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| Parameter | NSK23020CDE4100 × 150 × 37 mm | KOYO23020RH100 × 150 × 37 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | NSK | KOYO |
| Designation | 23020CDE4 | 23020RH |
| Product family | Spherical roller bearing | Spherical roller bearings |
| Detailed type | Spherical roller bearings | Spherical roller bearings |
| Bore diameterd | 100 mm | 100 mm |
| Outside diameterD | 150 mm | 150 mm |
| WidthB | 37 mm | 37 mm |
| Basic dynamic load ratingC | 212 kN | 262 kN |
| Basic static load ratingC0 | 335 kN | 332 kN |
| Fatigue load limitPu | — | 33.7 kN |
| Limiting speednG | — | 2900 r/min |
| Mass≈m | 2.31 kg | 2.34 kg |
| Internal clearance | CN | — |
| Cage | Pressed steel | — |
| Boundary dimensions | ||
| Bearing widthB | 37 mm | — |
| Minimum bearing chamferr min. | 1.5 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 | Pressed steel | — |
| 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 | 0.22 | — |
| Dynamic axial factor above thresholdY2 | 4.6 | — |
| Dynamic axial factor at or below thresholdY3 | 3.1 | — |
| Static axial load factorY0 | 3 | — |
| Load ratings | ||
| Basic dynamic radial load ratingCr | 212000 N | — |
| Basic static radial load ratingC0r | 335000 N | — |
| Lubrication-qualified speed | ||
| Thermal speed rating — oil bath | 3200 r/min | — |
| Mechanical limiting speed — forced oil circulation | Not stated in this catalogue row | — |
| Limiting speed — grease | 2200 r/min | — |
| Limiting speed — oil bath | 2800 r/min | — |
| Manufacturer Identity | ||
| Official Class Key | — | 060-010-000 |
| Mounting dimensions | ||
| Minimum shaft shoulder diameterda min. | 109 mm | — |
| Maximum shaft shoulder diameterda max. | 112 mm | — |
| Maximum housing shoulder diameterDa max. | 141 mm | — |
| Minimum housing shoulder diameterDa min. | 136 mm | — |
| Maximum adjacent fillet radiusra max. | 1.5 mm | — |
| Reference mass | ||
| Approximate catalogue mass | 2.31 kg | — |
| Technical Data | ||
| d | — | 150 mm |
| B | — | 37 mm |
| R(Min.) | — | 1.5 mm |
| Basic Load Ratings : Cr | — | 262 kN |
| Basic Load Ratings : C0R | — | 332 kN |
| Fatigue Load Limit : Cu | — | 33.7 kN |
| Limiting Speeds(Grease Lub.) | — | 2900 min-1 |
| Limiting Speeds(Oil Lub.) | — | 3900 min-1 |
| Constant E | — | 0.22 |
| Axial Load Factors : Y1 | — | 3.01 |
| Axial Load Factors : Y2 | — | 4.48 |
| Axial Load Factors : Y0 | — | 2.94 |
| Da(Min.) | — | 117 mm |
| Da(Max.) | — | 141 mm |
| Ra(Max.) | — | 1.5 mm |
| Mass(Refer.) | — | 2.34 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.