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
620 mm x 800 mm x 363.5 mm skf BT4B 328510/HA1 Four-row tapered roller bearings, TQO design	1318 K	4500 r/min	EPR 11	3/8 NPT
482.6 mm x 615.95 mm x 330.2 mm skf BT4-8163 E8/C725 Four-row tapered roller bearings, TQO design	1304.1 g	4.763 mm	41.275 mm	SSAFS 536
877.888 mm x 1220 mm x 844.55 mm skf BT4B 332981/HA4 Four-row tapered roller bearings, TQO design	40	46 min	0.65 kg	52 mm
679.45 mm x 901.7 mm x 552.45 mm skf BT4B 334015 G/HA1VA901 Four-row tapered roller bearings, TQO design	Two Shields & Snap-R	100.0000 mm	25.00 mm	39000 N
304.902 mm x 412.648 mm x 266.7 mm skf BT4-0004 G/HA1 Four-row tapered roller bearings, TQO design	7600 kN	238 mm	410 mm	60 mm
279.4 mm x 393.7 mm x 269.875 mm skf BT4-0011 G/HA1C500VA901 Four-row tapered roller bearings, TQO design	W 040	HMVC 40E	199.314 mm	N 040