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 | 38800 | |
| Variant / construction | TS - Tapered Single | |
| Bore diameter | d | 263.525 mm |
| Outside diameter | D | 325.438 mm |
| Width | B | 28.575 mm |
| Basic dynamic load rating | C | 221 kN |
| Basic static load rating | C0 | 554 kN |
| Mass | ≈m | 5.19 kg |
| Precision class | ABMA Class 2 | |
| Sealing | Open | |
| Cage | Steel cage |
Calculation Factors6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| K Factor | 1.60 | |
| Y1 Factor | 1.64 | |
| Y2 Factor | 0.00 | |
| Y0 Factor | 0.90 | |
| E Factor | 0.37 | |
| Cg Factor | 0.1676 |
Manufacturer Identity8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | Timken | |
| Material Number | 000000000190073415 | |
| World Assembly Part Number | 38880_38820WA | |
| Inner Ring Part Number | 38880 | |
| Outer Ring Part Number | 38820WA | |
| Drawing Number | C-120391 | |
| Official Source System | CORE BP - DS DF | |
| Official Last Run | 2026-08-23T20:02:47.387 |
Product Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type Description | TS - Tapered Single | |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 10.3750 in Bore | 12.8125 in OD | 1.1250 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | |
| Number Of Rows | 1 | |
| Tapered Bore | N |
Technical Data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Overall Width | 31.375 mm | |
| Radial Rating | 57,400 N | |
| Axial Rating | 35,900 N | |
| Dynamic Rating C1 | 221,000 N | |
| Dynamic Rating C90 | 57,400 N | |
| Dynamic Axial Rating Ca90 | 35,900 N | |
| Dynamic Axial Rating Ca1 | 139,000 N | |
| Static Radial Rating C0 | 554,000 N | |
| Extended Dynamic Rating Ce | 0 N | |
| Static Axial Rating C0A | 590,000 N |
