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 | 18500 | |
| Variant / construction | TS - Tapered Single | |
| Bore diameter | d | 41.275 mm |
| Outside diameter | D | 73.025 mm |
| Width | B | 16.667 mm |
| Basic dynamic load rating | C | 50.8 kN |
| Basic static load rating | C0 | 58.1 kN |
| Mass | ≈m | 0.28 kg |
| Precision class | ABMA Class 0 | |
| Sealing | Open | |
| Cage | Steel cage |
Calculation Factors6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| K Factor | 1.67 | |
| Y1 Factor | 1.71 | |
| Y2 Factor | 0.00 | |
| Y0 Factor | 0.94 | |
| E Factor | 0.35 | |
| Cg Factor | 0.0681 |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | Timken | |
| Material Number | 000000000100055155 | |
| World Assembly Part Number | 18590_18520 | |
| Inner Ring Part Number | 18590 | |
| Outer Ring Part Number | 18520 | |
| Drawing Number | A-12335 | |
| Upc | 0053893196206 | |
| Official Source System | CORE BP - DS DF | |
| Official Last Run | 2026-08-23T20:02:47.5 |
Product Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type Description | TS - Tapered Single | |
| Construction | Precision Tapered Roller Bearing Assembly | Imperial Series | 1.6250 in Bore | 2.8750 in OD | 0.6562 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 0 | |
| Number Of Rows | 1 | |
| Tapered Bore | N |
Technical Data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Overall Width | 19.462 mm | |
| Radial Rating | 13,200 N | |
| Axial Rating | 7,890 N | |
| Dynamic Rating C1 | 50,800 N | |
| Dynamic Rating C90 | 13,200 N | |
| Dynamic Axial Rating Ca90 | 7,890 N | |
| Dynamic Axial Rating Ca1 | 30,400 N | |
| Static Radial Rating C0 | 58,100 N | |
| Extended Dynamic Rating Ce | 0 N | |
| Static Axial Rating C0A | 59,200 N |
