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
88345043686	N/A QF15X34MM	N/A 34 mm	N/A 15	N/A 10x3.3	N/A 1.34 in34 mm	N/A
88345043687	N/A QF15X34MMU	N/A 34 mm	N/A 15	N/A 10x3.3	N/A 1.34 in34 mm	N/A
88345031033	N/A QF15X35MM	N/A 35 mm	N/A 15	N/A 10x3.3	N/A 1.34 in34 mm	N/A
88345043214	N/A QF15X35MMU	N/A 35 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
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
88345095983	N/A QF15X38MMU	N/A 38 mm	N/A 15	N/A 10x3.3	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
88345044103	N/A QF175S303X50MM	N/A 50 mm	N/A 175	N/A 14x3.8	N/A 2.67 in67.8 mm	N/A
88345044104	N/A QF175S303X65MM	N/A 65 mm	N/A 175	N/A 18x4.4	N/A 2.67 in67.8 mm	N/A
88345044105	N/A QF175S303X75MM	N/A 75 mm	N/A 175	N/A 20x4.9	N/A 2.67 in67.8 mm	N/A
88345044106	N/A QF175S303X80MM	N/A 80 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345095557	N/A QF175S303X80MMU	N/A 80 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345044107	N/A QF175S303X85MM	N/A 85 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345096437	N/A QF175S303X85MMU	N/A 85 mm	N/A 175	N/A 22x5.4	N/A 2.67 in67.8 mm	N/A
88345096438	N/A QF175S303X95MMU	N/A 95 mm	N/A 175	N/A 25x5.4	N/A 2.67 in67.8 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
88345050078	N/A QF175X39MM	N/A 39 mm	N/A 175	N/A 12x3.3	N/A 2.67 in67.8 mm	N/A
88345043000	N/A QF175X40MM	N/A 40 mm	N/A 175	N/A 12x3.3	N/A 2.67 in67.8 mm	N/A
88345043001	N/A QF175X42MM	N/A 42 mm	N/A 175	N/A 12x3.3	N/A 2.67 in67.8 mm	N/A
88345044134	N/A QF175X42MMU	N/A 42 mm	N/A 175	N/A 12x3.3	N/A 2.67 in67.8 mm	N/A
88345096002	N/A QF175X45MM	N/A 45 mm	N/A 175	N/A 14x3.8	N/A 2.67 in67.8 mm	N/A
88345096052	N/A QF175X50MM	N/A 50 mm	N/A 175	N/A 14x3.8	N/A 2.67 in67.8 mm	N/A
88345043002	N/A QF175X50MMU	N/A 50 mm	N/A 175	N/A 14x3.8	N/A 2.67 in67.8 mm	N/A

88345043686

N/A QF15X34MM

N/A 34 mm

N/A 15

N/A 10x3.3

N/A 1.34 in34 mm

N/A

88345043687

N/A QF15X34MMU

N/A 34 mm

N/A 15

N/A 10x3.3

N/A 1.34 in34 mm

N/A

88345031033

N/A QF15X35MM

N/A 35 mm

N/A 15

N/A 10x3.3

N/A 1.34 in34 mm

N/A

88345043214

N/A QF15X35MMU

N/A 35 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

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

88345095983

N/A QF15X38MMU

N/A 38 mm

N/A 15

N/A 10x3.3

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

88345044103

N/A QF175S303X50MM

N/A 50 mm

N/A 175

N/A 14x3.8

N/A 2.67 in67.8 mm

N/A

88345044104

N/A QF175S303X65MM

N/A 65 mm

N/A 175

N/A 18x4.4

N/A 2.67 in67.8 mm

N/A

88345044105

N/A QF175S303X75MM

N/A 75 mm

N/A 175

N/A 20x4.9

N/A 2.67 in67.8 mm

N/A

88345044106

N/A QF175S303X80MM

N/A 80 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345095557

N/A QF175S303X80MMU

N/A 80 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345044107

N/A QF175S303X85MM

N/A 85 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345096437

N/A QF175S303X85MMU

N/A 85 mm

N/A 175

N/A 22x5.4

N/A 2.67 in67.8 mm

N/A

88345096438

N/A QF175S303X95MMU

N/A 95 mm

N/A 175

N/A 25x5.4

N/A 2.67 in67.8 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

88345050078

N/A QF175X39MM

N/A 39 mm

N/A 175

N/A 12x3.3

N/A 2.67 in67.8 mm

N/A

88345043000

N/A QF175X40MM

N/A 40 mm

N/A 175

N/A 12x3.3

N/A 2.67 in67.8 mm

N/A

88345043001

N/A QF175X42MM

N/A 42 mm

N/A 175

N/A 12x3.3

N/A 2.67 in67.8 mm

N/A

88345044134

N/A QF175X42MMU

N/A 42 mm

N/A 175

N/A 12x3.3

N/A 2.67 in67.8 mm

N/A

88345096002

N/A QF175X45MM

N/A 45 mm

N/A 175

N/A 14x3.8

N/A 2.67 in67.8 mm

N/A

88345096052

N/A QF175X50MM

N/A 50 mm

N/A 175

N/A 14x3.8

N/A 2.67 in67.8 mm

N/A

88345043002

N/A QF175X50MMU

N/A 50 mm

N/A 175

N/A 14x3.8

N/A 2.67 in67.8 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