Cross-brand designation analysis
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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
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Dimensions verified
“23976” across 5 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 | SKF23976 CC/W33380 × 520 × 106 mm | FAG23976-MB380 × 520 × 106 mm | TIMKEN23976EMBW33380 × 520 × 106 mm | NSK23976CAME4380 × 520 × 106 mm | KOYO23976R380 × 520 × 106 mm |
|---|---|---|---|---|---|
| Comparable specifications | |||||
| Brand | SKF | FAG | TIMKEN | NSK | KOYO |
| Designation | 23976 CC/W33 | 23976-MB | 23976EMBW33 | 23976CAME4 | 23976R |
| Product family | Spherical roller bearings | — | Radial SRB | Spherical roller bearing | Spherical roller bearings |
| Detailed type | Spherical roller bearing with relubrication features | Spherical roller bearings | Spherical roller bearings | Spherical roller bearings | Spherical roller bearings |
| Series | — | 23976 | EX27522 | — | — |
| Bore diameterd | 380 mm | 380 mm | 380 mm | 380 mm | 380 mm |
| Outside diameterD | 520 mm | 520 mm | 520 mm | 520 mm | 520 mm |
| WidthB | 106 mm | 106 mm | 106 mm | 106 mm | 106 mm |
| Basic dynamic load ratingC | 2011 kN | 1780 kN | 2130 kN | 2340 kN | 2220 kN |
| Basic static load ratingC0 | 3800 kN | 4000 kN | 3940 kN | 4100 kN | 3940 kN |
| Fatigue load limitPu | 290 kN | 270 kN | — | — | 295 kN |
| Reference speednref | 1100 r/min | 750 r/min | — | — | — |
| Limiting speednG | 1200 r/min | 1340 r/min | — | — | 500 r/min |
| Mass≈m | 66.4 kg | 68.78 kg | 67.05 kg | 65.4 kg | 70 kg |
| Precision class | Normal | — | — | — | — |
| Internal clearance | CN | CN (Group N) — Normal internal clearance | — | CN | — |
| Sealing | Without | — | Open | — | — |
| Cage | Sheet metal | MB — Solid brass cage | Brass cage | Machined brass | — |
| Lubricant | None | — | — | — | — |
| Minimum operating temperatureTmin | — | -30 °C | — | — | — |
| Maximum operating temperatureTmax | — | 200 °C | — | — | — |
| Boundary dimensions | |||||
| Bearing widthB | — | — | — | 106 mm | — |
| Minimum bearing chamferr min. | — | — | — | 4 mm | — |
| Calculation Factors | |||||
| K Factor | — | — | 0.00 | — | — |
| Y1 Factor | — | — | 3.80 | — | — |
| Y2 Factor | — | — | 5.66 | — | — |
| Y0 Factor | — | — | 3.72 | — | — |
| E Factor | — | — | 0.18 | — | — |
| Cg Factor | — | — | 0.1400 | — | — |
| Calculation factors | |||||
| Limiting value of Fa/Fr for the applicability of diff. Values of factors X and Ye | — | 0.19 | — | — | — |
| Dynamic axial load factorY1 | — | 3.58 | — | — | — |
| Dynamic axial load factorY2 | — | 5.33 | — | — | — |
| Static axial load factorY0 | — | 3.5 | — | 3.6 | — |
| 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 | — | — | — |
| Staticangularerrorandmisalignment | — | Yes | — | — | — |
| Dynamicangularerrorandmisalignment | — | Yes | — | — | — |
| Classification | |||||
| Official Category Path | — | — | — | — | Spherical roller bearings - Spherical roller bearings |
| Official Classification 1 | — | — | — | — | Spherical roller bearings |
| Construction | |||||
| Bore construction | — | — | — | Cylindrical bore | — |
| Cage material and manufacture | — | — | — | Machined brass | — |
| Outer-ring lubrication features | — | — | — | E4: oil groove and oil holes | — |
