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

88345042975 N/A QF175X2-1/4U N/A 2-1/4 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345044090 N/A QF175S303X2-3/4 N/A 2-3/4 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
88345096408 N/A QF175X2-3/4 N/A 2-3/4 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
88345042979 N/A QF175X2-3/4U N/A 2-3/4 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
88345044095 N/A QF175S303X3-1/4 N/A 3-1/4 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
88345042989 N/A QF175X3-1/4 N/A 3-1/4 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
88345095312 N/A QF175X3-1/4E N/A 3-1/4 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345096043 N/A QF175X3-1/4U N/A 3-1/4 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
88345044098 N/A QF175S303X3-3/4 N/A 3-3/4 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345042993 N/A QF175X3-3/4 N/A 3-3/4 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345042994 N/A QF175X3-3/4E N/A 3-3/4 in N/A 175 N/A 1x1/2 in N/A 2.67 in67.8 mm N/A
88345044127 N/A QF175X3-3/4U N/A 3-3/4 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345044109 N/A QF175X1-1/8 N/A 1-1/8 in N/A 175 N/A 1/4x1/8 in N/A 2.67 in67.8 mm N/A
88345044112 N/A QF175X1-3/8 N/A 1-3/8 in N/A 175 N/A 5/16X5/32 in N/A 2.67 in67.8 mm N/A
88345042967 N/A QF175X1-3/8U N/A 1-3/8 in N/A 175 N/A 5/16X5/32 in N/A 2.67 in67.8 mm N/A
88345044087 N/A QF175S303X1-5/8 N/A 1-5/8 in N/A 175 N/A 3/8x3/16 in N/A 2.67 in67.8 mm N/A
88345042968 N/A QF175X1-5/8 N/A 1-5/8 in N/A 175 N/A 3/8x3/16 in N/A 2.67 in67.8 mm N/A
88345042969 N/A QF175X1-5/8U N/A 1-5/8 in N/A 175 N/A 3/8x3/16 in N/A 2.67 in67.8 mm N/A
88345042970 N/A QF175X1-7/8 N/A 1-7/8 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345042971 N/A QF175X1-7/8U N/A 1-7/8 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345096026 N/A QF175X2-1/8 N/A 2-1/8 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345044115 N/A QF175X2-1/8U N/A 2-1/8 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345095864 N/A QF175S303X2-3/8 N/A 2-3/8 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
88345096001 N/A QF175X2-3/8 N/A 2-3/8 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
88345044120 N/A QF175X2-3/8E N/A 2-3/8 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
Unit of Measure
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