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
88345005160	N/A QF100X2	N/A 2 in	N/A 100	N/A 1/2x1/4 in	N/A 2.46 in62.5 mm	N/A
88345043994	N/A QF100X2E	N/A 2 in	N/A 100	N/A 5/8x5/16 in	N/A 2.46 in62.5 mm	N/A
88345043733	N/A QF100X2U	N/A 2 in	N/A 100	N/A 1/2x1/4 in	N/A 2.46 in62.5 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
88345043033	N/A QF250X2	N/A 2 in	N/A 250	N/A 1/2x1/4 in	N/A 3.1 in78.7 mm	N/A
88345044286	N/A QF25X2-1/16	N/A 2-1/16 in	N/A 25	N/A 1/2x1/4 in	N/A 1.81 in46 mm	N/A
88345043184	N/A QF50X2-1/16	N/A 2-1/16 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345044440	N/A QF50X2-1/16SH	N/A 2-1/16 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345049684	N/A QF175X2-1/16	N/A 2-1/16 in	N/A 175	N/A 1/2x1/4 in	N/A 2.67 in67.8 mm	N/A
88345095894	N/A QF50S303X2-1/2	N/A 2-1/2 in	N/A 50	N/A 5/8x5/16 in	N/A 2.16 in54.9 mm	N/A
88345096032	N/A QF100S303X2-1/2	N/A 2-1/2 in	N/A 100	N/A 5/8x5/16 in	N/A 2.46 in62.5 mm	N/A
88345005161	N/A QF100X2-1/2	N/A 2-1/2 in	N/A 100	N/A 5/8x5/16 in	N/A 2.46 in62.5 mm	N/A
88345043989	N/A QF100X2-1/2E	N/A 2-1/2 in	N/A 100	N/A 3/4x3/8 in	N/A 2.46 in62.5 mm	N/A
88345042870	N/A QF100X2-1/2U	N/A 2-1/2 in	N/A 100	N/A 5/8x5/16 in	N/A 2.46 in62.5 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
88345044224	N/A QF250X2-1/2	N/A 2-1/2 in	N/A 250	N/A 5/8x5/16 in	N/A 3.1 in78.7 mm	N/A
88345044225	N/A QF250X2-1/2U	N/A 2-1/2 in	N/A 250	N/A 5/8x5/16 in	N/A 3.1 in78.7 mm	N/A
88345040997	N/A QF25X2-1/4	N/A 2-1/4 in	N/A 25	N/A 1/2x1/4 in	N/A 1.81 in46 mm	N/A
88345095895	N/A QF50S303X2-1/4	N/A 2-1/4 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345005391	N/A QF50X2-1/4	N/A 2-1/4 in	N/A 50	N/A 1/2x1/4 in	N/A 2.16 in54.9 mm	N/A
88345044442	N/A QF50X2-1/4E	N/A 2-1/4 in	N/A 50	N/A 5/8x5/16 in	N/A 2.16 in54.9 mm	N/A

88345005160

N/A QF100X2

N/A 2 in

N/A 100

N/A 1/2x1/4 in

N/A 2.46 in62.5 mm

N/A

88345043994

N/A QF100X2E

N/A 2 in

N/A 100

N/A 5/8x5/16 in

N/A 2.46 in62.5 mm

N/A

88345043733

N/A QF100X2U

N/A 2 in

N/A 100

N/A 1/2x1/4 in

N/A 2.46 in62.5 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

88345043033

N/A QF250X2

N/A 2 in

N/A 250

N/A 1/2x1/4 in

N/A 3.1 in78.7 mm

N/A

88345044286

N/A QF25X2-1/16

N/A 2-1/16 in

N/A 25

N/A 1/2x1/4 in

N/A 1.81 in46 mm

N/A

88345043184

N/A QF50X2-1/16

N/A 2-1/16 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345044440

N/A QF50X2-1/16SH

N/A 2-1/16 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345049684

N/A QF175X2-1/16

N/A 2-1/16 in

N/A 175

N/A 1/2x1/4 in

N/A 2.67 in67.8 mm

N/A

88345095894

N/A QF50S303X2-1/2

N/A 2-1/2 in

N/A 50

N/A 5/8x5/16 in

N/A 2.16 in54.9 mm

N/A

88345096032

N/A QF100S303X2-1/2

N/A 2-1/2 in

N/A 100

N/A 5/8x5/16 in

N/A 2.46 in62.5 mm

N/A

88345005161

N/A QF100X2-1/2

N/A 2-1/2 in

N/A 100

N/A 5/8x5/16 in

N/A 2.46 in62.5 mm

N/A

88345043989

N/A QF100X2-1/2E

N/A 2-1/2 in

N/A 100

N/A 3/4x3/8 in

N/A 2.46 in62.5 mm

N/A

88345042870

N/A QF100X2-1/2U

N/A 2-1/2 in

N/A 100

N/A 5/8x5/16 in

N/A 2.46 in62.5 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

88345044224

N/A QF250X2-1/2

N/A 2-1/2 in

N/A 250

N/A 5/8x5/16 in

N/A 3.1 in78.7 mm

N/A

88345044225

N/A QF250X2-1/2U

N/A 2-1/2 in

N/A 250

N/A 5/8x5/16 in

N/A 3.1 in78.7 mm

N/A

88345040997

N/A QF25X2-1/4

N/A 2-1/4 in

N/A 25

N/A 1/2x1/4 in

N/A 1.81 in46 mm

N/A

88345095895

N/A QF50S303X2-1/4

N/A 2-1/4 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345005391

N/A QF50X2-1/4

N/A 2-1/4 in

N/A 50

N/A 1/2x1/4 in

N/A 2.16 in54.9 mm

N/A

88345044442

N/A QF50X2-1/4E

N/A 2-1/4 in

N/A 50

N/A 5/8x5/16 in

N/A 2.16 in54.9 mm

N/A

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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