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
88345043080	N/A QF25S303X42MM	N/A 42 mm	N/A 25	N/A 12x3.3	N/A 1.81 in46 mm	N/A
88345032989	N/A QF25X42MM	N/A 42 mm	N/A 25	N/A 12x3.3	N/A 1.81 in46 mm	N/A
88345043705	N/A QF25X42MMU	N/A 42 mm	N/A 25	N/A 12x3.3	N/A 1.81 in46 mm	N/A
88345044298	N/A QF25X43MM	N/A 43 mm	N/A 25	N/A 12x3.3	N/A 1.81 in46 mm	N/A
88345095925	N/A QF25S303X45MM	N/A 45 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345032990	N/A QF25X45MM	N/A 45 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345043706	N/A QF25X45MMU	N/A 45 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345044299	N/A QF25X46MM	N/A 46 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345095980	N/A QF25S303X48MM	N/A 48 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345005328	N/A QF25X48MM	N/A 48 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345043111	N/A QF25X48MMU	N/A 48 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345005329	N/A QF25X50MM	N/A 50 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345043707	N/A QF25X50MMU	N/A 50 mm	N/A 25	N/A 14x3.8	N/A 1.81 in46 mm	N/A
88345039971	N/A QF50S303X19MM	N/A 19.00 mm	N/A 50	N/A 6x2.8	N/A 2.16 in54.9 mm	N/A
88345044445	N/A QF50X22MM	N/A 22 mm	N/A 50	N/A 6x2.8	N/A 2.16 in54.9 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
88345031037	N/A QF50X32MM	N/A 32.00 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 mm	N/A
88345043717	N/A QF50X32MMU	N/A 32.00 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 mm	N/A
88345043718	N/A QF50X34MM	N/A 34 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 mm	N/A
88345043719	N/A QF50X34MMU	N/A 34 mm	N/A 50	N/A 10x3.3	N/A 2.16 in54.9 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

88345043080

N/A QF25S303X42MM

N/A 42 mm

N/A 25

N/A 12x3.3

N/A 1.81 in46 mm

N/A

88345032989

N/A QF25X42MM

N/A 42 mm

N/A 25

N/A 12x3.3

N/A 1.81 in46 mm

N/A

88345043705

N/A QF25X42MMU

N/A 42 mm

N/A 25

N/A 12x3.3

N/A 1.81 in46 mm

N/A

88345044298

N/A QF25X43MM

N/A 43 mm

N/A 25

N/A 12x3.3

N/A 1.81 in46 mm

N/A

88345095925

N/A QF25S303X45MM

N/A 45 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345032990

N/A QF25X45MM

N/A 45 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345043706

N/A QF25X45MMU

N/A 45 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345044299

N/A QF25X46MM

N/A 46 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345095980

N/A QF25S303X48MM

N/A 48 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345005328

N/A QF25X48MM

N/A 48 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345043111

N/A QF25X48MMU

N/A 48 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345005329

N/A QF25X50MM

N/A 50 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345043707

N/A QF25X50MMU

N/A 50 mm

N/A 25

N/A 14x3.8

N/A 1.81 in46 mm

N/A

88345039971

N/A QF50S303X19MM

N/A 19.00 mm

N/A 50

N/A 6x2.8

N/A 2.16 in54.9 mm

N/A

88345044445

N/A QF50X22MM

N/A 22 mm

N/A 50

N/A 6x2.8

N/A 2.16 in54.9 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

88345031037

N/A QF50X32MM

N/A 32.00 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 mm

N/A

88345043717

N/A QF50X32MMU

N/A 32.00 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 mm

N/A

88345043718

N/A QF50X34MM

N/A 34 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 mm

N/A

88345043719

N/A QF50X34MMU

N/A 34 mm

N/A 50

N/A 10x3.3

N/A 2.16 in54.9 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

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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