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
NSK 45 Bearing	10 mm	KM 8	M 40x1.5	58 mm
558.8 mm x 736.6 mm x 455.612 mm skf BT4B 334136 G/HA1VA901 Four-row tapered roller bearing, TQO design	10 mm	KM 8	M 40x1.5	58 mm
660.4 mm x 812.8 mm x 365.125 mm skf 331190 Four-row tapered roller bearings, TQO design	680 mm	213 mm	202 mm	5 mm
540 mm x 690 mm x 434 mm skf BT4B 334038 G/HA3 Four-row tapered roller bearings, TQO design	1800 rpm	240.0000 mm	3200 rpm	3200 rpm
440 mm x 650 mm x 353.5 mm skf BT4B 328944 G/HA1VA901 Four-row tapered roller bearings, TQO design	67000 N	74100 N	5300 rpm	26.00 mm
355.6 mm x 482.6 mm x 265.113 mm skf BT4B 328870 EX1/C300 Four-row tapered roller bearings, TQO design	53.975 mm	31.75 mm	2 x SR-1517	95.25 mm
380 mm x 560 mm x 390 mm skf BT4-8033 G/HA1 Four-row tapered roller bearings, TQO design	53 mm	25 mm	59.9 mm	35 mm
457.2 mm x 596.9 mm x 276.225 mm skf 331169 E/C500 Four-row tapered roller bearings, TQO design	23 mm	20000 r/min	12.1 kN	24000 r/min
266.7 mm x 355.6 mm x 230.188 mm skf BT4B 328209 G/HA1C455 Four-row tapered roller bearings, TQO design	1.1 mm	98.6 mm	1	0.78 kN
431.8 mm x 571.5 mm x 336.55 mm skf BT4-8170 E81/C550 Four-row tapered roller bearings, TQO design	SAF 515	60.325 mm	5.65 kN	75.6 kN
500 mm x 670 mm x 400.05 mm skf BT4-8056 G/HA1 Four-row tapered roller bearings, TQO design	77.787 mm	149.1 N·m	21.3 kg	149.225 mm
317.5 mm x 438.15 mm x 276.225 mm skf BT4B 334020 G/HA4 Four-row tapered roller bearings, TQO design	6.12 kg	24.5 mm	3 mm	110 mm