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| Parameter | SKFHK 1812Drawn cup needle roller bearing with open ends | INAHK181218 × 24 × 12 mm | KOYOHK1812Needle roller bearings |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | INA | KOYO |
| Designation | HK 1812 | HK1812 | HK1812 |
| Product family | Needle roller bearings | — | Drawn cup needle roller bearings / Metric series, caged |
| Detailed type | Drawn cup needle roller bearing with open ends | Drawn cup needle roller bearing open end | Needle roller bearings |
| Bore diameterd | — | 18 mm | — |
| Outside diameterD | 24 mm | 24 mm | 24 mm |
| WidthB | 12 mm | 12 mm | — |
| Basic dynamic load ratingC | 7.92 kN | 8.1 kN | 8.41 kN |
| Basic static load ratingC0 | 11.2 kN | 10.9 kN | 11.11 kN |
| Fatigue load limitPu | 1.27 kN | 1.33 kN | 1.7 kN |
| Reference speednref | 13000 r/min | 10700 r/min | — |
| Limiting speednG | 15000 r/min | 14000 r/min | 12000 r/min |
| Mass≈m | 0.0124 kg | 0.01244 kg | 0.015 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 | 18.0 mm | — | — |
| Engineering — Associated products | |||
| Inner ring LR series | LR 15x18x12.5 | — | — |
| Radial shaft seal with a low cross-sectional height, single lip | G 18x24x3 | — | — |
| Radial shaft seal with a low cross-sectional height, double lip | SD 18x24x3 | — | — |
| Engineering — Dimensions | |||
| Diameter under rollersF w | 18 mm | — | — |
| Chamfer dimension drawn cup (outer ring)r | min. 0.8 mm | — | — |
| Logistics | |||
| Product net weight | 0.0124 kg | — | — |
| eClass code | 23-05-09-03 | — | — |
| UNSPSC code | 31171512 | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 381695 | — |
| Official Class Key | — | — | 090-020-010 |
| Base Type | — | HK1812 | — |
| 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 open ends HK, to DIN 618/ISO 3245 | — |
| Short Description | — | Drawn cup needle roller bearing open end | — |
| Properties | |||
| Bearing part | Bearing without inner ring | — | — |
| Number of rows | 1 | — | — |
| Outer ring type | Drawn cup with open ends | — | — |
| 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 | 0.05 kg CO 2 e | — | — |
| Technical Data | |||
| Fw | — | — | 18 mm |
| D | — | — | 24 mm |
| C | — | — | 12 mm |
| R(Min.) | — | — | 1 mm |
| Under Roller Diameter (Fw) | — | 18 mm | — |
| Basic Load Ratings : Cr | — | — | 8.41 kN |
| Outside Diamater (D) | — | 24 mm | — |
| Basic Load Ratings : C0R | — | — | 11.11 kN |
| Width (C) | — | 12 mm | — |
| Fatigue Load Limit : Cu | — | — | 1.70 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 8,100 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 12000 min-1 |
| Basic Static Load Rating, Radial (C0R) | — | 10,900 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 18000 min-1 |
| Width, Outer Ring (C1) | — | 12 mm | — |
| Mass(Refer.) | — | — | 0.015 kg |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Limiting Speed For Grease Lubrication (Ng Grea) | — | 8,400 1/min | — |
| Operating Temperature Max. (Tmax) | — | 140 °C | — |
| Limiting Speed (Limiting Spe) | — | 14,000 1/min | — |
| Reference Speed (Nϑr) | — | 10,700 1/min | — |
| Minimum Chamfer Dimension (Rmin) | — | 0.8 mm | — |
| Fatigue Load Limit, Radial (Cur) | — | 1,330 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.