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| Parameter | SKF6244 M220 × 400 × 65 mm | FAG6244-M220 × 400 × 65 mm | TIMKEN6244M220 × 400 × 65 mm | NSK6244220 × 400 × 65 mm | KOYO6244220 × 400 × 65 mm |
|---|---|---|---|---|---|
| Comparable specifications | |||||
| Brand | SKF | FAG | TIMKEN | NSK | KOYO |
| Designation | 6244 M | 6244-M | 6244M | 6244 | 6244 |
| Product family | Deep groove ball bearings | — | Radial Deep-Groove Ball | Single row deep groove ball bearings | Single-row / Open type |
| Detailed type | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings | Deep groove ball bearings |
| Series | — | 6244 | 6244 | — | — |
| Bore diameterd | 220 mm | 220 mm | 220 mm | 220 mm | 220 mm |
| Outside diameterD | 400 mm | 400 mm | 400 mm | 400 mm | 400 mm |
| WidthB | 65 mm | 65 mm | 65 mm | 65 mm | 65 mm |
| Basic dynamic load ratingC | 296 kN | 295 kN | 297 kN | 340 kN | 389 kN |
| Basic static load ratingC0 | 365 kN | 355 kN | 364 kN | 375 kN | 376 kN |
| Fatigue load limitPu | 8.8 kN | 13.9 kN | — | — | 16.8 kN |
| Reference speednref | 3200 r/min | 2200 r/min | — | — | — |
| Limiting speednG | 3000 r/min | 2850 r/min | — | — | 1400 r/min |
| Mass≈m | 36.9 kg | 37.9 kg | 23.7 kg | 37.4 kg | 37 kg |
| Precision class | Normal | PN — Normal (ISO 492:2023) | — | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | — | — |
| Sealing | Without | Without — Not sealed | Open | Open | Open |
| Cage | Machined brass | M — Solid brass cage, rolling element guided | Brass cage | — | — |
| Bearing material | Bearing steel | — | — | — | — |
| Lubricant | None | Without — Bearing not greased | — | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — | — |
| Maximum operating temperatureTmax | — | 200 °C | — | — | — |
| Boundary dimensions | |||||
| Bearing widthB | — | — | — | 65 mm | — |
| Minimum bearing chamferr min. | — | — | — | 4 mm | — |
| Calculation Factors | |||||
| K Factor | — | — | 0.00 | — | — |
| Y1 Factor | — | — | 0.00 | — | — |
| Y2 Factor | — | — | 0.00 | — | — |
| Y0 Factor | — | — | 0.50 | — | — |
| E Factor | — | — | 0.00 | — | — |
| Cg Factor | — | — | 0.1072 | — | — |
| Calculation factors | |||||
| Calculation factorf0 | — | 15.2 | — | — | — |
| 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 |
| Construction | |||||
| Catalogue closure construction | — | — | — | Open | — |
| Dimensions | |||||
| Minimum chamfer dimensionrmin | — | 4 mm | — | — | — |
| Minimum chamfer dimensionrmin | — | 0.157 in | — | — | — |
| Shoulder diameter outer ringD1 | — | 337.7 mm | — | — | — |
| Shoulder diameter outer ringD1 | — | 13.295 in | — | — | — |
| Shoulder diameter inner ringd1 | — | 282.1 mm | — | — | — |
| Shoulder diameter inner ringd1 | — | 11.106 in | — | — | — |
| Engineering — Abutment dimensions | |||||
| Diameter of shaft abutmentd a | min. 237 mm | — | — | — | — |
| Diameter of housing abutmentD a | max. 383 mm | — | — | — | — |
| Radius of shaft or housing filletr a | max. 3 mm | — | — | — | — |
| Engineering — Calculation data | |||||
| Minimum load factork r | 0.03 | — | — | — | — |
| Calculation factorf 0 | 15.3 | — | — | — | — |
| Engineering — Dimensions | |||||
| Deviation limits of mid-range bore diametert Δdmp | -0.03 to 0 mm | — | — | — | — |
| Deviation limits of mid-range outside diametert ΔDmp | -0.04 to 0 mm | — | — | — | — |
| Deviation limits of ring widtht ΔBs | -0.3 to 0 mm | — | — | — | — |
| Shoulder diameterd 1 | ≈ 334.7 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 | 40 µm | — | — | — | — |
| Range of section height at outer ring of assembled bearingt Kea | 70 µm | — | — | — | — |
| ISO tolerance class for geometrical tolerances | Normal | — | — | — | — |
| Load ratings | |||||
| Basic dynamic radial load ratingCr | — | — | — | 340000 N | — |
| Basic static radial load ratingC0r | — | — | — | 375000 N | — |
| Equivalent-load calculation factorf0 | — | — | — | 15.1 | — |
| Logistics | |||||
| Product net weight | 36.9 kg | — | — | — | — |
| eClass code | 23-05-08-01 | — | — | — | — |
| UNSPSC code | 31171504 | — | — | — | — |
| Lubrication-qualified speed | |||||
| Limiting speed with grease | — | — | — | 1300 r/min | — |
| Limiting speed with oil (open bearing) | — | — | — | 1600 r/min | — |
| Main Dimensions & Performance Data | |||||
| Basic dynamic load rating, radialCr | — | 295,000 N | — | — | — |
| Basic dynamic load rating, radialCr | — | 66,321.942 lbf | — | — | — |
| Basic static load rating, radialC0r | — | 355,000 N | — | — | — |
| Basic static load rating, radialC0r | — | 79,811.151 lbf | — | — | — |
