Living With Them

Servicing a Bogey Wheel

Camso's own two ATV pages disagree about whether the bearing in a bogey wheel can be replaced at all. On the bench both sentences turn out to be true, of different hardware. Which is which, how much play is too much, and what it takes to get a seized wheel off a shaft.

Gary Bauch
Section 06Living With ThemEntry 03 of 044 dated notes

Camso’s two pages disagree, and both are right

This site has published the contradiction for a while without being able to resolve it. What the parts are called records it against the mid-rollers, and the X4S page ends on it: a bearing you can press out is a bearing job, a bearing moulded into a wheel is a wheel, and nothing published says which one you own. The X4S page describes standard and replaceable sealed bearings. The T4S page, in the same position, describes a molded bearing inside wheels. Same manufacturer, same product family, two sentences that cannot both describe one part.

Taking them apart settles it, and the answer is that both sentences are accurate about different hardware. Some of the single-bearing quad bogey wheels have the bearing injected into the wheel during manufacture. There is no bearing in there to press out and no service operation that ends with the old wheel still on the machine. When it is finished you are buying a wheel. The double-bearing wheels — the X4S arrangement, and the wider wheels on the side-by-side systems — carry two bearings that come out and go back in, with a space between them that matters more than it looks like it should.

The practical consequence is an ordering one, and it is the reason the distinction is worth the paragraph: an owner who diagnoses a worn bearing on an injected-bearing wheel and orders a bearing has ordered the wrong part, and will find out on the day the machine is in pieces. Work out which wheel you have before the order goes in, not after.

One caution on reading your own system’s identity off the serial plate. The quad family in this generation is shared between two product names with only the model year separating them, which is the whole subject of a 6622 serial is ambiguous. Photograph the plate and let a parts desk resolve it rather than matching a prefix by eye.

How much play is too much

Start with what is not available. No manufacturer in view publishes a play limit, a wear limit or an hours-to-replacement figure for any part of these systems — inspecting a used system establishes that absence across the whole of the hardware, and it holds here too. There is no published number to hold a wheel against, and the table below is not one.

What the table is: the thresholds one bench works to, written down so they can be argued with. A reader who wants a specification should ask Camso for one, and if they get an answer this site would like to publish it.

WheelHow it is checked hereWhat is done about it here
Single-bearing bogey wheels on the Camso quad systemsRocked side to side by hand1/8 to 1/4 in of movement, on its own, has not been treated as a reason to replace the wheel here
The large rubber bogey wheels on the Camso 4S1Track tension released first, then rocked side to sideMore than about 1/4 in: both bearings in that wheel replaced
The wider solid bogey wheels on the side-by-side systemsPressure taken off that wheel with a bar under the track, then rocked — the track does not have to come off for this oneMore than about 1/4 in: both bearings in that wheel replaced

Release the track tension before you judge any of it. This is the part most often skipped and it is the part that makes the check worth doing. A tensioned track pushes the wheel hard against whatever play it has, and a bearing that is well past serviceable will feel tight. Checking with the tension on does not give you a cautious reading; it gives you a wrong one.

On the wider solid wheels the track does not have to come all the way off. Taking the pressure off that one wheel with a bar or a large screwdriver under the track is enough to let it move, which makes this a check worth doing before a riding season rather than one that waits for a changeover.

The large rubber bogey wheels on the 4S1 are the ones to be least relaxed about, and the reason is not bearing cost. A wheel that comes off the shaft under way can take the track with it. That is a consequence out of proportion to the part, and it is why the threshold on that row is applied rather than noted.

Not shot yet. One unit, track tension released, the same wheel shot at rest and held over at the end of its play, from a fixed camera position with a rule in frame. Then the pair that settles the other half of the page: an injected-bearing wheel cut or shown open beside a double-bearing wheel with both bearings out and the cavity between them visible. The page asks a reader to judge a distance by hand and to tell two wheels apart by eye, and gives them nothing to compare either against.

