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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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  • QUICK FLEX flanged spacer hub
QUICK FLEX single ended spacer couplings consist of one standard coupling hub, one flanged spacer hub, one spacer body, one insert, and one cover with included hardware.
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Bore Size  (in)

Coupling Size

Keyway Size  (in)

Part Number

Description 

Bore Size 

Coupling Size

Keyway Size (W x D)

CAD

N/A QF175SPHUBX3-3/8 N/A 3-3/8 in N/A 175 N/A 7/8X7/16 in N/A
N/A QF175SPHUBX3-3/8U N/A 3-3/8 in N/A 175 N/A 7/8X7/16 in N/A
N/A QF175SPHUBX3-5/8 N/A 3-5/8 in N/A 175 N/A 7/8X7/16 in N/A
N/A QF175SPHUBX3-5/8U N/A 3-5/8 in N/A 175 N/A 7/8X7/16 in N/A
N/A QF175SPHUBX3-7/8 N/A 3-7/8 in N/A 175 N/A 1x1/2 in N/A
N/A QF175SPHUBX3-7/16 N/A 3-7/16 in N/A 175 N/A 7/8X7/16 in N/A
N/A QF175SPHUBX3-5/8E N/A 3-5/8 in N/A 175 N/A 7/8X7/16 in N/A
N/A QF175SPHUBXPB N/A 1 in N/A 175 N/A NKW in N/A
N/A QF175LSPHUBXPB N/A 1 in N/A 175 N/A 1/4x1/8 in N/A
N/A QF175SPHUB2-3/8 N/A 2 3/8 in N/A 175 N/A 5/8X5/16 in N/A
N/A QF250SPHUBX3.325 N/A 3.325 in N/A 250 N/A 7/8X7/16 in N/A
N/A QF250SPHUBX4 N/A 4 in N/A 250 N/A 1x1/2 in N/A
N/A QF250SPHUBX3-3/4U N/A 3-3/4 in N/A 250 N/A 7/8X7/16 in N/A
N/A QF250SPHUBX4-1/4 N/A 4-1/4 in N/A 250 N/A 1x1/2 in N/A
N/A QF250SPHUBX2-7/8 N/A 2-7/8 in N/A 250 N/A 3/4X3/8 in N/A
N/A QF250SPHUBX3-3/8 N/A 3-3/8 in N/A 250 N/A 7/8X7/16 in N/A
N/A QF250SPHUBX3-3/8U N/A 3-3/8 in N/A 250 N/A 7/8X7/16 in N/A
N/A QF250SPHUBX3-5/8U N/A 3-5/8 in N/A 250 N/A 7/8X7/16 in N/A
N/A QF250SPHUBX3-7/8 N/A 3-7/8 in N/A 250 N/A 1x1/2 in N/A
N/A QF250SPHUBX4-1/8 N/A 4-1/8 in N/A 250 N/A 1x1/2 in N/A
N/A QF250SPHUBX4-1/8U N/A 4-1/8 in N/A 250 N/A 1x1/2 in N/A
N/A QF250SPHUBXPB N/A 1 1/2 in N/A 250 N/A NKW in N/A
N/A QF250LSPHUBXPB N/A 1 1/2 in N/A 250 N/A 3/8x3/16 in N/A
N/A QF500SPHUBX3 N/A 3 in N/A 500 N/A 3/4X3/8 in N/A
N/A QF500SPHUBX3U N/A 3 in N/A 500 N/A 3/4X3/8 in N/A
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