| Fatigue load limit, radialCur | — | 13,900 N | — | — | — |
| Fatigue load limit, radialCur | — | 3,125 lbf | — | — | — |
| Manufacturer Identity | |||||
| Schaeffler Product Code | — | 351620 | — | — | — |
| Material Number | — | — | 000000000101753169 | — | — |
| Official Class Key | — | — | — | — | 010-010-010 |
| Base Type | — | 6244 | — | — | — |
| World Assembly Part Number | — | — | 6244MA | — | — |
| Old Designation | — | ["6244M"] | — | — | — |
| Upc | — | — | 0013992160638 | — | — |
| Gpsd Group | — | S02 | — | — | — |
| Product Line Id | — | 14 | — | — | — |
| Official Source System | — | — | CORE BP - DS DF | — | — |
| Official Last Run | — | — | 2026-08-23T20:02:47.94 | — | — |
| SAP material number | — | 0191068230000 | — | — | — |
| Base product | — | 2305080101 | — | — | — |
| Bearing X designation | — | 6244-M | — | — | — |
| Mounting Manager ID | — | 6244-M | — | — | — |
| Grease application ID | — | 6244-M | — | — | — |
| Mounting dimensions | |||||
| Minimum shaft shoulder diameterda min. | — | — | — | 236 mm | — |
| Maximum housing shoulder diameterDa max. | — | — | — | 384 mm | — |
| Maximum shaft or housing fillet radiusra max. | — | — | — | 3 mm | — |
| Minimum diameter shaft shoulderda min | — | 237 mm | — | — | — |
| Minimum diameter shaft shoulderda min | — | 9.331 in | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 383 mm | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 15.079 in | — | — | — |
| Maximum fillet radiusra max | — | 3 mm | — | — | — |
| Maximum fillet radiusra max | — | 0.118 in | — | — | — |
| Product characteristics | |||||
| 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 | |||||
| Type Description | — | — | Radial Deep-Groove Ball | — | — |
| Construction | — | Deep groove ball bearing 62..-M, single row, solid brass cage | Single Row Deep Groove Ball Bearing | Imperial Series | 8.6614 in Bore | 15.7480 in OD | 2.5591 in Width | Open | Cylindrical Bore | Brass Cage | C0 Clearance | ISO P0 Tolerance | — | — |
| Number Of Rows | 1 | — | 1 | — | — |
| Short Description | — | Deep groove ball bearing | — | — | — |
| Tapered Bore | — | — | N | — | — |
| Properties | |||||
| Filling slots | Without | — | — | — | — |
| 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 | 136.0 kg CO 2 e | — | — | — | — |
| Indicative carbon footprint for remanufactured product | 45.4 kg CO 2 e | — | — | — | — |
| Reference mass | |||||
| Approximate catalogue mass (open reference) | — | — | — | 37.4 kg | — |
| Technical Data | |||||
| d | — | — | — | — | 400 mm |
| Overall Width | — | — | 0.000 mm | — | — |
| B | — | — | — | — | 65 mm |
| Radial Rating | — | — | 0 N | — | — |
| R(Min.) | — | — | — | — | 4 mm |
| Bore Diameter (D) | — | 220 mm | — | — | — |
| Axial Rating | — | — | 0 N | — | — |
| Basic Load Ratings : Cr | — | — | — | — | 389 kN |
| Outside Diameter (D) | — | 400 mm | — | — | — |
| Dynamic Rating C1 | — | — | 297,000 N | — | — |
| Basic Load Ratings : C0R | — | — | — | — | 376 kN |
| Width (B) | — | 65 mm | — | — | — |
| Dynamic Rating C90 | — | — | 0 N | — | — |
| Fatigue Load Limit : Cu | — | — | — | — | 16.8 kN |
| Basic Dynamic Load Rating, Radial (Cr) | — | 295,000 N | — | — | — |
| Dynamic Axial Rating Ca90 | — | — | 0 N | — | — |
| Factor : F0 | — | — | — | — | 15.1 |
| Basic Static Load Rating, Radial (C0R) | — | 355,000 N | — | — | — |
| Dynamic Axial Rating Ca1 | — | — | 0 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | — | 1400 min-1 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — | — |
| Static Radial Rating C0 | — | — | 364,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | — | 1700 min-1 |
| Limiting Speed (Ng) | — | 2,850 1/min | — | — | — |
| Extended Dynamic Rating Ce | — | — | 0 N | — | — |
| Da(Min.) | — | — | — | — | 236 mm |
| Operating Temperature Max. (Tmax) | — | 200 °C | — | — | — |
| Static Axial Rating C0A | — | — | 0 N | — | — |
| Da(Max.) | — | — | — | — | 384 mm |
| Reference Speed (Nϑr) | — | 2,200 1/min | — | — | — |
| Ra(Max.) | — | — | — | — | 3 mm |
| Calculation Factor (F0) | — | 15.2 | — | — | — |
| Mass(Refer.) | — | — | — | — | 37.0 kg |
| Fatigue Load Limit, Radial (Cur) | — | 13,900 N | — | — | — |
| Minimum Diameter Shaft Shoulder (Da Min) | — | 237 mm | — | — | — |
| Shoulder Diameter Inner Ring (D1) | — | 282.1 mm | — | — | — |
| Maximum Diameter Of Housing Shoulder (Da Max) | — | 383 mm | — | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm | — | — | — |
| Maximum Fillet Radius (Ra Max) | — | 3 mm | — | — | — |
| Shoulder Diameter Outer Ring (D1) | — | 337.7 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.