Cross-brand designation analysis
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Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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One base designation across loaded brands
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Dimensions differ
“30321” across 3 loaded brands
The base designation is shared, but the loaded boundary dimensions do not agree. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKF30321105 × 225 × mm | FAG30321-XL105 × 225 × 53.5 mm | KOYO30321105 × 225 × 49 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | FAG | KOYO |
| Designation | 30321 | 30321-XL | 30321 |
| Product family | Tapered roller bearings | — | Single-row / Metric series |
| Detailed type | Single row tapered roller bearing | Tapered roller bearings | Tapered roller bearings |
| Series | — | 30321 | — |
| Bore diameterd | 105 mm | 105 mm | 105 mm |
| Outside diameterD | 225 mm | 225 mm | 225 mm |
| WidthB | — | 53.5 mm | 49 mm |
| Basic dynamic load ratingC | 462 kN | 560 kN | 464 kN |
| Basic static load ratingC0 | 530 kN | 560 kN | 432 kN |
| Fatigue load limitPu | 57 kN | 78 kN | 56 kN |
| Reference speednref | 2200 r/min | 2550 r/min | — |
| Limiting speednG | 3000 r/min | 3950 r/min | 1700 r/min |
| Mass≈m | 9.09 kg | 9.36 kg | 8.74 kg |
| Precision class | — | PN — Normal (ISO 492:2023) | — |
| Sealing | Without | — | — |
| Cage | Sheet metal | Standard — Sheet steel cage, window cage, roller-guided | — |
| Lubricant | None | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — |
| Maximum operating temperatureTmax | — | 200 °C | — |
| Additional information | |||
| Comparative designation to ISO 10317 and ISO 355 | — | T2GB105 | — |
| Calculation factors | |||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | — | 0.35 | — |
| Dynamic axial load factorY | — | 1.74 | — |
| Static axial load factorY0 | — | 0.96 | — |
| Capabilities & suitability | |||
| Radial load capacity | — | Yes | — |
| Axial load capacity in one direction | — | Yes | — |
| Suitable for grease lubrication | — | Yes | — |
| Suitable for oil lubrication | — | Yes | — |
| Unsealed design | — | Yes | — |
| Classification | |||
| Official Category Path | — | — | Tapered roller bearings - Single-row - Metric series |
| Official Classification 1 | — | — | Tapered roller bearings / Single-row / Metric series |
| Dimensions | |||
| Width, total | 53.5 mm | — | — |
| Width, inner ring | 49.0 mm | — | — |
| Width, outer ring | 41.0 mm | — | — |
| Contact angle | 13.0 ° | — | — |
| Minimum chamfer dimension of inner ring back facer1, 2 min | — | 4 mm | — |
| Minimum chamfer dimension of inner ring back facer1, 2 min | — | 0.157 in | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | — | 3 mm | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | — | 0.118 in | — |
| Distance between the apexes of the pressure conesa | — | 44 mm | — |
| Distance between the apexes of the pressure conesa | — | 1.732 in | — |
| Guidance rib diameter of inner ringd1 | — | 154.9 mm | — |
| Guidance rib diameter of inner ringd1 | — | 6.098 in | — |
| Engineering — Abutment dimensions | |||
| Diameter of shaft abutmentd a | max. 133 mm | — | — |
| Diameter of shaft abutmentd b | min. 121 mm | — | — |
| Diameter of housing abutmentD a | max. 212 mm | — | — |
| Diameter of housing abutmentD b | min. 206 mm | — | — |
| Minimum width of space required in housing on large side faceC a | min. 7 mm | — | — |
