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| Parameter | SKF61821105 × 130 × 13 mm | FAG61821105 × 130 × 13 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | FAG |
| Designation | 61821 | 61821 |
| Product family | Deep groove ball bearings | — |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings |
| Bore diameterd | 105 mm | 105 mm |
| Outside diameterD | 130 mm | 130 mm |
| WidthB | 13 mm | 13 mm |
| Basic dynamic load ratingC | 20.8 kN | 22.1 kN |
| Basic static load ratingC0 | 19.6 kN | 23.6 kN |
| Fatigue load limitPu | 1 kN | 1.32 kN |
| Reference speednref | 10000 r/min | 3900 r/min |
| Limiting speednG | 6300 r/min | 7100 r/min |
| Mass≈m | 0.322 kg | 0.33 kg |
| Precision class | Normal | PN — Normal (ISO 492:2023) |
| Internal clearance | CN | CN (Group N) — Normal internal clearance |
| Sealing | Without | Without — Not sealed |
| Cage | Sheet metal | JN — Steel sheet metal |
| Bearing material | Bearing steel | — |
| Lubricant | None | Without — Bearing not greased |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 150 °C |
| Calculation factors | ||
| Calculation factorf0 | — | 15.9 |
| Capabilities & suitability | ||
| Radial load capacity | — | Yes |
| Axial load capacity in one direction | — | Yes |
| Axial load capacity in both directions | — | Yes |
| Suitable for grease lubrication | — | Yes |
| Suitable for oil lubrication | — | Yes |
| Unsealed design | — | Yes |
| Dimensions | ||
| Minimum chamfer dimensionrmin | — | 1 mm |
| Minimum chamfer dimensionrmin | — | 0.039 in |
| Shoulder diameter outer ringD1 | — | 122.07 mm |
| Shoulder diameter outer ringD1 | — | 4.806 in |
| Shoulder diameter inner ringd1 | — | 113.2 mm |
| Shoulder diameter inner ringd1 | — | 4.457 in |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | min. 110 mm | — |
| Diameter of housing abutmentD a | max. 125 mm | — |
| Radius of shaft or housing filletr a | max. 1 mm | — |
| Engineering — Calculation data | ||
| Minimum load factork r | 0.02 | — |
| Calculation factorf 0 | 13.2 | — |
| Engineering — Dimensions | ||
| Deviation limits of mid-range bore diametert Δdmp | -0.02 to 0 mm | — |
| Deviation limits of mid-range outside diametert ΔDmp | -0.018 to 0 mm | — |
| Deviation limits of ring widtht ΔBs | -0.2 to 0 mm | — |
| Shoulder diameterd 1 | ≈ 112.25 mm | — |
| Recess diameterD 2 | ≈ 124.4 mm | — |
| Chamfer dimensionr 1,2 | min. 1 mm | — |
| ISO tolerance class for dimensions | Normal | — |
| Engineering — Tolerances of run-out | ||
| Range of section height at inner ring of assembled bearingt Kia | 25 µm | — |
| Range of section height at outer ring of assembled bearingt Kea | 40 µm | — |
| ISO tolerance class for geometrical tolerances | Normal | — |
| Logistics | ||
| Product net weight | 0.322 kg | — |
| eClass code | 23-05-08-01 | — |
| UNSPSC code | 31171504 | — |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | — | 22,100 N |
| Basic dynamic load rating, radialCr | — | 4,968.525 lbf |
| Basic static load rating, radialC0r | — | 23,600 N |
| Basic static load rating, radialC0r | — | 5,305.755 lbf |
| Fatigue load limit, radialCur | — | 1,320 N |
| Fatigue load limit, radialCur | — | 296.763 lbf |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 2893834 |
| Base Type | — | 61821 |
| Gpsd Group | — | S02 |
| Product Line Id | — | 14 |
| SAP material number | — | 3027838900000 |
| Base product | — | 2305080101 |
| Bearing X designation | — | 61821 |
| Mounting Manager ID | — | 61821 |
| Grease application ID | — | 61821 |
| Mounting dimensions | ||
| Minimum diameter shaft shoulderda min | — | 109.6 mm |
| Minimum diameter shaft shoulderda min | — | 4.315 in |
| Maximum diameter of housing shoulderDa max | — | 125.4 mm |
| Maximum diameter of housing shoulderDa max | — | 4.937 in |
| Maximum fillet radiusra max | — | 1 mm |
| Maximum fillet radiusra max | — | 0.039 in |
| Product characteristics | ||
| Type of SealWithout | — | Not sealed |
| Tolerance classPN | — | Normal (ISO 492:2023) |
| Dimensional / heat stabilizationS0 | — | Rings dimensional stabilized up to 150° |
| Radial internal clearanceCN (Group N) | — | Normal internal clearance |
| Bore typeZ | — | Cylindrical |
| Product identity | ||
| Official product category | Deep groove ball bearings | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/deep-groove-ball-bearings | — |
| Structure group ID | BB1_001_101 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Product Identity | ||
| Construction | — | Deep groove ball bearing 618, single row, steel sheet metal cage |
| Short Description | — | Deep groove ball bearing |
| Properties | ||
| Filling slots | Without | — |
| Number of rows | 1 | — |
| Locating feature, bearing outer ring | Without | — |
| Bore type | Cylindrical | — |
| Matched arrangement | No | — |
| Radial internal clearance | CN | — |
| Material, bearing | Bearing steel | — |
| Coating | Without | — |
| Relubrication feature | Without | — |
| Indicative carbon footprint for new product | 1.2 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 105 mm |
| Outside Diameter (D) | — | 130 mm |
| Width (B) | — | 13 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 22,100 N |
| Basic Static Load Rating, Radial (C0R) | — | 23,600 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Limiting Speed (Ng) | — | 7,100 1/min |
| Operating Temperature Max. (Tmax) | — | 150 °C |
| Reference Speed (Nϑr) | — | 3,900 1/min |
| Calculation Factor (F0) | — | 15.9 |
| Fatigue Load Limit, Radial (Cur) | — | 1,320 N |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 109.6 mm |
| Shoulder Diameter Inner Ring (D1) | — | 113.2 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 125.4 mm |
| Minimum Chamfer Dimension (Rmin) | — | 1 mm |
| Maximum Fillet Radius (Ra Max) | — | 1 mm |
| Shoulder Diameter Outer Ring (D1) | — | 122.07 mm |
| Temperature range | ||
| Operating temperature min.Tmin | — | -30 °C |
| Operating temperature min.Tmin | — | -22 °F |
| Operating temperature max.Tmax | — | 150 °C |
| Operating temperature max.Tmax | — | 302 °F |
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.