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| Parameter | SKF5221875 × 135 × mm | FAG5221875 × 135 × 62 mm | NSK5221875 × 135 × 62 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | NSK |
| Designation | 52218 | 52218 | 52218 |
| Product family | Thrust ball bearings | — | Axial deep groove ball bearing |
| Detailed type | Double direction thrust ball bearing | Axial deep groove ball bearings | Axial deep groove ball bearings |
| Bore diameterd | 75 mm | 75 mm | 75 mm |
| Outside diameterD | 135 mm | 135 mm | 135 mm |
| WidthB | — | 62 mm | 62 mm |
| HeightH | 62 mm | — | — |
| Basic dynamic load ratingC | 112 kN | — | — |
| Basic static load ratingC0 | 290 kN | — | — |
| Fatigue load limitPu | 10.4 kN | — | — |
| Reference speednref | 1500 r/min | 3800 r/min | — |
| Limiting speednG | 2000 r/min | 2900 r/min | — |
| Mass≈m | 3.04 kg | 3.055 kg | 3.09 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — |
| Cage | Sheet metal | JP — Steel sheet metal | — |
| Bearing material | Bearing steel | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 150 °C | — |
| Assembly boundary dimensions | |||
| Shaft-washer bore diameterd2 | — | — | 75 mm |
| Overall outside diameterD | — | — | 135 mm |
| Complete assembled heightT1 | — | — | 62 mm |
| Axial load ratings | |||
| Basic dynamic axial load ratingCa | — | — | 114000 N |
| Basic static axial load ratingC0a | — | — | 310000 N |
| Calculation factors | |||
| Minimum load factorA | 0.55 | 0.54 | — |
| Capabilities & suitability | |||
| 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 | — |
| Chamfers | |||
| Minimum housing-side chamferr min. | — | — | 1.1 mm |
| Minimum shaft-side chamferr1 min. | — | — | 1 mm |
| Component dimensions | |||
| Central shaft washer outside diameterd3 | — | — | 135 mm |
| Housing washer bore diameterD1 | — | — | 93 mm |
| Adjacent shaft diameter shown in the catalogue drawing — not the bored | — | — | 90 mm |
| Central shaft washer thicknessB | — | — | 14 mm |
| Partial axial height in the assembly drawingT2 | — | — | 38 mm |
| Construction | |||
| Axial load directions | — | — | Both directions |
| Seat construction | — | — | Flat seat |
| Radial-load support | — | — | Not suitable for radial load; separate radial support required |
| Dimensions | |||
| Inner diameter housing washerD1 | — | 93 mm | — |
| Inner diameter housing washerD1 | — | 3.661 in | — |
| Height shaft washerB | 14 mm | 14 mm | — |
| Height shaft washerB | — | 0.551 in | — |
| Minimum chamfer dimensionrmin | — | 1.1 mm | — |
| Minimum chamfer dimensionrmin | — | 0.043 in | — |
| Minimum chamfer dimensionr1 min | — | 1 mm | — |
| Minimum chamfer dimensionr1 min | — | 0.039 in | — |
| Engineering — Abutment dimensions | |||
| Abutment diameter shaftd a | 90 mm | — | — |
| Abutment diameter housingD a | max. 108 mm | — | — |
| Fillet radius housingr a | max. 1 mm | — | — |
| Fillet radius shaftr b | max. 1 mm | — | — |
| Engineering — Dimensions | |||
| Inner diameter housing washerD 1 | ≈ 93 mm | — | — |
| Chamfer dimension housing washerr 1,2 | min. 1.1 mm | — | — |
| Chamfer dimension shaft washerr 3,4 | min. 1 mm | — | — |
| Logistics | |||
| Product net weight | 3.04 kg | — | — |
| eClass code | 23-05-10-01 | — | — |
| UNSPSC code | 31171507 | — | — |
| Lubrication-qualified speed | |||
| Limiting speed — grease | — | — | 1400 r/min |
| Limiting speed — oil | — | — | 2000 r/min |
| Main Dimensions & Performance Data | |||
| Inner diameter shaft washerd | — | 75 mm | — |
| Inner diameter shaft washerd | — | 2.953 in | — |
