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
88345005384	N/A QF50X1-15/16	N/A 1-15/16 in	N/A 50	N/A 1/2x1/4 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
88345043970	N/A QF100S303X1-15/16	N/A 1-15/16 in	N/A 100	N/A 1/2x1/4 in	N/A 2.46 in62.5 mm	N/A
88345031048	N/A QF100X1-15/16	N/A 1-15/16 in	N/A 100	N/A 1/2x1/4 in	N/A 2.46 in62.5 mm	N/A
88345043732	N/A QF100X1-15/16U	N/A 1-15/16 in	N/A 100	N/A 1/2x1/4 in	N/A 2.46 in62.5 mm	N/A
88345042964	N/A QF175X1-15/16	N/A 1-15/16 in	N/A 175	N/A 1/2x1/4 in	N/A 2.67 in67.8 mm	N/A
88345044470	N/A QF5S303X13/16	N/A 13/16 in	N/A 5	N/A 3/16 x 3/32 in	N/A 1.08 in27.4 mm	N/A
88345005415	N/A QF5S303X1-3/16	N/A 1-3/16 in	N/A 5	N/A 1/4x1/8 in	N/A 1.08 in27.4 mm	N/A
88345032879	N/A QF15S303X1-3/16	N/A 1-3/16 in	N/A 15	N/A 1/4x1/8 in	N/A 1.34 in34 mm	N/A
88345005219	N/A QF15X1-3/16	N/A 1-3/16 in	N/A 15	N/A 1/4x1/8 in	N/A 1.34 in34 mm	N/A
88345043675	N/A QF15X1-3/16U	N/A 1-3/16 in	N/A 15	N/A 1/4x1/8 in	N/A 1.34 in34 mm	N/A
88345043069	N/A QF25S303X1-3/16	N/A 1-3/16 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345031046	N/A QF25X1-3/16	N/A 1-3/16 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345043691	N/A QF25X1-3/16U	N/A 1-3/16 in	N/A 25	N/A 1/4x1/8 in	N/A 1.81 in46 mm	N/A
88345031034	N/A QF50X1-3/16	N/A 1-3/16 in	N/A 50	N/A 1/4x1/8 in	N/A 2.16 in54.9 mm	N/A
88345043711	N/A QF50X1-3/16U	N/A 1-3/16 in	N/A 50	N/A 1/4x1/8 in	N/A 2.16 in54.9 mm	N/A
88345043070	N/A QF25S303X1-3/4	N/A 1-3/4 in	N/A 25	N/A 3/8x3/16 in	N/A 1.81 in46 mm	N/A
88345049978	N/A QF25S303X1-3/4E	N/A 1-3/4 in	N/A 25	N/A 1/2x1/4 in	N/A 1.81 in46 mm	N/A
88345005310	N/A QF25X1-3/4	N/A 1-3/4 in	N/A 25	N/A 3/8x3/16 in	N/A 1.81 in46 mm	N/A
88345040996	N/A QF25X1-3/4E	N/A 1-3/4 in	N/A 25	N/A 1/2x1/4 in	N/A 1.81 in46 mm	N/A
88345096030	N/A QF25X1-3/4U	N/A 1-3/4 in	N/A 25	N/A 3/8x3/16 in	N/A 1.81 in46 mm	N/A
88345095892	N/A QF50S303X1-3/4	N/A 1-3/4 in	N/A 50	N/A 3/8x3/16 in	N/A 2.16 in54.9 mm	N/A
88345044421	N/A QF50S303X1-3/4E	N/A 1-3/4 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345031035	N/A QF50X1-3/4	N/A 1-3/4 in	N/A 50	N/A 3/8x3/16 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

88345005384

N/A QF50X1-15/16

N/A 1-15/16 in

N/A 50

N/A 1/2x1/4 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

88345043970

N/A QF100S303X1-15/16

N/A 1-15/16 in

N/A 100

N/A 1/2x1/4 in

N/A 2.46 in62.5 mm

N/A

88345031048

N/A QF100X1-15/16

N/A 1-15/16 in

N/A 100

N/A 1/2x1/4 in

N/A 2.46 in62.5 mm

N/A

88345043732

N/A QF100X1-15/16U

N/A 1-15/16 in

N/A 100

N/A 1/2x1/4 in

N/A 2.46 in62.5 mm

N/A

88345042964

N/A QF175X1-15/16

N/A 1-15/16 in

N/A 175

N/A 1/2x1/4 in

N/A 2.67 in67.8 mm

N/A

88345044470

N/A QF5S303X13/16

N/A 13/16 in

N/A 5

N/A 3/16 x 3/32 in

N/A 1.08 in27.4 mm

N/A

88345005415

N/A QF5S303X1-3/16

N/A 1-3/16 in

N/A 5

N/A 1/4x1/8 in

N/A 1.08 in27.4 mm

N/A

88345032879

N/A QF15S303X1-3/16

N/A 1-3/16 in

N/A 15

N/A 1/4x1/8 in

N/A 1.34 in34 mm

N/A

88345005219

N/A QF15X1-3/16

N/A 1-3/16 in

N/A 15

N/A 1/4x1/8 in

N/A 1.34 in34 mm

N/A

88345043675

N/A QF15X1-3/16U

N/A 1-3/16 in

N/A 15

N/A 1/4x1/8 in

N/A 1.34 in34 mm

N/A

88345043069

N/A QF25S303X1-3/16

N/A 1-3/16 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345031046

N/A QF25X1-3/16

N/A 1-3/16 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345043691

N/A QF25X1-3/16U

N/A 1-3/16 in

N/A 25

N/A 1/4x1/8 in

N/A 1.81 in46 mm

N/A

88345031034

N/A QF50X1-3/16

N/A 1-3/16 in

N/A 50

N/A 1/4x1/8 in

N/A 2.16 in54.9 mm

N/A

88345043711

N/A QF50X1-3/16U

N/A 1-3/16 in

N/A 50

N/A 1/4x1/8 in

N/A 2.16 in54.9 mm

N/A

88345043070

N/A QF25S303X1-3/4

N/A 1-3/4 in

N/A 25

N/A 3/8x3/16 in

N/A 1.81 in46 mm

N/A

88345049978

N/A QF25S303X1-3/4E

N/A 1-3/4 in

N/A 25

N/A 1/2x1/4 in

N/A 1.81 in46 mm

N/A

88345005310

N/A QF25X1-3/4

N/A 1-3/4 in

N/A 25

N/A 3/8x3/16 in

N/A 1.81 in46 mm

N/A

88345040996

N/A QF25X1-3/4E

N/A 1-3/4 in

N/A 25

N/A 1/2x1/4 in

N/A 1.81 in46 mm

N/A

88345096030

N/A QF25X1-3/4U

N/A 1-3/4 in

N/A 25

N/A 3/8x3/16 in

N/A 1.81 in46 mm

N/A

88345095892

N/A QF50S303X1-3/4

N/A 1-3/4 in

N/A 50

N/A 3/8x3/16 in

N/A 2.16 in54.9 mm

N/A

88345044421

N/A QF50S303X1-3/4E

N/A 1-3/4 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345031035

N/A QF50X1-3/4

N/A 1-3/4 in

N/A 50

N/A 3/8x3/16 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

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First Name ^*
Last Name ^*
Company ^*
Department ^*
Country ^*
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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