Suzue bicycle hub parts

Suzue hub parts on this page: Hub dustcaps
Tech: An explanation of cartridge bearing hubs using sleeve nuts or smooth axles

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Suzue/Specialized/Sanshin Hub Dustcaps. New, $3.00/each

Part# 65170

• These dustcaps are for hubs with cartridge bearings.
• They will work on many Suzue, Specialized and Sanshin hubs with cartridge bearings.
• We have ten in stock.

Both sides shown

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An explanation of cartridge bearing hubs

Jump to axle set for cartridge bearing hub requiring smooth axle.

Hubs with Sleeve nuts

Since the Suzue/Specialized/Sanshin Hub Dustcaps posted above are designed to be used on cartridge bearing hubs using sleeve nuts, I thought this would be a good place to to explain sleeve nuts.

In hubs using sleeve nuts the dustcover is seated on the sleeve nut next to the cartridge bearing, with the sleeve nut’s flange securing it in place.  The lock nut is adjacent to the flange of the sleeve nut, and the dust over is on the other side of the flange against the cartridge bearing.  The dust cover is not sandwiched between the lock nut and the sleeve nut flange.

I don’t know why I periodically have seen hubs missing the dustcover.

The nylon seal of the cartridge bearing is probably adequate in preventing contamination, so the dust cover is merely ornamental, and a secondary, less effective seal.

What I like about sleeve nuts is the dispersion of bending/breaking pressures on rear axles.  And, that they typically use standard thread dimensions for axle replacement. Unlike other cartridge bearing hub designs, any axle, either a standard solid, or a hollow quick-release, can be used if the thread dimensions match. Not just for replacement, but also for re-using the hub for different dropout widths.

Other hub designs, such as OMAS, used a proprietary axle with the sleeve surface and shoulder were part of the axle.  These special axles were at one time available, but now scarce as hen’s teeth. Of course, the sleeve diameter was much smaller than those using sleeve nuts, and finding a cartridge bearing that allowed the use of a sleeve nut and met the dimensions of the hub itself became a scientific study.

 

Here is a cartridge bearing sleeve nut.

Here is an axle with sleeve nuts.

Here's an end-view of the axle with a sleeve nut.

Here is is disassembled.

A hub with a cartridge bearing ready to receive and axle with a sleeve nut.

The cartridge bearing revealed.

Axle set for cartridge bearing hub requiring proprietary smooth axle: