QUICK FLEX Standard Hubs with Keyway - Inch (Imperial) Bores On The Timken Company

Part Number	Description	Bore Size	Coupling Size	Keyway Size (W x D)	Length thru Bore	CAD
88345005217	N/A QF15X1-1/4	N/A 1-1/4 in	N/A 15	N/A 1/4 x 1/8 in	N/A 1.34 in34 mm	N/A
88345042918	N/A QF15X1-1/4E	N/A 1-1/4 in	N/A 15	N/A 5/16 x 5/32 in	N/A 1.34 in34 mm	N/A
88345044063	N/A QF15X1-1/4SH	N/A 1-1/4 in	N/A 15	N/A 1/4 x 1/8 in	N/A 1.34 in34 mm	N/A
88345042919	N/A QF15X1-1/4U	N/A 1-1/4 in	N/A 15	N/A 1/4x1/8 in	N/A 1.34 in34 mm	N/A
88345040993	N/A QF25S303X1-1/4	N/A 1-1/4 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345043066	N/A QF25S303X1-1/4E	N/A 1-1/4 in	N/A 25	N/A 5/16x5/32 in	N/A 1.81 in46 mm	N/A
88345043067	N/A QF25S303X1-1/4U	N/A 1-1/4 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345005307	N/A QF25X1-1/4	N/A 1-1/4 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345040995	N/A QF25X1-1/4E	N/A 1-1/4 in	N/A 25	N/A 5/16x5/32 in	N/A 1.81 in46 mm	N/A
88345044277	N/A QF25X1-1/4EU	N/A 1-1/4 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345043099	N/A QF25X1-1/4U	N/A 1-1/4 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 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
88345040983	N/A QF100X1-1/4	N/A 1-1/4 in	N/A 100	N/A 1/4x1/8 in	N/A 2.46 in62.5 mm	N/A
88345042866	N/A QF100X1-1/4E	N/A 1-1/4 in	N/A 100	N/A 5/16x5/32 in	N/A 2.46 in62.5 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
88345044219	N/A QF250X1-1/4	N/A 1-1/4 in	N/A 250	N/A 1/4x1/8 in	N/A 3.1 in78.7 mm	N/A
88345005414	N/A QF5S303X1-1/8	N/A 1-1/8 in	N/A 5	N/A 1/4x1/8 in	N/A 1.08 in27.4 mm	N/A
88345005201	N/A QF15S303X1-1/8	N/A 1-1/8 in	N/A 15	N/A 1/4x1/8 in	N/A 1.34 in34 mm	N/A
88345044049	N/A QF15S303X1-1/8U	N/A 1-1/8 in	N/A 15	N/A 1/4x1/8 in	N/A 1.34 in34 mm	N/A
88345005218	N/A QF15X1-1/8	N/A 1-1/8 in	N/A 15	N/A 1/4x1/8 in	N/A 1.34 in34 mm	N/A

88345005217

N/A QF15X1-1/4

N/A 1-1/4 in

N/A 15

N/A 1/4 x 1/8 in

N/A 1.34 in34 mm

N/A

88345042918

N/A QF15X1-1/4E

N/A 1-1/4 in

N/A 15

N/A 5/16 x 5/32 in

N/A 1.34 in34 mm

N/A

88345044063

N/A QF15X1-1/4SH

N/A 1-1/4 in

N/A 15

N/A 1/4 x 1/8 in

N/A 1.34 in34 mm

N/A

88345042919

N/A QF15X1-1/4U

N/A 1-1/4 in

N/A 15

N/A 1/4x1/8 in

N/A 1.34 in34 mm

N/A

88345040993

N/A QF25S303X1-1/4

N/A 1-1/4 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345043066

N/A QF25S303X1-1/4E

N/A 1-1/4 in

N/A 25

N/A 5/16x5/32 in

N/A 1.81 in46 mm

N/A

88345043067

N/A QF25S303X1-1/4U

N/A 1-1/4 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345005307

N/A QF25X1-1/4

N/A 1-1/4 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345040995

N/A QF25X1-1/4E

N/A 1-1/4 in

N/A 25

N/A 5/16x5/32 in

N/A 1.81 in46 mm

N/A

88345044277

N/A QF25X1-1/4EU

N/A 1-1/4 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345043099

N/A QF25X1-1/4U

N/A 1-1/4 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 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

88345040983

N/A QF100X1-1/4

N/A 1-1/4 in

N/A 100

N/A 1/4x1/8 in

N/A 2.46 in62.5 mm

N/A

88345042866

N/A QF100X1-1/4E

N/A 1-1/4 in

N/A 100

N/A 5/16x5/32 in

N/A 2.46 in62.5 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

88345044219

N/A QF250X1-1/4

N/A 1-1/4 in

N/A 250

N/A 1/4x1/8 in

N/A 3.1 in78.7 mm

N/A

88345005414

N/A QF5S303X1-1/8

N/A 1-1/8 in

N/A 5

N/A 1/4x1/8 in

N/A 1.08 in27.4 mm

N/A

88345005201

N/A QF15S303X1-1/8

N/A 1-1/8 in

N/A 15

N/A 1/4x1/8 in

N/A 1.34 in34 mm

N/A

88345044049

N/A QF15S303X1-1/8U

N/A 1-1/8 in

N/A 15

N/A 1/4x1/8 in

N/A 1.34 in34 mm

N/A

88345005218

N/A QF15X1-1/8

N/A 1-1/8 in

N/A 15

N/A 1/4x1/8 in

N/A 1.34 in34 mm

N/A

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First Name ^*
Last Name ^*
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Department ^*
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Phone Number

No Preference
1
1/2
11/16
1-1/16
1-1/2
1-1/4
1-1/8
1-11/16
1-15/16
13/16
1-3/16
1-3/4
1-3/8
15/16
1-5/16
1-5/32
1-5/8
1-7/16
1-7/8
1-9/16
2
2-1/16
2-1/2
2-1/4
2-1/8
2-11/16
2-13/16
2-15/16
2-3/16
2-3/4
2-3/8
2-5/16
2-5/8
2-7/16
2-7/8
2-9/16
3
3/4
3/8
3-1/16
3-1/2
3-1/4
3-1/8
3-11/16
3-15/16
3-3/16
3-3/4
3-3/8
3-5/16
3-5/8
3-7/16
3-7/8
3-9/16
4
4-1/4
4-1/8
5/8
7/8
9/16
Pilot
Pilot 1 1/2"
Pilot 1"
Pilot 15/16
Pilot 17/32
Pilot 23/32
Pilot 5/8
Solid

No Preference
1/2 x 1/4
1/2 x1/4
1/2x1/4
1/4 x 1/8
1/4x1/8
1/8 x 1/16
1/8x1/16
1/x1/2
1x1/2
3/16 x 3/32
3/16x3/32
3/32 x 3/64
3/4x3/8
3/8 x 3/16
3/8x3/16
5/16 x 5/32
5/16x5/32
5/8x5/16
7/8x7/16
No Keyway

Bore Size (in)

Coupling Size

Keyway Size (in)

Part Number

Description

Bore Size

Coupling Size

Keyway Size (W x D)

Length thru Bore

CAD