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30308 Tapered Roller Bearing 40x90x25.25mm
This is a single-row tapered roller bearing with the model number 30308. This is one of the most basic and widely used type of tapered roller bearings. The bore diameter of this bearing is 40 mm, the outer diameter is 90 mm, and the total width is 25.25 mm.
This tapered roller bearing set consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). Tapered roller bearings are able to carry radial and axial load in one direction simultaneously. If installed correctly it has relatively long service life compared to other bearing type.
Specs:
Bearing Model: 30308
Bore Diameter (d): 40 mm
Outer Diameter (D): 90 mm
Bearing Width (T): 25.25 mm
Cone Width (B): 23 mm
Cup Width (C): 20 mm
Material: GCR15 Bearing Steel
| Model | Dimension (mm) | Cr(N) | Cor(N) | (rpm) | |||||||
| d | D | T | B | C | r1(min) | r2(min) | da(min) | db(max) | |||
| L21549/L21511 | 15.875 | 34.988 | 10.998 | 10.998 | 8.712 | 1.3 | 1.3 | 13800 | 13400 | 11000 | 15000 |
| 11590/11520 | 15.875 | 42.862 | 14.288 | 14.288 | 9.525 | 1.5 | 1.5 | 17800 | 17800 | 8500 | 12000 |
| H-11590/H-11520 | 15.875 | 42.863 | 14.288 | 14.288 | 9.525 | 1.6 | 1.6 | 17800 | 17700 | 8600 | 12000 |
| A6067/A6157 | 16.993 | 39.992 | 12.014 | 11.153 | 9.525 | 0.8 | 1.3 | 14900 | 15700 | 10000 | 14000 |
| LM11749/LM11710 | 17.462 | 39.878 | 13.843 | 14.605 | 10.668 | 1.3 | 1.3 | 23400 | 23000 | 10000 | 13000 |
| H-LM11749/H-LM11710 | 17.463 | 39.878 | 13.843 | 14.605 | 10.668 | 1.2 | 1.2 | 25400 | 26000 | 8800 | 12000 |
| A6075/A6157 | 19.05 | 39.992 | 12.014 | 11.153 | 9.525 | 1 | 1.3 | 14900 | 15700 | 10000 | 14000 |
| H-LM11949/H-LM11910 | 19.05 | 45.237 | 15.494 | 16.637 | 12.065 | 1.2 | 1.2 | 29400 | 30100 | 7800 | 11000 |
| LM11949/LM11910 | 19.05 | 45.237 | 15.494 | 16.637 | 12.065 | 1.3 | 1.3 | 29900 | 30500 | 9000 | 12000 |
| 5075/5185 | 19.05 | 47 | 14.381 | 14.381 | 11.112 | 1.3 | 1.3 | 24900 | 25400 | 8500 | 11000 |
| H-09067/H-09195 | 19.05 | 49.225 | 18.034 | 19.05 | 14.288 | 1.2 | 1.2 | 37700 | 37700 | 7500 | 10000 |
| 9067/9195 | 19.05 | 49.225 | 18.034 | 19.05 | 14.288 | 1.3 | 1.3 | 37500 | 37500 | 8500 | 11000 |
| 9067/9196 | 19.05 | 49.225 | 21.209 | 19.05 | 17.463 | 1.3 | 1.5 | 37500 | 37500 | 8500 | 11000 |
| 9067/9194 | 19.05 | 49.225 | 21.209 | 19.05 | 17.463 | 1.3 | 3.5 | 37500 | 37500 | 8500 | 11000 |
| 9078/9195 | 19.05 | 49.225 | 19.845 | 21.539 | 14.288 | 1.3 | 1.3 | 37500 | 37500 | 8500 | 11000 |
| 9078/9196 | 19.05 | 49.225 | 23.02 | 21.539 | 17.463 | 1.3 | 1.5 | 37500 | 37500 | 8500 | 11000 |
| 9078/9194 | 19.05 | 49.225 | 23.02 | 21.539 | 17.463 | 1.3 | 3.5 | 37500 | 37500 | 8500 | 11000 |
| 9074/9195 | 19.05 | 49.225 | 19.845 | 21.539 | 14.288 | 1.3 | 1.3 | 37500 | 37500 | 8500 | |
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