Four-Row Tapered Roller Bearings

Four-row bearings provide maximum capacity in minimum space, combining the inherent high-load, radial/thrust capacity and direct/indirect mounting variables of tapered roller bearings.

Their main application is on the roll necks of rolling mill equipment. All four-row bearings are supplied as pre-set matched assemblies with all components identified to ensure correct installation sequence.

TQO (Straight Bore Four-Row Assembly) >

TQO bearings are directly mounted and comprised of two double inner races, two single and one double outer race, with an inner race spacer and two outer race spacers.

TQOW (Straight Bore with Cone Face Lubrication Slots) >

TQOW bearings are similar to TQO bearings. When the fillet and/or filler rings do not already have lubrication slots, they are provided in the faces of the bearing inner races.

TQIT (Tapered Bore Four-Row Assembly) >

TQIT bearings allow for an interference fit on the backup rolls of high-speed mills, providing optimum stability and roll rigidity.

SRNB (Sealed Four-Row Bearing) >

Timken® Sealed Roll Neck Bearings (SRNBs) reflect the strengths of the Timken brand: superior materials, proven bearing designs and the latest in bearing and seal technology.