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| Parameter | SKF1211 ETN955 × 100 × 21 mm | FAG1211-TVH55 × 100 × 21 mm | NSK121155 × 100 × 21 mm | KOYO121155 × 100 × 21 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | FAG | NSK | KOYO |
| Designation | 1211 ETN9 | 1211-TVH | 1211 | 1211 |
| Product family | Self-aligning ball bearings | — | Self-aligning ball bearing | Open type |
| Detailed type | Self-aligning ball bearings | Self-aligning ball bearings | Self-aligning ball bearings | Self-aligning ball bearings |
| Series | — | 1211 | — | — |
| Bore diameterd | 55 mm | 55 mm | 55 mm | 55 mm |
| Outside diameterD | 100 mm | 100 mm | 100 mm | 100 mm |
| WidthB | 21 mm | 21 mm | 21 mm | 21 mm |
| Basic dynamic load ratingC | 27.6 kN | 27 kN | 29.6 kN | 33.5 kN |
| Basic static load ratingC0 | 10.6 kN | 10 kN | 10 kN | 10 kN |
| Fatigue load limitPu | 0.54 kN | 0.63 kN | — | 0.63 kN |
| Reference speednref | 14000 r/min | 6900 r/min | — | — |
| Limiting speednG | 9000 r/min | 7700 r/min | — | 5800 r/min |
| Mass≈m | 0.686 kg | 0.733 kg | 0.708 kg | 0.705 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | — |
| Sealing | Without | Without — Not sealed | — | Open |
| Cage | Non-metallic | TVH — Solid cage made of glass-fiber reinforced polyamide PA66 | — | — |
| Bearing material | Bearing steel | — | — | — |
| Lubricant | None | Without — Bearing not greased | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — |
| Maximum operating temperatureTmax | — | 120 °C | — | — |
| Boundary dimensions | ||||
| Bearing widthB | — | — | 21 mm | — |
| Minimum bearing chamferr min. | — | — | 1.5 mm | — |
| Calculation factors | ||||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | — | 0.19 | — | — |
| Dynamic axial load factorY1 | — | 3.32 | — | — |
| Dynamic axial load factorY2 | — | 5.15 | — | — |
| Static axial load factorY0 | — | 3.48 | 3.3 | — |
| 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 | — | — |
| Classification | ||||
| Official Category Path | — | — | — | Self-aligning ball bearings - Open type |
| Official Classification 1 | — | — | — | Self-aligning ball bearings / Open type |
| Construction | ||||
| Bore construction | — | — | Cylindrical bore | — |
| Dimensions | ||||
| Minimum chamfer dimensionrmin | — | 1.5 mm | — | — |
| Minimum chamfer dimensionrmin | — | 0.059 in | — | — |
| Shoulder diameter outer ringD1 | — | 86.44 mm | — | — |
| Shoulder diameter outer ringD1 | — | 3.403 in | — | — |
| Shoulder diameter inner ringd1 | — | 69.5 mm | — | — |
| Shoulder diameter inner ringd1 | — | 2.736 in | — | — |
| Engineering — Abutment dimensions | ||||
| Abutment diameter shaftd a | min. 64 mm | — | — | — |
| Abutment diameter housingD a | max. 91 mm | — | — | — |
| Fillet radiusr a | max. 1.5 mm | — | — | — |
| Engineering — Calculation data | ||||
| Permissible angular misalignmentα | 2.5 ° | — | — | — |
| Calculation factork r | 0.04 | — | — | — |
| Limiting valuee | 0.2 | — | — | — |
| Calculation factorY 0 | 3.2 | — | — | — |
| Calculation factorY 1 | 3.2 | — | — | — |
| Calculation factorY 2 | 4.9 | — | — | — |
| Engineering — Dimensions | ||||
| Shoulder diameter inner ringd 1 | ≈ 70.3 mm | — | — | — |
| Shoulder diameter outer ringD 1 | ≈ 86.5 mm | — | — | — |
| Chamfer dimensionr 1,2 | min. 1.5 mm | — | — | — |
| Engineering — Engineering specifications | ||||
| Bore type | Cylindrical | — | — | — |
| Equivalent-load factors | ||||
| Dynamic load ratio thresholde | — | — | 0.2 | — |
| Dynamic axial factor above thresholdY2 | — | — | 4.9 | — |
| Dynamic axial factor at or below thresholdY3 | — | — | 3.2 | — |
| Load ratings | ||||
| Basic dynamic radial load ratingCr | — | — | 29600 N | — |
| Basic static radial load ratingC0r | — | — | 10000 N | — |
| Logistics | ||||
| Product net weight | 0.686 kg | — | — | — |
| eClass code | 23-05-08-06 | — | — | — |
| UNSPSC code | 31171532 | — | — | — |
| Lubrication-qualified speed | ||||
| Limiting speed with grease | — | — | 6000 r/min | — |
| Limiting speed with oil | — | — | 7100 r/min | — |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | — | 27,000 N | — | — |
| Basic dynamic load rating, radialCr | — | 6,070.144 lbf | — | — |
| Basic static load rating, radialC0r | — | 10,000 N | — | — |
| Basic static load rating, radialC0r | — | 2,248.201 lbf | — | — |
| Fatigue load limit, radialCur | — | 630 N | — | — |
