How to assemble the rear bicycle hub?

Some people prefer cars, while others are more like two-wheelers, in particular bicycles. They do not necessarily acquire a helmet, both for motorcycles do not need law, registration certificate and other documents. But there is something that unites them all - the need for repair. And often lovers of active or extreme sports are faced with the need to repair the rear bicycle hub.

Experienced bikers prefer to make repairs on their own. This allows you to not only save money, but also gain additional skills that have never and no one has not prevented. Although the bike is not such a complicated structure as a motorcycle or even a car, however, not everyone will be able to quickly disassemble it, and then carry out the correct assembly.

What is the wheel?

Wheel of any classic bike consists of the following components:

• of the sleeve;
• spokes;
• rim;
• bus.

The sleeve is a central portion through which the torque. To it usually mounted brakes. From the constructive point of view the rear bicycle hub apparatus is somewhat more complicated than the front. In addition, not every product can be disassembled independently, as special tools and equipment are required for some bushes. In addition, we need certain skills and knowledge. Usually the sleeve is connected to the rim by spokes, that the stiffening construction of the wheel.

type of bicycle hubs

Quality and reliable sleeve able to minimize friction during movement of the bicycle. This, in turn, leads to improved rolling performance. There are a variety of plugs, depending on the varying characteristics:

• location;
• the method of fixation;
• type of brake;
• the raw materials used;
• the number of spokes;
• dimensions.

In addition to the two-wheeler front there is a bicycle rear hub. And the first is simpler, as only responsible for mounting and rotation of the wheel. On the back of the sleeve has fixed ratchet and cassette. Ways to fix the sleeves only two. The first one is the simplest and at the same time cheap - just two nuts for the key by 16. Another way is even easier, but more expensive - the use of an eccentric. To remove the wheel, you need to pull the handle mechanism. The process takes place in a few seconds. The cams are used in the production of virtually any modern bicycle.

With regard to the braking system, some rear sleeve bicycle are compatible only with rim brakes type V-brake. There are bush and a variety of drum brakes. But nowadays this phenomenon is very rare and does not occur in each city bike. The stronger sleeve, the longer its life. But here there are features of the application of each material. Steel structures are inexpensive, but are subject to corrosion. Aluminum counterparts, on the other hand, are more expensive, but are more resistant to rust. Thus, here everything depends on the financial possibilities.

The number of the spokes of the wheels, according to a widespread standard, can be 32 or 36. The minimal number wheel makes easier, but less tough. Conversely, the more spokes, the wheel harder and stronger. It is important that both the rim and the hub are designed for the same number of spokes.

The relative sizes of sleeves - it all depends on their diameter. The higher it is, the stronger the part, but the weight is too large. The diameter of the standard bicycle rear hub is 9 or 10 mm. A more intensive and extreme use of two-wheeled transport suitable products with a diameter of 14-15 mm. As for the length, then it is equal to the front bushings 108-110 mm. While the rear have a greater length - from 135 to 146 mm.

When needed repair sleeve

It is unlikely that someone came into our heads just pick up and remove the wheel. Unless the person who specializes in disassembling bicycles. In all other cases, the reason should be because the defective mechanism once again it is better not to meddle. A malfunction of the sleeve can directly serve the following symptoms:

• When driving a bicycle wheel noticeable backlash.
• In some cases, I heard a distinctive crunch, indicating worn bearings.
• The shakiness of the hub body and the publication of their screen while driving.
• The deterioration of rolling dynamics.

Looseness and scroll housing of the rear wheel of a bicycle hub, in fact, is not a particular problem. In this case the fixing elements is sufficient to tighten. But do not overdo it (which sometimes happens), as if the nuts too tight, the wheels will be considerably more difficult to rotate. Bearing failure is readily determined by the deterioration degree of overrun and extraneous sounds. Sometimes, this may indicate a lack of lubrication or total lack thereof.

A common fault

The most common fault is the rear wheel of a bicycle sleeve is loosening or tightening it. Weakening leads to the appearance of the wheels backlash that eventually, if no action is taken, can be increased. As a result, it may cause deformation, with both the sleeve and the wheel.

With a strong tightening cone rear bicycle hub speed its movement will be greatly hindered. It is possible that in this case, the bearings can start to publish a crunch, which is not good. In some cases, the sleeve can be bent or even broken. For the most part this is happening due to the fault of poor-quality parts, and to solve the problem can only be replaced by a reliable option.

Maintenance

As with cars, the bike also needs regular maintenance. This applies to all parts of the sleeve and in particular. It is desirable to inspect every two thousand kilometers. But here, in contrast to the four-wheel vehicles, there is nothing to measure the distance traveled. Therefore, in the case of an active drive to carry out a planned diagnostics should be not less than once every three months. With less intensive use can be even less. If the wheel for a long time is not maintained, it is not surprising that soon the rear bearing sleeve bicycle brake will literally crumble. Regular lubrication of parts - is a guarantee of their life expectancy.

