Discover the New “My Dashboard” Experience

Join Eric Stasiowski, manager – online marketing & ecommerce, to see how you can save key items like documents, bearings, and distributor locations directly to your account.

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Analyze Bearing Performance in an Application with Timken ® Syber ® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

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Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

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QUICK FLEX couplings consist of two hubs, one insert, and a cover.
Unit of Measure
Items
QUICK FLEX Coupling Hub Photo

QUICK FLEX Standard Hubs with Keyway - Inch (Imperial) Bores

QUICK FLEX Coupling Hub Photo

QUICK FLEX Standard Hubs with Keyway - Inch (Imperial) Bores

QUICK FLEX Coupling Hub Photo

QUICK FLEX Standard Hubs with Keyway - Inch (Imperial) Bores

QUICK FLEX Coupling Hub Photo

QUICK FLEX Standard Hubs with Keyway - Inch (Imperial) Bores

QUICK FLEX Coupling Hub Photo

QUICK FLEX Standard Hubs with Keyway - Inch (Imperial) Bores
Description  N/A QF5S303X1 N/A QF5S303X1U N/A QF5S303X1-1/4 N/A QF5S303X1-1/4E N/A QF5S303X1-1/8
Bore Size  N/A 1 in N/A 1 in N/A 1-1/4 in N/A 1-1/4 in N/A 1-1/8 in
Hub Style N/A
Coupling Type N/A QUICK FLEX
Coupling Size N/A 5
Material N/A 303 Stainless Steel
Keyway Size (W x D) N/A 1/4x1/8 in N/A 1/4x1/8 in N/A 1/4x1/8 in N/A 5/16X5/32 in N/A 1/4x1/8 in
Length thru Bore N/A 1.08 in27.4 mm
Overall Length N/A
Color N/A Metallic
Nominal Torque N/A
Min. Bore (Dimensions ID1/ID2) N/A
Max. Bore (Dimensions ID1/ID2) N/A 1 1/4 in25.00 mm
Hub Length N/A
Max. Speed N/A
Dimension G N/A 2 in50.8 mm
Dimension SL N/A 0.88 in22.4 mm
Dimension T N/A
Rated HP at 100 rpm N/A
Rated HP at 1,200 rpm N/A
Rated HP at 1,800 rpm N/A
Rated HP at 3,600 rpm N/A
# of Jaws N/A
Elastomeric Member N/A
Weight N/A
Weight (Complete Coupling w/ Max. Bores) N/A
Weight (Complete Coupling w/ Min. Bores) N/A
Cubic inches N/A