When to change the bearing
The task of the bearing is to fix the parts and the correct functioning of the mechanism, allowing, for example, to smoothly rotate the pedals. Most often, the carriage is damaged. the assembly that includes the pedals and cranks. In case of failure, the bearings located in the carriage will interfere with the operation of the pedals.
The type of carriage of the bicycle directly affects the operation of these parts. The mechanism can be open or closed. The closed carriage protects the bearings from external influences, dirt does not get on the part and does not spoil it. In the open carriage, the parts are in cups, which are placed in the carriage glass and built into the frame tube, so that the carriage rotates. The mechanism is complex and subject to external factors more than any other part of a bicycle. This leads to frequent replacement of its components.
Let’s figure out what certain types of bearings are intended for, the principle of their operation.
The procedure for replacing the bearing of the rear wheel of a bicycle
The rotary motion of the wheel is provided by its axle. the hub. In turn, the hub works thanks to a hinge mechanism that is built into it and ensures uniform transmission of forces and movement of the bike. Bearing wear affects the bike’s performance negatively and prevents the mechanism from functioning.
Disassemble the hub to lubricate and replace worn bike bearings. With the rear wheel, you have to tinker a little, because in order to get to the hub, you first need to remove the cassette with sprockets. In the case of single-speed bikes, you also need to dismantle the retaining ring and the sprocket itself.
The rear wheel disassembly procedure is as follows:
- Disassembly. First, remove the wheels from the dropouts. Using a cassette remover, we disassemble the stars. Open the stopper with a screwdriver or a special tool. Then, from the side opposite to the stars, unscrew the fastening nuts using a 15.
- Replacement / cleaning. We remove the bearing assemblies and washers. We sort out the separator mechanism or change it to an industrial one. We replace industrial bearings with new ones. We clean the parts or replace the damaged components of the assembly. When replacing cage bearings, lubricate the assembly. When installing industrial ones, we lubricate only the inner sides of the bushing and the axle. Important: if you are replacing worn-out parts with new ones, select them with the same characteristics as the old ones.
- Assembly. We do everything during disassembly in the reverse order. Consider the importance of correct fitting of parts. Pay attention to this when disassembling. To avoid backlash or deterioration in the quality of the wheel, all parts must be installed evenly, without distortions, exactly in the location in which they were originally. After assembly, it is necessary to check the functionality of the wheels. If the parts are installed correctly, this will be evidenced by smooth running without backlash.
Bicycle Rear Wheel Bearing Replacement
A bearing is a part that ensures the performance and fixation of the moving parts of the bike. This element is present in all designs that ensure the mating of parts or rotation of the mechanism. If a part fails, replacing the bearing of the rear wheel of a bicycle will not cause you any difficulties, but you need to understand the nuances.
Rear Wheel Hub Parts Overview
To maintain the part in proper condition, prophylaxis in the form of regular lubrication is necessary, as well as timely replacement. When replacing a bearing, it is important to select the correct product for the given assembly. It is equally important to pay attention to quality, appearance and other characteristics. If you make a mistake by installing the wrong device, the entire bike may break down, and this is a direct threat not only to the vehicle, but also to your safety.
Main types of bearings
The main differences between parts. by type of structure: rolling and sliding.
The sliding bearings are driven by the process of rotation of two elements relative to each other tangentially. Parts are made from materials with a low coefficient of friction, such as steel alloys, bronze and others. Two bearing parts are in direct contact with each other, so this mechanism is more prone to abrasion than rolling bearings.
A feature of rolling bearings is the presence of balls (rolling bodies), which are placed between two rings. They are used in such movable bicycle structures as carriage, bushings, steering column. For applications where pressure and abrasion resistance is an important requirement. There are two main types: bulk (separator) and industrial.
The separator is an open mechanism. It is a cage in which the balls are distributed along the groove and fixed with a flare nut. The mechanism is placed directly in the workpiece, for example, in a carriage mill. Advantages of this type: easy removal and installation, which allows you to adjust the mechanism even in the field; the components of the mechanism can be replaced separately. However, the cage bearing requires frequent adjustment and cleaning of the mechanism from clogging.