| Internal clearance — catalogue omission rule | — | — | — | CN (normal), where no clearance suffix is specified | — |
| Precision — catalogue omission rule | — | — | — | ISO Normal, where no precision suffix is specified | — |
| Catalogue NSK HPS marking | — | — | — | Marked with an asterisk (HPS) | — |
| Dimensions | |||||
| Minimum chamfer dimensionrmin | — | 4 mm | — | — | — |
| Minimum chamfer dimensionrmin | — | 0.157 in | — | — | — |
| Bore diameter outer ringD1 | — | 477.6 mm | — | — | — |
| Bore diameter outer ringD1 | — | 18.803 in | — | — | — |
| Diameter lubrication holeds | — | 9.5 mm | — | — | — |
| Diameter lubrication holeds | — | 0.374 in | — | — | — |
| Width of lubricating groovens | — | 17.7 mm | — | — | — |
| Width of lubricating groovens | — | 0.697 in | — | — | — |
| Engineering — Abutment dimensions | |||||
| Diameter of shaft abutmentd a | min. 395 mm | — | — | — | — |
| Diameter of housing abutmentD a | max. 505 mm | — | — | — | — |
| Radius of filletr a | max. 3 mm | — | — | — | — |
| Engineering — Calculation data | |||||
| SKF performance class | SKF Explorer | — | — | — | — |
| Limiting valuee | 0.17 | — | — | — | — |
| Calculation factorY 1 | 4 | — | — | — | — |
| Calculation factorY 2 | 5.9 | — | — | — | — |
| Calculation factorY 0 | 4 | — | — | — | — |
| Engineering — Dimensions | |||||
| Deviation limits of mid-range bore diametert Δdmp | -0.04 to 0 mm | — | — | — | — |
| Deviation limits of mid-range outside diametert ΔDmp | -0.05 to 0 mm | — | — | — | — |
| Deviation limits of ring widtht ΔBs | -0.4 to 0 mm | — | — | — | — |
| Shoulder diameter of inner ringd 2 | ≈ 419 mm | — | — | — | — |
| Shoulder/recess diameter of outer ringD 1 | ≈ 481 mm | — | — | — | — |
| Width of lubrication grooveb | 13.9 mm | — | — | — | — |
| Diameter of lubrication holeK | 7.5 mm | — | — | — | — |
| Chamfer dimensionr 1,2 | min. 4 mm | — | — | — | — |
| ISO tolerance class for dimensions | Normal | — | — | — | — |
| Engineering — Engineering specifications | |||||
| Bore type | Cylindrical | — | — | — | — |
| Engineering — Radial internal clearance | |||||
| Minimum initial clearance | 220 µm | — | — | — | — |
| Maximum initial clearance | 340 µm | — | — | — | — |
| Engineering — Tolerances of run-out | |||||
| Range of section height at inner ring of assembled bearingt Kia | 60 µm | — | — | — | — |
| Range of section height at outer ring of assembled bearingt Kea | 100 µm | — | — | — | — |
| ISO tolerance class for geometrical tolerances | Normal | — | — | — | — |
| Equivalent-load factors | |||||
| Dynamic load ratio thresholde | — | — | — | 0.18 | — |
| Dynamic axial factor above thresholdY2 | — | — | — | 5.5 | — |
| Dynamic axial factor at or below thresholdY3 | — | — | — | 3.7 | — |
| Load ratings | |||||
| Basic dynamic radial load ratingCr | — | — | — | 2340000 N | — |
| Basic static radial load ratingC0r | — | — | — | 4100000 N | — |
| Logistics | |||||
| Product net weight | 66.4 kg | — | — | — | — |
| eClass code | 23-05-09-11 | — | — | — | — |
| UNSPSC code | 31171510 | — | — | — | — |
| Lubrication-qualified speed | |||||
| Thermal speed rating — oil bath | — | — | — | 1100 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | — | — | 1500 r/min | — |
| Limiting speed — grease | — | — | — | 530 r/min | — |
