Cross-brand designation analysis
COMPARE / VERIFY
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
“31328” 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 | FAG31328-X140 × 300 × 77 mm | TIMKEN31328X140 × 300 × 77 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | FAG | TIMKEN |
| Designation | 31328-X | 31328X |
| Product family | — | TS - Tapered Single |
| Detailed type | Tapered roller bearings | Tapered roller bearings |
| Series | 31328 | 31328X |
| Bore diameterd | 140 mm | 140 mm |
| Outside diameterD | 300 mm | 300 mm |
| WidthB | 77 mm | 77 mm |
| Basic dynamic load ratingC | 700 kN | 900 kN |
| Basic static load ratingC0 | 910 kN | 1020 kN |
| Fatigue load limitPu | 105 kN | — |
| Reference speednref | 1690 r/min | — |
| Limiting speednG | 2250 r/min | — |
| Mass≈m | 21.9 kg | 22.85 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 | 200 °C | — |
| Additional information | ||
| Comparative designation to ISO 10317 and ISO 355 | T7GB140 | — |
| Calculation Factors | ||
| K Factor | — | 0.71 |
| Y1 Factor | — | 0.73 |
| Y2 Factor | — | 0.00 |
| Y0 Factor | — | 0.40 |
| E Factor | — | 0.83 |
| Cg Factor | — | 0.1292 |
| Calculation factors | ||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | 0.83 | — |
| Dynamic axial load factorY | 0.73 | — |
| Static axial load factorY0 | 0.4 | — |
| 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 | 5 mm | — |
| Minimum chamfer dimension of inner ring back facer1, 2 min | 0.197 in | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 4 mm | — |
| Minimum chamfer dimension of outer ring back facer3, 4 min | 0.157 in | — |
| Distance between the apexes of the pressure conesa | 94 mm | — |
| Distance between the apexes of the pressure conesa | 3.701 in | — |
| Guidance rib diameter of inner ringd1 | 223 mm | — |
| Guidance rib diameter of inner ringd1 | 8.78 in | — |
| Main Dimensions & Performance Data | ||
| Width, inner ringB | 70 mm | — |
| Width, inner ringB | 2.756 in | — |
| Width, outer ringC | 47 mm | — |
| Width, outer ringC | 1.85 in | — |
| Width, totalT | 77 mm | — |
| Width, totalT | 3.031 in | — |
| Basic dynamic load rating, radialCr | 700,000 N | — |
| Basic dynamic load rating, radialCr | 157,374.101 lbf | — |
| Basic static load rating, radialC0r | 910,000 N | — |
| Basic static load rating, radialC0r | 204,586.331 lbf | — |
| Fatigue load limit, radialCur | 105,000 N | — |
| Fatigue load limit, radialCur | 23,606.115 lbf | — |
| Thermal speed ratingnϑr | 1,690 1/min | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | 384148 | — |
| Material Number | — | 000000000190040487 |
| Base Type | 31328 | — |
| World Assembly Part Number | — | X31328X_Y31328X |
| Gpsd Group | F04 | — |
| Inner Ring Part Number | — | X31328X |
| Product Line Id | 64 | — |
| Outer Ring Part Number | — | Y31328X |
| X Life Marking | n.r. | — |
| Drawing Number | — | B-190518 |
| Upc | — | 0053893809205 |
| Official Source System | — | CORE BP - DS DF |
| Official Last Run | — | 2026-08-23T20:02:47.283 |
| SAP material number | 0167114240000 | — |
| Base product | 2305091001 | — |
| Bearing X designation | 31328-X | — |
| Mounting Manager ID | 31328-X | — |
| Grease application ID | 31328-X | — |
| Mounting dimensions | ||
| Maximum diameter of shaft shoulderda max | 169 mm | — |
| Maximum diameter of shaft shoulderda max | 6.654 in | — |
| Minimum diameter of shaft shoulderdb min | 158 mm | — |
