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
88345043700	N/A QF25X28MMU	N/A 28 mm	N/A 25	N/A 8x3.3	N/A 1.81 in46 mm	N/A
88345043077	N/A QF25S303X30MM	N/A 30 mm	N/A 25	N/A 8x3.3	N/A 1.81 in46 mm	N/A
88345005323	N/A QF25X30MM	N/A 30 mm	N/A 25	N/A 8x3.3	N/A 1.81 in46 mm	N/A
88345043701	N/A QF25X30MMU	N/A 30 mm	N/A 25	N/A 8x3.3	N/A 1.81 in46 mm	N/A
88345043996	N/A QF100X30MM	N/A 30 mm	N/A 100	N/A 8x3.3	N/A 2.46 in62.5 mm	N/A
88345044237	N/A QF250X30MM	N/A 30 mm	N/A 250	N/A 8x3.3	N/A 3.1 in78.7 mm	N/A
88345043932	N/A QF1000X30MMU	N/A 30 mm	N/A 1000	N/A 8x3.3	N/A 4.6 in116.8 mm	N/A
88345044448	N/A QF50X24MM	N/A 24.00 mm	N/A 50	N/A 8x3.3	N/A 2.16 in54.9 mm	N/A
88345044450	N/A QF50X25MM	N/A 25.00 mm	N/A 50	N/A 8x3.3	N/A 2.16 in54.9 mm	N/A
88345044454	N/A QF50X28MM	N/A 28 mm	N/A 50	N/A 8x3.3	N/A 2.16 in54.9 mm	N/A
88345031036	N/A QF50X30MM	N/A 30 mm	N/A 50	N/A 8x3.3	N/A 2.16 in54.9 mm	N/A
88345043716	N/A QF50X30MMU	N/A 30 mm	N/A 50	N/A 8x3.3	N/A 2.16 in54.9 mm	N/A
88345096463	N/A QF5S303X22MME	N/A 22 mm	N/A 5	N/A 8 x 3.3	N/A 1.08 in27.4 mm	N/A
88345032899	N/A QF5S303X18MM	N/A 18 mm	N/A 5	N/A 6x2.8	N/A 1.08 in27.4 mm	N/A
88345046178	N/A QF5S303X18MMU	N/A 18 mm	N/A 5	N/A 6x2.8	N/A 1.08 in27.4 mm	N/A
88345040999	N/A QF5S303X19MM	N/A 19.00 mm	N/A 5	N/A 6x2.8	N/A 1.08 in27.4 mm	N/A
88345032900	N/A QF5S303X20MM	N/A 20.00 mm	N/A 5	N/A 6x2.8	N/A 1.08 in27.4 mm	N/A
88345032901	N/A QF5S303X22MM	N/A 22 mm	N/A 5	N/A 6x2.8	N/A 1.08 in27.4 mm	N/A
88345044076	N/A QF15X18MM	N/A 18 mm	N/A 15	N/A 6x2.8	N/A 1.34 in34 mm	N/A
88345032882	N/A QF15S303X19MM	N/A 19.00 mm	N/A 15	N/A 6x2.8	N/A 1.34 in34 mm	N/A
88345005223	N/A QF15X19MM	N/A 19.00 mm	N/A 15	N/A 6x2.8	N/A 1.34 in34 mm	N/A
88345043678	N/A QF15X19MMU	N/A 19.00 mm	N/A 15	N/A 6x2.8	N/A 1.34 in34 mm	N/A
88345032883	N/A QF15S303X20MM	N/A 20.00 mm	N/A 15	N/A 6x2.8	N/A 1.34 in34 mm	N/A
88345031031	N/A QF15X20MM	N/A 20.00 mm	N/A 15	N/A 6x2.8	N/A 1.34 in34 mm	N/A
88345043679	N/A QF15X20MMU	N/A 20.00 mm	N/A 15	N/A 6x2.8	N/A 1.34 in34 mm	N/A