| Fatigue load limit, radialCur | — | 141.637 lbf | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 365853 | — | — |
| Official Class Key | — | — | — | 030-010-000 |
| Base Type | — | 1211 | — | — |
| Old Designation | — | ["1211TV"] | — | — |
| Gpsd Group | — | S03 | — | — |
| Product Line Id | — | 14 | — | — |
| X Life Marking | — | n.r. | — | — |
| SAP material number | — | 0167004060000 | — | — |
| Base product | — | 2305080601 | — | — |
| Bearing X designation | — | 1211-TVH | — | — |
| Mounting Manager ID | — | 1211-TVH | — | — |
| Grease application ID | — | 1211-TVH | — | — |
| Mounting dimensions | ||||
| Minimum shaft shoulder diameterda min. | — | — | 63 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | 92 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | 1.5 mm | — |
| Minimum diameter shaft shoulderda min | — | 64 mm | — | — |
| Minimum diameter shaft shoulderda min | — | 2.52 in | — | — |
| Maximum diameter of housing shoulderDa max | — | 91 mm | — | — |
| Maximum diameter of housing shoulderDa max | — | 3.583 in | — | — |
| Maximum fillet radiusra max | — | 1.5 mm | — | — |
| Maximum fillet radiusra max | — | 0.059 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 | ||||
| Official product category | Self-aligning ball bearings | — | — | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/self-aligning-ball-bearings | — | — | — |
| Structure group ID | BJ1_001 | — | — | — |
| Available from SKF | Yes | — | — | — |
| Remanufacturable | No | — | — | — |
| Product Identity | ||||
| Construction | — | Self-aligning ball bearing 12..-TVH, plastic cage | — | — |
| Short Description | — | Self-aligning ball bearing | — | — |
| Properties | ||||
| Retaining feature, inner ring | None | — | — | — |
| Locating feature, bearing outer ring | Without | — | — | — |
| Number of rows | 2 | — | — | — |
| Radial internal clearance | CN | — | — | — |
| Tolerance class | Normal | — | — | — |
| Material, bearing | Bearing steel | — | — | — |
| Coating | Without | — | — | — |
| Relubrication feature | Without | — | — | — |
| Indicative carbon footprint for new product | 2.5 kg CO 2 e | — | — | — |
| Reference mass | ||||
| Approximate catalogue mass | — | — | 0.708 kg | — |
| Technical Data | ||||
| d | — | — | — | 100 mm |
| B | — | — | — | 21 mm |
| R(Min.) | — | — | — | 1.5 mm |
| Basic Load Ratings : Cr | — | — | — | 33.5 kN |
| Basic Load Ratings : C0R | — | — | — | 10.0 kN |
| Bore Diameter (D) | — | 55 mm | — | — |
| Fatigue Load Limit : Cu | — | — | — | 0.63 kN |
| Outside Diameter (D) | — | 100 mm | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | 5800 min-1 |
| Width (B) | — | 21 mm | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | 7100 min-1 |
| Basic Dynamic Load Rating, Radial (Cr) | — | 27,000 N | — | — |
| Constant :E | — | — | — | 0.20 |
| Basic Static Load Rating, Radial (C0R) | — | 10,000 N | — | — |
| Axial Load Factors : Y1 | — | — | — | 3.19 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Axial Load Factors : Y2 | — | — | — | 4.94 |
| Limiting Speed (Ng) | — | 7,700 1/min | — | — |
| Axial Load Factors : Y0 | — | — | — | 3.34 |
| Operating Temperature Max. (Tmax) | — | 120 °C | — | — |
| Da(Min.) | — | — | — | 63 mm |
| Reference Speed (Nϑr) | — | 6,900 1/min | — | — |
| Da(Max.) | — | — | — | 92 mm |
| Fatigue Load Limit, Radial (Cur) | — | 630 N | — | — |
| Ra(Max.) | — | — | — | 1.5 mm |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | — | 0.19 | — | — |
| Mass(Refer.) | — | — | — | 0.705 kg |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 64 mm | — | — |
| Shoulder Diameter Inner Ring (D1) | — | 69.5 mm | — | — |
| Dynamic Axial Load Factor (Y1) | — | 3.32 | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 91 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 1.5 mm | — | — |
| Maximum Fillet Radius (Ra Max) | — | 1.5 mm | — | — |
| Shoulder Diameter Outer Ring (D1) | — | 86.44 mm | — | — |
| Dynamic Axial Load Factor (Y2) | — | 5.15 | — | — |
| Static Axial Load Factor (Y0) | — | 3.48 | — | — |
| Temperature range | ||||
| Operating temperature min.Tmin | — | -30 °C | — | — |
| Operating temperature min.Tmin | — | -22 °F | — | — |
| Operating temperature max.Tmax | — | 120 °C | — | — |
| Operating temperature max.Tmax | — | 248 °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.