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

88345044004 N/A QF100X7/8U N/A 7/8 in N/A 100 N/A 3/16X3/32 in N/A 2.46 in62.5 mm N/A
88345005148 N/A QF100S303XPB N/A Pilot 15/16 in N/A 100 N/A No Keyway in N/A 2.46 in62.5 mm N/A
88345005178 N/A QF100XPB N/A Pilot 15/16 in N/A 100 N/A No Keyway in N/A 2.46 in62.5 mm N/A
88345096409 N/A QF100XPBTD N/A Pilot 15/16 in N/A 100 N/A No Keyway in N/A 2.46 in62.5 mm N/A
88345044108 N/A QF175X1 N/A 1 in N/A 175 N/A 1/4x1/8 in N/A 2.67 in67.8 mm N/A
88345049411 N/A QF175S303X2 N/A 2 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345042972 N/A QF175X2 N/A 2 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345042985 N/A QF175X2U N/A 2 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345044093 N/A QF175S303X3 N/A 3 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
88345042986 N/A QF175X3 N/A 3 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
88345042999 N/A QF175X3E N/A 3 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345043224 N/A QF175X3U N/A 3 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
88345096458 N/A QF175X1-1/2 N/A 1-1/2 in N/A 175 N/A 3/8x3/16 in N/A 2.67 in67.8 mm N/A
88345096025 N/A QF175X2-1/2 N/A 2-1/2 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
88345044114 N/A QF175X2-1/2E N/A 2-1/2 in N/A 175 N/A 3/4X3/8 in N/A 2.67 in67.8 mm N/A
88345042973 N/A QF175X2-1/2U N/A 2-1/2 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
88345044094 N/A QF175S303X3-1/2 N/A 3-1/2 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345040987 N/A QF175X3-1/2 N/A 3-1/2 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345042988 N/A QF175X3-1/2U N/A 3-1/2 in N/A 175 N/A 7/8X7/16 in N/A 2.67 in67.8 mm N/A
88345042963 N/A QF175X1-1/4 N/A 1-1/4 in N/A 175 N/A 1/4x1/8 in N/A 2.67 in67.8 mm N/A
88345042966 N/A QF175X1-3/4 N/A 1-3/4 in N/A 175 N/A 3/8x3/16 in N/A 2.67 in67.8 mm N/A
88345043300 N/A QF175X1-3/4U N/A 1-3/4 in N/A 175 N/A 3/8x3/16 in N/A 2.67 in67.8 mm N/A
88345046147 N/A QF175S303X2-1/4 N/A 2-1/4 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345042974 N/A QF175X2-1/4 N/A 2-1/4 in N/A 175 N/A 1/2X1/4 in N/A 2.67 in67.8 mm N/A
88345043250 N/A QF175X2-1/4E N/A 2-1/4 in N/A 175 N/A 5/8X5/16 in N/A 2.67 in67.8 mm N/A
Unit of Measure
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