88345043700

N/A QF25X28MMU

N/A 28 mm

N/A 25

N/A 8x3.3

N/A 1.81 in46 mm

N/A

88345043077

N/A QF25S303X30MM

N/A 30 mm

N/A 25

N/A 8x3.3

N/A 1.81 in46 mm

N/A

88345005323

N/A QF25X30MM

N/A 30 mm

N/A 25

N/A 8x3.3

N/A 1.81 in46 mm

N/A

88345043701

N/A QF25X30MMU

N/A 30 mm

N/A 25

N/A 8x3.3

N/A 1.81 in46 mm

N/A

88345043996

N/A QF100X30MM

N/A 30 mm

N/A 100

N/A 8x3.3

N/A 2.46 in62.5 mm

N/A

88345044237

N/A QF250X30MM

N/A 30 mm

N/A 250

N/A 8x3.3

N/A 3.1 in78.7 mm

N/A

88345043932

N/A QF1000X30MMU

N/A 30 mm

N/A 1000

N/A 8x3.3

N/A 4.6 in116.8 mm

N/A

88345044448

N/A QF50X24MM

N/A 24.00 mm

N/A 50

N/A 8x3.3

N/A 2.16 in54.9 mm

N/A

88345044450

N/A QF50X25MM

N/A 25.00 mm

N/A 50

N/A 8x3.3

N/A 2.16 in54.9 mm

N/A

88345044454

N/A QF50X28MM

N/A 28 mm

N/A 50

N/A 8x3.3

N/A 2.16 in54.9 mm

N/A

88345031036

N/A QF50X30MM

N/A 30 mm

N/A 50

N/A 8x3.3

N/A 2.16 in54.9 mm

N/A

88345043716

N/A QF50X30MMU

N/A 30 mm

N/A 50

N/A 8x3.3

N/A 2.16 in54.9 mm

N/A

88345096463

N/A QF5S303X22MME

N/A 22 mm

N/A 5

N/A 8 x 3.3

N/A 1.08 in27.4 mm

N/A

88345032899

N/A QF5S303X18MM

N/A 18 mm

N/A 5

N/A 6x2.8

N/A 1.08 in27.4 mm

N/A

88345046178

N/A QF5S303X18MMU

N/A 18 mm

N/A 5

N/A 6x2.8

N/A 1.08 in27.4 mm

N/A

88345040999

N/A QF5S303X19MM

N/A 19.00 mm

N/A 5

N/A 6x2.8

N/A 1.08 in27.4 mm

N/A

88345032900

N/A QF5S303X20MM

N/A 20.00 mm

N/A 5

N/A 6x2.8

N/A 1.08 in27.4 mm

N/A

88345032901

N/A QF5S303X22MM

N/A 22 mm

N/A 5

N/A 6x2.8

N/A 1.08 in27.4 mm

N/A

88345044076

N/A QF15X18MM

N/A 18 mm

N/A 15

N/A 6x2.8

N/A 1.34 in34 mm

N/A

88345032882

N/A QF15S303X19MM

N/A 19.00 mm

N/A 15

N/A 6x2.8

N/A 1.34 in34 mm

N/A

88345005223

N/A QF15X19MM

N/A 19.00 mm

N/A 15

N/A 6x2.8

N/A 1.34 in34 mm

N/A

88345043678

N/A QF15X19MMU

N/A 19.00 mm

N/A 15

N/A 6x2.8

N/A 1.34 in34 mm

N/A

88345032883

N/A QF15S303X20MM

N/A 20.00 mm

N/A 15

N/A 6x2.8

N/A 1.34 in34 mm

N/A

88345031031

N/A QF15X20MM

N/A 20.00 mm

N/A 15

N/A 6x2.8

N/A 1.34 in34 mm

N/A

88345043679

N/A QF15X20MMU

N/A 20.00 mm

N/A 15

N/A 6x2.8

N/A 1.34 in34 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