Tapered Roller Bearing Assemblies
Tapered roller bearing cones and assemblies with a double row design can have three basic arrangements. The face-to-face (TDI) configuration joins the load lines toward the axis, the back-to-back (TDO) configuration separates the load lines toward the axis, and the tandem configuration sets the load lines parallel to one another.
The proper adjustment of the two bearings in the hub assembly is one of the most important aspects of the installation process. Excessive tightening of the adjustment nut, otherwise known as excessive preload, can cause the type of rapid deep spalling shown in these pictures.

- TIMKEN EE234156-30483/234215-30038 Tapered Roller Bearing Assemblies
- 0.053 to 0.102 mm
- 188 mm

- TIMKEN EE234156-902A5 Tapered Roller Bearing Assemblies
- 207 kN
- 115.888 mm

- TIMKEN EE234156-902A3 Tapered Roller Bearing Assemblies
- Shield
- 3000 rpm

- TIMKEN HM624749-902A4 Tapered Roller Bearing Assemblies
- 0.036 kg
- 20.5 mm

- TIMKEN EE234156-90149 Tapered Roller Bearing Assemblies
- 130 mm
- 163 mm

- TIMKEN EE234156-902A2 Tapered Roller Bearing Assemblies
- 5,000 rpm
- 125.7 mm

- TIMKEN EE234156-90138 Tapered Roller Bearing Assemblies
- 110 mm
- Double Shield

- TIMKEN EE234156-20000/234220-20000 Tapered Roller Bearing Assemblies
- Steel
- Grip Tight Ball Bear