QUICK FLEX Flanged Spacer Hubs - Inch (Imperial) 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.

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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.

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Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

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Part Number	Description	Bore Size	Coupling Size	Keyway Size (W x D)	CAD
88345043358	N/A QF100SPHUBX2-7/8U	N/A 2-7/8 in	N/A 100	N/A 3/4X3/8 in	N/A
88345042912	N/A QF15SPHUBX1	N/A 1 in	N/A 15	N/A 1/4x1/8 in	N/A
88345043767	N/A QF15SPHUBX1-1/2	N/A 1-1/2 in	N/A 15	N/A 3/8x3/16 in	N/A
88345042913	N/A QF15SPHUBX1-1/4	N/A 1-1/4 in	N/A 15	N/A 1/4x1/8 in	N/A
88345040985	N/A QF15SPHUBX1-1/8	N/A 1-1/8 in	N/A 15	N/A 1/4x1/8 in	N/A
88345040986	N/A QF15SPHUBX1-3/8	N/A 1-3/8 in	N/A 15	N/A 3/8x3/16 in	N/A
88345042914	N/A QF15SPHUBX1-5/8	N/A 1-5/8 in	N/A 15	N/A 3/8x3/16 in	N/A
88345043769	N/A QF15SPHUBX3/4	N/A 3/4 in	N/A 15	N/A 1/8x1/16 in	N/A
88345043213	N/A QF15SPHUBX7/8	N/A 7/8 in	N/A 15	N/A 3/16X3/32 in	N/A
88345095934	N/A QF15SPHUBXPB	N/A 17/32 in	N/A 15	N/A NKW in	N/A
88345095955	N/A QF15LSPHUBXPB	N/A 17/32 in	N/A 15	N/A 1/8x1/16 in	N/A
88345043828	N/A QF25SPHUBX2	N/A 2 in	N/A 25	N/A 1/2X1/4 in	N/A
88345043823	N/A QF25SPHUBX1-1/2	N/A 1-1/2 in	N/A 25	N/A 3/8x3/16 in	N/A
88345043092	N/A QF25SPHUBX1-1/4	N/A 1-1/4 in	N/A 25	N/A 1/4x1/8 in	N/A
88345043094	N/A QF25SPHUBX1-3/4	N/A 1-3/4 in	N/A 25	N/A 3/8x3/16 in	N/A
88345043093	N/A QF25SPHUBX1-1/8	N/A 1-1/8 in	N/A 25	N/A 1/4x1/8 in	N/A
88345043826	N/A QF25SPHUBX1-3/8	N/A 1-3/8 in	N/A 25	N/A 3/8x3/16 in	N/A
88345046179	N/A QF25S303SPHUBX1-5/8	N/A 1-5/8 in	N/A 25	N/A 3/8x3/16 in	N/A
88345043095	N/A QF25SPHUBX1-5/8	N/A 1-5/8 in	N/A 25	N/A 3/8x3/16 in	N/A
88345043096	N/A QF25SPHUBX1-7/8	N/A 1-7/8 in	N/A 25	N/A 1/2X1/4 in	N/A
88345043827	N/A QF25SPHUBX1-7/8U	N/A 1-7/8 in	N/A 25	N/A 1/2X1/4 in	N/A
88345043097	N/A QF25SPHUBX2-1/8	N/A 2-1/8 in	N/A 25	N/A 1/2X1/4 in	N/A
88345043829	N/A QF25SPHUBX2-1/8U	N/A 2-1/8 in	N/A 25	N/A 1/2X1/4 in	N/A
88345043833	N/A QF25SPHUBX3-3/8	N/A 3-3/8 in	N/A 25	N/A 7/8X7/16 in	N/A
88345043822	N/A QF25SPHUBX1-1/16	N/A 1-1/16 in	N/A 25	N/A 1/4x1/8 in	N/A

