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
343.052 mm x 457.098 mm x 254 mm skf BT4B 334033 G/HA1VA901 Four-row tapered roller bearings, TQO design	5 mm	16.5 N·m	49.2 mm	143 mm
685.8 mm x 876.3 mm x 352.425 mm skf BT4B 331089 A/HA4 Four-row tapered roller bearings, TQO design	2400 r/min	144 mm	133.5 mm	2.15 kg
558.8 mm x 736.6 mm x 322.265 mm skf 331165 A Four-row tapered roller bearings, TQO design	16000 rpm	16000 rpm	11000 rpm	19000 rpm
679.45 mm x 901.7 mm x 552.45 mm skf BT4B 331700 AG/HA4 Four-row tapered roller bearings, TQO design	39.69 mm	1.50 mm	5000 rpm	44000 N
711.2 mm x 914.4 mm x 390 mm skf BT4-8139 G/HA1 Four-row tapered roller bearings, TQO design	7930 N	14.00 mm	44000 rpm	67000 rpm
482.6 mm x 615.95 mm x 420 mm skf BT4-8062 G/HA1VA901 Four-row tapered roller bearings, TQO design	16.5 mm	35 mm	30 mm	0.3 mm
635 mm x 901.7 mm x 654.05 mm skf 330990 A Four-row tapered roller bearings, TQO design	1.5 mm	0.3	75 mm	7.2 mm
431.8 mm x 571.5 mm x 336.55 mm skf BT4B 331226/HA1 Four-row tapered roller bearings, TQO design	4 mm	261.4 mm	130 mm	0.6
406.4 mm x 546.1 mm x 330 mm skf BT4B 334093 BG/HA1VA902 Four-row tapered roller bearings, TQO design	9750 N	47.0000 mm	0.30 mm	7100 N
482.6 mm x 615.95 mm x 419.1 mm skf BT4B 334072 BG/HA1VA903 Four-row tapered roller bearings, TQO design	55 mm	76.4 kN	23 mm	1.5 mm
343.052 mm x 457.149 mm x 254 mm skf 330661 E/C475 Four-row tapered roller bearings, TQO design	FYTB 505 M/VZ033	45 °	81 mm	M5
558.8 mm x 736.6 mm x 322.262 mm skf BT4B 328864 G/HA4VA901 Four-row tapered roller bearings, TQO design	18 km/h	M12x1.25	300 mm	100 N·m