The industrial one is characterized by a closed mechanism that fits completely into a movable unit. The system provides protection from external influences in the form of dirt, moisture, which significantly extends the service life of the mechanism. Clogging does not get inside an industrial bearing with a closed housing, the lubrication is permanently retained. This mechanism does not need adjustment. If necessary (wear, breakdown), the entire bearing is changed, which is problematic to do in the field. And industrial mechanisms are also distinguished by a higher price.
It is worth noting one more type of bearings, which are made of ceramics or cermets. They are highly resistant to wear and corrosion, temperature changes. These parts can be found in high-end bicycle mechanisms.
Replacing the bearing on a speed bike
The hub is a part that should be inspected at least every few months if you are actively using your bike. One of the signs that it is time to sort out the hub is a wheel creak, a decrease in the efficiency of rotation. everything that affects the quality of the bicycle.
The reason may be backlash or insufficient lubrication of bearings, wear of parts. Replacing the rear wheel bearing on a speed bike is slightly different from the steps for a regular bike. To gain access to the parts, it will be necessary to dismantle the rear speed device.
Bicycle rear wheel with speed device
The reverse gear can be removed using a puller and a whip. The procedure is as follows:
- To begin with, insert a puller into the cassette nut. In this case, the large star must be held with a whip to avoid turning it.
- We unscrew the slotted nut with a puller, which we rotate with a wrench.
- We take out the small stars and washers and set them aside. Then the cassette itself is removed.
In order to disassemble the hub, you need to slightly reduce the tension of the spokes using a key with knocked out holes for different diameters of the spokes. If it is planned to replace the bushing, then we reduce the tension even more so that the bushing is out of the gearing. Often, you can only do with lubrication of the bearings, since with proper lubrication, the parts will last a long time even with active use of the bike. The axle and bearing balls are first cleaned of dirt, placed in a solvent. Then the parts are allowed to dry, lubricated and returned to their place. It is necessary to check that all parts are installed in a straight position, for this skewed parts are adjusted.
As a summary, a safe ride will be ensured by a good ride quality of your bike. They, in turn, directly depend on the condition of the bearings, their timely maintenance and replacement. That is why it is important to pay enough attention to the maintenance of this mechanism.
How to properly remove, disassemble and reinstall the rear drive wheel. Removal sequence and installation of the rear wheel.
A bicycle is a complex machine where the wheels are the key components. Correct rotation of the front wheel also depends on the hub connecting the rotational component to the frame. That is why it is important to figure out what stages involve the disassembly and repair of the front bicycle hub with your own hands.
How to properly remove, disassemble and install the bike cassette. Varieties of cassettes, their maintenance and repair. The sequence of dismantling and installing the cassette on the bike.
Bearings are support devices for the moving parts of a bicycle. They hold the parts in place and help the mechanism to function properly, making the pedals rotate smoothly, for example. The rest of the components of the bicycle structure work in the same way.
Since bearings on a bicycle can be in different places, the principle of their operation is different, which means that before changing them, you need to know what types of this product are. They are divided into three types:
Let’s dwell on the extreme option. In total, two types of rolling bearings are used for a bicycle: a cone-cup (or bulk) and non-separable, which are called “cartridge”.
Bulk consists of a set of balls and a cup built into the bike. Cartridge are two rings with balls. They do not need adjustment, since such bearings just need to be changed if the need arises.
how to replace bearing on any bike
Disassembly and assembly of the carriage
Sometimes you have to disassemble the open carriage in order to clean it, lubricate it and change the bearings in the bike. This is due to dirt on the cartridge, as well as due to wear, which can cause accidents while riding a bicycle.
To replace the cartridge, you need to bring the bike upside down and remove the cranks. Start with the nuts, unscrew them with a wrench and fold them neatly in one place. Do not press hard or use tools that could damage the bike, even if the nuts become tight. You need to act gradually and carefully. To remove the connecting rods, a squeeze and a puller are used. A special puller is also used to remove the carriage, but it must be removed strictly from the left side, away from the stars of the connecting rods.