N/A 2-7/8 in

N/A 100

N/A 3/4X3/8 in

N/A

88345042912

N/A QF15SPHUBX1

N/A 1 in

N/A 15

N/A 1/4x1/8 in

N/A

88345043767

N/A QF15SPHUBX1-1/2

N/A 1-1/2 in

N/A 15

N/A 3/8x3/16 in

N/A

88345042913

N/A QF15SPHUBX1-1/4

N/A 1-1/4 in

N/A 15

N/A 1/4x1/8 in

N/A

88345040985

N/A QF15SPHUBX1-1/8

N/A 1-1/8 in

N/A 15

N/A 1/4x1/8 in

N/A

88345040986

N/A QF15SPHUBX1-3/8

N/A 1-3/8 in

N/A 15

N/A 3/8x3/16 in

N/A

88345042914

N/A QF15SPHUBX1-5/8

N/A 1-5/8 in

N/A 15

N/A 3/8x3/16 in

N/A

88345043769

N/A QF15SPHUBX3/4

N/A 3/4 in

N/A 15

N/A 1/8x1/16 in

N/A

88345043213

N/A QF15SPHUBX7/8

N/A 7/8 in

N/A 15

N/A 3/16X3/32 in

N/A

88345095934

N/A QF15SPHUBXPB

N/A 17/32 in

N/A 15

N/A NKW in

N/A

88345095955

N/A QF15LSPHUBXPB

N/A 17/32 in

N/A 15

N/A 1/8x1/16 in

N/A

88345043828

N/A QF25SPHUBX2

N/A 2 in

N/A 25

N/A 1/2X1/4 in

N/A

88345043823

N/A QF25SPHUBX1-1/2

N/A 1-1/2 in

N/A 25

N/A 3/8x3/16 in

N/A

88345043092

N/A QF25SPHUBX1-1/4

N/A 1-1/4 in

N/A 25

N/A 1/4x1/8 in

N/A

88345043094

N/A QF25SPHUBX1-3/4

N/A 1-3/4 in

N/A 25

N/A 3/8x3/16 in

N/A

88345043093

N/A QF25SPHUBX1-1/8

N/A 1-1/8 in

N/A 25

N/A 1/4x1/8 in

N/A

88345043826

N/A QF25SPHUBX1-3/8

N/A 1-3/8 in

N/A 25

N/A 3/8x3/16 in

N/A

88345046179

N/A QF25S303SPHUBX1-5/8

N/A 1-5/8 in

N/A 25

N/A 3/8x3/16 in

N/A

88345043095

N/A QF25SPHUBX1-5/8

N/A 1-5/8 in

N/A 25

N/A 3/8x3/16 in

N/A

88345043096

N/A QF25SPHUBX1-7/8

N/A 1-7/8 in

N/A 25

N/A 1/2X1/4 in

N/A

88345043827

N/A QF25SPHUBX1-7/8U

N/A 1-7/8 in

N/A 25

N/A 1/2X1/4 in

N/A

88345043097

N/A QF25SPHUBX2-1/8

N/A 2-1/8 in

N/A 25

N/A 1/2X1/4 in

N/A

88345043829

N/A QF25SPHUBX2-1/8U

N/A 2-1/8 in

N/A 25

N/A 1/2X1/4 in

N/A

88345043833

N/A QF25SPHUBX3-3/8

N/A 3-3/8 in

N/A 25

N/A 7/8X7/16 in

N/A

88345043822

N/A QF25SPHUBX1-1/16

N/A 1-1/16 in

N/A 25

N/A 1/4x1/8 in

N/A

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

No Preference
1
1 1/2
1 1/8
1 3/4
1 7/8
1-1/16
1-1/2
1-1/4
1-1/8
1-15/16
1-3/16
1-3/4
1-3/8
15/16
1-5/8
17/32
1-7/8
2
2 1/2
2 1/4
2 3/8
2.5
2-1/2
2-1/4
2-1/8
2-15/16
23/32
2-3/4
2-3/8
2-5/8
2-7/8
3
3.325
3/4
3-1/2
3-1/4
3-15/16
3-3/4
3-3/8
3-5/8
3-7/16
3-7/8
4
4.5
4-1/2
4-1/4
4-1/8
4-3/4
4-3/8
5 1/2
5/8
5-3/4
6
6-1/2
7
7/8

Bore Size (in)

Coupling Size

Keyway Size (in)

Part Number

Description

Bore Size

Coupling Size

Keyway Size (W x D)

CAD