| Limiting speed — oil bath | — | — | — | 670 r/min | — |
| Main Dimensions & Performance Data | |||||
| Basic dynamic load rating, radialCr | — | 1,780,000 N | — | — | — |
| Basic dynamic load rating, radialCr | — | 400,179.856 lbf | — | — | — |
| Basic static load rating, radialC0r | — | 4,000,000 N | — | — | — |
| Basic static load rating, radialC0r | — | 899,280.576 lbf | — | — | — |
| Fatigue load limit, radialCur | — | 270,000 N | — | — | — |
| Fatigue load limit, radialCur | — | 60,701.439 lbf | — | — | — |
| Manufacturer Identity | |||||
| Schaeffler Product Code | — | 390073 | — | — | — |
| Material Number | — | — | 000000000190032399 | — | — |
| Official Class Key | — | — | — | — | 060-010-000 |
| Base Type | — | 23976 | — | — | — |
| World Assembly Part Number | — | — | 23976EMBW33 | — | — |
| Old Designation | — | ["23976MB"] | — | — | — |
| Inner Ring Part Number | — | — | 380ASDY39 | — | — |
| Gpsd Group | — | F03 | — | — | — |
| Outer Ring Part Number | — | — | 380ESDC39W33 | — | — |
| Product Line Id | — | 78 | — | — | — |
| Drawing Number | — | — | M946817 | — | — |
| X Life Marking | — | n.r. | — | — | — |
| Upc | — | — | 0087796044975 | — | — |
| Official Source System | — | — | CORE BP - DS DF | — | — |
| Official Last Run | — | — | 2026-08-23T20:02:47.847 | — | — |
| SAP material number | — | 0190017890000 | — | — | — |
| Base product | — | 2305091131 | — | — | — |
| Bearing X designation | — | 23976-MB | — | — | — |
| Mounting Manager ID | — | 23976-MB | — | — | — |
| Grease application ID | — | 23976-MB | — | — | — |
| Mounting dimensions | |||||
| Minimum shaft shoulder diameterda min. | — | — | — | 398 mm | — |
| Maximum shaft shoulder diameterda max. | — | — | — | Not stated in this catalogue row | — |
| Maximum housing shoulder diameterDa max. | — | — | — | 502 mm | — |
| Minimum housing shoulder diameterDa min. | — | — | — | 482 mm | — |
| Maximum adjacent fillet radiusra max. | — | — | — | 3 mm | — |
| Minimum diameter shaft shoulderda min | — | 394.6 mm | — | — | — |
| Minimum diameter shaft shoulderda min | — | 15.535 in | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 505.4 mm | — | — | — |
| Maximum diameter of housing shoulderDa max | — | 19.898 in | — | — | — |
| Maximum recess radiusra max | — | 3 mm | — | — | — |
| Maximum recess radiusra max | — | 0.118 in | — | — | — |
| Product characteristics | |||||
| Bore typeZ | — | Cylindrical | — | — | — |
| Radial internal clearanceCN (Group N) | — | Normal internal clearance | — | — | — |
| Relubrication feature | With | Standard | — | — | — |
| Product identity | |||||
| Official product category | Spherical roller bearings | — | — | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/spherical-roller-bearings | — | — | — | — |
| Structure group ID | BS2_001 | — | — | — | — |
| Available from SKF | Yes | — | — | — | — |
| Remanufacturable | Yes | — | — | — | — |
| Product Identity | |||||
| Construction | — | Spherical roller bearing 239..-MB, symmetric 3 ribs | Spherical Roller Bearing | Imperial Series | 14.9606 in Bore | 20.4724 in OD | 4.1732 in Width | Open | Cylindrical Bore | Brass Cage | C0 Clearance | Bearing contains application features | — | — |
| Type Description | — | — | Radial SRB | — | — |
| Short Description | — | Spherical Roller Bearing | — | — | — |
