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

Smarter Bearing Selection Is Here

The Timken ^® Syber ^® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

Learn More

Analyze Bearing Performance in an Application with Timken ^® Syber ^® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More

Save Time and Design with Confidence.
Register Today for Timken's Online Engineering Tools Webinar.

Part Number	Description	Bore Size	Coupling Size	Keyway Size (mm)	Length thru Bore	CAD
88345005320	N/A QF25X25MM	N/A 25 mm	N/A 25	N/A 8X3.3	N/A 1.81 in46 mm	N/A
88345043699	N/A QF25X25MMU	N/A 25 mm	N/A 25	N/A 8X3.3	N/A 1.81 in46 mm	N/A
88345044292	N/A QF25X27MM	N/A 27 mm	N/A 25	N/A 8X3.3	N/A 1.81 in46 mm	N/A
88345096378	N/A QF25S303X28MM	N/A 28 mm	N/A 25	N/A 8X3.3	N/A 1.81 in46 mm	N/A
88345005321	N/A QF25X28MM	N/A 28 mm	N/A 25	N/A 8X3.3	N/A 1.81 in46 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
88345043078	N/A QF25S303X32MM	N/A 32 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 mm	N/A
88345005324	N/A QF25X32MM	N/A 32 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 mm	N/A
88345043702	N/A QF25X32MMU	N/A 32 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 mm	N/A
88345044295	N/A QF25X33MM	N/A 33 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 mm	N/A
88345028590	N/A QF25X34MM	N/A 34 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 mm	N/A
88345043703	N/A QF25X34MMU	N/A 34 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 mm	N/A
88345044268	N/A QF25S303X35MM	N/A 35 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 mm	N/A
88345032987	N/A QF25X35MM	N/A 35 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 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
88345044296	N/A QF25X37MM	N/A 37 mm	N/A 25	N/A 10X3.3	N/A 1.81 in46 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
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
88345044297	N/A QF25X41MM	N/A 41 mm	N/A 25	N/A 12X3.3	N/A 1.81 in46 mm	N/A

Part Number

Description

Bore Size

Coupling Size

Keyway Size (mm)

Length thru Bore

CAD

88345005320

N/A QF25X25MM

N/A 25 mm

N/A 25

N/A 8X3.3

N/A 1.81 in46 mm

N/A

88345043699

N/A QF25X25MMU

N/A 25 mm

N/A 25

N/A 8X3.3

N/A 1.81 in46 mm

N/A

88345044292

N/A QF25X27MM

N/A 27 mm

N/A 25

N/A 8X3.3

N/A 1.81 in46 mm

N/A

88345096378

N/A QF25S303X28MM

N/A 28 mm

N/A 25

N/A 8X3.3

N/A 1.81 in46 mm

N/A

88345005321

N/A QF25X28MM

N/A 28 mm

N/A 25

N/A 8X3.3

N/A 1.81 in46 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

88345043078

N/A QF25S303X32MM

N/A 32 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 mm

N/A

88345005324

N/A QF25X32MM

N/A 32 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 mm

N/A

88345043702

N/A QF25X32MMU

N/A 32 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 mm

N/A

88345044295

N/A QF25X33MM

N/A 33 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 mm

N/A

88345028590

N/A QF25X34MM

N/A 34 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 mm

N/A

88345043703

N/A QF25X34MMU

N/A 34 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 mm

N/A

88345044268

N/A QF25S303X35MM

N/A 35 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 mm

N/A

88345032987

N/A QF25X35MM

N/A 35 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 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

88345044296

N/A QF25X37MM

N/A 37 mm

N/A 25

N/A 10X3.3

N/A 1.81 in46 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

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

88345044297

N/A QF25X41MM

N/A 41 mm

N/A 25

N/A 12X3.3

N/A 1.81 in46 mm

N/A

Email ^*
First Name ^*
Last Name ^*
Company ^*
Department ^*
Country ^*
Zip/Postal Code ^*
Phone Number

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