Hub rebuild – cone dust cap conflict, hub integrated vs pressed on cone?

Asked by: Jeff Hartley

How tight should hub cone?

For quick-release type hubs, snug the cone down until it contacts the ball bearings, and turn back counter-clockwise one quarter turn (90 degrees). This will purposely make the bearing adjustment too loose. Hold cone with cone wrench and tighten locknut fully.

What is a cone hub?

A cup and cone hub makes use of loose ball bearings and allows you to easily adjust bearing tension, unlike most sealed bearing hubs that don’t allow for any adjustment.

How do you tighten a cone hub?

Quote from video: Tighten. Down the lock nut by hand onto the cone. If done right the axle will feel a little rough at this point. Now use your cone wrench to tighten the cone against the lock nut. It should be tight.

How do you service cup and cone hub?

Quote from video: Slide the cone spanner onto the cone itself. And then put the other one on the lock. Nut. Hold the cone in place and unscrew the lock nut. Anti-clockwise.

Why does Shimano use cup and cone bearings?

One of the main reasons why Shimano continues to use cup and cone is the ability of the bearing to “displace axial and radial loads effectively”. Subsequently, there’s less stress on the bearing system when the bike moves from side to side.

What can I use if I don’t have a cone wrench?

You can purchase a cone wrench at most bicycle shops, but if you are a all about DIY, then you can also make your own using nothing but an angle grinder and an old box wrench like the one shown in this photo. A bicycle axle cone nut is actually a threaded bearing race.

How long do Sealed bike bearings last?

How long does a wheel bearing last? Wheel bearings have an average lifespan of 136,000 to 160,000 km (approximately 85,000 to 100,000 miles).

Are cup and cone bearings good?

The principal advantage of a cup-and-cone hub bearing system when compared to a cartridge system is that it is serviceable. When a cartridge bearing has worn out, it must be thrown away and replaced. This, however, is a simple process and so not altogether a bad thing.

What does cone bearing mean?

Definitions of cone-bearing. adjective. of or relating to or part of trees or shrubs bearing cones and evergreen leaves. synonyms: coniferous evergreen. (of plants and shrubs) bearing foliage throughout the year.

How do you tighten the rear wheel cones?

Quote from video: Screw the cone in or out to tighten or loosen the bearing on the freehub. Make small adjustments and check the bearing between. Each.

What part prevents correctly adjusted cones from moving?

Most cup-and-cone hubs use thin locknuts to secure the cones in place: the cone and it’s locknut are tightened against one another, usually with a washer in between them. This keeps the cone from going out of adjustment.

What is a hub cone spanner?

A cone wrench or cone spanner is a tool used in bicycle assembly and maintenance to adjust the cones of cup and cone bearings. Cone wrenches are thinner and lighter than most other open ended wrenches that are used to work on bicycles.

Do Shimano hubs have sealed bearings?

Shimano hubs are sealed hubs, just as cartridge type hubs are “sealed” in one way or another.

Are Shimano hubs sealed bearings?

They are both sealed. High grade shimano hubs are actually pretty well sealed. I can see cone nuts in that picture, so its loose bearings.

How many bearings does a Shimano freehub have?

The bearings in a Shimano rear hub are ¼” in diameter and each race contains 9 bearings.

How tight are cone and cup bearings?

Quote from video: Exactly this is likely to be somewhere between 30 millimeters and 16 millimeters hold the axle still with an axle vise and turn the lock nut anti-clockwise to unlock the bearing.

How tight should bearings be?

For context, the tolerable end-play for truck wheel bearings is the same: 0.001 to 0.005 inches, also expressed as 1 to 5 mil or 0.025 to 0.127 mm. In other words, it’s perfectly acceptable to adjust wheel bearings so that they are just a little bit loose, but not too loose.

How tight should bike axles?

How tight should my thru axle be? Typically, thru axles should be tightened to 12-15Nm (Newton Meters) of torque. This is just enough torque to secure the axle so it does not come loose while riding. You should never tighten your axle as tight as possible.

How do you tighten the rear wheel cones?

Quote from video: And remove the play from the cones on the hub. We're going to need a couple of tools first up one of these which is a cone spanner. They do come in different sizes depending on the size of the actual

Why does my rear wheel not spin freely?

It might be that the hub is seized up from rust. You can check if it is the brake or not by loosening the caliper and spinning the wheel. If it spins freely it is the brake not the hub. If it is the hub you might need to get it regreased.

How tight should rear bike wheels be?

You want your rear axle very tight. 150 in/lb is about standard. If it is not tight it will allow the rear wheel to move around and it ties your rear triangle together. Basically the whole back of the bike will feel sloppy.