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- Product No.：NNU4921
- Brand：Bearing Catalog
- Catagory：Cylindrical roller bearing
- Basic Dimensions
- ID：105 OD：145 Width：40
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Product Graphics
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Principal dimensions （mm)
| d | 105 | |
| D | 145 | |
| B | 40 | |
| r s min 2) | 1.1 | |
Basic load ratings KN
| dyc Cr | 133 | |
| stc Cor | 268 | |
Basic load ratings kgf
| dyc Cr | 13500 | |
| stc Cor | 27400 | |
Allowed speed min -1
| Grease | 4100 | |
| Oil | 4800 | |
Bearing No.
| NNU Cylindrical bore | NNU4921 | |
| NNU Taper Bore 1) | NNU4921K | |
| NN Cylindrical bore | NN4921 | |
| NN Taper Bore 1) | NN4921K | |
Dimensions mm
| F w | 118 | |
| E w | 134 | |
Fitting dimension (mm)
| d a Min | 111.5 | |
| d b Min | 115 | |
| d c Max | 116 | |
| d d Min | 120 | |
| D a Max | 138.5 | |
| D b Max | 138.5 | |
| D b Min | 136 | |
| r as Max | 1 | |
Weight(Approx) kg
| NNU Cylindrical bore | 1.91 | |
| NNU Taper Bore | 1.82 | |
| NN Cylindrical bore | 1.82 | |
| NN Taper Bore | 1.73 | |
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