The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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QUICK FLEX couplings consist of two hubs, one insert, and a cover.
QUICK FLEX Coupling Hub Photo
Unit of Measure
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Part Number

Description 

Bore Size 

Coupling Size

Keyway Size (W x D)

Length thru Bore

CAD

88345095894 N/A QF50S303X2-1/2 N/A 2-1/2 in N/A 50 N/A 5/8X5/16 in N/A 2.16 in54.9 mm N/A
88345043226 N/A QF50S303X1-1/4 N/A 1-1/4 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345044418 N/A QF50S303X1-1/4E N/A 1-1/4 in N/A 50 N/A 5/16X5/32 in N/A 2.16 in54.9 mm N/A
88345005382 N/A QF50X1-1/4 N/A 1-1/4 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345043177 N/A QF50X1-1/4E N/A 1-1/4 in N/A 50 N/A 5/16X5/32 in N/A 2.16 in54.9 mm N/A
88345044431 N/A QF50X1-1/4SH N/A 1-1/4 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345043712 N/A QF50X1-1/4U N/A 1-1/4 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345095892 N/A QF50S303X1-3/4 N/A 1-3/4 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345044421 N/A QF50S303X1-3/4E N/A 1-3/4 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345031035 N/A QF50X1-3/4 N/A 1-3/4 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345043180 N/A QF50X1-3/4E N/A 1-3/4 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345044434 N/A QF50X1-3/4EU N/A 1-3/4 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345043714 N/A QF50X1-3/4U N/A 1-3/4 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345095895 N/A QF50S303X2-1/4 N/A 2-1/4 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345005391 N/A QF50X2-1/4 N/A 2-1/4 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345044442 N/A QF50X2-1/4E N/A 2-1/4 in N/A 50 N/A 5/8X5/16 in N/A 2.16 in54.9 mm N/A
88345044443 N/A QF50X2-1/4NK N/A 2-1/4 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345043186 N/A QF50X2-1/4U N/A 2-1/4 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345044447 N/A QF50X2-3/4U N/A 2-3/4 in N/A 50 N/A 5/8X5/16 in N/A 2.16 in54.9 mm N/A
88345043156 N/A QF50S303X1-1/8 N/A 1-1/8 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345005383 N/A QF50X1-1/8 N/A 1-1/8 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345044432 N/A QF50X1-1/8SH N/A 1-1/8 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345043710 N/A QF50X1-1/8U N/A 1-1/8 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345043159 N/A QF50S303X1-3/8 N/A 1-3/8 in N/A 50 N/A 5/16X5/32 in N/A 2.16 in54.9 mm N/A
88345005385 N/A QF50X1-3/8 N/A 1-3/8 in N/A 50 N/A 5/16X5/32 in N/A 2.16 in54.9 mm N/A
Unit of Measure
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