| Minimum width of space required in housing on small side faceC b | min. 12.5 mm | — | — |
| Radius of shaft filletr a | max. 4 mm | — | — |
| Radius of housing filletr b | max. 3 mm | — | — |
| Engineering — Calculation data | |||
| Limiting valuee | 0.35 | — | — |
| Calculation factorY | 1.7 | — | — |
| Calculation factorY 0 | 0.9 | — | — |
| Engineering — Dimensions | |||
| Bearing width, totalT | 53.5 mm | — | — |
| Shoulder diameter of inner ringd 1 | ≈ 155.3 mm | — | — |
| Width of inner ringB | 49 mm | — | — |
| Width of outer ringC | 41 mm | — | — |
| Chamfer dimension of inner ringr 1,2 | min. 4 mm | — | — |
| Chamfer dimension of outer ringr 3,4 | min. 3 mm | — | — |
| Distance side face to pressure pointa | 41.328 mm | — | — |
| Engineering — Engineering specifications | |||
| Dimension series | 2GB | — | — |
| Logistics | |||
| Product net weight | 9.09 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Main Dimensions & Performance Data | |||
| Width, inner ringB | — | 49 mm | — |
| Width, inner ringB | — | 1.929 in | — |
| Width, outer ringC | — | 41 mm | — |
| Width, outer ringC | — | 1.614 in | — |
| Width, totalT | — | 53.5 mm | — |
| Width, totalT | — | 2.106 in | — |
| Basic dynamic load rating, radialCr | — | 560,000 N | — |
| Basic dynamic load rating, radialCr | — | 125,899.281 lbf | — |
| Basic static load rating, radialC0r | — | 560,000 N | — |
| Basic static load rating, radialC0r | — | 125,899.281 lbf | — |
| Fatigue load limit, radialCur | — | 78,000 N | — |
| Fatigue load limit, radialCur | — | 17,535.971 lbf | — |
| Thermal speed ratingnϑr | — | 2,550 1/min | — |
| Manufacturer Identity | |||
| Schaeffler Product Code | — | 383472 | — |
| Official Class Key | — | — | 050-010-010 |
| Base Type | — | 30321 | — |
| Old Designation | — | ["30321"] | — |
| Gpsd Group | — | F04 | — |
| Product Line Id | — | 64 | — |
| X Life Marking | — | XL | — |
| SAP material number | — | 0789787690000 | — |
| Base product | — | 2305091001 | — |
| Bearing X designation | — | 30321-XL | — |
| Mounting Manager ID | — | 30321-XL | — |
| Grease application ID | — | 30321-XL | — |
| Mounting dimensions | |||
| Maximum diameter of shaft shoulderda max | — | 132 mm | — |
| Maximum diameter of shaft shoulderda max | — | 5.197 in | — |
| Minimum diameter of shaft shoulderdb min | — | 119 mm | — |
| Minimum diameter of shaft shoulderdb min | — | 4.685 in | — |
| Minimum diameter of housing shoulderDa min | — | 193 mm | — |
| Minimum diameter of housing shoulderDa min | — | 7.598 in | — |
| Maximum diameter of housing shoulderDa max | — | 211 mm | — |
| Maximum diameter of housing shoulderDa max | — | 8.307 in | — |
| Minimum diameter of housing shoulderDb min | — | 206 mm | — |
| Minimum diameter of housing shoulderDb min | — | 8.11 in | — |
| Minimum axial spaceCa min | — | 7 mm | — |
| Minimum axial spaceCa min | — | 0.276 in | — |
| Minimum axial spaceCb min | — | 12.5 mm | — |
| Minimum axial spaceCb min | — | 0.492 in | — |
| Maximum fillet radius of shaftra max | — | 4 mm | — |
| Maximum fillet radius of shaftra max | — | 0.157 in | — |
| Maximum fillet radius of housingrb max | — | 3 mm | — |
| Maximum fillet radius of housingrb max | — | 0.118 in | — |
| Product characteristics | |||
| Tolerance classPN | — | Normal (ISO 492:2023) | — |
| Heat treatment | — | Standard | — |
| Internal design | — | Standard | — |
| Quality levelXL | — | X-life | — |
| Number of rows1 | — | Single-row design | — |
| Product identity | |||
