Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Series | 30318 | |
| Variant / construction | TS - Tapered Single | |
| Bore diameter | d | 90 mm |
| Outside diameter | D | 190 mm |
| Width | B | 46.5 mm |
| Basic dynamic load rating | C | 406 kN |
| Basic static load rating | C0 | 429 kN |
| Mass | ≈m | 5.66 kg |
| Precision class | ABMA Class K | |
| Sealing | Open | |
| Cage | Steel cage |
Calculation Factors6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| K Factor | 1.69 | |
| Y1 Factor | 1.74 | |
| Y2 Factor | 0.00 | |
| Y0 Factor | 0.96 | |
| E Factor | 0.35 | |
| Cg Factor | 0.0882 |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | Timken | |
| Material Number | 000000000190032725 | |
| World Assembly Part Number | X30318M_Y30318M | |
| Inner Ring Part Number | X30318M | |
| Outer Ring Part Number | Y30318M | |
| Drawing Number | C-89328 | |
| Upc | 0053893076508 | |
| Official Source System | CORE BP - DS DF | |
| Official Last Run | 2026-08-23T20:02:47.683 |
Product Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type Description | TS - Tapered Single | |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 3.5433 in Bore | 7.4803 in OD | 1.8307 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class K | |
| Number Of Rows | 1 | |
| Tapered Bore | N |
Technical Data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Overall Width | 53.200 mm | |
| Radial Rating | 105,000 N | |
| Axial Rating | 62,200 N | |
| Dynamic Rating C1 | 406,000 N | |
| Dynamic Rating C90 | 105,000 N | |
| Dynamic Axial Rating Ca90 | 62,200 N | |
| Dynamic Axial Rating Ca1 | 240,000 N | |
| Static Radial Rating C0 | 429,000 N | |
| Extended Dynamic Rating Ce | 0 N | |
| Static Axial Rating C0A | 431,000 N |