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
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
88345043081	N/A QF25S303X7/8	N/A 7/8 in	N/A 25	N/A 3/16x3/32 in	N/A 1.81 in46 mm	N/A
88345043098	N/A QF25X1-1/2E	N/A 1-1/2 in	N/A 25	N/A 1/2 x1/4 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
88345043100	N/A QF25X1-1/8U	N/A 1-1/8 in	N/A 25	N/A 1/4x1/8 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
88345043102	N/A QF25X1-3/8EU	N/A 1-3/8 in	N/A 25	N/A 5/16x5/32 in	N/A 1.81 in46 mm	N/A
88345043103	N/A QF25X1-5/8U	N/A 1-5/8 in	N/A 25	N/A 3/8x3/16 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
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
88345043107	N/A QF25X1U	N/A 1 in	N/A 25	N/A 1/4x1/8 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
88345043113	N/A QF25X7/8E	N/A 7/8 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345043156	N/A QF50S303X1-1/8	N/A 1-1/8 in	N/A 50	N/A 1/4x1/8 in	N/A 2.16 in54.9 mm	N/A
88345043159	N/A QF50S303X1-3/8	N/A 1-3/8 in	N/A 50	N/A 5/16x5/32 in	N/A 2.16 in54.9 mm	N/A
88345043160	N/A QF50S303X1-5/8	N/A 1-5/8 in	N/A 50	N/A 3/8x3/16 in	N/A 2.16 in54.9 mm	N/A
88345043161	N/A QF50S303X1-7/16	N/A 1-7/16 in	N/A 50	N/A 3/8x3/16 in	N/A 2.16 in54.9 mm	N/A
88345043162	N/A QF50S303X1-7/8	N/A 1-7/8 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345043163	N/A QF50S303X2-3/8	N/A 2-3/8 in	N/A 50	N/A 5/8x5/16 in	N/A 2.16 in54.9 mm	N/A
88345043176	N/A QF50X1-1/2U	N/A 1-1/2 in	N/A 50	N/A 3/8x3/16 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
88345043179	N/A QF50X1-15/16U	N/A 1-15/16 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345043180	N/A QF50X1-3/4E	N/A 1-3/4 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345043181	N/A QF50X1-3/8U	N/A 1-3/8 in	N/A 50	N/A 5/16x5/32 in	N/A 2.16 in54.9 mm	N/A
88345043182	N/A QF50X1-5/8U	N/A 1-5/8 in	N/A 50	N/A 3/8x3/16 in	N/A 2.16 in54.9 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

88345043081

N/A QF25S303X7/8

N/A 7/8 in

N/A 25

N/A 3/16x3/32 in

N/A 1.81 in46 mm

N/A

88345043098

N/A QF25X1-1/2E

N/A 1-1/2 in

N/A 25

N/A 1/2 x1/4 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

88345043100

N/A QF25X1-1/8U

N/A 1-1/8 in

N/A 25

N/A 1/4x1/8 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

88345043102

N/A QF25X1-3/8EU

N/A 1-3/8 in

N/A 25

N/A 5/16x5/32 in

N/A 1.81 in46 mm

N/A

88345043103

N/A QF25X1-5/8U

N/A 1-5/8 in

N/A 25

N/A 3/8x3/16 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

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

88345043107

N/A QF25X1U

N/A 1 in

N/A 25

N/A 1/4x1/8 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

88345043113

N/A QF25X7/8E

N/A 7/8 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345043156

N/A QF50S303X1-1/8

N/A 1-1/8 in

N/A 50

N/A 1/4x1/8 in

N/A 2.16 in54.9 mm

N/A

88345043159

N/A QF50S303X1-3/8

N/A 1-3/8 in

N/A 50

N/A 5/16x5/32 in

N/A 2.16 in54.9 mm

N/A

88345043160

N/A QF50S303X1-5/8

N/A 1-5/8 in

N/A 50

N/A 3/8x3/16 in

N/A 2.16 in54.9 mm

N/A

88345043161

N/A QF50S303X1-7/16

N/A 1-7/16 in

N/A 50

N/A 3/8x3/16 in

N/A 2.16 in54.9 mm

N/A

88345043162

N/A QF50S303X1-7/8

N/A 1-7/8 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345043163

N/A QF50S303X2-3/8

N/A 2-3/8 in

N/A 50

N/A 5/8x5/16 in

N/A 2.16 in54.9 mm

N/A

88345043176

N/A QF50X1-1/2U

N/A 1-1/2 in

N/A 50

N/A 3/8x3/16 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

88345043179

N/A QF50X1-15/16U

N/A 1-15/16 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345043180

N/A QF50X1-3/4E

N/A 1-3/4 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345043181

N/A QF50X1-3/8U

N/A 1-3/8 in

N/A 50

N/A 5/16x5/32 in

N/A 2.16 in54.9 mm

N/A

88345043182

N/A QF50X1-5/8U

N/A 1-5/8 in

N/A 50

N/A 3/8x3/16 in

N/A 2.16 in54.9 mm

N/A

This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.

Email ^*
First Name ^*
Last Name ^*
Company ^*
Department ^*
Country ^*
Zip/Postal Code ^*
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