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 | 43000 | |
| Variant / construction | TSF - Tapered Single Flanged | |
| Bore diameter | d | 31.75 mm |
| Outside diameter | D | 79.375 mm |
| Width | B | 13.495 mm |
| Basic dynamic load rating | C | 92 kN |
| Basic static load rating | C0 | 76.2 kN |
| Mass | ≈m | 0.62 kg |
| Precision class | ABMA Class 2 | |
| Sealing | Open | |
| Cage | Steel cage |
Calculation Factors6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| K Factor | 0.87 | |
| Y1 Factor | 0.90 | |
| Y2 Factor | 0.00 | |
| Y0 Factor | 0.49 | |
| E Factor | 0.67 | |
| Cg Factor | 0.0774 |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | Timken | |
| Material Number | 000000000100000221 | |
| World Assembly Part Number | 43125_43312-B | |
| Inner Ring Part Number | 43125 | |
| Outer Ring Part Number | 43312-B | |
| Drawing Number | A-15557 | |
| Upc | 0013992314147 | |
| Official Source System | CORE BP - DS DF | |
| Official Last Run | 2026-08-23T20:02:47.503 |
Product Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type Description | TSF - Tapered Single Flanged | |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 1.2500 in Bore | 3.1250 in OD | 1.0000 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 | 27.374 mm | |
| Radial Rating | 23,900 N | |
| Axial Rating | 27,300 N | |
| Dynamic Rating C1 | 92,000 N | |
| Dynamic Rating C90 | 23,900 N | |
| Dynamic Axial Rating Ca90 | 27,300 N | |
| Dynamic Axial Rating Ca1 | 105,000 N | |
| Static Radial Rating C0 | 76,200 N | |
| Extended Dynamic Rating Ce | 0 N | |
| Static Axial Rating C0A | 148,000 N |
