Four-row tapered roller bearings, TQO design

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Depending on their design, four-row tapered roller bearings provide the following main features and benefits: Long service life The four-cup design (four separate outer rings) provides optimal load distribution over all four rows of rollers. Enhanced operational reliability.Design Attributes: Two tapered-bore single cones, one tapered-bore double cone, four single cups and three cup spacers. Front faces of single cones and both faces of double cone are extended to contact each other. Tapered cone bores are matched for continuous taper through the cones.

For metric-design medium-angle and steep-angle tapered roller bearings, the respective contact angle symbol C or D is added after the bore number. For normal-angle tapered roller bearings, no contact angle symbol is used. Medium-angle tapered roller bearings are primarily used for the pinion shafts of differential gears of automobiles.

Bearing Number	Bore Dia	Outer DIa	Width	Size
710 mm x 900 mm x 410 mm skf 331351 Four-row tapered roller bearings, TQO design	51200 N	1.00 mm	5000 rpm	85.0000 mm
343.052 mm x 457.098 mm x 254 mm skf BT4B 328817 E1/C475 Four-row tapered roller bearings, TQO design	70.000 mm	55900 N	71000 N	110.0000 mm
440 mm x 650 mm x 353.5 mm skf 332313 Four-row tapered roller bearings, TQO design	9 mm	106 mm	225.280 kN	1440 kN
863.6 mm x 1181.1 mm x 666.75 mm skf BT4B 331649/HA4 Four-row tapered roller bearings, TQO design	1.00 mm	17.00 mm	12000 rpm	19000 N
650 mm x 1030 mm x 560 mm skf BT4B 332827 AG/HA1 Four-row tapered roller bearings, TQO design	1.00 mm	6000 rpm	72.0000 mm	8000 rpm
1070 mm x 1400 mm x 889.762 mm skf BT4B 328100/HA4 Four-row tapered roller bearings, TQO design	14000 rpm	9.00 mm	30.000 mm	5000 N
475 mm x 600 mm x 368 mm skf BT4B 328913 BG/HA1C555 Four-row tapered roller bearings, TQO design	230 kN	32.7 kN	463.55 mm	63.5 mm
304.8 mm x 495.3 mm x 342.9 mm skf BT4-8061 G/HA1C400VA901 Four-row tapered roller bearings, TQO design	22236 CCK/W33	319.999 mm	8	4.763 mm
240 mm x 338 mm x 248 mm skf BT4-0020/HA1 Four-row tapered roller bearings, TQO design	21.431 mm	149.1 N·m	7.83 kN	2 x 5/8-11 UNC
750 mm x 1130 mm x 690 mm skf BT4B 328376/HA4 Four-row tapered roller bearings, TQO design	70 mm	124 °	1.35 kg	e7
558.8 mm x 736.6 mm x 409.575 mm skf BT4B 330993 AG/HA1 Four-row tapered roller bearings, TQO design	27	1 mm	133 N/µm	5.2 mm
177.8 mm x 247.65 mm x 192.088 mm skf BT4-0010 G/HA1C400VA903 Four-row tapered roller bearings, TQO design	0.875 in	47.625 mm	3/8 NPT	222.25 mm