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
88345005248	N/A QF175XPB	N/A Solid in	N/A 175	N/A No Keyway in	N/A 2.67 in67.8 mm	N/A
88345043251	N/A QF175XNB	N/A Solid in	N/A 175	N/A No Keyway in	N/A 2.67 in67.8 mm	N/A
88345043334	N/A QF15XNB	N/A Solid in	N/A 15	N/A No Keyway in	N/A 1.34 in34 mm	N/A
88345005332	N/A QF25XPB	N/A Pilot 5/8 in	N/A 25	N/A No Keyway in	N/A 1.81 in46 mm	N/A
88345005296	N/A QF25S303XPB	N/A Pilot 5/8 in	N/A 25	N/A No Keyway in	N/A 1.81 in46 mm	N/A
88345005405	N/A QF50XPB	N/A Pilot 23/32 in	N/A 50	N/A No Keyway in	N/A 2.16 in54.9 mm	N/A
88345032893	N/A QF50S303XPB	N/A Pilot 23/32 in	N/A 50	N/A No Keyway in	N/A 2.16 in54.9 mm	N/A
88345005235	N/A QF15XPB	N/A Pilot 17/32 in	N/A 15	N/A No Keyway in	N/A 1.34 in34 mm	N/A
88345005205	N/A QF15S303XPB	N/A Pilot 17/32 in	N/A 15	N/A No Keyway in	N/A 1.34 in34 mm	N/A
88345096409	N/A QF100XPBTD	N/A Pilot 15/16 in	N/A 100	N/A No Keyway in	N/A 2.46 in62.5 mm	N/A
88345005178	N/A QF100XPB	N/A Pilot 15/16 in	N/A 100	N/A No Keyway in	N/A 2.46 in62.5 mm	N/A
88345005148	N/A QF100S303XPB	N/A Pilot 15/16 in	N/A 100	N/A No Keyway in	N/A 2.46 in62.5 mm	N/A
88345045657	N/A QF175XPBTDC	N/A Pilot 1" in	N/A 175	N/A No Keyway in	N/A 2.67 in67.8 mm	N/A
88345041001	N/A QF175XPBTD	N/A Pilot 1" in	N/A 175	N/A No Keyway in	N/A 2.67 in67.8 mm	N/A
88345042931	N/A QF175S303XPB	N/A Pilot 1" in	N/A 175	N/A No Keyway in	N/A 2.67 in67.8 mm	N/A
88345095970	N/A QF250S303XPB	N/A Pilot 1 1/2" in	N/A 250	N/A No Keyway in	N/A 3.1 in78.7 mm	N/A
88345005419	N/A QF5S303XPB	N/A Pilot in	N/A 5	N/A No Keyway in	N/A 1.08 in27.4 mm	N/A
88345096045	N/A QF5S303X9/16	N/A 9/16 in	N/A 5	N/A 1/8 x 1/16 in	N/A 1.08 in27.4 mm	N/A
88345044142	N/A QF175X7/8	N/A 7/8 in	N/A 175	N/A 3/16x3/32 in	N/A 2.67 in67.8 mm	N/A
88345044004	N/A QF100X7/8U	N/A 7/8 in	N/A 100	N/A 3/16x3/32 in	N/A 2.46 in62.5 mm	N/A
88345044003	N/A QF100X7/8	N/A 7/8 in	N/A 100	N/A 3/16x3/32 in	N/A 2.46 in62.5 mm	N/A
88345043708	N/A QF50X7/8U	N/A 7/8 in	N/A 50	N/A 3/16x3/32 in	N/A 2.16 in54.9 mm	N/A
88345044464	N/A QF50X7/8E	N/A 7/8 in	N/A 50	N/A 1/4x1/8 in	N/A 2.16 in54.9 mm	N/A
88345005403	N/A QF50X7/8	N/A 7/8 in	N/A 50	N/A 3/16x3/32 in	N/A 2.16 in54.9 mm	N/A
88345043690	N/A QF25X7/8U	N/A 7/8 in	N/A 25	N/A 3/16x3/32 in	N/A 1.81 in46 mm	N/A