| Number Of Rows | 2 | — | 2 | — | — |
| Tapered Bore | — | — | N | — | — |
| Properties | |||||
| Locating feature, bearing outer ring | Without | — | — | — | — |
| Radial internal clearance | CN | — | — | — | — |
| Tolerance class for dimensions | Normal | — | — | — | — |
| Tolerance class for run-out | Normal | — | — | — | — |
| Candidate for remanufacturing | Yes | — | — | — | — |
| Indicative carbon footprint for new product | 246.0 kg CO 2 e | — | — | — | — |
| Indicative carbon footprint for remanufactured product | 81.6 kg CO 2 e | — | — | — | — |
| Reference mass | |||||
| Approximate catalogue mass | — | — | — | 65.4 kg | — |
| Technical Data | |||||
| d | — | — | — | — | 520 mm |
| B | — | — | — | — | 106 mm |
| R(Min.) | — | — | — | — | 4 mm |
| Basic Load Ratings : Cr | — | — | — | — | 2220 kN |
| Bore Diameter (D) | — | 380 mm | — | — | — |
| Overall Width | — | — | 0.000 mm | — | — |
| Basic Load Ratings : C0R | — | — | — | — | 3940 kN |
| Outside Diamater (D) | — | 520 mm | — | — | — |
| Radial Rating | — | — | 2,130,000 N | — | — |
| Fatigue Load Limit : Cu | — | — | — | — | 295 kN |
| Total Width (B) | — | 106 mm | — | — | — |
| Axial Rating | — | — | 0 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | — | — | 500 min-1 |
| Basic Dynamic Load Rating, Radial (Cr) | — | 1,780,000 N | — | — | — |
| Dynamic Rating C1 | — | — | 2,130,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | — | — | 660 min-1 |
| Basic Static Load Rating, Radial (C0R) | — | 4,000,000 N | — | — | — |
| Dynamic Rating C90 | — | — | 0 N | — | — |
| Constant E | — | — | — | — | 0.19 |
| Diameter Lubrication Hole (Ds) | — | 9.5 mm | — | — | — |
| Dynamic Axial Rating Ca90 | — | — | 0 N | — | — |
| Axial Load Factors : Y1 | — | — | — | — | 3.62 |
| Operating Temperature Min. (Tmin) | — | -30 °C | — | — | — |
| Dynamic Axial Rating Ca1 | — | — | 0 N | — | — |
| Axial Load Factors : Y2 | — | — | — | — | 5.39 |
| Minimum Diameter Shaft Shoulder (Da) | — | 394.6 mm | — | — | — |
| Static Radial Rating C0 | — | — | 3,940,000 N | — | — |
| Axial Load Factors : Y0 | — | — | — | — | 3.54 |
| Operating Temperature Max. (Tmax) | — | 200 °C | — | — | — |
| Extended Dynamic Rating Ce | — | — | 0 N | — | — |
| Da(Min.) | — | — | — | — | 398 mm |
| Limiting Speed (Limiting Spe) | — | 1,340 1/min | — | — | — |
| Static Axial Rating C0A | — | — | 0 N | — | — |
| Da(Max.) | — | — | — | — | 502 mm |
| Reference Speed (Nϑr) | — | 750 1/min | — | — | — |
| Ra(Max.) | — | — | — | — | 3 mm |
| Maximum Recess Radius (Ra Max) | — | 3 mm | — | — | — |
| Mass(Refer.) | — | — | — | — | 70.0 kg |
| Maximum Diameter Of Housing Shoulder (Da) | — | 505.4 mm | — | — | — |
| Limiting Value Of Fa/Fr For The Applicability Of Diff. Values Of Factors X And Y (E) | — | 0.19 | — | — | — |
| Width Of Lubricating Groove (Ns) | — | 17.7 mm | — | — | — |
| Dynamic Axial Load Factor (Y1) | — | 3.58 | — | — | — |
| Bore Diameter Outer Ring (D1) | — | 477.6 mm | — | — | — |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm | — | — | — |
| Static Axial Load Factor (Y0) | — | 3.5 | — | — | — |
| Dynamic Axial Load Factor (Y2) | — | 5.33 | — | — | — |
| Fatigue Load Limit, Radial (Cur) | — | 270,000 N | — | — | — |
| 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.