| Minimum diameter of shaft shoulderdb min | 6.22 in | — |
| Minimum diameter of housing shoulderDa min | 235 mm | — |
| Minimum diameter of housing shoulderDa min | 9.252 in | — |
| Maximum diameter of housing shoulderDa max | 282 mm | — |
| Maximum diameter of housing shoulderDa max | 11.102 in | — |
| Minimum diameter of housing shoulderDb min | 280 mm | — |
| Minimum diameter of housing shoulderDb min | 11.024 in | — |
| Minimum axial spaceCa min | 9 mm | — |
| Minimum axial spaceCa min | 0.354 in | — |
| Minimum axial spaceCb min | 30 mm | — |
| Minimum axial spaceCb min | 1.181 in | — |
| Maximum fillet radius of shaftra max | 5 mm | — |
| Maximum fillet radius of shaftra max | 0.197 in | — |
| Maximum fillet radius of housingrb max | 4 mm | — |
| Maximum fillet radius of housingrb max | 0.157 in | — |
| Product characteristics | ||
| Tolerance classPN | Normal (ISO 492:2023) | — |
| Heat treatment | Standard | — |
| Quality level | Standard | — |
| Number of rows1 | Single-row design | — |
| Product Identity | ||
| Construction | Tapered roller bearings 313, main dimensions acc. to DIN 720, separable | Single Row Tapered Roller Bearing Assembly | Imperial Series | 5.5118 in Bore | 11.8110 in OD | 3.0315 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class K |
| Short Description | Tapered roller bearing | — |
| Type Description | — | TS - Tapered Single |
| Number Of Rows | — | 1 |
| Tapered Bore | — | N |
| Technical Data | ||
| Bore Diameter (D) | 140 mm | — |
| Outside Diameter (D) | 300 mm | — |
| Overall Width | — | 96.200 mm |
| Width (B) | 77 mm | — |
| Radial Rating | — | 233,000 N |
| Basic Dynamic Load Rating, Radial (Cr) | 700,000 N | — |
| Axial Rating | — | 330,000 N |
| Basic Static Load Rating, Radial (C0R) | 910,000 N | — |
| Dynamic Rating C1 | — | 900,000 N |
| Operating Temperature Min. (Tmin) | -30 °C | — |
| Dynamic Rating C90 | — | 233,000 N |
| Limiting Speed (Ng) | 2,250 1/min | — |
| Dynamic Axial Rating Ca90 | — | 330,000 N |
| Operating Temperature Max. (Tmax) | 200 °C | — |
| Dynamic Axial Rating Ca1 | — | 1,270,000 N |
| Reference Speed (Nϑr) | 1,690 1/min | — |
| Static Radial Rating C0 | — | 1,020,000 N |
| Maximum Fillet Radius Of Housing (Rb Max) | 4 mm | — |
| Extended Dynamic Rating Ce | — | 0 N |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | 4 mm | — |
| Static Axial Rating C0A | — | 2,460,000 N |
| Minimum Diameter Of Housing Shoulder (Da Min) | 235 mm | — |
| Minimum Diameter Of Housing Shoulder (Db Min) | 280 mm | — |
| Width, Outer Ring (C) | 47 mm | — |
| Fatigue Load Limit, Radial (Cur) | 105,000 N | — |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | 0.83 | — |
| Maximum Diameter Of Shaft Shoulder (Da Max) | 169 mm | — |
| Minimum Diameter Of Shaft Shoulder (Db Min) | 158 mm | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | 282 mm | — |
| Dynamic Axial Load Factor (Y) | 0.73 | — |
| Maximum Fillet Radius (Ra Max) | 5 mm | — |
| Minimum Axial Space (Cb Min) | 30 mm | — |
| Minimum Chamfer Dimension Of Inner Ring Back Face (R1, 2 M) | 5 mm | — |
| Guidance Rib Diameter Of Inner Ring (D1) | 223 mm | — |
| Minimum Axial Space (Ca Min) | 9 mm | — |
| Width, Inner Ring (B) | 70 mm | — |
| Static Axial Load Factor (Y0) | 0.4 | — |
| Distance Between The Apexes Of The Pressure Cones (A) | 94 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.