Also, regular maintenance includes:

• periodic tightening of the hub body so that it does not stagger;
• the replacement of balls bearings with high degree of wear and tear;
• lubrication of all parts without exception, from the inside;
• if necessary adjust the brake pads.

Remove the whole wheel is much easier than to dismantle only one sleeve, but not always required. However, when the need to replace the entire body, without the complete disassembly is indispensable.

The process of dismantling of the rear wheel

The whole process can be represented as a simple operation. Only first have to remove all hinged items that have. Mirrors, lamps and other necessary little things and accessories can interfere with work. In addition, they can be damaged accidentally.

Further steps in the repair of the rear sleeve bicycle:

• The vehicle flipped up the wheels, placed on the seat and steering wheel. You can use for this purpose a special stand, and you can do without it, it is important to ensure that the bike stable position.
• Next, you need to determine what type of brakes. With Disc Brake wheels are removed easily. If this rim brakes V-brake, you first need to loosen and remove them, or dismantling of the wheels is not possible. To release the brake, it is necessary to push the cable into the side of the fixing screw and take it out of the clamp. Lowering it down, pads breed apart.
• Now you should pay attention to the rear wheel on the axle is fixed. If this nut, they unscrewed one or two appropriate keys. If this mechanism is eccentric, it is sufficient to loosen the brake lever and twist the wheel.
• In the future, required careful and orderly, remove the chain.

That's all - wheel dismantled, and we can proceed to further work on dismantling and assembling the rear bicycle hub, maintenance and repair of parts.

Repair and maintenance of bicycle hub

For repair sleeve successful reassembly is best done on the removal of the wheels, but without disassembling the spokes. The process steps are as follows:

• C-axis cartridge is removed by using the special tool (stripper or whip).
• Opens the retaining ring.
• Remove the washers and bulk bearings (prompodshipniki). The main thing - remember the location of parts, then to make the correct assembly.
• Diagnostics bearings. Defective parts are replaced with new products. If they have not worn out, it is necessary to clean them of dirt with a solvent.
• Canceling all axis.
• Cleaning the body from impurities. For this purpose we use only a soft cloth, wiping it each cavity.
• produced consistent lubrication of all the elements. First, a small amount of the substance distributed along the walls of the housing. The bearings can be lubricated with abundant.
• The final process of repair of the rear wheel of a bicycle hub. Installation is in the reverse order, including the installation of the stop and the tightening of fasteners.

Tightening the rear wheel hub, do not exert too much effort. Cyclists should move freely and not be dragged barely.

Basic troubleshooting

All faults must be rectified immediately to avoid bad consequences. To remove slack, will need wrenches. Basically it is a conical tool 15 and the open-end wrench on the 17. You must first loosen the lock nut and then, depending on the situation, loosen or tighten the flare nut. Ideally there should be no play at all. After manipulation of the cone attachment member should set the lock nut in place. On proper adjustment nut cone would indicate slight rotation of the wheel due to gravity, the perceived reflectors or nipple.

Caution - first and foremost!

It is worth noting that in the sleeve design has a lot of small details. Typically, they are made either of reinforced steel or hardened chromium-molybdenum alloy. This gives details of fragility, so you should always act with increased attention and care.

When carrying out scheduled maintenance and service of the rear bicycle hub "Stealth" do not forget about safety. The rationale is to protect your eyes. We make repairs, it is not recommended to remove the wheel spokes. You also can not use a vise against the sleeve and its components.

The process of installing the rear wheel

Correctly perform the rear wheel installation will clearly follow the reverse order of actions during dismantling. To do this, we adhere to the following algorithm:

• The chain is put on a star of smaller size. After that, the wheel is inserted into the body mount bicycle. It is important to ensure that the axis finally entrenched in the grooves of the frame.
• The next step is to tighten the screws or cams to the specified torque to the wheel and then can not escape from the frame.
• If a bicycle rim brakes are used - it is a further step. Home, fasten them strictly in reverse sequence. Otherwise, the trip will be not so safe.

After wheel installation, you must make a small test bike to test the operability of all components. Do not neglect the maintenance of all parts and mechanisms of the bicycle. After all, the only way to prolong their service life.

To summarize

How to assemble a bicycle rear hub? The answer is simple: maintenance of essential bicycle parts, especially the back, which is not such a difficult job. Particularly large investments are not needed. However, if a long time to ignore the service, as a result of the final repair can result in a rather tidy sum. In some cases, it will be easier to buy a new bike.