88345005248

N/A QF175XPB

N/A Solid in

N/A 175

N/A No Keyway in

N/A 2.67 in67.8 mm

N/A

88345043251

N/A QF175XNB

N/A Solid in

N/A 175

N/A No Keyway in

N/A 2.67 in67.8 mm

N/A

88345043334

N/A QF15XNB

N/A Solid in

N/A 15

N/A No Keyway in

N/A 1.34 in34 mm

N/A

88345005332

N/A QF25XPB

N/A Pilot 5/8 in

N/A 25

N/A No Keyway in

N/A 1.81 in46 mm

N/A

88345005296

N/A QF25S303XPB

N/A Pilot 5/8 in

N/A 25

N/A No Keyway in

N/A 1.81 in46 mm

N/A

88345005405

N/A QF50XPB

N/A Pilot 23/32 in

N/A 50

N/A No Keyway in

N/A 2.16 in54.9 mm

N/A

88345032893

N/A QF50S303XPB

N/A Pilot 23/32 in

N/A 50

N/A No Keyway in

N/A 2.16 in54.9 mm

N/A

88345005235

N/A QF15XPB

N/A Pilot 17/32 in

N/A 15

N/A No Keyway in

N/A 1.34 in34 mm

N/A

88345005205

N/A QF15S303XPB

N/A Pilot 17/32 in

N/A 15

N/A No Keyway in

N/A 1.34 in34 mm

N/A

88345096409

N/A QF100XPBTD

N/A Pilot 15/16 in

N/A 100

N/A No Keyway in

N/A 2.46 in62.5 mm

N/A

88345005178

N/A QF100XPB

N/A Pilot 15/16 in

N/A 100

N/A No Keyway in

N/A 2.46 in62.5 mm

N/A

88345005148

N/A QF100S303XPB

N/A Pilot 15/16 in

N/A 100

N/A No Keyway in

N/A 2.46 in62.5 mm

N/A

88345045657

N/A QF175XPBTDC

N/A Pilot 1" in

N/A 175

N/A No Keyway in

N/A 2.67 in67.8 mm

N/A

88345041001

N/A QF175XPBTD

N/A Pilot 1" in

N/A 175

N/A No Keyway in

N/A 2.67 in67.8 mm

N/A

88345042931

N/A QF175S303XPB

N/A Pilot 1" in

N/A 175

N/A No Keyway in

N/A 2.67 in67.8 mm

N/A

88345095970

N/A QF250S303XPB

N/A Pilot 1 1/2" in

N/A 250

N/A No Keyway in

N/A 3.1 in78.7 mm

N/A

88345005419

N/A QF5S303XPB

N/A Pilot in

N/A 5

N/A No Keyway in

N/A 1.08 in27.4 mm

N/A

88345096045

N/A QF5S303X9/16

N/A 9/16 in

N/A 5

N/A 1/8 x 1/16 in

N/A 1.08 in27.4 mm

N/A

88345044142

N/A QF175X7/8

N/A 7/8 in

N/A 175

N/A 3/16x3/32 in

N/A 2.67 in67.8 mm

N/A

88345044004

N/A QF100X7/8U

N/A 7/8 in

N/A 100

N/A 3/16x3/32 in

N/A 2.46 in62.5 mm

N/A

88345044003

N/A QF100X7/8

N/A 7/8 in

N/A 100

N/A 3/16x3/32 in

N/A 2.46 in62.5 mm

N/A

88345043708

N/A QF50X7/8U

N/A 7/8 in

N/A 50

N/A 3/16x3/32 in

N/A 2.16 in54.9 mm

N/A

88345044464

N/A QF50X7/8E

N/A 7/8 in

N/A 50

N/A 1/4x1/8 in

N/A 2.16 in54.9 mm

N/A

88345005403

N/A QF50X7/8

N/A 7/8 in

N/A 50

N/A 3/16x3/32 in

N/A 2.16 in54.9 mm

N/A

88345043690

N/A QF25X7/8U

N/A 7/8 in

N/A 25

N/A 3/16x3/32 in

N/A 1.81 in46 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