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| Parameter | FAG1221-M105 × 190 × 36 mm | NSK1221105 × 190 × 36 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | NSK |
| Designation | 1221-M | 1221 |
| Product family | — | Self-aligning ball bearing |
| Detailed type | Self-aligning ball bearings | Self-aligning ball bearings |
| Series | 1221 | — |
| Bore diameterd | 105 mm | 105 mm |
| Outside diameterD | 190 mm | 190 mm |
| WidthB | 36 mm | 36 mm |
| Basic dynamic load ratingC | 75 kN | 82.5 kN |
| Basic static load ratingC0 | 32.5 kN | 32.5 kN |
| Fatigue load limitPu | 1.69 kN | — |
| Reference speednref | 4350 r/min | — |
| Limiting speednG | 5700 r/min | — |
| Mass≈m | 4.59 kg | 4.43 kg |
| Precision class | PN — Normal (ISO 492:2023) | — |
| Internal clearance | CN (Group N) — Normal internal clearance | — |
| Sealing | Without — Not sealed | — |
| Cage | M — Solid brass cage, ball guided | — |
| Lubricant | Without — Bearing not greased | — |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 150 °C | — |
| Boundary dimensions | ||
| Bearing widthB | — | 36 mm |
| Minimum bearing chamferr min. | — | 2.1 mm |
| Calculation factors | ||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | 0.18 | — |
| Dynamic axial load factorY1 | 3.52 | — |
| Dynamic axial load factorY2 | 5.45 | — |
| Static axial load factorY0 | 3.69 | 3.7 |
| 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 | — |
| Staticangularerrorandmisalignment | Yes | — |
| Dynamicangularerrorandmisalignment | Yes | — |
| Construction | ||
| Bore construction | — | Cylindrical bore |
| Dimensions | ||
| Minimum chamfer dimensionrmin | 2.1 mm | — |
| Minimum chamfer dimensionrmin | 0.083 in | — |
| Shoulder diameter outer ringD1 | 164.3 mm | — |
| Shoulder diameter outer ringD1 | 6.469 in | — |
| Shoulder diameter inner ringd1 | 133.9 mm | — |
| Shoulder diameter inner ringd1 | 5.272 in | — |
| Equivalent-load factors | ||
| Dynamic load ratio thresholde | — | 0.18 |
| Dynamic axial factor above thresholdY2 | — | 5.5 |
| Dynamic axial factor at or below thresholdY3 | — | 3.6 |
| Load ratings | ||
| Basic dynamic radial load ratingCr | — | 82500 N |
| Basic static radial load ratingC0r | — | 32500 N |
| Lubrication-qualified speed | ||
| Limiting speed with grease | — | 3000 r/min |
| Limiting speed with oil | — | 3600 r/min |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | 75,000 N | — |
| Basic dynamic load rating, radialCr | 16,861.511 lbf | — |
| Basic static load rating, radialC0r | 32,500 N | — |
| Basic static load rating, radialC0r | 7,306.655 lbf | — |
| Fatigue load limit, radialCur | 1,690 N | — |
| Fatigue load limit, radialCur | 379.946 lbf | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 365804 | — |
| Base Type | 1221 | — |
| Old Designation | ["1221M"] | — |
| Gpsd Group | S03 | — |
| Product Line Id | 14 | — |
| X Life Marking | n.r. | — |
| SAP material number | 0190100520000 | — |
| Base product | 2305080601 | — |
| Bearing X designation | 1221-M | — |
| Mounting Manager ID | 1221-M | — |
| Grease application ID | 1221-M | — |
| Mounting dimensions | ||
| Minimum shaft shoulder diameterda min. | — | 116 mm |
| Maximum housing shoulder diameterDa max. | — | 179 mm |
| Maximum adjacent fillet radiusra max. | — | 2 mm |
| Minimum diameter shaft shoulderda min | 117 mm | — |
| Minimum diameter shaft shoulderda min | 4.606 in | — |
| Maximum diameter of housing shoulderDa max | 178 mm | — |
| Maximum diameter of housing shoulderDa max | 7.008 in | — |
| Maximum fillet radiusra max | 2.1 mm | — |
| Maximum fillet radiusra max | 0.083 in | — |
| Product characteristics | ||
| Bore typeZ | Cylindrical | — |
| Type of SealWithout | Not sealed | — |
| Tolerance classPN | Normal (ISO 492:2023) | — |
| Radial internal clearanceCN (Group N) | Normal internal clearance | — |
| Product Identity | ||
| Construction | Self-aligning ball bearing 12..-M, solid brass cage | — |
| Short Description | Self-aligning ball bearing | — |
| Reference mass | ||
| Approximate catalogue mass | — | 4.43 kg |
| Technical Data | ||
| Bore Diameter (D) | 105 mm | — |
| Outside Diameter (D) | 190 mm | — |
| Width (B) | 36 mm | — |
| Basic Dynamic Load Rating, Radial (Cr) | 75,000 N | — |
| Basic Static Load Rating, Radial (C0R) | 32,500 N | — |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Limiting Speed (Ng) | 5,700 1/min | — |
| Operating Temperature Max. (Tmax) | 150 °C | — |
| Reference Speed (Nϑr) | 4,350 1/min | — |
| Fatigue Load Limit, Radial (Cur) | 1,690 N | — |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.18 | — |
| Minimum Diameter Shaft Shoulder (Da Min) | 117 mm | — |
| Shoulder Diameter Inner Ring (D1) | 133.9 mm | — |
| Dynamic Axial Load Factor (Y1) | 3.52 | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | 178 mm | — |
| Minimum Chamfer Dimension (Rmin) | 2.1 mm | — |
| Maximum Fillet Radius (Ra Max) | 2.1 mm | — |
| Shoulder Diameter Outer Ring (D1) | 164.3 mm | — |
| Dynamic Axial Load Factor (Y2) | 5.45 | — |
| Static Axial Load Factor (Y0) | 3.69 | — |
| 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.