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 | 18700 | |
| Variant / construction | TS - Tapered Single | |
| Bore diameter | d | 50.8 mm |
| Outside diameter | D | 85 mm |
| Width | B | 17.462 mm |
| Basic dynamic load rating | C | 54.7 kN |
| Basic static load rating | C0 | 67.5 kN |
| Mass | ≈m | 0.37 kg |
| Precision class | ABMA Class 0 | |
| Sealing | Open | |
| Cage | Steel cage |
Calculation Factors6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| K Factor | 1.44 | |
| Y1 Factor | 1.48 | |
| Y2 Factor | 0.00 | |
| Y0 Factor | 0.81 | |
| E Factor | 0.41 | |
| Cg Factor | 0.0789 |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | Timken | |
| Material Number | 000000000100084791 | |
| World Assembly Part Number | 18790_18720 | |
| Inner Ring Part Number | 18790 | |
| Outer Ring Part Number | 18720 | |
| Drawing Number | A-11148 | |
| Upc | 0053893198248 | |
| Official Source System | CORE BP - DS DF | |
| Official Last Run | 2026-08-23T20:02:47.063 |
Product Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type Description | TS - Tapered Single | |
| Construction | Precision Tapered Roller Bearing Assembly | Imperial Series | 2.0000 in Bore | 3.3465 in OD | 0.6875 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 | 20.262 mm | |
| Radial Rating | 14,200 N | |
| Axial Rating | 9,840 N | |
| Dynamic Rating C1 | 54,700 N | |
| Dynamic Rating C90 | 14,200 N | |
| Dynamic Axial Rating Ca90 | 9,840 N | |
| Dynamic Axial Rating Ca1 | 38,000 N | |
| Static Radial Rating C0 | 67,500 N | |
| Extended Dynamic Rating Ce | 0 N | |
| Static Axial Rating C0A | 79,800 N |
