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Tool Time with Da Reverend (Pro Edition): Chris King Hub Tool - Thoughts on advanced applications

Stand | Status: 01/2019
Stichworte | Tags: #promechanic #chriskingbuzz #classic #iso #disc #r45 #wartung #instandhaltung #maintenance #tipps #hacknobodge
Sprache | Language: Deutsch (oben) & English (at the bottom)

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Bilder | Pictures:

( 1 ) Nicht minder schön verarbeitet als die Naben: Chris King HUB TOOL |
       As beautifully made as the hubs themselves: Chris King HUB TOOL

( 2 ) Krafteinleitung über den Innenring: SMALL SPLIT RING komplett gespreizt |
       Application of force to the inner bearing race: SMALL SPLIT RING, fully expanded

( 3 ) XD Freilauf: Aufbau zum Rauskloppen der Innereien nach Herstelleranleitung |
       XD driveshell: tool set-up for knocking out internals per manufacturer's instructions

( 4 ) XD Freilauf: Alternativer Aufbau mit EXTRACTOR CUP zum Ausziehen des Kugellagers |
       XD driveshell: alternative tool set-up with EXTRACTOR CUP for pulling out the ball bearing

( 5 ) Eigenbau EXTRACTOR CUP bestehend aus CAP und SPACER − mit Chris King KNURLED RING |
       Self-made EXTRACTOR CUP − composed of CAP and SPACER − with Chris King KNURLED RING

( 6 ) Statt rauskloppen: Aufbau zum Ausziehen des kleinen Kugellagers am Bremsscheibenflansch |
       In lieu of knocking out: set-up allowing to pull out the small hub bearing at the disc side

( 7 ) Nahaufnahme: Verwendung mit Bremsscheibenflansch |
       Close up: Application at disc mount side of hub

( 8 ) Nahaufnahme: Verwendung ohne Bremsscheibenflansch |
       Close up: Application at no disc mount side of hub

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Hi! As I have no clue how you got here, let me clarify first: This is not an introduction into periodic maintenance procedures for beginners. For that, I’ve got you covered there:

http://www.laktatexpress.de/posts/tool-time-mit-dem-reverend-herumdoktern-chris-king-naben

However, if you need to tackle tasks like removing ball bearings from a hubshell or service the internals of an XD driveshell: Welcome!
 

Preface

Certainly I like using the Chris King HUB TOOLs, but though: I realized that the tools are not necessarily perfect for every task. So I spend some rainy days on designing a few complementaty extra bits. In other words: I tried to be smarter that the man who invented it all. Blasphemy, you might say, but hang on for a sec and have a closer look first.
 

Removal of internals from XD driveshell

In order to remove the non-threaded PHB583 XD DRIVESHELL END CAP from a Classic / ISO Disc rear hub’s XD driveshell, you are supposed to knock all the internals out, including the inner unsealed ball bearing. Which unnecessarily stresses the ball bearing as all the force is being applied to the inner race.

I understand that the Chris King HUB TOOL was designed at a time when no such thing as an XD driveshell existed yet. So probably the Chris King folks just figured out a work around that would not require any amendments to the HUB TOOL. Even in their manual, they mention that as a result of the procedure, the inner ring may become "partially dislodged", which can be fixed through a tap. Hammering on a 50 Dollar bearing, are they serious? (Well yes, I am overstating this, but you get my point...)

Well, to be fair I should mention that it seems that the pitting likely caused by that unkind treatment does not affect the areas of the races that are relevant to normal operation. I.e. when you apply some pressure to the inner race while rotating the outer race, you will notice no pitting if you apply pressure into the direction the shoulder of an axle would do.

Anyhow, in order to make the process smoother, I developed a tool that, in conjunction with the HUB TOOL, allows to pull out the internals of the XD driveshell. For the time being, the procedure still does apply the force to the inner race of the ball bearing, but, hopefully, in a more gentle way. In order to protect the anodized surface of the Chris King KNURLED RING while turning, I put a plastic washer between the KNURLED RING and my EXPRACTOR CAP.
 

Removal of small hubshell bearing

When removing the small ball bearing from a rear hub, or removing a ball bearing from a front hub, you are supposed to knock the bearing out. Which, again, is unnecessary stress to the ball bearing.

Luckily, this isn’t anything that is required at all for maintenance but only when you intend to replace the hubshell. For clarity, the removal procedure for the large bearing of the rear hub – which is required for a full maintenance of the RingDrive mechanism − is a different story: When knocking out the RingDrive mechanism, the force is being applied to the outer (!) bearing race.

Anyhow, the issue and the solution is similar to what I described above. As the EXTRACTOR CUP is made of two pieces (the CAP and the SPACER), it will work on hubshell sides with or without an ISO Disc mount. In connection with an ISO Disc mount you use just the EXTRACTOR CAP. With no ISO disc mount flange, you add the SPACER and (to protect the surface of the spoke flange) a rubber ring.

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Posted by Reverend on 13.01.2019 - 20:58
D&D - Dies & Das

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