Cross-brand designation analysis
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You entered C-31-1000-KMB. This table explores the base group C31; it does not preserve or approve every requested suffix. Search your complete marking first →
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“C31” across 2 loaded brands
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Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKFC 31/600 MB600 × 980 × 300 mm | FAGC31/600-XL-K-M1B-C4600 × 980 × 300 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | FAG |
| Designation | C 31/600 MB | C31/600-XL-K-M1B-C4 |
| Product family | CARB toroidal roller bearings | — |
| Detailed type | Carb toroidal roller bearing | Toroidal roller bearing |
| Series | — | C31/600 |
| Bore diameterd | 600 mm | 600 mm |
| Outside diameterD | 980 mm | 980 mm |
| WidthB | 300 mm | 300 mm |
| Basic dynamic load ratingC | 10200 kN | 11100 kN |
| Basic static load ratingC0 | 18000 kN | 19100 kN |
| Fatigue load limitPu | 1140 kN | 1490 kN |
| Reference speednref | 430 r/min | 247 r/min |
| Limiting speednG | 600 r/min | 550 r/min |
| Mass≈m | 910 kg | 923.9 kg |
| Internal clearance | CN | — |
| Sealing | Without | — |
| Cage | Machined brass | M1B — solid brass cage, inner ring guided |
| Lubricant | None | — |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 200 °C |
| Calculation factors | ||
| Operating clearance factor kδkδ | — | 0.362 |
| Tilting factor kφkφ | — | 30.953 |
| Capabilities & suitability | ||
| Radial load capacity | — | Yes |
| Suitable for grease lubrication | — | Yes |
| Suitable for oil lubrication | — | Yes |
| Unsealed design | — | Yes |
| Staticangularerrorandmisalignment | — | Yes |
| Dynamicangularerrorandmisalignment | — | Yes |
| Dimensions | ||
| Minimum chamfer dimensionrmin | — | 7.5 mm |
| Minimum chamfer dimensionrmin | — | 0.295 in |
| Shoulder diameter of IRd2 | — | 702.9 mm |
| Shoulder diameter of IRd2 | — | 27.673 in |
| Shoulder diameter outer ringD1 | — | 869.9 mm |
| Shoulder diameter outer ringD1 | — | 34.248 in |
| Axial displacementS1 | — | 26.1 mm |
| Axial displacementS1 | — | 1.028 in |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | max. 704 mm | — |
| Diameter of housing abutmentD a | min. 827 mm | — |
| Abutment diameter housingD a | max. 948 mm | — |
| Minimum width of space required in housingC a | min. 5.1 mm | — |
| Radius of filletr a | max. 6 mm | — |
| Engineering — Calculation data | ||
| SKF performance class | SKF Explorer | — |
| Misalignment factork 1 | 0 | — |
| Internal clearance factork 2 | 0.11 | — |
| Engineering — Dimensions | ||
| Shoulder diameter of inner ringd 2 | ≈ 705 mm | — |
| Shoulder or recess diameter of outer ringD 1 | ≈ 871 mm | — |
| Permissible axial displacements 1 | max. 26.1 mm | — |
| Chamfer dimensionr 1,2 | min. 7.5 mm | — |
| Engineering — Engineering specifications | ||
| Bore type | Cylindrical | — |
| Logistics | ||
| Product net weight | 910.0 kg | — |
| eClass code | 23-05-09-13 | — |
| UNSPSC code | 31171505 | — |
| Main Dimensions & Performance Data | ||
| Basic dynamic load rating, radialCr | — | 11,100,000 N |
| Basic dynamic load rating, radialCr | — | 2,495,503.597 lbf |
| Basic static load rating, radialC0r | — | 19,100,000 N |
| Basic static load rating, radialC0r | — | 4,294,064.748 lbf |
| Fatigue load limit, radialCur | — | 1,490,000 N |
| Fatigue load limit, radialCur | — | 334,982.014 lbf |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 2251619 |
| Base Type | — | C31/600 |
| Gpsd Group | — | F02 |
| Product Line Id | — | 37 |
| X Life Marking | — | XL |
| SAP material number | — | 0898487480040 |
| Base product | — | 2305091390 |
| Mounting dimensions | ||
| Minimum diameter shaft shoulderda min | — | 632 mm |
| Minimum diameter shaft shoulderda min | — | 24.882 in |
| Maximum diameter shaft shoulderda max | — | 700 mm |
| Maximum diameter shaft shoulderda max | — | 27.559 in |
| Minimum diameter of housing shoulderDa min | — | 837 mm |
| Minimum diameter of housing shoulderDa min | — | 32.953 in |
| Maximum diameter of housing shoulderDa max | — | 948 mm |
| Maximum diameter of housing shoulderDa max | — | 37.323 in |
| Maximum fillet radiusra max | — | 6 mm |
| Maximum fillet radiusra max | — | 0.236 in |
| Minimum depth of free space CaCa | — | 8.77 mm |
| Minimum depth of free space CaCa | — | 0.345 in |
| Product characteristics | ||
| Bore typeK | — | Tapered, taper 1:12 |
| Product identity | ||
| Official product category | CARB toroidal roller bearings | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/carb-toroidal-roller-bearings | — |
| Structure group ID | BSC_001 | — |
| Available from SKF | Yes | — |
| Remanufacturable | Yes | — |
| Product Identity | ||
| Construction | — | Toroidal roller bearing C31..-XL-K-M1B |
| Short Description | — | Toroidal roller bearing |
| Properties | ||
| Number of rows | 1 | — |
| Locating feature, bearing outer ring | Without | — |
| Radial internal clearance | CN | — |
| Tolerance class | Normal | — |
| Relubrication feature | Without | — |
| Candidate for remanufacturing | Yes | — |
| Indicative carbon footprint for new product | 3367.0 kg CO 2 e | — |
| Indicative carbon footprint for remanufactured product | 1119.0 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 600 mm |
| Outside Diameter (D) | — | 980 mm |
| Width (B) | — | 300 mm |
| Basic Dynamic Load Rating, Radial (Cr) | — | 11,100,000 N |
| Basic Static Load Rating, Radial (C0R) | — | 19,100,000 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Limiting Speed (Ng) | — | 550 1/min |
| Operating Temperature Max. (Tmax) | — | 200 °C |
| Reference Speed (Nϑr) | — | 247 1/min |
| Minimum Diameter Of Housing Shoulder (Da Min) | — | 837 mm |
| Axial Displacement (S1) | — | 26.1 mm |
| Minimum Depth Of Free Space Ca (Ca) | — | 8.77 mm |
| Operating Clearance Factor Kδ (Kδ) | — | 0.362 |
| Shoulder Diameter Of Ir (D2) | — | 702.9 mm |
| Tilting Factor Kφ (Kφ) | — | 30.953 |
| Fatigue Load Limit, Radial (Cur) | — | 1,490,000 N |
| Maximum Diameter Of Shaft Shoulder (Da Max) | — | 700 mm |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 632 mm |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 948 mm |
| Minimum Chamfer Dimension (Rmin) | — | 7.5 mm |
| Maximum Fillet Radius (Ra Max) | — | 6 mm |
| Shoulder Diameter Outer Ring (D1) | — | 869.9 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.