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

88345043073 N/A QF25S303X1-7/8 N/A 1-7/8 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345005315 N/A QF25X1-7/8 N/A 1-7/8 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345043104 N/A QF25X1-7/8E N/A 1-7/8 in N/A 25 N/A 5/8X5/16 in N/A 1.81 in46 mm N/A
88345096015 N/A QF25X1-7/8U N/A 1-7/8 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345043075 N/A QF25S303X2-1/8 N/A 2-1/8 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345095995 N/A QF25S316X2-1/8 N/A 2-1/8 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345005318 N/A QF25X2-1/8 N/A 2-1/8 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345043109 N/A QF25X2-1/8U N/A 2-1/8 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345043069 N/A QF25S303X1-3/16 N/A 1-3/16 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
88345031046 N/A QF25X1-3/16 N/A 1-3/16 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
88345043691 N/A QF25X1-3/16U N/A 1-3/16 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
88345044281 N/A QF25X1-5/16 N/A 1-5/16 in N/A 25 N/A 5/16X5/32 in N/A 1.81 in46 mm N/A
88345043072 N/A QF25S303X1-7/16 N/A 1-7/16 in N/A 25 N/A 3/8x3/16 in N/A 1.81 in46 mm N/A
88345005314 N/A QF25X1-7/16 N/A 1-7/16 in N/A 25 N/A 3/8x3/16 in N/A 1.81 in46 mm N/A
88345043692 N/A QF25X1-7/16U N/A 1-7/16 in N/A 25 N/A 3/8x3/16 in N/A 1.81 in46 mm N/A
88345043105 N/A QF25X1-9/16 N/A 1-9/16 in N/A 25 N/A 3/8x3/16 in N/A 1.81 in46 mm N/A
88345043101 N/A QF25X1-11/16 N/A 1-11/16 in N/A 25 N/A 3/8x3/16 in N/A 1.81 in46 mm N/A
88345044278 N/A QF25X1-11/16U N/A 1-11/16 in N/A 25 N/A 3/8x3/16 in N/A 1.81 in46 mm N/A
88345044262 N/A QF25S303X1-15/16 N/A 1-15/16 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345005309 N/A QF25X1-15/16 N/A 1-15/16 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345043693 N/A QF25X1-15/16U N/A 1-15/16 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345044286 N/A QF25X2-1/16 N/A 2-1/16 in N/A 25 N/A 1/2X1/4 in N/A 1.81 in46 mm N/A
88345044275 N/A QF25X1/2 N/A 1/2 in N/A 25 N/A 1/8x1/16 in N/A 1.81 in46 mm N/A
88345005322 N/A QF25X3/4 N/A 3/4 in N/A 25 N/A 3/16X3/32 in N/A 1.81 in46 mm N/A
88345044294 N/A QF25X3/4E N/A 3/4 in N/A 25 N/A 1/4x1/8 in N/A 1.81 in46 mm N/A
Unit of Measure
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