| Official product category | Tapered roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/single-row-tapered-roller-bearings | — | — |
| Structure group ID | BT1_001_101 | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Construction | — | Tapered roller bearings 303, main dimensions acc. to DIN 720, separable | — |
| Short Description | — | Tapered roller bearing | — |
| Properties | |||
| Bearing part | Complete bearing | — | — |
| Number of rows | 1 | — | — |
| Locating feature, bearing outer ring | Without | — | — |
| Bore type | Cylindrical | — | — |
| Arrangement of contact angle (double-row bearing) | Not applicable | — | — |
| Matched arrangement | No | — | — |
| Coating | Without | — | — |
| Relubrication feature | Without | — | — |
| Unit system | Metric | — | — |
| Indicative carbon footprint for new product | 33.6 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 225 mm |
| T | — | — | 53.5 mm |
| B | — | — | 49 mm |
| C | — | — | 41 mm |
| Bore Diameter (D) | — | 105 mm | — |
| R(Min.) | — | — | 4 mm |
| Outside Diameter (D) | — | 225 mm | — |
| R1(Min.) | — | — | 3 mm |
| Width (B) | — | 53.5 mm | — |
| Basic Load Ratings : Cr | — | — | 464 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 560,000 N | — |
| Basic Load Ratings : C0R | — | — | 432 kN |
| Basic Static Load Rating, Radial (C0R) | — | 560,000 N | — |
| Fatigue Load Limit : Cu | — | — | 56.0 kN |
| Operating Temperature Min. (Tmin) | — | -30 °C | — |
| Limiting Speeds(Grease Lub.) | — | — | 1700 min-1 |
| Limiting Speed (Ng) | — | 3,950 1/min | — |
| Limiting Speeds(Oil Lub.) | — | — | 2300 min-1 |
| Operating Temperature Max. (Tmax) | — | 200 °C | — |
| Load Center Spread : A | — | — | 43.1 mm |
| Reference Speed (Nϑr) | — | 2,550 1/min | — |
| Constant E | — | — | 0.35 |
| Maximum Fillet Radius Of Housing (Rb Max) | — | 3 mm | — |
| Axial Load Factors : Y1 | — | — | 1.73 |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | — | 3 mm | — |
| Axial Load Factors : Y0 | — | — | 0.95 |
| Minimum Diameter Of Housing Shoulder (Da Min) | — | 193 mm | — |
| Da(Min.) | — | — | 193 mm |
| Minimum Diameter Of Housing Shoulder (Db Min) | — | 206 mm | — |
| Db(Max.) | — | — | 132 mm |
| Width, Outer Ring (C) | — | 41 mm | — |
| Da(Max.) | — | — | 211 mm |
| Fatigue Load Limit, Radial (Cur) | — | 78,000 N | — |
| Db(Min.) | — | — | 209 mm |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | — | 0.35 | — |
| Sa(Min.) | — | — | 7 mm |
| Maximum Diameter Of Shaft Shoulder (Da Max) | — | 132 mm | — |
| Sb(Min.) | — | — | 12.5 mm |
| Minimum Diameter Of Shaft Shoulder (Db Min) | — | 119 mm | — |
| Ra(Max.) | — | — | 3 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 211 mm | — |
| Rb(Max.) | — | — | 2.5 mm |
| Dynamic Axial Load Factor (Y) | — | 1.74 | — |
| Mass(Refer.) | — | — | 8.74 kg |
| Maximum Fillet Radius (Ra Max) | — | 4 mm | — |
| Minimum Axial Space (Cb Min) | — | 12.5 mm | — |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | — | 4 mm | — |
| Guidance Rib Diameter Of Inner Ring (D1) | — | 154.9 mm | — |
| Minimum Axial Space (Ca Min) | — | 7 mm | — |
| Width, Inner Ring (B) | — | 49 mm | — |
| Static Axial Load Factor (Y0) | — | 0.96 | — |
| Distance Between The Apexes Of The Pressure Cones (A) | — | 44 mm | — |
| Temperature range | |||
| Operating temperature min.Tmin | — | -30 °C | — |
| Operating temperature min.Tmin | — | -22 °F | — |
| Operating temperature max.Tmax | — | 200 °C | — |
| Operating temperature max.Tmax | — | 392 °F | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.