Cross-brand designation analysis
COMPARE / VERIFY
Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Designation candidates
“1221” across 2 loaded brands
One highest-ranked designation candidate is shown per manufacturer. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| 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 | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.