| Outer diameter housing washerD | — | 135 mm | — |
| Outer diameter housing washerD | — | 5.315 in | — |
| Basic dynamic load rating, axialCa | — | 119,000 N | — |
| Basic dynamic load rating, axialCa | — | 26,753.597 lbf | — |
| Basic static load rating, axialC0a | — | 300,000 N | — |
| Basic static load rating, axialC0a | — | 67,446.043 lbf | — |
| Fatigue load limit, axialCua | — | 13,000 N | — |
| Fatigue load limit, axialCua | — | 2,922.662 lbf | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 394922 | — |
| Base Type | — | 52218 | — |
| Gpsd Group | — | S03 | — |
| Product Line Id | — | 14 | — |
| X Life Marking | — | n.r. | — |
| SAP material number | — | 0167155860000 | — |
| Base product | — | 2305100102 | — |
| Bearing X designation | — | 52218 | — |
| Mounting Manager ID | — | 52218 | — |
| Grease application ID | — | 52218 | — |
| Mass reference | |||
| Approximate assembly mass | — | — | 3.09 kg |
| Mounting dimensions | |||
| Maximum housing abutment diameterDa max. | — | — | 110 mm |
| Maximum housing-side fillet radiusra max. | — | — | 1 mm |
| Maximum shaft-side fillet radiusrb max. | — | — | 1 mm |
| Maximum diameter shaft shoulderda max | — | 90 mm | — |
| Maximum diameter shaft shoulderda max | — | 3.543 in | — |
| Maximum diameter of housing shoulderDa max | — | 108 mm | — |
| Maximum diameter of housing shoulderDa max | — | 4.252 in | — |
| Maximum filled radiusra max | — | 1 mm | — |
| Maximum filled radiusra max | — | 0.039 in | — |
| Maximum filled radiusra1 max | — | 1 mm | — |
| Maximum filled radiusra1 max | — | 0.039 in | — |
| Product characteristics | |||
| Tolerance classPN | — | Normal (ISO 492:2023) | — |
| Dimensional / heat stabilizationS0 | — | Rings dimensional stabilized up to 150° | — |
| Product identity | |||
| Official product category | Thrust ball bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/thrust-ball-bearings | — | — |
| Structure group ID | BE1_001_002 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Axial deep groove ball bearing 522, double direction, steel sheet metal cage | — |
| Short Description | — | Axial deep groove ball bearing | — |
| Properties | |||
| Axial load capability | Double-direction | — | — |
| Number of rows | 2 | — | — |
| Housing washer type | Flat | — | — |
| Tolerance class | Normal | — | — |
| Material, bearing | Bearing steel | — | — |
| Coating | Without | — | — |
| Indicative carbon footprint for new product | 11.3 kg CO 2 e | — | — |
| Technical Data | |||
| Inner Diameter Shaft Washer (D) | — | 75 mm | — |
| Outside Diameter (D) | — | 135 mm | — |
| Height (T2) | — | 62 mm | — |
| Basic Dynamic Load Rating, Axial (Ca) | — | 119,000 N | — |
| Basic Static Load Rating, Axial (C0A) | — | 300,000 N | — |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Limiting Speed (Ng) | — | 2,900 1/min | — |
| Operating Temperature Max. (Tmax) | — | 150 °C | — |
| Reference Speed (Nϑr) | — | 3,800 1/min | — |
| Height Shaft Washer (B) | — | 14 mm | — |
| Maximum Diameter Of Shaft Shoulder (Da Max) | — | 90 mm | — |
| Minimum Load Factor (A) | — | 0.54 | — |
| Bore Diameter Housing Washer (D1) | — | 93 mm | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 108 mm | — |
| Minimum Chamfer Dimension (Rmin) | — | 1.1 mm | — |
| Maximum Fillet Radius (Ra Max) | — | 1 mm | — |
| Maximum Recess Radius (Ra1 Max) | — | 1 mm | — |
| Minimum Chamfer Dimension (R1 Min) | — | 1 mm | — |
| Fatigue Load Limit, Axial (Cua) | — | 13,000 N | — |
| 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.