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Part Number18790-18720-B
TypeBearing
System of MeasurementInch
Bearing TypeRoller
Roller Bearing TypeTapered Roller
For Load DirectionCombined Radial and Thrust
ConstructionSingle Row
Seal TypeOpen
Cups TypeFlanged
Series18700
Bore Dia2"
Bore Dia Tolerance+0.013" to 0
Outer Dia3.3465"
Outer Dia Tolerance+0.025" to 0
Cone Width0.6875"
Cone Width Tolerance+0.076" to -0.254"
Cup Width0.5313"
Cup Width Tolerance+0.051" to -0.254"
Flange Outer Diameter(D1)3.487"
Cup Flange Width(C1)0.1406"
Flange Bearing Width(T1)0.6875"
Cone Backface ToClear Radius0.14"
Cup Backface ToClear Radius0.06"
Cone Frontface Backing Diameter2.2"
Cone Backface Backing Diameter2.44"
Cup Frontface Backing Diameter3.27"
Cage Cone Frontface Clearance0.09"
Cage Cone Backface Clearance0.02"
Effective Center Location-0.03"
Ring Material52100 Chrome Steel
Roller Material52100 Chrome Steel
Cage MaterialSteel
Dynamic Radial Load12300 lbf
Static Radial Load15200 lbf
Dynamic Radial Rating(90 Million Revolutions)(C90)3190 lbf
Dynamic Thrust Rating(90 Million Revolutions)(Ca90)2210 lbf
LubricationRequired
Temperature Range-30° to 110 °C
ABEC RatingABEC-1
Radial ClearanceStandard (Available in C3/C4/C5)
RoHSCompliant
REACHCompliant
Weight2 lb
blank
18790-18720-B TSF (Single Row Tapered Roller Bearings with Flange) (Imperial) consist of a tapered inner ring assembly and an outer ring. They have flanged outer rings so that the housing through-hole can be precisely aligned. 18790-18720-B bore dia is 2". Its out dia is 3.3465". 18790-18720-B roller material is Roller_Material. Its seal type is Seal_Bearing. The 18790-18720-B TSF (Single Row Tapered Roller Bearings with Flange) (Imperial) can bear both radial and axial loads with ease and...More

18790-18720-B TSF (Single Row Tapered Roller Bearings with Flange) (Imperial) consist of a tapered inner ring assembly and an outer ring. They have flanged outer rings so that the housing through-hole can be precisely aligned. 18790-18720-B bore dia is 2″. Its out dia is 3.3465″. 18790-18720-B roller material is Roller_Material. Its seal type is Seal_Bearing. The 18790-18720-B TSF (Single Row Tapered Roller Bearings with Flange) (Imperial) can bear both radial and axial loads with ease and provides low friction during operation even under the most severe conditions.

Typical applications include:

Mining machines, rolling mills, metallurgy, hydraulic generators, vertical generators, propeller shafts for ships, tower cranes, extruders, gear systems and transmissions, transport vehicles, port tower crane equipment, machine tool spindles, gear reducers, automobile drives, Aircraft wheels, agricultural wheels, tensioning rollers, rakes, construction and mining equipment, railway axles – etc.

General Selection Factors

Several factors must be considered for choosing tapered roller bearings. These factors include the roller material, design, shields and seals, cage, Annual Bearing Engineering Committee (ABEC) grade, radial clearance, and lubricant, etc.


Aubearing is an ISO certified Chinese bearing manufacturer and supplier. Competitive prices, 1,200,000+ SKU inventory, including internationally renowned brands such as SKF, Timken, Schaeffler (FAG, INA), NSK, KOYO, NTN, McGill, etc. Aubearing has invested in 300+ equipment, heat treatment facilities, lathes, grinders, milling machines, bearing production lines, CMMs, metallographic testers, etc. Leading Time<7 Days, MOQ=1.

Various types of ball bearings and roller bearings, size range: 1mm-2000mm. Including thin section bearings (KAYDON equivalents and 67, 68, 69 series), ceramic bearings, stainless steel bearings, deep groove ball bearings, angular contact bearings, thrust ball bearings, spherical roller bearings, cylindrical roller bearings, needle roller bearings, tapered roller bearings, precision crossed roller bearings, bushings (sleeve bearings), linear bearings, automotive wheel hub bearings and corresponding inch series.

Customization options: material (Gcr15, silicon nitride, silicon carbide, zirconium oxide, aluminum oxide, stainless steel 304, 316, 420, 440, PTFE\PEEK\nylon and other plastics), cage (brass, stamping steel, retainer), lubrication (lubricating oil, grease, high temperature resistance), clearance (C2\CN\C3\C4\C5), seal (nitrile rubber, silicone rubber, fluororubber, polypropylene rubber), shielding, etc.