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

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QUICK FLEX couplings consist of two hubs, one insert, and a cover.

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Bore Size (mm)

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Coupling Size

Keyway Size

Part Number	Description	Bore Size	Coupling Size	Keyway Size (mm)	Length thru Bore	CAD

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
88345043720	N/A QF50X35MMU	N/A 35 mm	N/A 50	N/A 10X3.3	N/A 2.16 in54.9 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
88345044425	N/A QF50S303X40MM	N/A 40 mm	N/A 50	N/A 12X3.3	N/A 2.16 in54.9 mm	N/A

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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