Then you need to clean the carriage glass, in the future this will save the bearings from the harmful effects of dust and moisture. Next, get down to the cups, they need to be pulled out using the keys inserted into the grooves of the carriage, then take out the bearings and replace them. Assemble the knot in the same way as you took it apart.
After assembly, check that the assembly is functioning properly, the connecting rods rotate without effort, and the axle is not misaligned. If problems arise, you need to disassemble everything again to rule out the possibility of a serious error.
Replacing the bearings in the carriage
The most susceptible to damage is the crank and pedal assembly. It is called a carriage, and the bearings that are located in it can accommodate pedaling if they no longer meet the requirements.
The carriage of a bicycle can be open or closed; the operation of the bearings depends on its type. For example, the open one rotates thanks to the bearings in the cups installed in the bottom bracket and built into the frame tube. This is a complex unit, since it is subject to external influences more than other parts of the bicycle, which means that they need to be changed often. The carriage cup can have different sizes and threads depending on the type and model of the bike.
In closed carriages, the bearings are protected, so dirt from the street cannot spoil them.
How to change bearings on a bicycle
All decent bikes must have quality bearings. They are located in several nodes and may differ from each other. So, some of them are for plugs, others. for pedals, so both the carriage and the wheel can be disassembled. So that the products do not deteriorate ahead of time, you need to regularly lubricate them, as well as replace them. over, install exactly those bearings that are needed in this unit.
It is important to pay attention to quality, appearance and other characteristics. If you make a mistake by installing the wrong device, the entire bike may break down, and this is a direct threat not only to the vehicle, but also to your safety.
Replacing the bearings in the front fork
Loose bearings look like balls moving in a wheel hub. They roll along the groove and create support. The number of such balls is always certain, therefore, during their replacement, it is important not to lose a single one, and also to change the entire set if at least one of them has worn out ahead of time. If you don’t know how to change bearings on a bike but would like to do it yourself, take note of the following advice:
You will find balls under the cup. Be careful not to crumble during the process. It won’t be a problem if your bike has a separator cup.
After carefully pouring them out of the cups into the glass so as not to get lost, remove the plug. The cups should be rinsed well to remove dirt, just like the balls. Be sure to dry them or wipe them dry, as moisture affects the device negatively. The balls may rust or deform and will need to be replaced. You cannot use them even if only one is damaged. In this case, you will need to replace everything with new ones. Use grease for the cups, grease the axle as well. Only then reassemble the structure in exactly the same way as it was disassembled.
We disassemble the ZOOM shock absorber ourselves
For such a repair, we need to have some tools. Take care of the different screwdrivers in the set, you will need to use adjustable and wrenches. Use a hex wrench and a small hammer.
Clean and lubricate all parts. To do this, use a can of grease, soft rags and do not forget to use gloves.
How To Change The Bearings In Your Mountain Bikes Front Wheel | MTB Maintenance
Remove the front wheel from the beginning. The bike is turned over with the wheels up, the brake rims are unclenched, before that the clamping bow is folded back. The wheel can be removed immediately after removing the discs. Remove the wings and all existing devices at the same time.
Next, put the bike on the wheels. Take out the steering wheel, the steering column is removed from the glass.
The reasons for the creak of the bike fork ZUM
A squeak in the steering column of a bicycle, a knock, all sorts of bumps while the bike is moving means worn out parts, possibly water and dirt, there is no lubricant inside.
- All impurities are removed from the inside.
- The fork legs are gently wiped, the spring with seals should also be in order.
- In case of malfunction, we replace worn parts.
During an external examination of the steering column of a ZUM bicycle, the fork legs are checked for external damage. Oil seals and anthers should not have mechanical damage, oil does not flow.
Check the pressure in the air chamber, and what is the condition and presence in the lateral backlash.
How are the bolts in the pants of the forks and adjusting knobs attached?
