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 | LL788300 | |
| Variant / construction | TS - Tapered Single | |
| Bore diameter | d | 1066.8 mm |
| Outside diameter | D | 1219.2 mm |
| Width | B | 65.088 mm |
| Basic dynamic load rating | C | 1720 kN |
| Basic static load rating | C0 | 5660 kN |
| Mass | ≈m | 108.34 kg |
| Precision class | ABMA Class 4 | |
| Sealing | Open | |
| Cage | Steel cage |
Calculation Factors6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| K Factor | 1.23 | |
| Y1 Factor | 1.26 | |
| Y2 Factor | 0.00 | |
| Y0 Factor | 0.69 | |
| E Factor | 0.48 | |
| Cg Factor | 0.3922 |
Manufacturer Identity9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | Timken | |
| Material Number | 000000000100113128 | |
| World Assembly Part Number | LL788349_LL788310 | |
| Inner Ring Part Number | LL788349 | |
| Outer Ring Part Number | LL788310 | |
| Drawing Number | E-22373 | |
| Upc | 0053893688961 | |
| Official Source System | CORE BP - DS DF | |
| Official Last Run | 2026-08-23T20:02:48.497 |
Product Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type Description | TS - Tapered Single | |
| Construction | Single Row Tapered Roller Bearing Assembly | Imperial Series | 42.0000 in Bore | 48.0000 in OD | 2.5625 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 4 | |
| Number Of Rows | 1 | |
| Tapered Bore | N |
Technical Data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Overall Width | 80.088 mm | |
| Radial Rating | 445,000 N | |
| Axial Rating | 362,000 N | |
| Dynamic Rating C1 | 1,720,000 N | |
| Dynamic Rating C90 | 445,000 N | |
| Dynamic Axial Rating Ca90 | 362,000 N | |
| Dynamic Axial Rating Ca1 | 1,400,000 N | |
| Static Radial Rating C0 | 5,660,000 N | |
| Extended Dynamic Rating Ce | 0 N | |
| Static Axial Rating C0A | 7,830,000 N |