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

88345043689 N/A QF25X3/4U N/A 3/4 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345095987 N/A QF25X5/8 N/A 5/8 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345043081 N/A QF25S303X7/8 N/A 7/8 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345044273 N/A QF25S303X7/8E N/A 7/8 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
88345044274 N/A QF25S303X7/8U N/A 7/8 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345005330 N/A QF25X7/8 N/A 7/8 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345043113 N/A QF25X7/8E N/A 7/8 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
88345043690 N/A QF25X7/8U N/A 7/8 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345044276 N/A QF25X11/16 N/A 11/16 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345044280 N/A QF25X15/16 N/A 15/16 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
88345044282 N/A QF25X15/16U N/A 15/16 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
88345005296 N/A QF25S303XPB N/A Pilot 5/8 in N/A 25 N/A No Keyway in N/A 1.81 in46 mm N/A
88345005332 N/A QF25XPB N/A Pilot 5/8 in N/A 25 N/A No Keyway in N/A 1.81 in46 mm N/A
88345005380 N/A QF50X1 N/A 1 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345043709 N/A QF50X1U N/A 1 in N/A 50 N/A 1/4x1/8 in N/A 2.16 in54.9 mm N/A
88345095893 N/A QF50S303X2 N/A 2 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345043253 N/A QF50S316X2U N/A 2 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345005389 N/A QF50X2 N/A 2 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345043191 N/A QF50X2U N/A 2 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345044455 N/A QF50X2UEXT N/A 2 in N/A 50 N/A 1/2X1/4 in N/A 2.16 in54.9 mm N/A
88345041075 N/A QF50S303X1-1/2 N/A 1-1/2 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345005381 N/A QF50X1-1/2 N/A 1-1/2 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345044429 N/A QF50X1-1/2NK N/A 1-1/2 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345044430 N/A QF50X1-1/2SH N/A 1-1/2 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
88345043176 N/A QF50X1-1/2U N/A 1-1/2 in N/A 50 N/A 3/8x3/16 in N/A 2.16 in54.9 mm N/A
Unit of Measure
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