How is the column in the handlebars of a ZOOM bicycle
In what queue do we collect the fork in the ZUM bike?
First, look at the ring in the bearing. Damage and broken edges are not allowed. If such things are present, the ring needs to be replaced.
- The ring is put on the joint on the fork at the steering column.
- Use an adjustable wrench and grab it from the outside.
- Use a hammer to gradually press in the ring using light blows on the key jaws. Listen for sounds, when the sound is weak and quiet. press on. And if there is a strong sound, then you have put the ring on your landing point.
- The locking surface is lubricated with lithol, bucket or other special compounds.
- Place the bearing on top of its balls. Apply lubricant here. Place the seal washer underneath the bearing part.
- Insert the stem onto the glass and do all the removal work in reverse order.
To iterate over a spring-type damping fork:
- Unscrew all fasteners from the bottom. Apply a hex wrench.
- The main regulator in the shock absorber stroke has an adjusting bolt in the spring compression.
- Now get rid of the damper, or elastomer stopper.
- Take off your so-called pants. Get rid of the seals from them.
How to make repairs and replace the bearing on the handlebar column in a ZOOM bicycle
The steering mechanism in a bicycle depends entirely on the condition of the column, the so-called fork. The whole mechanism consists of a certain set of elements. When it breaks down, movement is impossible.
In this article, we will look at how to replace damaged bearings on the steering column of a ZOOM bicycle yourself.
Signs that determine the removal of the fork from the ZUM bike and check its functionality
The front shock absorber system is designed so that there is a spring made of metal and a damper made of rubber. The shock absorber’s performance is affected by shrinkage in the spring and when the rod is elongated elastomeric. All of these elements have a bad effect on the properties in the shock absorber, which becomes very hard. The setting does not affect the sound of the fork when passing obstacles.
If the steering wheel turns very tightly, there is a play, which means that the bearings are worn out, and the O-rings have become unusable. Check the inside of the plug for dirt, this also matters.
When the bike is in motion and you hear an abnormal grinding sound, it may need to be coated with lubricant and may need to be removed.
Any mechanical damage provides for unforeseen breakdowns in the entire system. If you find cracks on the top of the body and in the legs of the fork, it will have to be replaced.
Enter the mark or size (for example: 8227) of the product and the country of sale
Enter the mark or size (for example: 8227) of the product and the country of sale
The need to replace the bearing
The main task of the bearing is to fix and correctly work the unit.
In this case, the bicycle pedals should rotate smoothly.
The carriage very often fails. This is where the pedals and cranks connect. A bearing failure in this assembly will make driving impossible.
Depending on the type of carriage of the bicycle, the work of the parts may be different.
When the carriage is closed, sand, dirt, water and dust will not get inside. This does not lead to a decrease in the life of the part.
There is an open caret type. The device is complex. All carriage products are inserted into cups. They, in turn, are in a carriage glass. This is all built into the tube of the bicycle frame. This is how the rotation happens.
The specified type of knot is vulnerable during operation, much more than other parts of the bike.
Therefore, it is necessary to frequently change the bearing.
Let us now consider the purpose of the bearing, its classification and the principle of rotation.
What are the bearings
Bearings are of different types: sliding and rolling.
The principle of operation of sleeve bearings is when two elements rotate tangentially with respect to each other. A material for manufacturing is used, which has a relatively low coefficient of friction. This is mainly with a bronze and steel component. During operation, a bearing part rubs against another part and a workout is formed in the products.
A distinctive feature of the rolling principle is that they have balls. They are called rolling bodies. These balls are located in the inner rings.
This type of bearing is applicable to bike carriage assemblies, bushings and steering columns. The fundamental feature is that there must be strength and abrasion resistance.
Distinguish also parts according to the separation method and industrial use.
In the presence of a separator mechanism, it implies the openness of the part. The device in the separator, each ball is in the groove and is fixed with a cone nut. The assembly is placed directly in the part. The advantage of this design is the relative ease of removal and installation of the bearing. This is especially beneficial for field repairs. Assembly parts can be replaced separately.
