Cross-brand designation analysis
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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.
Dimensions verified
“51226” across 3 loaded brands
At least two brands share the same bore, outside diameter and width. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | FAG51226130 × 190 × 45 mm | NSK51226X130 × 190 × 45 mm | KOYO51226130 × 190 × 45 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | FAG | NSK | KOYO |
| Designation | 51226 | 51226X | 51226 |
| Product family | — | Axial deep groove ball bearing | Single direction / With flat back faces |
| Detailed type | Axial deep groove ball bearings | Axial deep groove ball bearings | Axial deep groove ball bearings |
| Bore diameterd | 130 mm | 130 mm | 130 mm |
| Outside diameterD | 190 mm | 190 mm | 190 mm |
| WidthB | 45 mm | 45 mm | 45 mm |
| Fatigue load limitPu | — | — | 22.2 kN |
| Reference speednref | 2850 r/min | — | — |
| Limiting speednG | 2210 r/min | — | 970 r/min |
| Mass≈m | 3.946 kg | 3.95 kg | 4.09 kg |
| Precision class | PN — Normal (ISO 492:2023) | — | — |
| Cage | JP — Steel sheet metal | — | — |
| Minimum operating temperatureTmin | -30 °C | — | — |
| Maximum operating temperatureTmax | 150 °C | — | — |
| Assembly boundary dimensions | |||
| Shaft-washer bore diameterd | — | 130 mm | — |
| Overall outside diameterD | — | 190 mm | — |
| Complete assembled heightT | — | 45 mm | — |
| Axial load ratings | |||
| Basic dynamic axial load ratingCa | — | 183000 N | — |
| Basic static axial load ratingC0a | — | 550000 N | — |
| Calculation factors | |||
| Minimum load factorA | 1.7 | — | — |
| Capabilities & suitability | |||
| Axial load capacity in one direction | Yes | — | — |
| Suitable for grease lubrication | Yes | — | — |
| Suitable for oil lubrication | Yes | — | — |
| Unsealed design | Yes | — | — |
| Chamfers | |||
| Minimum housing-side chamferr min. | — | 1.5 mm | — |
| Classification | |||
| Official Category Path | — | — | Thrust ball bearings - Single direction - With flat back faces |
| Official Classification 1 | — | — | Thrust ball bearings / Single direction / With flat back faces |
| Component dimensions | |||
| Shaft washer outside diameterd1 | — | 187 mm | — |
| Housing washer bore diameterD1 | — | 133 mm | — |
| Construction | |||
| Axial load directions | — | One direction | — |
| Seat construction | — | Flat seat | — |
| Radial-load support | — | Not suitable for radial load; separate radial support required | — |
| Dimensions | |||
| Minimum chamfer dimensionrmin | 1.5 mm | — | — |
| Minimum chamfer dimensionrmin | 0.059 in | — | — |
| Inner diameter housing washerD1 | 133 mm | — | — |
| Inner diameter housing washerD1 | 5.236 in | — | — |
| Outer diameter shaft washerd1 | 187 mm | — | — |
| Outer diameter shaft washerd1 | 7.362 in | — | — |
| Lubrication-qualified speed | |||
| Limiting speed — grease | — | 1100 r/min | — |
| Limiting speed — oil | — | 1600 r/min | — |
| Main Dimensions & Performance Data | |||
| Inner diameter shaft washerd | 130 mm | — | — |
| Inner diameter shaft washerd | 5.118 in | — | — |
| Outer diameter housing washerD | 190 mm | — | — |
| Outer diameter housing washerD | 7.48 in | — | — |
| Basic dynamic load rating, axialCa | 184,000 N | — | — |
| Basic dynamic load rating, axialCa | 41,366.906 lbf | — | — |
| Basic static load rating, axialC0a | 540,000 N | — | — |
| Basic static load rating, axialC0a | 121,402.878 lbf | — | — |
| Fatigue load limit, axialCua | 19,500 N | — | — |
| Fatigue load limit, axialCua | 4,383.993 lbf | — | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | 394568 | — | — |
| Official Class Key | — | — | 070-010-000 |
| Base Type | 51226 | — | — |
| Gpsd Group | S02 | — | — |
| Product Line Id | 14 | — | — |
| X Life Marking | n.r. | — | — |
| SAP material number | 0167152090000 | — | — |
| Base product | 2305100101 | — | — |
| Bearing X designation | 51226 | — | — |
| Mounting Manager ID | 51226 | — | — |
| Grease application ID | 51226 | — | — |
| Mass reference | |||
| Approximate assembly mass | — | 3.95 kg | — |
| Mounting dimensions | |||
| Minimum shaft abutment diameterda min. | — | 166 mm | — |
| Maximum housing abutment diameterDa max. | — | 154 mm | — |
| Maximum housing-side fillet radiusra max. | — | 1.5 mm | — |
| Minimum diameter shaft shoulderda min | 166 mm | — | — |
| Minimum diameter shaft shoulderda min | 6.535 in | — | — |
| Maximum diameter of housing shoulderDa max | 154 mm | — | — |
| Maximum diameter of housing shoulderDa max | 6.063 in | — | — |
| Maximum filled radiusra max | 1.5 mm | — | — |
| Maximum filled radiusra max | 0.059 in | — | — |
| Product characteristics | |||
| Tolerance classPN | Normal (ISO 492:2023) | — | — |
| Dimensional / heat stabilizationS0 | Rings dimensional stabilized up to 150° | — | — |
| Product Identity | |||
| Construction | Axial deep groove ball bearing 512, single direction, steel sheet metal cage | — | — |
| Short Description | Axial deep groove ball bearing | — | — |
| Technical Data | |||
| d | — | — | 190 mm |
| T | — | — | 45 mm |
| R(Min.) | — | — | 1.5 mm |
| Bore Diameter (D) | 130 mm | — | — |
| Basic Load Ratings Ca | — | — | 254 kN |
| Outside Diameter (D) | 190 mm | — | — |
| Basic Load Ratings C0A | — | — | 620 kN |
| Width (B) | 45 mm | — | — |
| Fatigue Load Limit : Cu | — | — | 22.2 kN |
| Basic Dynamic Load Rating, Axial (Ca) | 184,000 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 970 min-1 |
| Basic Static Load Rating, Axial (C0A) | 540,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 1500 min-1 |
| Operating Temperature Min. (Tmin) | -30 °C | — | — |
| D1(Max.) | — | — | 187 mm |
| Limiting Speed (Ng) | 2,210 1/min | — | — |
| D1(Min.) | — | — | 133 mm |
| Operating Temperature Max. (Tmax) | 150 °C | — | — |
| D2 | — | — | - mm |
| Reference Speed (Nϑr) | 2,850 1/min | — | — |
| D3 | — | — | - mm |
| Minimum Diameter Shaft Shoulder (Da Min) | 166 mm | — | — |
| A | — | — | - mm |
| Minimum Load Factor (A) | 1.7 | — | — |
| R | — | — | - mm |
| Rip Diameter Shaft Washer (D1) | 187 mm | — | — |
| C | — | — | - mm |
| Bore Diameter Housing Washer (D1) | 133 mm | — | — |
| Da(Min.) | — | — | 166 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | 154 mm | — | — |
| Da(Max.) | — | — | 154 mm |
| Minimum Chamfer Dimension (Rmin) | 1.5 mm | — | — |
| Ra(Max.) | — | — | 1.5 mm |
| Maximum Fillet Radius (Ra Max) | 1.5 mm | — | — |
| Mass(Refer.) | — | — | 4.09 kg |
| Fatigue Load Limit, Axial (Cua) | 19,500 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 | — | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.