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
384.175 mm x 546.1 mm x 400.05 mm skf 331149 A Four-row tapered roller bearings, TQO design	6.5 kN	0.99	0.54 cm³	0.41
1080 mm x 1450 mm x 950 mm skf BT4B 331559/HA4 Four-row tapered roller bearings, TQO design	31.75 mm	0.003 mm	76.200 mm	25500 N
863.6 mm x 1219.1 mm x 876.3 mm skf BT4B 330742 A/HA4 Four-row tapered roller bearings, TQO design	0.30 mm	12500 N	20000 rpm	20.00 mm
409.575 mm x 546.1 mm x 334.962 mm skf BT4-8166 E8/C350 Four-row tapered roller bearings, TQO design	2800 rpm	153000 N	2000 rpm	2800 rpm
650 mm x 1030 mm x 560 mm skf BT4B 332827 E/C850 Four-row tapered roller bearings, TQO design	168000 N	260.0000 mm	Two Shields	42.00 mm
571.5 mm x 812.8 mm x 593.725 mm skf BT4B 332666/HA1 Four-row tapered roller bearings, TQO design	0.025	0.15 mm	6 mm	0.15 mm
380 mm x 736.676 mm x 300 mm skf BT4-8086 G/HA1 Four-row tapered roller bearings, TQO design	215.9 mm	42.862 mm	419.1 mm	23048 CCK/W33
206.375 mm x 282.575 mm x 190.5 mm skf BT4-0013 G/HA1C400VA903 Four-row tapered roller bearings, TQO design	320 N	4.3 kN	1.08	65 N/µm
1001 mm x 1360 mm x 800 mm skf BT4B 334031/HA4C1800 Four-row tapered roller bearings, TQO design	17.9 kg	240 mm	8 mm	320 mm
343.052 mm x 457.098 mm x 323.85 mm skf BT4B 328986 G/HA1VA901 Four-row tapered roller bearings, TQO design	540 mm	1010 kN	2900 kN	1000 r/min
254 mm x 358.775 mm x 269.875 mm skf 331275 B Four-row tapered roller bearings, TQO design	2800 rpm	No Shield, no Seal,	2800 rpm	3800 rpm
595.312 mm x 844.55 mm x 615.95 mm skf BT4B 331300 E/C775 Four-row tapered roller bearings, TQO design	3000 rpm	34.00 mm	1.00 mm	2.00 mm