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
34.988 mm x 59.131 mm x 16.764 mm KBC L68149/L68110 tapered roller bearings	7000	No	Standard	Metric System
25 mm x 52 mm x 15 mm KBC 30205J tapered roller bearings	Steel	Flat	Radial	Punching
40 mm x 80 mm x 45 mm KBC DT408044 tapered roller bearings	133.000 mm	4.000 mm	133 mm	381.000 mm
65 mm x 105 mm x 23 mm KBC JLM710949/JLM710910 tapered roller bearings	19 mm	1.1	85 mm	49.2 mm
45.242 mm x 73.431 mm x 19.812 mm KBC LM102949/LM102910 tapered roller bearings	Flange Type	[Aluminum Alloy] 201	Single	6203
30 mm x 72 mm x 18.923 mm KBC 30306Jh tapered roller bearings	12.7 mm	17 mm	130 mm	12.8 kN
20 mm x 52 mm x 15 mm KBC 30304J tapered roller bearings	No	Flat	3600	Metric System
PFI 30307D tapered roller bearings	Stamped Steel	3050 lbf	Imperial	4.72 in
PFI 32311 tapered roller bearings	Deep Groove Ball Bea	Yes (with retaining	Bearings with Housin	10
PFI 33011 tapered roller bearings	Yes (with retaining	Single	17	Bearings with Housin
PFI P50KW01 tapered roller bearings	Ball	170	Grade 0	/2AS
PFI 32217 tapered roller bearings	6002	Bearings with Housin	Flanged Pilot Type	Deep Groove Ball Bea