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
SNR 32005VS02H100 tapered roller bearings	4.7 in	Light Series	160 mm	013992028754
140 mm x 210 mm x 45 mm NKE 32028-X-DF tapered roller bearings	1400 rpm	0883450071222	4.03 in	4.76 in
AST 390A/394A tapered roller bearings	Flanged Pilot Type	1045 Carbon Steel	Double	Deep Groove Ball Bea
AST 749/742 tapered roller bearings	25	Available	Flange Type	1045 Carbon Steel
AST 42381/42584 tapered roller bearings	6	Steel	Standard	Cylindrical Roller
AST 29580/29520 tapered roller bearings	Flange Type	No	Compact Type	17
60 mm x 100 mm x 30 mm ISB 33112 tapered roller bearings	FC205-	7 mm	27 mm	21 mm
40 mm x 90 mm x 33 mm ISB 32308 tapered roller bearings	2.25 in	B-R1/8	2.559 in	151.00 mm
330,2 mm x 482,6 mm x 80,167 mm ISB EE526130/526190 tapered roller bearings	Deep Groove Ball Bea	Available	Yes (with retaining	Flange Type
60 mm x 130 mm x 46 mm ISB 32312 tapered roller bearings	Bearing unit	Square flange shape	15	Cylindrical Bore Set
65 mm x 140 mm x 37 mm ISB 32313 tapered roller bearings	190 mm	245 mm	57 mm	31.8 kN
90 mm x 190 mm x 43 mm FAG 30318-A tapered roller bearings	Electroless Nickel P	1045 Carbon Steel	6002	6