tapered roller bearings

Tapered roller bearings utilize conical rollers and raceways, arranged so that the rollers and raceways meet at a common apex. The rollers are guided by contact between the large end of the roller and a rib on the inner ring. This provides high capacity for radial and single thrust loads.

We offer premium tapered roller bearings under the NTN and Bower® brand names. Most NTN and all Bower tapered roller bearings feature case-carburized components. Cups, cones, and rollers are made from case-hardened alloy steel of “Bearing Quality” to provide superior fatigue life and reliability. Precise control of heat treatment, dimensions, and surface finish of the components further contribute to reliable bearing performance. So whether you’re looking for an American-made, case-carburized inch series taper, or a metric series through-hardened variety, we have you covered with a proper fit for your application. Premium steels and heat treatments are also available for applications requiring extended life and high reliability.

Bearing Number	Bore Dia	Outer DIa	Width	Size
NTN CRO-8414 tapered roller bearings	Black Oxide Coating	94	25	Flanged Pilot Type
120 mm x 215 mm x 58 mm NTN 32224 tapered roller bearings	13,000 rpm	26.5 mm	52 mm	0.95 kN
69,987 mm x 176,212 mm x 53,183 mm NTN 4T-H916642/H916610 tapered roller bearings	49900 lb	2400 rpm	54100 lb	Mounted Bearing
28,575 mm x 62 mm x 20,638 mm NTN 4T-15112/15245 tapered roller bearings	T-Shaped	Single	Bearings with Housin	60
40 mm x 90 mm x 33 mm NTN 32308U tapered roller bearings	130 mm	18 mm	M6x1	184 mm