Fig. 1. No such photograph exists. Filed as LW-BOGEY-01 on the shot list, which is the whole of what has been done about it.

Getting a seized wheel off

A wheel that has been on a shaft through several wet seasons without the cap coming off can be extremely difficult to move, and the damage usually happens to the thing doing the prying rather than to the wheel. Camso makes a puller for the job. It works on most of these wheels, it works especially well on the old stubborn ones, and it replaces an afternoon of hitting things with a controlled pull.

Take the track off first. The puller needs to sit square on the wheel, and with the belt on there is neither the access to position it nor the room to work it. ATVtracks.net publishes a video of the puller in use which is the clearest record of the sequence; nothing below repeats what is in it.

The assemblies the puller is the wrong tool for

There is one exception worth knowing before you buy the tool, and it is a whole class of assembly rather than an awkward individual wheel: the bogey wheels mounted on the swivel brackets. Those brackets carry a rubber bushing, and a puller reacting through a rubber bushing has nothing solid to pull against. It is not the right tool for that job, and persisting with it is how a bracket gets damaged.

In the serial reference read , the families this applies to are the side-by-side ones: 6722 (2014–2016) and 6822 (2010–2013), both filed as side-by-side systems and both recorded under Camoplast rather than under the later brand. They are routinely called Camso systems in a shop, which is fair enough — it is the same company — but the badge on the hardware and the name in the parts index are the older one, and that is the name an order has to be placed under. The two Tatou generations is where that naming goes in full.

What is done here instead, in order:

  1. Take the complete swivel bracket assembly off the track frame rather than working on it in place. Everything after this step depends on it.
  2. Hold the bracket securely in a vice. This is the whole advantage of the method: the assembly is held, the work is at bench height, and nothing you are hitting is attached to anything you care about.
  3. Drive the old wheel off the shaft. Controlled, square, and with the bracket supported — which is a different job from persuading the same wheel off while it is still bolted to a machine on a jack.

Oil, between the bearings and under the cap

This is the shortest section and the one most likely to be worth money to a reader, because it costs nothing and it is almost always skipped.

On a double-bearing wheel there is a space of roughly 3/4 in between the two bearings. It will hold oil. Filling it when the wheel goes back together is a few seconds of work, and the reasoning is the same reasoning that makes the bearings a wear item in the first place: these wheels run underwater, in grit, under a load that reverses every time the belt comes over them. Anything that keeps water out of that cavity is working on the failure mode that is actually present.

Put some oil under the wheel cap as well, both when a wheel is reassembled and — on the wheels that are retained with a bolt — about once a year as routine, with the cap off and a gear oil. Some of the quad bogey wheels are pressed on rather than bolted on; a small amount under the cap still reaches the area it needs to reach.

The second effect of the oil under the cap is the one you notice years later. A wheel that was put back wet comes off again. A wheel that was put back dry is the wheel at the top of this page, the one that needs the puller. The maintenance and the removal problem are the same problem, separated by about six seasons.

What this is not

It is not a maintenance schedule. The schedules, intervals and specified values for these systems are in the manual that shipped with the kit and on the dealer’s maintenance page, which carries the manufacturer’s own per-area schedule. Nothing here replaces either, and where this page and a manual disagree the manual is the one to follow.

It is also one shop’s record rather than a survey. The thresholds in the table are what gets replaced here, on the machines that come through here, in this climate. A reader whose machine lives in dry sand is reading about a different failure rate from a page written where the wheels spend half their life in slush. The method — release the tension, rock the wheel, compare it with the other three on the same unit — transfers. The numbers are a starting point for an argument with a parts desk, not the end of one.

Manufacturer sentences were read 2026-09-26; serial families are derived from the published serial reference. Bench observations are dated where they appear and are one shop's record, not a specification. Where anything here disagrees with the manual that shipped with your system, the manual is the one to use.