The inconvenience in it lies in the fact that it is necessary to adjust and clean it from dirt quite often.
In the industrial form of the bearing, it is enclosed directly in the space of the assembly. Due to the closed nature of the product from the environment, dirt, dust and water with sand do not get there. The lubricant is retained for a long time, while the service life is extended. There is no need to adjust this bearing. However, if the part fails, then replacement is more difficult. It’s hard to do this in the field. Well, the price is much higher than in the first option.
I would like to mention one more bearing brand that uses ceramics or metal ceramics. This material is highly abrasion resistant and corrosion resistant. Temperature drops are not terrible for him. These bearings are used, as a rule, in expensive bicycles.
Replacing the bearing of the rear hub on a bicycle with your own hands
After reading this article, you will learn how to replace a failed bearing on the rear hub yourself.
A bearing is a product that ensures the normal operation and fixation of the moving parts of the bicycle.
The specified part is present in all nodes that mate parts with the rotation of the mechanism.
Step-by-step instructions for replacing the bearing on the rear wheel hub
The bushing (axle) allows the wheel to rotate. It rotates in the presence of a hinge mechanism. It transfers efforts from the muscular strength of a person and the movement of the bicycle occurs. When the part is worn out, the bike stops moving.
When you determine that the bearing is out of order, it needs to be replaced. In this case, it is necessary to disassemble the sleeve.
In the case of a rear wheel, it is more difficult with it. To get to the bushing, you need to remove the cassette together with the sprockets.
If you have a bike with one speed, then you need to remove the retaining ring and sprocket.
I advise you to carefully read the article and replace the bearing yourself. You do not need to contact professional specialists. you will need money. Better save and fix yourself.
You have decided to perform a replacement, then follow the instructions:
Installation is carried out in the same sequence as, and dismantling only the other way around. We pay attention to the installation of all parts without skewing. Backlash is not allowed.
We check the correctness of the bearing replacement. We manually scroll the wheel. If it rotates smoothly and quietly. you did everything right.
Replacing the bearing of the front hub on a bicycle with your own hands
This article will provide you with detailed instructions for replacing the bearing of the bicycle front hub by yourself.
Looking at the design of the front bike hub, you might think that replacing the bearing is a tricky task. However, it is not.
Removal and installation of the sleeve
Before proceeding with the repair, you need to remember the entire procedure that you perform.
No need to change parts to the other side. The cone and balls may not match in terms of production. The wheel will not rotate properly.
It is necessary to adjust the tightening of the bushing cone.
Install the wheel. Then shake it in different directions. Find wheel play. tighten the cone again.
Do this until you have removed all wheel play.
Check that the wheel turns normally.
Next, you need to install the boot, insert the eccentric, screw on the rotor, and install the wheel on your bike.
How to replace the bearing of the front hub with your own hands?
You just need to carefully read the provided article.
We carry out repair of the bearing of the front bushing
After prolonged use of the bicycle, the bearing or axle, as well as the balls and cone, may need to be replaced.
You can easily replace the bearing. And changing the cups will take some effort.
It is very difficult to get cups exactly the same as on your sleeve.
There is an option of purchasing a used cup, but of good quality. You can perform turning work and install your product.
Although you need to compare for the price. It’s probably better to just get a new part.
And yet, if you are replacing balls, change them all with a set.
How to Operate the Front Hub Bearing
I suggest considering the maintenance schedule for the front bike hub.
It is necessary to carry out prevention in order to exclude damage.
With standard preventive maintenance, it is necessary to clean the product from dirt, sand, dust. The bushing and bearing must be rinsed with kerosene or solvent and lubricated. Thus, you will not need to buy a new part for a long time.
It is necessary to change the lubricant after 5000 km, however, depending on the condition of the roads on which you operate your bike and the brands of anthers and seals, it will be needed earlier.
Sometimes you may find play when driving. Or grinding, howling. The wheel does not spin well.
