DodgeF4B-SXV-100Four-Bolt Square Flange Bearing Unit – 1 in Shaft, Eccentric Collar Locking, Cast Iron, Narrow Inner Ring

Product Description

What this part is: Dodge F4B-SXV-100 mounted ball bearing unit, Dodge part number 131380. Bearing type: Mounted ball bearing, four-bolt flange. Bore / Shaft Size: 1 in. Housing Style: Four-bolt square flange, cast iron. Locking Method: Eccentric collar. Expansion Type: Non-expansion (fixed). Duty rating: intermediate duty, narrow inner ring. Rolling Elements: Balls. Number Of Rows: 1. Decoding the designation: F4B — four-bolt flange housing. The square four-bolt pattern gives far more tilting stiffness than a two-bolt flange of the same shaft size, which is what an overhung or reversing load needs. SXV — Dodge eccentric collar ball bearing, narrow inner ring, intermediate duty. It sits between the light and normal-duty ranges and keeps the unit compact along the shaft. 100 — Dodge bore code, read as whole inches and sixteenths: 1-00/16 = 1 in shaft. 131380 — Dodge stock number for this build, the number distributors order against. Housing style and bolt pattern: Housing Style: Four-bolt square flange, cast iron. Four mounting holes sit on a square pattern around the bore, and the unit bolts to a vertical face with the shaft passing through it. The square pattern loads all four corners against an overturning moment, so the bearing position stays square to the shaft under a cantilevered pulley, fan wheel or agitator. What these specs mean in practice: Bore / Shaft Size: 1 in. Locking Method: Eccentric collar — the collar is bored off centre, so driving it round against the inner ring wedges the two together and grips the shaft around its full circumference. It seats and releases faster than a setscrew mount and holds firmly in the direction of rotation, which suits conveyor and fan drives that always turn the same way. Expansion Type: Non-expansion, so this position holds the shaft axially and the opposite bearing takes up thermal growth. The spherical outer race of the insert swivels in the housing seat, so angular error between shaft and mounting face is taken up at installation rather than carried as a preload on the raceways. The narrow inner ring of the SXV series keeps the unit short along the shaft where space between drive components is tight. Quantity and configuration: Unit Quantity: 1 Pc. One complete four-bolt flange unit, cast iron housing, insert and eccentric collar assembled, per unit. Mounting data: Bore / Shaft Size: 1 in. Housing Style: Four-bolt square flange, cast iron. Material: Cast iron housing, chrome steel insert. Interchange guidance: MPN Variants: F4B-SXV-100, F4BSXV100, F4B SXV 100, 131380. The F4B-SC-100, Dodge stock number 124103, is the same four-bolt flange at the same 1 in shaft on a setscrew-locking standard-duty insert. The F4B-SXR-100 is the wide inner ring, normal-duty eccentric collar build in the same housing. Dodge codes shaft size in whole inches plus sixteenths across the F4B-SXV range, so 103 is 1-3/16 in, 107 is 1-7/16 in and 108 is 1-1/2 in on the same series.