Cross-brand designation analysis
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You entered 30318R. This table explores the base group 30318; it does not preserve or approve every requested suffix. Search your complete marking first →
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One base designation across loaded brands
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Dimensions verified
“30318” across 2 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 | FAG30318-A90 × 190 × 46.5 mm | TIMKEN3031890 × 190 × 46.5 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | TIMKEN |
| Designation | 30318-A | 30318 |
| Product family | — | TS - Tapered Single |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 30318 | 30318 |
| Bore diameterd | 90 mm | 90 mm |
| Outside diameterD | 190 mm | 190 mm |
| WidthB | 46.5 mm | 46.5 mm |
| Basic dynamic load ratingC | 330 kN | 406 kN |
| Basic static load ratingC0 | 395 kN | 429 kN |
| Fatigue load limitPu | 44.5 kN | — |
| Reference speednref | 3050 r/min | — |
| Limiting speednG | 3850 r/min | — |
| Mass≈m | 5.8 kg | 5.66 kg |
| Precision class | PN — Normal (ISO 492:2023) | ABMA Class K |
| Sealing | — | Open |
| Cage | Standard — Sheet steel cage, window cage, roller-guided | Steel cage |
| Minimum operating temperatureTmin | -30 °C | — |
| Maximum operating temperatureTmax | 120 °C | — |
| Additional information | ||
| Comparative designation to ISO 10317 and ISO 355 | T2GB090 | — |
| Calculation Factors | ||
| K Factor | — | 1.69 |
| Y1 Factor | — | 1.74 |
| Y2 Factor | — | 0.00 |
| Y0 Factor | — | 0.96 |
| E Factor | — | 0.35 |
| Cg Factor | — | 0.0882 |
| 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 | — |
| Dimensions | ||
| 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 | 37 mm | — |
| Distance between the apexes of the pressure conesa | 1.457 in | — |
| Guidance rib diameter of inner ringd1 | 135 mm | — |
| Guidance rib diameter of inner ringd1 | 5.315 in | — |
| Main Dimensions & Performance Data | ||
| Width, inner ringB | 43 mm | — |
| Width, inner ringB | 1.693 in | — |
| Width, outer ringC | 36 mm | — |
| Width, outer ringC | 1.417 in | — |
| Width, totalT | 46.5 mm | — |
| Width, totalT | 1.831 in | — |
| Basic dynamic load rating, radialCr | 330,000 N | — |
| Basic dynamic load rating, radialCr | 74,190.647 lbf | — |
| Basic static load rating, radialC0r | 395,000 N | — |
| Basic static load rating, radialC0r | 88,803.957 lbf | — |
| Fatigue load limit, radialCur | 44,500 N | — |
| Fatigue load limit, radialCur | 10,004.496 lbf | — |
| Thermal speed ratingnϑr | 3,050 1/min | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 383454 | — |
| Material Number | — | 000000000190032725 |
| Base Type | 30318 | — |
| World Assembly Part Number | — | X30318M_Y30318M |
| Old Designation | ["30318A"] | — |
| Inner Ring Part Number | — | X30318M |
| Gpsd Group | F04 | — |
| Outer Ring Part Number | — | Y30318M |
| Product Line Id | 64 | — |
| Drawing Number | — | C-89328 |
| X Life Marking | n.r. | — |
| Upc | — | 0053893076508 |
| Official Source System | — | CORE BP - DS DF |
| Official Last Run | — | 2026-08-23T20:02:47.683 |
| SAP material number | 0167110170000 | — |
| Base product | 2305091001 | — |
| Bearing X designation | 30318-A | — |
| Mounting Manager ID | 30318-A | — |
| Grease application ID | 30318-A | — |
| Mounting dimensions | ||
| Maximum diameter of shaft shoulderda max | 113 mm | — |
| Maximum diameter of shaft shoulderda max | 4.449 in | — |
| Minimum diameter of shaft shoulderdb min | 104 mm | — |
| Minimum diameter of shaft shoulderdb min | 4.094 in | — |
| Minimum diameter of housing shoulderDa min | 165 mm | — |
| Minimum diameter of housing shoulderDa min | 6.496 in | — |
| Maximum diameter of housing shoulderDa max | 176 mm | — |
| Maximum diameter of housing shoulderDa max | 6.929 in | — |
| Minimum diameter of housing shoulderDb min | 176 mm | — |
| Minimum diameter of housing shoulderDb min | 6.929 in | — |
| Minimum axial spaceCa min | 6 mm | — |
| Minimum axial spaceCa min | 0.236 in | — |
| Minimum axial spaceCb min | 10.5 mm | — |
| Minimum axial spaceCb min | 0.413 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 level | Standard | — |
| Number of rows1 | Single-row design | — |
| Product Identity | ||
| Construction | Tapered roller bearings 303, main dimensions acc. to DIN 720, separable | Single Row Tapered Roller Bearing Assembly | Imperial Series | 3.5433 in Bore | 7.4803 in OD | 1.8307 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class K |
| Type Description | — | TS - Tapered Single |
| Short Description | Tapered roller bearing | — |
| Number Of Rows | — | 1 |
| Tapered Bore | — | N |
| Technical Data | ||
| Bore Diameter (D) | 90 mm | — |
| Overall Width | — | 53.200 mm |
| Outside Diameter (D) | 190 mm | — |
| Radial Rating | — | 105,000 N |
| Width (B) | 46.5 mm | — |
| Axial Rating | — | 62,200 N |
| Basic Dynamic Load Rating, Radial (Cr) | 330,000 N | — |
| Dynamic Rating C1 | — | 406,000 N |
| Basic Static Load Rating, Radial (C0R) | 395,000 N | — |
| Dynamic Rating C90 | — | 105,000 N |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Dynamic Axial Rating Ca90 | — | 62,200 N |
| Limiting Speed (Ng) | 3,850 1/min | — |
| Dynamic Axial Rating Ca1 | — | 240,000 N |
| Operating Temperature Max. (Tmax) | 120 °C | — |
| Static Radial Rating C0 | — | 429,000 N |
| Reference Speed (Nϑr) | 3,050 1/min | — |
| Extended Dynamic Rating Ce | — | 0 N |
| Maximum Fillet Radius Of Housing (Rb Max) | 3 mm | — |
| Static Axial Rating C0A | — | 431,000 N |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 3 mm | — |
| Minimum Diameter Of Housing Shoulder (Da Min) | 165 mm | — |
| Minimum Diameter Of Housing Shoulder (Db Min) | 176 mm | — |
| Width, Outer Ring (C) | 36 mm | — |
| Fatigue Load Limit, Radial (Cur) | 44,500 N | — |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.35 | — |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 113 mm | — |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 104 mm | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | 176 mm | — |
| Dynamic Axial Load Factor (Y) | 1.74 | — |
| Maximum Fillet Radius (Ra Max) | 4 mm | — |
| Minimum Axial Space (Cb Min) | 10.5 mm | — |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 4 mm | — |
| Guidance Rib Diameter Of Inner Ring (D1) | 135 mm | — |
| Minimum Axial Space (Ca Min) | 6 mm | — |
| Width, Inner Ring (B) | 43 mm | — |
| Static Axial Load Factor (Y0) | 0.96 | — |
| Distance Between The Apexes Of The Pressure Cones (A) | 37 mm | — |
| 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 | — |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.