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| Parameter | SKF6056 M280 × 420 × 65 mm | FAG6056-M280 × 420 × 65 mm | KOYO6056280 × 420 × 65 mm | NTN6056280 × 420 × 65 mm |
|---|---|---|---|---|
| Comparable specifications | ||||
| Brand | SKF | FAG | KOYO | NTN |
| Designation | 6056 M | 6056-M | 6056 | 6056 |
| Product family | Deep groove ball bearings | — | Single-row / Open type | Single row deep groove ball bearings |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Series | — | 6056 | — | — |
| Bore diameterd | 280 mm | 280 mm | 280 mm | 280 mm |
| Outside diameterD | 420 mm | 420 mm | 420 mm | 420 mm |
| WidthB | 65 mm | 65 mm | 65 mm | 65 mm |
| Basic dynamic load ratingC | 302 kN | 320 kN | 377 kN | 360 kN |
| Basic static load ratingC0 | 405 kN | 435 kN | 408 kN | 420 kN |
| Fatigue load limitPu | 9.3 kN | 14.8 kN | 15.5 kN | 16.9 kN |
| Reference speednref | 3000 r/min | 2070 r/min | — | — |
| Limiting speednG | 2600 r/min | 2600 r/min | 1300 r/min | — |
| Mass≈m | 31 kg | 31.7 kg | 31 kg | 31 kg |
| Precision class | Normal | PN — Normal (ISO 492:2023) | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | CN |
| Sealing | Without | Without — Not sealed | Open | open |
| Cage | Machined brass | M — Solid brass cage, rolling element guided | — | machined cage |
| Bearing material | Bearing steel | — | — | — |
| Lubricant | None | Without — Bearing not greased | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | -40 °C |
| Maximum operating temperatureTmax | — | 200 °C | — | 120 °C |
| Calculation factors | ||||
| Calculation factorf0 | — | 15.8 | — | — |
| 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 | — | — |
| Classification | ||||
| Official Category Path | — | — | Deep groove ball bearings - Single-row - Open type | — |
| Official Classification 1 | — | — | Deep groove ball bearings / Single-row / Open type | — |
| Dimensions | ||||
| Minimum chamfer dimensionrmin | — | 4 mm | — | — |
| Minimum chamfer dimensionrmin | — | 0.157 in | — | — |
| Shoulder diameter outer ringD1 | — | 377.45 mm | — | — |
| Shoulder diameter outer ringD1 | — | 14.86 in | — | — |
| Shoulder diameter inner ringd1 | — | 324.05 mm | — | — |
| Shoulder diameter inner ringd1 | — | 12.758 in | — | — |
| Dimensions and properties | ||||
| Internal diameterd | — | — | — | 280 mm |
| External diameterD | — | — | — | 420 mm |
| Bearing/Inner ring widthB | — | — | — | 65 mm |
| Min fillet radiusrs | — | — | — | 4 mm |
| Radial clearance class | — | — | — | CN |
| Engineering — Abutment dimensions | ||||
| Diameter of shaft abutmentd a | min. 296 mm | — | — | — |
| Diameter of housing abutmentD a | max. 404 mm | — | — | — |
| Radius of shaft or housing filletr a | max. 3 mm | — | — | — |
| Engineering — Calculation data | ||||
| Minimum load factork r | 0.03 | — | — | — |
| Calculation factorf 0 | 16 | — | — | — |
| Engineering — Dimensions | ||||
| Deviation limits of mid-range bore diametert Δdmp | -0.035 to 0 mm | — | — | — |
| Deviation limits of mid-range outside diametert ΔDmp | -0.045 to 0 mm | — | — | — |
| Deviation limits of ring widtht ΔBs | -0.35 to 0 mm | — | — | — |
| Shoulder diameterd 1 | ≈ 375.05 mm | — | — | — |
| Chamfer dimensionr 1,2 | min. 4 mm | — | — | — |
| ISO tolerance class for dimensions | Normal | — | — | — |
| Engineering — Tolerances of run-out | ||||
| Range of section height at inner ring of assembled bearingt Kia | 50 µm | — | — | — |
| Range of section height at outer ring of assembled bearingt Kea | 80 µm | — | — | — |
| ISO tolerance class for geometrical tolerances | Normal | — | — | — |
| Logistics | ||||
| Product net weight | 31.0 kg | — | — | — |
| eClass code | 23-05-08-01 | — | — | — |
| UNSPSC code | 31171504 | — | — | — |
| Main Dimensions & Performance Data | ||||
| Basic dynamic load rating, radialCr | — | 320,000 N | — | — |
| Basic dynamic load rating, radialCr | — | 71,942.446 lbf | — | — |
| Basic static load rating, radialC0r | — | 435,000 N | — | — |
| Basic static load rating, radialC0r | — | 97,796.763 lbf | — | — |
| Fatigue load limit, radialCur | — | 14,800 N | — | — |
| Fatigue load limit, radialCur | — | 3,327.338 lbf | — | — |
| Manufacturer Identity | ||||
| Schaeffler Product Code | — | 349849 | — | — |
| Official Class Key | — | — | 010-010-010 | — |
| Base Type | — | 6056 | — | — |
| Old Designation | — | ["6056M"] | — | — |
| Gpsd Group | — | S02 | — | — |
| Product Line Id | — | 14 | — | — |
| X Life Marking | — | n.r. | — | — |
