DODGEF2B-SC-100Two-Bolt Flange Bearing Unit – 1 in Shaft, Setscrew Locking, Cast Iron, 3.89 in Bolt Centres

Product Description

What this part is

Dodge F2B-SC-100 mounted ball bearing unit, Dodge part number 124173. Bearing type: Mounted ball bearing, two-bolt flange. Bore / Shaft Size: 1 in. Housing Style: Two-bolt flange, cast iron. Locking Method: Set screw. Expansion Type: Non-expansion (fixed). Closure Type: DualGuard contact seals. Insert Series: 205. Duty rating: standard duty. Item weight: 1.34 lb.

Decoding the designation

F2B — two-bolt flange housing. It bolts to a vertical face on two diagonally opposed holes, with the shaft passing through the face.

SC — setscrew locking. Setscrews in the extended inner ring clamp onto the shaft.

100 — Dodge bore code, read as whole inches and sixteenths: 1-00/16 = 1 in shaft.

124173 — Dodge stock number for this build, the number distributors order against.

Housing style and bolt pattern

Housing Style: Two-bolt flange, cast iron. Bolt Center To Center Length: 3.89 in. Bolt hole diameter: 0.4375 in (7/16 in). Overall flange length across the diagonal: 4.88 in. Overall height: 2-3/4 in. Overall depth: 1.37 in. The two mounting holes sit on the diagonal, so the whole unit fits a narrower face than a four-bolt flange of the same shaft size.

What these specs mean in practice

Bore / Shaft Size: 1 in. Dynamic Load Rating: 3,146 lb. Static Load Rating: 1,769 lb. Limiting Speed: 4,500 rpm. Relubrication: Yes. Insert Series: 205.

Setscrew locking is the quickest form to fit and to strip, and it holds well where rotation runs consistently in one direction. The DualGuard seal arrangement puts a contact lip in front of a flinger, which keeps grease in the cavity and pushes plant dust and splash away from the seal face. Expansion Type: Non-expansion — this position holds the shaft axially, so 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.

Quantity and configuration

Unit Quantity: 1 Pc. One complete two-bolt flange unit, cast iron housing and insert assembled, per unit.

Mounting data

Bore / Shaft Size: 1 in. Bolt Center To Center Length: 3.89 in. Bolt hole diameter: 0.4375 in. Overall length: 4.88 in. Overall height: 2-3/4 in. Overall depth: 1.37 in. Item weight: 1.34 lb.

Interchange guidance

MPN Variants: F2B-SC-100, F2BSC100, F2B SC 100, 124173. The insert inside is the Dodge 205-series setscrew ball bearing, so the INS-SC-100 replaces the bearing element in this housing. The F4B-SC-100 is the same shaft size and the same setscrew locking on a square four-bolt flange, which is the choice where an overhung or reversing load calls for more tilting stiffness. Dodge codes shaft size in whole inches plus sixteenths across the F2B range, so 106 is 1-3/8 in and 200 is 2 in on the same series.