Cross-brand designation analysis
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You entered 23934EMW509C08. This table explores the base group 23934; it does not preserve or approve every requested suffix. Search your complete marking first →
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One base designation across loaded brands
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Dimensions verified
“23934” across 3 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 | TIMKEN23934EMW33170 × 230 × 45 mm | NSK23934CAME4170 × 230 × 45 mm | KOYO23934R170 × 230 × 45 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | TIMKEN | NSK | KOYO |
| Designation | 23934EMW33 | 23934CAME4 | 23934R |
| Product family | Radial SRB | Spherical roller bearing | Spherical roller bearings |
| Detailed type | Spherical roller bearings | Spherical roller bearings | Spherical roller bearings |
| Series | EX27144 | — | — |
| Bore diameterd | 170 mm | 170 mm | 170 mm |
| Outside diameterD | 230 mm | 230 mm | 230 mm |
| WidthB | 45 mm | 45 mm | 45 mm |
| Basic dynamic load ratingC | 453 kN | 450 kN | 441 kN |
| Basic static load ratingC0 | 716 kN | 680 kN | 691 kN |
| Fatigue load limitPu | — | — | 69.6 kN |
| Limiting speednG | — | — | 1400 r/min |
| Mass≈m | 5.16 kg | 5.38 kg | 5.67 kg |
| Internal clearance | — | CN | — |
| Sealing | Open | — | — |
| Cage | Brass cage | Machined brass | — |
| Boundary dimensions | |||
| Bearing widthB | — | 45 mm | — |
| Minimum bearing chamferr min. | — | 2 mm | — |
| Calculation Factors | |||
| K Factor | 0.00 | — | — |
| Y1 Factor | 4.07 | — | — |
| Y2 Factor | 6.05 | — | — |
| Y0 Factor | 3.97 | — | — |
| E Factor | 0.17 | — | — |
| Cg Factor | 0.0892 | — | — |
| 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) | — |
| Equivalent-load factors | |||
| Dynamic load ratio thresholde | — | 0.17 | — |
| Dynamic axial factor above thresholdY2 | — | 5.8 | — |
| Dynamic axial factor at or below thresholdY3 | — | 3.9 | — |
| Static axial load factorY0 | — | 3.8 | — |
| Load ratings | |||
| Basic dynamic radial load ratingCr | — | 450000 N | — |
| Basic static radial load ratingC0r | — | 680000 N | — |
| Lubrication-qualified speed | |||
| Thermal speed rating — oil bath | — | 3000 r/min | — |
| Mechanical limiting speed — forced oil circulation | — | 3600 r/min | — |
| Limiting speed — grease | — | 1400 r/min | — |
| Limiting speed — oil bath | — | 1800 r/min | — |
| Manufacturer Identity | |||
| Material Number | 000000000190028082 | — | — |
| Official Class Key | — | — | 060-010-000 |
| World Assembly Part Number | 23934EMW33 | — | — |
| Inner Ring Part Number | 170ASDY39 | — | — |
| Outer Ring Part Number | 170ESDC39W33 | — | — |
| Drawing Number | M944483 | — | — |
| Upc | 0087796142343 | — | — |
| Official Source System | CORE BP - DS DF | — | — |
| Official Last Run | 2026-08-23T20:02:46.153 | — | — |
| Mounting dimensions | |||
| Minimum shaft shoulder diameterda min. | — | 180 mm | — |
| Maximum shaft shoulder diameterda max. | — | Not stated in this catalogue row | — |
| Maximum housing shoulder diameterDa max. | — | 220 mm | — |
| Minimum housing shoulder diameterDa min. | — | 213 mm | — |
| Maximum adjacent fillet radiusra max. | — | 2 mm | — |
| Product Identity | |||
| Type Description | Radial SRB | — | — |
| Construction | Spherical Roller Bearing | Imperial Series | 6.6929 in Bore | 9.0551 in OD | 1.7717 in Width | Open | Cylindrical Bore | Brass Cage | C0 Clearance | Bearing contains application features | — | — |
| Number Of Rows | 2 | — | — |
| Tapered Bore | N | — | — |
| Reference mass | |||
| Approximate catalogue mass | — | 5.38 kg | — |
| Technical Data | |||
| d | — | — | 230 mm |
| B | — | — | 45 mm |
| R(Min.) | — | — | 2 mm |
| Basic Load Ratings : Cr | — | — | 441 kN |
| Overall Width | 0.000 mm | — | — |
| Basic Load Ratings : C0R | — | — | 691 kN |
| Radial Rating | 453,000 N | — | — |
| Fatigue Load Limit : Cu | — | — | 69.6 kN |
| Axial Rating | 0 N | — | — |
| Limiting Speeds(Grease Lub.) | — | — | 1400 min-1 |
| Dynamic Rating C1 | 453,000 N | — | — |
| Limiting Speeds(Oil Lub.) | — | — | 1900 min-1 |
| Dynamic Rating C90 | 0 N | — | — |
| Constant E | — | — | 0.18 |
| Dynamic Axial Rating Ca90 | 0 N | — | — |
| Axial Load Factors : Y1 | — | — | 3.78 |
| Dynamic Axial Rating Ca1 | 0 N | — | — |
| Axial Load Factors : Y2 | — | — | 5.63 |
| Static Radial Rating C0 | 716,000 N | — | — |
| Axial Load Factors : Y0 | — | — | 3.70 |
| Extended Dynamic Rating Ce | 0 N | — | — |
| Da(Min.) | — | — | 180 mm |
| Static Axial Rating C0A | 0 N | — | — |
| Da(Max.) | — | — | 220 mm |
| Ra(Max.) | — | — | 2 mm |
| Mass(Refer.) | — | — | 5.67 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.