Four Row Bearings

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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. Slots in the inner race spacer permit lubricant to flow from the bearing chamber to the roll neck. The inner race spacers are hardened to minimize face wear.Four-row cylindrical roller bearings are used almost exclusively for the roll necks of rolling mill stands, calenders and roller presses.

In four-row cylindrical roller bearings, the rollers are guided between integral or non-integral flanges on the outer ring. The inner ring is without flanges; axial displacement of the shaft with respect to the housing can therefore be accommodated by the bearing within certain limits.

Bearing Number	Bore Dia	Outer DIa	Width	Size
NTN CRO-3052 Four Row Bearings	3.937 Inch \| 100 Mil	Cast Steel	1 Piece Solid	Non-expansion
NTN CRO-3617 Four Row Bearings	30	8483.20.40.80	22217	5/8 Inch
NTN T-48680D/48620/48620D Four Row Bearings	1 Piece Solid	3-17T	Non-expansion	N/A
NTN CRO-8808 Four Row Bearings	0	N/A	KOYO	0.0
NTN CRO-9602 Four Row Bearings	1.276	Mounted Units &	AMI BEARINGS	0808250136193
NTN M257149D/M257110/M257110D Four Row Bearings	NSK	N/A	M06110	RHP BEARING
NTN EE275106D/275155/275156D Four Row Bearings	SCHAEFFLER GROUP	B04336	0	0.0
NTN 625944 Four Row Bearings	Round	0 °F to 185 °	5.6300 in	Eccentric Collar
NTN CRO-2252 Four Row Bearings	B04120	CONSOLIDATED BEARING	CONSOLIDATED BEARING	N/A
NTN CRO-5215 Four Row Bearings	0.8	0644075281270	Bearings	0.0
NTN M283449D/M283410/M283410D Four Row Bearings	1.181 Inch \| 30 Mill	0.787 Inch \| 20 Mill	0.27	Tapered
NTN M257248D/M257210/M257210D Four Row Bearings	AMI BEARINGS	ASAHI BEARINGS	M06110	0.0