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 BT4-8160 E81/C400 Four-row tapered roller bearings, TQO design	15.3 kN	94.3 kN	44.45 mm	22317 EK
347.662 mm x 469.9 mm x 292.1 mm skf 331092 A Four-row tapered roller bearings, TQO design	176 kN	4000 r/min	120 mm	0.17 kg
460 mm x 625 mm x 421 mm skf BT4B 332502/HA1 Four-row tapered roller bearings, TQO design	49.00 mm	2900 rpm	2400 rpm	2.50 mm
595.312 mm x 844.55 mm x 615.95 mm skf 331300 Four-row tapered roller bearings, TQO design	0.5 m/s	45 N/mm²	76.5 mm	e7
384.175 mm x 546.1 mm x 400.05 mm skf 331149 E/C675 Four-row tapered roller bearings, TQO design	SNW 120x3.5/16	215.001 mm	81.4 kN	1/4 NPT
431.8 mm x 571.5 mm x 336.55 mm skf BT4B 331226 BG/HA1 Four-row tapered roller bearings, TQO design	Without Accessories	1200 rpm	2.00 mm	38.00 mm
280 mm x 460 mm x 324 mm skf BT4B 332441 G/HA1 Four-row tapered roller bearings, TQO design	180 kg	0.26	0.35	741 kN
660 mm x 855 mm x 318.5 mm skf BT4B 328511/HA1 Four-row tapered roller bearings, TQO design	83.8 mm	2800 r/min	80 mm	0.4
304.8 mm x 419.1 mm x 269.875 mm skf BT4-8057 G/HA1VA901 Four-row tapered roller bearings, TQO design	400 mm	HM 3188	276 mm	9 mm
650 mm x 1040 mm x 610 mm skf BT4-8037 G/HA1VA901 Four-row tapered roller bearings, TQO design	14000 rpm	11000 rpm	14000 rpm	62.0000 mm
635 mm x 901.7 mm x 654.05 mm skf BT4B 334141 G/HA1VA901 Four-row tapered roller bearings, TQO design	25 mm	55 mm	0.3 mm	2.5 mm
540 mm x 690 mm x 400 mm skf BT4-8108 E/C625 Four-row tapered roller bearings, TQO design	No Shield, no Seal,	39000 N	1.00 mm	50.000 mm