| SAP material number | — | 0167188010000 | — | — |
| Base product | — | 2305080101 | — | — |
| Bearing X designation | — | 6056-M | — | — |
| Mounting Manager ID | — | 6056-M | — | — |
| Grease application ID | — | 6056-M | — | — |
| Mounting dimensions | ||||
| Min shoulder diameter IRda min | — | — | — | 296 mm |
| Max shoulder diameter ORDa max | — | — | — | 404 mm |
| Max shaft & housing fillet radiusra max | — | — | — | 3 mm |
| Minimum diameter shaft shoulderda min | — | 294.6 mm | — | — |
| Minimum diameter shaft shoulderda min | — | 11.598 in | — | — |
| Maximum diameter of housing shoulderDa max | — | 405.4 mm | — | — |
| Maximum diameter of housing shoulderDa max | — | 15.961 in | — | — |
| Maximum fillet radiusra max | — | 3 mm | — | — |
| Maximum fillet radiusra max | — | 0.118 in | — | — |
| Performance | ||||
| Dynamic loadC | — | — | — | 360 kN |
| Static loadC0 | — | — | — | 420 kN |
| Fatigue limit loadCu | — | — | — | 16.9 kN |
| Coefficientf0 | — | — | — | 15.5 |
| Oil lubrication limit speedN lim | — | — | — | 1600 r/min |
| Grease lubrication limit speedN lim | — | — | — | 1400 r/min |
| Min operating temperatureTmin | — | — | — | -40 °C |
| Max operating temperatureTmax | — | — | — | 120 °C |
| Product characteristics | ||||
| Catalogue construction | — | — | — | Deep groove ball bearing, radial contact, machined cage, open |
| Cage construction | — | — | — | machined cage |
| Closure construction | — | — | — | open |
| Type of SealWithout | — | Not sealed | — | — |
| Tolerance classPN | — | Normal (ISO 492:2023) | — | — |
| Dimensional / heat stabilizationS1 | — | Rings dimensional stabilized up to 200° | — | — |
| Radial internal clearanceCN (Group N) | — | Normal internal clearance | — | — |
| Bore typeZ | — | Cylindrical | — | — |
| Product identity | ||||
| Official product category | Deep groove ball bearings | — | — | — |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/deep-groove-ball-bearings | — | — | — |
| Structure group ID | BB1_001_101 | — | — | — |
| Available from SKF | Yes | — | — | — |
| Remanufacturable | Yes | — | — | — |
| Product Identity | ||||
| Construction | — | Deep groove ball bearing 60..-M, single row, solid brass cage | — | — |
| Short Description | — | Deep groove ball bearing | — | — |
| Properties | ||||
| Filling slots | Without | — | — | — |
| Number of rows | 1 | — | — | — |
| Locating feature, bearing outer ring | Without | — | — | — |
| Bore type | Cylindrical | — | — | — |
| Matched arrangement | No | — | — | — |
| Radial internal clearance | CN | — | — | — |
| Material, bearing | Bearing steel | — | — | — |
| Coating | Without | — | — | — |
| Relubrication feature | Without | — | — | — |
| Candidate for remanufacturing | Yes | — | — | — |
| Indicative carbon footprint for new product | 115.0 kg CO 2 e | — | — | — |
| Indicative carbon footprint for remanufactured product | 38.1 kg CO 2 e | — | — | — |
| Technical Data | ||||
| d | — | — | 420 mm | — |
| B | — | — | 65 mm | — |
| R(Min.) | — | — | 4 mm | — |
| Basic Load Ratings : Cr | — | — | 377 kN | — |
| Bore Diameter (D) | — | 280 mm | — | — |
| Basic Load Ratings : C0R | — | — | 408 kN | — |
| Outside Diameter (D) | — | 420 mm | — | — |
| Fatigue Load Limit : Cu | — | — | 15.5 kN | — |
| Width (B) | — | 65 mm | — | — |
| Factor : F0 | — | — | 16.0 | — |
| Basic Dynamic Load Rating, Radial (Cr) | — | 320,000 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 1300 min-1 | — |
| Basic Static Load Rating, Radial (C0R) | — | 435,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 1500 min-1 | — |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — |
| Da(Min.) | — | — | 296 mm | — |
| Limiting Speed (Ng) | — | 2,600 1/min | — | — |
| Da(Max.) | — | — | 404 mm | — |
| Operating Temperature Max. (Tmax) | — | 200 °C | — | — |
| Ra(Max.) | — | — | 3 mm | — |
| Reference Speed (Nϑr) | — | 2,070 1/min | — | — |
| Mass(Refer.) | — | — | 31.0 kg | — |
| Calculation Factor (F0) | — | 15.8 | — | — |
| Fatigue Load Limit, Radial (Cur) | — | 14,800 N | — | — |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 294.6 mm | — | — |
| Shoulder Diameter Inner Ring (D1) | — | 324.05 mm | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 405.4 mm | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm | — | — |
| Maximum Fillet Radius (Ra Max) | — | 3 mm | — | — |
| Shoulder Diameter Outer Ring (D1) | — | 377.45 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 | — | — |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.