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
406.4 mm x 546.1 mm x 288.925 mm skf BT4B 328838 BG/HA1VA902 Four-row tapered roller bearings, TQO design	6000 rpm	24.00 mm	5000 rpm	70.000 mm
825.5 mm x 1168.4 mm x 844.55 mm skf BT4B 331066 A/HA4 Four-row tapered roller bearings, TQO design	23.813 mm	N 06	S 6x15/16	W 06
406.4 mm x 546.1 mm x 330 mm skf BT4B 334093 G/HA1VA901 Four-row tapered roller bearings, TQO design	1.00 mm	2.00 mm	245000 N	3400 rpm
482.6 mm x 647.7 mm x 417.512 mm skf BT4B 331259 BG/HA1C325 Four-row tapered roller bearings, TQO design	BC4.1/W33GWI	401 mm	520 mm	467.95 mm
901.7 mm x 1295.4 mm x 901.7 mm skf 330903 A Four-row tapered roller bearings, TQO design	150.0000 mm	28.00 mm	One Shield	5000 rpm
409.575 mm x 546.1 mm x 334.962 mm skf BT4B 329004 E1/C575 Four-row tapered roller bearings, TQO design	304.8 mm	6	381.127 mm	HMVC 64E
406.4 mm x 546.1 mm x 288.925 mm skf BT4-8161 E8/C500 Four-row tapered roller bearings, TQO design	36.9 kN	0.6 mm	0.6 mm	58 mm
380 mm x 620 mm x 368 mm skf BT4B 332889/HA1 Four-row tapered roller bearings, TQO design	0.3 mm	12.5 mm	13 mm	0.0052 kg
625 mm x 815 mm x 480 mm skf BT4-8031 E/C800 Four-row tapered roller bearings, TQO design	25.4 mm	4.4 kg	22.479 mm	12
482.6 mm x 615.95 mm x 406.4 mm skf BT4B 328887 G/HA1VA901 Four-row tapered roller bearings, TQO design	EPR 7	18.2 kN	219.075 mm	37.008 mm
609.6 mm x 787.4 mm x 361.95 mm skf BT4B 328871 BG/HA1VA902 Four-row tapered roller bearings, TQO design	109.5 mm	130.0 mm	11.5 mm	Stainless Steel
350 mm x 480 mm x 420 mm skf BT4-8117 E1/C475 Four-row tapered roller bearings, TQO design	2280 N·m	120 mm	203 mm	2 x TK 76