When you find at least one of these reasons, urgently repair or replace the part.
We work with the inner space of the bushing
After the axle has been removed, you need to carefully inspect it. As a rule, this part of a bicycle wears out very rarely, but in any case, you will need to thoroughly wipe it off from dirt and dust. This is done with a dry cloth, but in some cases (with heavy pollution), you can use gasoline. So, we wipe the left cone and examine the right one for fastening strength. Only after the axle walls are completely dry (if gasoline was used for processing), can new grease be applied to it.
Note: in no case should you use chain lubricant or some other lubricant for the rear hub of the bicycle. you will need to purchase a special tool. Bearings are often used for bearings. this lubricant will be the most suitable. Too thick a layer of grease should not be applied. during the operation of the bike, it will be squeezed out and actively absorb dirt, which leads to rapid wear of the part.
The most common problems and how to fix them
If the bushing locknuts are not tightened sufficiently, then during the rotation of the wheel, the rear axle beats against the bearings. As a result, cavities appear on the tracks of the cones, and the balls are deformed. If the backlash is not eliminated in time, then chips will form on the cones and the inner surface of the sleeve. In especially advanced cases, the balls can even jump out of the tracks and begin to rotate inside the bushing, grinding the axle and destroying the hub, then you will have to replace the entire unit and re-spoke the wheel.
To avoid backlash, the cones must be correctly adjusted. To do this, you need to gradually tighten the flare nut, trying to find a state in which the wheel rotates freely without beating. When the correct position is found, lock the cone with the locknut. When locking the cone, the axle often starts to rotate, and the correct position is lost, so you can clamp the right end of the axle in a vice.
Bicycle hubs and rear wheel axle
When choosing a bike, many novice cyclists often look at the rear derailleur, frame, the presence or absence of a shock absorber. At the same time, insufficient attention is paid to such an important component as the wheel hub.
How to make a DIY replacement of the bearing on the rear wheel hub of a bicycle?
Replacing the bearing on the wheel hub is not very problematic.
Although you need a little skill or read my article carefully.
The reasons leading to the failure of the parts are different:
To keep the bearing always in working order, it needs to be maintained. Basically it is necessary to change the grease.
But if a bearing breaks down, it needs to be replaced.
When choosing a new product, you need to focus on the brand of the bike assembly.
By mistakenly installing a bearing that does not correspond to the bicycle’s passport, you risk your safety when driving.
Classification of bushings
There are two types of bushings. front and rear. The front is simpler and not subject to the same stresses as the rear, especially if a fork with a shock absorber is installed on the bike. The rear hub is used to transmit torque from the pedals to the rear wheel, the dynamic characteristics of the bike depend on it, so further we will talk about it.
Bicycle hubs vary in material and interior design. They usually consist of an axle, a hub with flanges to which the spokes are attached, and bearings. There are the following types of rear wheel hubs:
- Ratchet, in which a set of sprockets is combined with a ratchet mechanism into a single whole. Such hubs are often used on bicycles in the lower price segment.
- Cassette, in which a set of rear sprockets is installed on a special drum using a spline connection.
- Planetary with internal gear shifting, in which the gears are located inside the housing of the hub itself. They are heavy and expensive, but reliable and require little or no maintenance.
The first two types are most widespread, and planetary ones remain rather exotic, although they are often used in city bikes.
Ratchet hubs are cheaper, but less reliable and are considered outdated, so it is better to choose the cassette option.
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How to change the bearing on a speed bike
If you make frequent cycling trips, then you need to inspect it once a quarter. Hearing the creak of a wheel, do not wait for the inspection time. Be sure to repair or replace the bearing.
A distinctive feature in replacing the bearing on the rear wheel of a high-speed bicycle is that it is necessary to disassemble the speed assembly. Removal of the rear speed unit is carried out using a puller and a whip.
So you did it yourself with replacing the bearing of the rear wheel hub on your bike.
If at the same time you have any questions or problems with the repair. feel free to contact me in the Комментарии и мнения владельцев.