QUICK FLEX Standard Hubs with Keyway - Metric Bores On The Timken Company

Part Number	Description	Bore Size	Coupling Size	Keyway Size (mm)	Length thru Bore	CAD
88345043704	N/A QF25X35MMU	N/A 35 mm	N/A 25	N/A 10x3.3	N/A 1.81 in46 mm	N/A
88345043999	N/A QF100X35MM	N/A 35 mm	N/A 100	N/A 10x3.3	N/A 2.46 in62.5 mm	N/A
88345044131	N/A QF175X35MM	N/A 35 mm	N/A 175	N/A 10x3.3	N/A 2.67 in67.8 mm	N/A
88345031038	N/A QF50X35MM	N/A 35 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 mm	N/A
88345043720	N/A QF50X35MMU	N/A 35 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 mm	N/A
88345044296	N/A QF25X37MM	N/A 37 mm	N/A 25	N/A 10x3.3	N/A 1.81 in46 mm	N/A
88345032891	N/A QF15S303X38MM	N/A 38 mm	N/A 15	N/A 10x3.3	N/A 1.34 in34 mm	N/A
88345005230	N/A QF15X38MM	N/A 38 mm	N/A 15	N/A 10x3.3	N/A 1.34 in34 mm	N/A
88345095983	N/A QF15X38MMU	N/A 38 mm	N/A 15	N/A 10x3.3	N/A 1.34 in34 mm	N/A
88345049221	N/A QF15X38MME	N/A 38 mm	N/A 15	N/A 12 x 3.3	N/A 1.34 in34 mm	N/A
88345032988	N/A QF25X38MM	N/A 38 mm	N/A 25	N/A 10x3.3	N/A 1.81 in46 mm	N/A
88345095984	N/A QF25X38MMU	N/A 38 mm	N/A 25	N/A 10x3.3	N/A 1.81 in46 mm	N/A
88345043982	N/A QF100S303X38MM	N/A 38 mm	N/A 100	N/A 10x3.3	N/A 2.46 in62.5 mm	N/A
88345042881	N/A QF100X38MM	N/A 38 mm	N/A 100	N/A 10x3.3	N/A 2.46 in62.5 mm	N/A
88345031039	N/A QF50X38MM	N/A 38 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 mm	N/A
88345043721	N/A QF50X38MMU	N/A 38 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 mm	N/A
88345050078	N/A QF175X39MM	N/A 39 mm	N/A 175	N/A 12x3.3	N/A 2.67 in67.8 mm	N/A
88345032892	N/A QF15S303X40MM	N/A 40 mm	N/A 15	N/A 12x3.3	N/A 1.34 in34 mm	N/A
88345005231	N/A QF15X40MM	N/A 40 mm	N/A 15	N/A 12x3.3	N/A 1.34 in34 mm	N/A
88345043688	N/A QF15X40MMU	N/A 40 mm	N/A 15	N/A 12x3.3	N/A 1.34 in34 mm	N/A
88345043079	N/A QF25S303X40MM	N/A 40 mm	N/A 25	N/A 12x3.3	N/A 1.81 in46 mm	N/A
88345005326	N/A QF25X40MM	N/A 40 mm	N/A 25	N/A 12x3.3	N/A 1.81 in46 mm	N/A
88345043672	N/A QF25X40MMU	N/A 40 mm	N/A 25	N/A 12x3.3	N/A 1.81 in46 mm	N/A
88345031040	N/A QF50X40MM	N/A 40 mm	N/A 50	N/A 12x3.3	N/A 2.16 in54.9 mm	N/A
88345043192	N/A QF50X40MMU	N/A 40 mm	N/A 50	N/A 12x3.3	N/A 2.16 in54.9 mm	N/A

