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| Parameter | SKFBK 2520Drawn cup needle roller bearing with a closed end | INABK252025 × 32 × 20 mm | KOYOBK2520Needle roller bearings |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | INA | KOYO |
| Designation | BK 2520 | BK2520 | BK2520 |
| Product family | Needle roller bearings | — | Drawn cup needle roller bearings / Metric series, caged |
| Detailed type | Drawn cup needle roller bearing with a closed end | Drawn cup needle roller bearing closed end | Needle roller bearings |
| Bore diameterd | — | 25 mm | — |
| Outside diameterD | 32 mm | 32 mm | 32 mm |
| WidthB | 20 mm | 20 mm | — |
| Basic dynamic load ratingC | 19 kN | 19.9 kN | 20.6 kN |
| Basic static load ratingC0 | 32.5 kN | 33 kN | 33.4 kN |
| Fatigue load limitPu | 4 kN | 4.3 kN | 5.3 kN |
| Reference speednref | 9500 r/min | 7400 r/min | — |
| Limiting speednG | 11000 r/min | 10200 r/min | 8500 r/min |
| Mass≈m | 0.039 kg | 0.038 kg | 0.043 kg |
| Sealing | Without | — | — |
| Cage | Sheet steel | — | — |
| Bearing material | Bearing steel | — | — |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 140 °C | — |
| Classification | |||
| Official Category Path | — | — | Needle roller bearings - Drawn cup needle roller bearings - Metric series, caged |
| Official Classification 1 | — | — | Needle roller bearings / Drawn cup needle roller bearings / Metric series, caged |
| Dimensions | |||
| Bore diameter of needle roller complement | 25.0 mm | — | — |
| Engineering — Associated products | |||
| Inner ring IR series | IR 20x25x20.5 | — | — |
| Inner ring LR series | LR 20x25x20.5 | — | — |
| Radial shaft seal with a low cross-sectional height, single lip | G 25x32x4 | — | — |
| Engineering — Dimensions | |||
| Diameter under rollersF w | 25 mm | — | — |
| Depth of the drawn cup BKC 1 | min. 17.3 mm | — | — |
| Chamfer dimension drawn cup (outer ring)r | min. 0.8 mm | — | — |
| Logistics | |||
| Product net weight | 0.039 kg | — | — |
| eClass code | 23-05-09-03 | — | — |
| UNSPSC code | 31171512 | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 382300 | — |
| Official Class Key | — | — | 090-020-010 |
| Base Type | — | BK2520 | — |
| Old Designation | — | ["BK 2520"] | — |
| Gpsd Group | — | I01 | — |
| Product Line Id | — | 09 | — |
| X Life Marking | — | n.r. | — |
| Product identity | |||
| Official product category | Needle roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/needle-roller-bearings/drawn-cup-needle-roller-bearings | — | — |
| Structure group ID | BND_001 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Drawn cup needle roller bearings with closed end BK, to DIN 618/ISO 3245 | — |
| Short Description | — | Drawn cup needle roller bearing closed end | — |
| Properties | |||
| Bearing part | Bearing without inner ring | — | — |
| Number of rows | 1 | — | — |
| Outer ring type | Drawn cup with one closed end | — | — |
| Aligning feature | Without | — | — |
| Number of flanges, outer ring | 2 | — | — |
| Tolerance class | Normal | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Indicative carbon footprint for new product | 0.14 kg CO 2 e | — | — |
| Technical Data | |||
| Fw | — | — | 25 mm |
| D | — | — | 32 mm |
| C | — | — | 20 mm |
| C3(Min.) | — | — | 17.3 mm |
| R(Min.) | — | — | 1 mm |
| Under Roller Diameter (Fw) | — | 25 mm | — |
| Basic Load Ratings : Cr | — | — | 20.60 kN |
| Outside Diamater (D) | — | 32 mm | — |
| Basic Load Ratings : C0R | — | — | 33.40 kN |
| Width, Outer Ring (C) | — | 20 mm | — |
| Fatigue Load Limit : Cu | — | — | 5.30 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 19,900 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 8500 min-1 |
| Basic Static Load Rating, Radial (C0R) | — | 33,000 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 13000 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Mounting Inner Ring | — | — | JR20x25x20,5 |
| Operating Temperature Max. (Tmax) | — | 140 °C | — |
| Mass(Refer.) | — | — | 0.043 kg |
| Limiting Speed (Limiting Spe) | — | 10,200 1/min | — |
| Reference Speed (Nϑr) | — | 7,400 1/min | — |
| Minimum Width To Base Of Drawn Cup With Closed End (Ct Min) | — | 17.3 mm | — |
| Minimum Chamfer Dimension (Rmin) | — | 0.8 mm | — |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 6,100 1/min | — |
| Fatigue Load Limit, Radial (Cur) | — | 4,300 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.