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
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
88345040984	N/A QF15S303X1-1/4E	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
88345044054	N/A QF15S303X1E	N/A 1 in	N/A 15	N/A 5/16 x 5/32 in	N/A 1.34 in34 mm	N/A
88345044221	N/A QF250X1-3/4	N/A 1-3/4 in	N/A 250	N/A 3/8x3/16 in	N/A 3.1 in78.7 mm	N/A
88345044218	N/A QF250X1-1/2	N/A 1-1/2 in	N/A 250	N/A 3/8x3/16 in	N/A 3.1 in78.7 mm	N/A
88345044110	N/A QF175X1-11/16	N/A 1-11/16 in	N/A 175	N/A 3/8x3/16 in	N/A 2.67 in67.8 mm	N/A
88345044113	N/A QF175X1-7/16U	N/A 1-7/16 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
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
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
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
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
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
88345042868	N/A QF100X1-11/16	N/A 1-11/16 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345043729	N/A QF100X1-7/16U	N/A 1-7/16 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345043728	N/A QF100X1-7/16	N/A 1-7/16 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345043730	N/A QF100X1-5/8U	N/A 1-5/8 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345005158	N/A QF100X1-5/8	N/A 1-5/8 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345043972	N/A QF100S303X1-5/8	N/A 1-5/8 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345043731	N/A QF100X1-3/4U	N/A 1-3/4 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345005157	N/A QF100X1-3/4	N/A 1-3/4 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345042834	N/A QF100S303X1-3/4	N/A 1-3/4 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345042865	N/A QF100X1-1/2U	N/A 1-1/2 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345005156	N/A QF100X1-1/2	N/A 1-1/2 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 mm	N/A
88345096035	N/A QF100S303X1-1/2	N/A 1-1/2 in	N/A 100	N/A 3/8x3/16 in	N/A 2.46 in62.5 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

88345040984

N/A QF15S303X1-1/4E

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

88345044054

N/A QF15S303X1E

N/A 1 in

N/A 15

N/A 5/16 x 5/32 in

N/A 1.34 in34 mm

N/A

88345044221

N/A QF250X1-3/4

N/A 1-3/4 in

N/A 250

N/A 3/8x3/16 in

N/A 3.1 in78.7 mm

N/A

88345044218

N/A QF250X1-1/2

N/A 1-1/2 in

N/A 250

N/A 3/8x3/16 in

N/A 3.1 in78.7 mm

N/A

88345044110

N/A QF175X1-11/16

N/A 1-11/16 in

N/A 175

N/A 3/8x3/16 in

N/A 2.67 in67.8 mm

N/A

88345044113

N/A QF175X1-7/16U

N/A 1-7/16 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

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

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

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

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

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

88345042868

N/A QF100X1-11/16

N/A 1-11/16 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345043729

N/A QF100X1-7/16U

N/A 1-7/16 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345043728

N/A QF100X1-7/16

N/A 1-7/16 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345043730

N/A QF100X1-5/8U

N/A 1-5/8 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345005158

N/A QF100X1-5/8

N/A 1-5/8 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345043972

N/A QF100S303X1-5/8

N/A 1-5/8 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345043731

N/A QF100X1-3/4U

N/A 1-3/4 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345005157

N/A QF100X1-3/4

N/A 1-3/4 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345042834

N/A QF100S303X1-3/4

N/A 1-3/4 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345042865

N/A QF100X1-1/2U

N/A 1-1/2 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345005156

N/A QF100X1-1/2

N/A 1-1/2 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

88345096035

N/A QF100S303X1-1/2

N/A 1-1/2 in

N/A 100

N/A 3/8x3/16 in

N/A 2.46 in62.5 mm

N/A

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First 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