Image 1 of 1 Solid Hub Coupling - Flange 4" | Bore 1.25" $132.62 Solid Hub Coupling - Flange 4" | Bore 1.25" Add To Cart Added! Solid Hub Coupling - Flange 4" | Bore 1.25" You Might Also Like Quick View Coupling Type, Solid ; Shaft Size, 1-1/4 inch ; Flange Diameter, 3.945 inch. $141.63 Quick View Solid Hub Coupling - Flange 5" | Bore 1.375" | M-Pilot Dia 2.25" | 4 Bo $0.01 Quick View Coupling - Flange 4" | Bore 1.00" | M-Pilot Dia 2.5" | 4 Bolt - .375" $170.65 Quick View Solid Hub Coupling - Flange 4" | Bore 1.25" | M-Pilot Dia 2" | 4 Bolt $135.19 Quick View Solid Hub Coupling - Flange 5" | Bore 1.375" $202.47