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| Parameter | NSK23219CAME495 × 170 × 55.6 mm | KOYO23219RZ95 × 170 × 55.6 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | NSK | KOYO |
| Designation | 23219CAME4 | 23219RZ |
| Product family | Spherical roller bearing | Spherical roller bearings |
| Detailed type | Spherical roller bearings | Spherical roller bearings |
| Bore diameterd | 95 mm | 95 mm |
| Outside diameterD | 170 mm | 170 mm |
| WidthB | 55.6 mm | 55.6 mm |
| Basic dynamic load ratingC | 370 kN | 457 kN |
| Basic static load ratingC0 | 525 kN | 516 kN |
| Fatigue load limitPu | — | 43.9 kN |
| Limiting speednG | — | 2800 r/min |
| Mass≈m | 5.33 kg | 5.5 kg |
| Internal clearance | CN | — |
| Cage | Machined brass | — |
| Boundary dimensions | ||
| Bearing widthB | 55.6 mm | — |
| Minimum bearing chamferr min. | 2.1 mm | — |
| 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 | No HPS asterisk in this row | — |
| Equivalent-load factors | ||
| Dynamic load ratio thresholde | 0.32 | — |
| Dynamic axial factor above thresholdY2 | 3.1 | — |
| Dynamic axial factor at or below thresholdY3 | 2.1 | — |
| Static axial load factorY0 | 2 | — |
| Load ratings | ||
| Basic dynamic radial load ratingCr | 370000 N | — |
| Basic static radial load ratingC0r | 525000 N | — |
| Lubrication-qualified speed | ||
| Thermal speed rating — oil bath | 2600 r/min | — |
| Mechanical limiting speed — forced oil circulation | Not stated in this catalogue row | — |
| Limiting speed — grease | 1700 r/min | — |
| Limiting speed — oil bath | 2200 r/min | — |
| Manufacturer Identity | ||
| Official Class Key | — | 060-010-000 |
| Mounting dimensions | ||
| Minimum shaft shoulder diameterda min. | 107 mm | — |
| Maximum shaft shoulder diameterda max. | Not stated in this catalogue row | — |
| Maximum housing shoulder diameterDa max. | 158 mm | — |
| Minimum housing shoulder diameterDa min. | 146 mm | — |
| Maximum adjacent fillet radiusra max. | 2 mm | — |
| Reference mass | ||
| Approximate catalogue mass | 5.33 kg | — |
| Technical Data | ||
| d | — | 170 mm |
| B | — | 55.6 mm |
| R(Min.) | — | 2.1 mm |
| Basic Load Ratings : Cr | — | 457 kN |
| Basic Load Ratings : C0R | — | 516 kN |
| Fatigue Load Limit : Cu | — | 43.9 kN |
| Limiting Speeds(Grease Lub.) | — | 2800 min-1 |
| Limiting Speeds(Oil Lub.) | — | 3600 min-1 |
| Constant E | — | 0.30 |
| Axial Load Factors : Y1 | — | 2.25 |
| Axial Load Factors : Y2 | — | 3.34 |
| Axial Load Factors : Y0 | — | 2.20 |
| Da(Min.) | — | 107 mm |
| Da(Max.) | — | 158 mm |
| Ra(Max.) | — | 2 mm |
| Mass(Refer.) | — | 5.50 kg |
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.