Single row tapered roller bearings

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Taper roller bearings can take both axial and radial loads. The axial load carrying capacity of the bearings is largely determined by the contact angle α as shown in the figure below. If the contact angle α is larger, then the axial load carrying capacity is higher and vice versa.

Taper roller bearings are designed in such a way that vertices of the cone for each roller and those for the inner and outer raceways coincides on the bearing axis or extensions of the raceways and rollers converge at a common point on the axis of rotation. This results in true rolling motion of the rollers on the raceways at every point along the rollers. The taper roller bearings support radial loads and axial loads from one direction only. The line contact between rollers and raceways provide the bearings with a high load carrying capacity.

Steep angle taper roller bearing with exceptionally steep cone angle enables the bearings to take heavier axial load. The bearings are of separable type, enabling separate mounting of cups and cones.

Since the taper roller bearings can absorb thrust loads in one direction only, these bearings should generally be installed as opposed mountings. The correct amount of radial and axial clearance is obtained by adjusting the two bearings against each other.

Bearing Number	Bore Dia	Outer DIa	Width	Size
NTN 4T-13620 Single row tapered roller bearings	B10724-79	92.075 mm	0.625 in	34.131 mm
NTN 4T-1280 Single row tapered roller bearings	88508	88000 Two Seals	27.00 mm	80.0000 mm
NTN 4T-12580 Single row tapered roller bearings	5	520.827 mm	438.988 mm	300.152 mm
20,638 mm x 49,225 mm x 19,845 mm NTN 4T-12580/12520 Single row tapered roller bearings	169.863 mm	2 x 5/8-11 UNC	26.7 kN	2 x LOR 45
22,225 mm x 57,15 mm x 22,225 mm NTN 4T-1280/1220 Single row tapered roller bearings	430 kN	765 mm	683 mm	0
NTN 4T-12520 Single row tapered roller bearings	0.8750 in	1.6875 in	0.5625 in	0.9375 in
NTN 4T-12303 Single row tapered roller bearings	69.400 kN	73 min	2.76 kg	6412
NTN 4T-1220 Single row tapered roller bearings	850 r/min	10 mm	473 mm	0.44
140 mm x 210 mm x 56 mm NTN 33028U Single row tapered roller bearings	N 11	14.3 mm	S 111x1.7/8	63.652 mm
120 mm x 180 mm x 48 mm NTN 33024U Single row tapered roller bearings	130.0000 mm	54.00 mm	3400 rpm	121000 N
110 mm x 170 mm x 47 mm NTN 33022U Single row tapered roller bearings	30.000 mm	62.0000 mm	One Seal & Snap-Ring	20400 N
105 mm x 160 mm x 43 mm NTN 33021U Single row tapered roller bearings	6300 rpm	5300 rpm	3400 rpm	110.0000 mm