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.
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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
“31330” 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 | SKF31330 X/DF150 × 320 × 164 mm | FAG31330-X-XL-DF-A0-45150 × 320 × 164 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | FAG |
| Designation | 31330 X/DF | 31330-X-XL-DF-A0-45 |
| Product family | Tapered roller bearings | — |
| Detailed type | Matched tapered roller bearings arranged face-to-face | Tapered roller bearing set |
| Series | — | 31330 |
| Bore diameterd | 150 mm | 150 mm |
| Outside diameterD | 320 mm | 320 mm |
| WidthB | 164 mm | 164 mm |
| Basic dynamic load ratingC | 1427 kN | 1680 kN |
| Basic static load ratingC0 | 2040 kN | 2090 kN |
| Fatigue load limitPu | 200 kN | 260 kN |
| Reference speednref | 1100 r/min | 1280 r/min |
| Limiting speednG | 2000 r/min | 2550 r/min |
| Mass≈m | 59.4 kg | 59.4 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 |
| Calculation factors | ||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | — | 0.83 |
| Dynamic axial load factorY1 | — | 0.82 |
| Dynamic axial load factorY2 | — | 1.22 |
| Static axial load factorY0 | — | 0.8 |
| Capabilities & suitability | ||
| Radial load capacity | — | Yes |
| 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 |
| Largebearing | — | Yes |
| Dimensions | ||
| Width, total | 164.0 mm | — |
| Width, inner ring | 150.0 mm | — |
| Width, outer ring | 164.0 mm | — |
| Contact angle | 28.8 ° | — |
| 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 |
| Width of spacerA | — | 64 mm |
| Width of spacerA | — | 2.52 in |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | max. 181 mm | — |
| Diameter of housing abutmentD a | max. 304 mm | — |
| Minimum width of space required in housing on large side faceC a | min. 9 mm | — |
| Radius of filletr a | max. 5 mm | — |
| Radius of filletr c | max. 1.5 mm | — |
| Engineering — Calculation data | ||
| Limiting valuee | 0.83 | — |
| Calculation factorY 1 | 0.81 | — |
| Calculation factorY 2 | 1.2 | — |
| Calculation factorY 0 | 0.8 | — |
| Engineering — Dimensions | ||
| Total widthT | 164 mm | — |
| Width of inner rings2B | 150 mm | — |
| Width of lubrication grooveb | 20 mm | — |
| Diameter of lubrication holeK | 15 mm | — |
| Chamfer dimensionr 3,4 | min. 4 mm | — |
| Chamfer dimensionr 5 | min. 1.5 mm | — |
| Logistics | ||
| Product net weight | 59.4 kg | — |
| eClass code | 23-05-09-10 | — |
| Main Dimensions & Performance Data | ||
| Inner ring total width2B | — | 150 mm |
| Inner ring total width2B | — | 5.906 in |
| Outer ring total width2T | — | 164 mm |
| Outer ring total width2T | — | 6.457 in |
| Basic dynamic load rating, radialCr | — | 1,680,000 N |
| Basic dynamic load rating, radialCr | — | 377,697.842 lbf |
| Basic static load rating, radialC0r | — | 2,090,000 N |
| Basic static load rating, radialC0r | — | 469,874.101 lbf |
| Fatigue load limit, radialCur | — | 260,000 N |
| Fatigue load limit, radialCur | — | 58,453.237 lbf |
| Thermal speed ratingnϑr | — | 1,280 1/min |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 2271902 |
| Base Type | — | 31330 |
| Product Line Id | — | 70 |
| X Life Marking | — | XL |
| Base product | — | 2305091051 |
| Mounting dimensions | ||
| Maximum diameter of shaft shoulderda max | — | 181 mm |
| Maximum diameter of shaft shoulderda max | — | 7.126 in |
| Minimum diameter of housing shoulderDa min | — | 251 mm |
| Minimum diameter of housing shoulderDa min | — | 9.882 in |
| Maximum diameter of housing shoulderDa max | — | 302 mm |
| Maximum diameter of housing shoulderDa max | — | 11.89 in |
| Minimum axial spaceCa min | — | 9 mm |
| Minimum axial spaceCa min | — | 0.354 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 |
| Axial internal clearanceA0-45 | — | Axial internal clearance between 0 and 45 µm |
| Quality levelXL | — | X-life |
| Matched arrangementF | — | X arrangement |
| Number of rows2 | — | Double-row design |
| Product identity | ||
| Official product category | Tapered roller bearings | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/matched-tapered-roller-bearings | — |
| Structure group ID | BT2_010 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Product Identity | ||
| Construction | — | Tapered roller bearing set 313..-DF, X-arrangement |
| Short Description | — | Tapered roller bearing set |
| Properties | ||
| Bearing part | Complete bearing | — |
| Number of rows | 2 | — |
| Locating feature, bearing outer ring | Without | — |
| Bore type | Cylindrical | — |
| Matched arrangement | Face-to-face (X) | — |
| Number of bearings in matched set | 2 | — |
| Coating | Without | — |
| Relubrication feature | With | — |
| Indicative carbon footprint for new product | 220.0 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 150 mm |
| Outside Diameter (D) | — | 320 mm |
| Width Of Bearing Outside (2T) | — | 164 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 1,680,000 N |
| Basic Static Load Rating, Radial (C0R) | — | 2,090,000 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Limiting Speed (Ng) | — | 2,550 1/min |
| Operating Temperature Max. (Tmax) | — | 200 °C |
| Reference Speed (Nϑr) | — | 1,280 1/min |
| Maximum Fillet Radius Of Housing (Rb Max) | — | 4 mm |
| Minimum Chamfer Dimension Of Outer Ring Back Face (R3, 4 M) | — | 4 mm |
| Minimum Diameter Of Housing Shoulder (Da Min) | — | 251 mm |
| Fatigue Load Limit, Radial (Cur) | — | 260,000 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) | — | 181 mm |
| Dynamic Axial Load Factor (Y1) | — | 0.82 |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 302 mm |
| Width Of Spacer (A) | — | 64 mm |
| Dynamic Axial Load Factor (Y2) | — | 1.22 |
| Width Of Bearing Inside (B4) | — | 150 mm |
| Minimum Axial Space (Ca Min) | — | 9 mm |
| Static Axial Load Factor (Y0) | — | 0.8 |
| 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.