |
| Outside Diamater (D) | — | 80 mm | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 4500 min-1 | — |
| Basic Dynamic Load Rating, Radial (Cr) | — | 102,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 6900 min-1 | — |
| Basic Static Load Rating, Radial (C0R) | — | 176,000 N | — | — |
| (Refer.)Mass | — | — | 0.540? kg | — |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Mass(Refer.) | — | — | 0.540? kg | — |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 4,300 1/min | — | — |
| Operating Temperature Max. (Tmax) | — | 120 °C | — | — |
| Limiting Speed (Limiting Spe) | — | 7,200 1/min | — | — |
| Reference Speed (Nϑr) | — | 4,200 1/min | — | — |
| Width, Outer Ring (C) | — | 45 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 1 mm | — | — |
| Fatigue Load Limit, Radial (Cur) | — | 30,500 N | — | — |
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