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 | M612900 | |
| Variant / construction | TS - Tapered Single | |
| Bore diameter | d | 70 mm |
| Outside diameter | D | 115 mm |
| Width | B | 29 mm |
| Basic dynamic load rating | C | 178 kN |
| Basic static load rating | C0 | 198 kN |
| Mass | ≈m | 1.12 kg |
| Precision class | ABMA Class C | |
| Sealing | Open | |
| Cage | Steel cage |
Calculation Factors6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| K Factor | 1.36 | |
| Y1 Factor | 1.39 | |
| Y2 Factor | 0.00 | |
| Y0 Factor | 0.77 | |
| E Factor | 0.43 | |
| Cg Factor | 0.1122 |
Manufacturer Identity8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Brand | Timken | |
| Material Number | 000000000100085463 | |
| World Assembly Part Number | JM612949_JM612910 | |
| Inner Ring Part Number | JM612949 | |
| Outer Ring Part Number | JM612910 | |
| Drawing Number | A-35615 | |
| Official Source System | CORE BP - DS DF | |
| Official Last Run | 2026-08-23T20:02:47.583 |
Product Identity4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Type Description | TS - Tapered Single | |
| Construction | Precision Tapered Roller Bearing Assembly | Imperial Series | 2.7559 in Bore | 4.5276 in OD | 1.1417 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class C | |
| Number Of Rows | 1 | |
| Tapered Bore | N |
Technical Data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Overall Width | 32.300 mm | |
| Radial Rating | 46,100 N | |
| Axial Rating | 33,900 N | |
| Dynamic Rating C1 | 178,000 N | |
| Dynamic Rating C90 | 46,100 N | |
| Dynamic Axial Rating Ca90 | 33,900 N | |
| Dynamic Axial Rating Ca1 | 131,000 N | |
| Static Radial Rating C0 | 198,000 N | |
| Extended Dynamic Rating Ce | 0 N | |
| Static Axial Rating C0A | 248,000 N |