88345043704

N/A QF25X35MMU

N/A 35 mm

N/A 25

N/A 10x3.3

N/A 1.81 in46 mm

N/A

88345043999

N/A QF100X35MM

N/A 35 mm

N/A 100

N/A 10x3.3

N/A 2.46 in62.5 mm

N/A

88345044131

N/A QF175X35MM

N/A 35 mm

N/A 175

N/A 10x3.3

N/A 2.67 in67.8 mm

N/A

88345031038

N/A QF50X35MM

N/A 35 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 mm

N/A

88345043720

N/A QF50X35MMU

N/A 35 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 mm

N/A

88345044296

N/A QF25X37MM

N/A 37 mm

N/A 25

N/A 10x3.3

N/A 1.81 in46 mm

N/A

88345032891

N/A QF15S303X38MM

N/A 38 mm

N/A 15

N/A 10x3.3

N/A 1.34 in34 mm

N/A

88345005230

N/A QF15X38MM

N/A 38 mm

N/A 15

N/A 10x3.3

N/A 1.34 in34 mm

N/A

88345095983

N/A QF15X38MMU

N/A 38 mm

N/A 15

N/A 10x3.3

N/A 1.34 in34 mm

N/A

88345049221

N/A QF15X38MME

N/A 38 mm

N/A 15

N/A 12 x 3.3

N/A 1.34 in34 mm

N/A

88345032988

N/A QF25X38MM

N/A 38 mm

N/A 25

N/A 10x3.3

N/A 1.81 in46 mm

N/A

88345095984

N/A QF25X38MMU

N/A 38 mm

N/A 25

N/A 10x3.3

N/A 1.81 in46 mm

N/A

88345043982

N/A QF100S303X38MM

N/A 38 mm

N/A 100

N/A 10x3.3

N/A 2.46 in62.5 mm

N/A

88345042881

N/A QF100X38MM

N/A 38 mm

N/A 100

N/A 10x3.3

N/A 2.46 in62.5 mm

N/A

88345031039

N/A QF50X38MM

N/A 38 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 mm

N/A

88345043721

N/A QF50X38MMU

N/A 38 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 mm

N/A

88345050078

N/A QF175X39MM

N/A 39 mm

N/A 175

N/A 12x3.3

N/A 2.67 in67.8 mm

N/A

88345032892

N/A QF15S303X40MM

N/A 40 mm

N/A 15

N/A 12x3.3

N/A 1.34 in34 mm

N/A

88345005231

N/A QF15X40MM

N/A 40 mm

N/A 15

N/A 12x3.3

N/A 1.34 in34 mm

N/A

88345043688

N/A QF15X40MMU

N/A 40 mm

N/A 15

N/A 12x3.3

N/A 1.34 in34 mm

N/A

88345043079

N/A QF25S303X40MM

N/A 40 mm

N/A 25

N/A 12x3.3

N/A 1.81 in46 mm

N/A

88345005326

N/A QF25X40MM

N/A 40 mm

N/A 25

N/A 12x3.3

N/A 1.81 in46 mm

N/A

88345043672

N/A QF25X40MMU

N/A 40 mm

N/A 25

N/A 12x3.3

N/A 1.81 in46 mm

N/A

88345031040

N/A QF50X40MM

N/A 40 mm

N/A 50

N/A 12x3.3

N/A 2.16 in54.9 mm

N/A

88345043192

N/A QF50X40MMU

N/A 40 mm

N/A 50

N/A 12x3.3

N/A 2.16 in54.9 mm

N/A

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No Preference
10x3.3
12 x 3.3
12x3.3
14x3.8
16 x 4.3
16x4.3
18x4.4
20 x 4.9
20x4.9
22 x 5.4
22x5.4
25x5.4
28x6.4
32x7.4
36x8.4
3x1.4
40x9.4
45x10.4
4x1.8
50x11.4
56x12.4
5x2.3
6x2.8
8 x 3.3
8x3.3

Bore Size (mm)

Coupling Size

Keyway Size

Part Number

Description

Bore Size

Coupling Size

Keyway Size (mm)

Length thru Bore

CAD