The patented Deltaflex series of couplings offer maximum misalignment capabilities with negligible reactionary load, for longer equipment life. This all-metal flex-link coupling requires no lubrication or other maintenance.

Standard (Type 1, 2, or 2A) Deltaflex coupling are comprised of two hubs, an inner flange (with hardware), and an outer flange. Spacer (Type 3 & 4) Deltaflex coupling are comprised of two hubs, two spacer flanges (with hardware), and a drop out spacer.

Unlike Delta hubs, Round hubs are available in stainless steel (SS). Round hubs can also accommodate a larger max bore, but must always be mounted externally (no internal Type 1 mounting). Standard Round hubs come with two set screws at 120º.

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Item #

Description 

Bore Size 

Material

Keyway Size (W x D)

Length thru Bore

Dimension BC

Dimension HD

Dimension P

Dimension Q

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N/A 40 HUB RND SS 1" 1/4X1/8KW N/A 1 in N/A Stainless Steel N/A 1/4 x 1/8 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND SS 1-1/4 1/4X1/8KW N/A 1 1/4 in N/A Stainless Steel N/A 1/4 x 1/8 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND SS 1-1/8 1/4X1/8KW N/A 1 1/8 in N/A Stainless Steel N/A 1/4 x 1/8 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND SS 1/2 1/8X1/16KW N/A 1/2 in N/A Stainless Steel N/A 1/8 x 1/16 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND SS 3/4 3/16X3/32KW N/A 3/4 in N/A Stainless Steel N/A 3/16 x 3/32 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND SS 5/8 3/16X3/32KW N/A 5/8 in N/A Stainless Steel N/A 3/16 x 3/32 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND SS 7/8 3/16X3/32KW N/A 7/8 in N/A Stainless Steel N/A 3/16 x 3/32 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND 1-1/2 3/8X3/16KW N/A 1 1/2 in N/A Steel N/A 3/8 x 3/16 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND 1-5/8 3/8X3/16KW N/A 1 5/8 in N/A Steel N/A 3/8 x 3/16 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 40 HUB RND SS 1-3/8 5/16 KW N/A 1 3/8 in N/A Stainless Steel N/A 5/16 x 5/32 in N/A 1.34 in N/A 2.120 in53.85 mm N/A 2.560 in N/A 1.498 to 1.500 in38.049 to 38.100 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND 2" 1/2X1/4KW N/A 2 in N/A Steel N/A 1/2 x 1/4 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND 2-1/4 1/2X1/4KW N/A 2 1/4 in N/A Steel N/A 1/2 x 1/4 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND 2-1/8 1/2X1/4KW N/A 2 1/8 in N/A Steel N/A 1/2 x 1/4 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1-7/8 1/2X1/4KW N/A 1 7/8 in N/A Stainless Steel N/A 1/2 x 1/4 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1" 1/4X1/8 KW N/A 1 in N/A Stainless Steel N/A 1/4 x 1/8 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1-1/4 1/4X1/8KW N/A 1 1/4 in N/A Stainless Steel N/A 1/4 x 1/8 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1-1/8 1/4X1/8KW N/A 1 1/8 in N/A Stainless Steel N/A 1/4 x 1/8 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 3/4 3/16X3/32KW N/A 3/4 in N/A Stainless Steel N/A 3/16 x 3/32 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 5/8 3/16X3/32KW N/A 5/8 in N/A Stainless Steel N/A 3/16 x 3/32 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 7/8 3/16X3/32KW N/A 7/8 in N/A Stainless Steel N/A 3/16 x 3/32 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1-1/2 3/8X3/16K N/A 1 1/2 in N/A Stainless Steel N/A 3/8 x 3/16 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1-3/4 3/8X3/16K N/A 1 3/4 in N/A Stainless Steel N/A 3/8 x 3/16 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1-5/8 3/8X3/16K N/A 1 5/8 in N/A Stainless Steel N/A 3/8 x 3/16 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 50 HUB RND SS 1-3/8 5/16 KW N/A 1 3/8 in N/A Stainless Steel N/A 5/16 x 5/32 in N/A 1.68 in N/A 3.080 in78.23 mm N/A 3.560 in N/A 1.998 to 2.000 in50.749 to 50.800 mm N/A 0.090 in2.29 mm
N/A 60 HUB RND SS 1-7/8 1/2X1/4KW N/A 1 7/8 in N/A Stainless Steel N/A 1/2 x 1/4 in N/A 2.03 in N/A 3.880 in98.55 mm N/A 4.50 in N/A 2.623 to 2.625 in66.624 to 66.675 mm N/A 0.120 in3.05 mm
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