How to reinstall a freehub with cartridge bearings?

Asked by: Chris Barnett

How do I change the bearings on my freehub cartridge?

Quote from video: Surface of the freehub. Reinstall the cassette on a well-greased freehub body and tighten the lock ring down to 40 newton meters reinstall the end caps.

How do you remove sealed cartridges from hub bearings?

Quote from video: Also don't go too crazy and bash it all on one. Side you want to tap it until the bearing just starts to move. And then rotate the sleeve. And hit the bearing from the opposite.

Does a freehub have bearings?

Freehub bearings



Most freehubs use replaceable cartridge bearings but some, such as Shimano and Campagnolo, use loose ball bearings sealed within the freehub body.

How do you remove a sealed wheel bearing?

Quote from video: Like almost every bearing it's an interference fit or press fit or whatever you want to call it. So heat hub Center up pull the bearing out flip it over and do the same thing on the other side once.

How do I change the bearings on my bike hub?

Quote from video: We get the ax of out as we gently tap the axles through the hub. Sometimes a bearing will come out as you drive the axle out but not always either way it's not a problem most hubs are unidirectional.

What is a cartridge bearing?

In the bicycle industry, cartridge bearings refer to a bearing assembly that can be entirely removed. and replaced into the component such as a hub or bottom bracket. Traditionally, each bearing. assembly in a hub would consist of four separate components; a cup, a cone, a retainer and balls.

What is a sealed cartridge bearing?

A sealed bearing consists of an outer race (the visible external shell of the SCB) and an inner race which sandwich between ball bearings, which can be either loose or held in cage retainers, depending on the SCB type.

How do you open a sealed bearing?

Quote from video: And removable metal shields held in by a sea ring removing rubber seals is really easy you just need to use a paper clip. And poke it on the inside of the inner ring just a little bit and pry it out.

Which is better ball bearing or sealed bearing?

Unsealed ball bearings require lubrication regularly. If lubrication is not completed regularly, you are faced with the issue of failure. Sealed bearings however, do not need lubrication. This in turn, eliminates the process of lubrication, and thus results in saving time on labor.

How many bearings does a freewheel have?

Typically you’ll have 10 bearings per side in the front and nine bearings per side in the back. Those are *common* sizes and counts, but you really won’t know for sure until you tear into the hub.

How do I know what model my freehub is?

Quote from video: The easiest way actually to tell is count the number of teeth on your smallest cog it'll be 11 or 12 feet if you have an HG driver. The less common of the two is the ceramic ski driver. It.

Should I grease freehub?

So a little grease on a steel freehub certainly can’t hurt when it comes to corrosion protection. Bottom line, not a big deal. If you do regular maintenance and pull the cassette now and then in the process, leaving the freehub body dry shouldn’t hurt a thing.

How many bearings does a bike hub have?

Most have 4 bearings—two for the hub shell and two for the cassette body. If a hub is not machined to high tolerances the bearing cup bores will not be properly aligned. Since the larger diameter of the cartridge bearings are press fit into the hub and cassette body, the inner, slip fit races are free to slide.

What is a cartridge bottom bracket?

Cartridge-Style (Integrated Spindle Systems)



Cartridge-style bottom bracket. Some bottom brackets feature a spindle integrated into the bearings as a self-contained unit. These are commonly referred to as cartridge-style bottom brackets. Threaded ends or cups hold the unit secure in the frame shell.

How do you service a cartridge wheel bearing?

Quote from video: For what exactly it is you need to remove that bearing. Or that part from your bike. So cleaning bearings is actually what you're gonna do when they feel a little bit rough a little bit gritty.

How do I know if my bike bearings are bad?

Worn out or dry bearings will feel rough, metallic and dry. Sometimes they’re so dry that if you pull your finger fast across the axle you can make the axle keep spinning because there’s no grease inside the bearings to slow it down.

What is a sealed cartridge bearing?

A sealed bearing consists of an outer race (the visible external shell of the SCB) and an inner race which sandwich between ball bearings, which can be either loose or held in cage retainers, depending on the SCB type.

How do I fix my free hub?

Quote from video: But then when you take the wheel out you can remove the freehub. Really quickly and as you'll see the poles are on the freehub body and the actual spline bits are in the hub.

What is difference between ball bearing and roller bearing?

A roller bearing is a cylindrical unit that is used to provide low-friction movement for a bushing or bearing block. A ball bearing is a spherical unit that accomplishes the same objective as a roller bearing. The real difference has to do with the contact surface between the bearing and the rail.

What are the 2 types of bearings?

Rolling element bearings can be subdivided into two major types: ball bearings and roller bearings.

How much thrust can a ball bearing take?

Deep groove ball bearings can carry a thrust load up to 10% of the bearings rated load. Single row angular contact ball bearings can carry radial as well as thrust loads (thrust load in only one direction).