How to remove the bearing from the rear wheel of a bicycle

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 connecting rods. 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 are built into the frame tube, due to which 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.

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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.

The procedure for replacing the bearing of the rear wheel of a bicycle

The rotational motion of the wheel is provided by its axle. the hub. In turn, the hub works thanks to the hinge mechanism, which 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. In order to avoid backlash or deterioration of 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.
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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 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.

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 lubricating the bearings, because 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 do you need to disassemble and repair the front bicycle hub.

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.

Replacing bearings in a bicycle bottom bracket

Most often, the bearings are in the carriage, which provides rotation of the pedals relative to the bicycle frame. This unit is located at the bottom of the frame, it constantly gets dirty when exposed to water.

To get to the bottom bracket bearings, you need to turn the bike over and start removing both cranks. To remove them, unscrew the nuts on the wedges and remove the latter. If they do not give in, you should install a wooden strip to the threaded part and knock easily with a hammer. The next step is to remove the anthers and thoroughly clean them.

After that, in the grooves of the carriage, we install special keys that are supplied in the complete set, and we turn out the left cup, taking it out together with the bearing. On the other hand, we take out the bearing from the frame seat. After replacing the bearings, the assembly should be carried out in the reverse order.

After assembly, it is necessary to adjust the bearing assembly so that the connecting rods rotate freely and there would be no axial displacement.

To change the bearings in the front fork, the front wheel with the mudguard must be removed. Then we unscrew the head of the bolt that presses the steering wheel and, removing it, unscrew the lock nut.

Adjusting a cup & cone type bearing (rear wheel)

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There is a washer or lamppost underneath. Having removed the washer, we turn off the upper cup and get to the cage containing the bearing.

Some bicycle models have balls without a separator in the cups, because of this, when unscrewing the locknut, hold the fork by the crown so that it does not move away from the frame. this will prevent the balls from scattering. After removing the upper cup, the balls are poured by tilting the bike to one side, and the fork is removed from the head tube.

Having disassembled the fork, the cups and balls are washed with kerosene and wiped dry. Then the cups should be thickly greased with petroleum jelly. If there is at least one burst or rusty ball, change the entire set, since even an imperceptible difference in the diameter of the balls can lead to their rapid wear.

When assembling, the balls should be carefully placed in the cup track, which is filled with petroleum jelly, then carefully insert the fork rod into the frame tube and press the crown cone against the lower cup. After that, we turn the bike over and put the upper cup on the rod, placing the balls in it. We wrap the top cup, put on the washer and tighten the lock nut.

To adjust, check the ease of rotation of the fork and the absence of its vertical movement.

Having disassembled the pedals and twisting the cone, carefully remove the tube and get to the cups pressed into it. Having disassembled them, rinse the balls with kerosene and wipe them dry. Fill the grooves of the cups with grease and carefully place the balls, filling the circle on both sides. At the same time, we change the burst and rusty balls. We put the pedal on the axle, fix it with the pedal cone, put on the washer and carefully tighten the lock nut. Then we put on the cap, securing it with nuts.

To replace the wheel bearings, they must be removed from the bike and placed flat on paper. We turn off the left cone with an adjustable or cone wrench. In the case when he sits tight and does not want to turn away, we hold the opposite cone with another key, while unscrewing the adjustable one. After turning the cone out, take out the axis with another cone.

Having disassembled the cups, the cones, balls and the axis are washed with kerosene and wiped dry. We replace the bearings with new ones, setting the cage with balls towards the treadmill. We collect the bushings in the reverse order.

How to Change Bearings in Stans Bicycle Hubs

How to change a bicycle bearing

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.

Types of bicycle bearings

According to the type of construction, parts are divided into two types: rolling and sliding.

Rolling bearings are two mating parts with grooves, into which rolling bodies are inserted. balls. Their even distribution helps to minimize friction in the assembly and, consequently, to extend the life of the entire bearing. The fixation of the position of the balls is ensured by special partitions. separators. Simple parts without baffles will require more frequent adjustments.

Rolling bearings on bicycles are divided into two types: cone-cup and industrial.

The first. bulk bearings. are open-type parts. They are represented by a cup in which balls are distributed along the groove, fixed with a cone nut. The body is pressed directly into the part itself. the steering column or the bottom bracket.

Prom bearings are closed parts, completely inserted into the movable unit. This is their fundamental difference from bulk. The system is protected from moisture and dirt penetration, resulting in a longer service life compared to cone-cup designs.

Bicycles have become a part of our reality, and therefore, knowing how to change bearings in them is extremely important for most cyclists.

The bike is not complicated, so its repair is within the power of any person, even completely unfamiliar with the technology.

The most vulnerable parts of this vehicle are the bearings, so we will describe in detail the procedure for replacing them with new ones.

There are several bearing assemblies in a bicycle. in the front and rear wheel, in the right and left pedals, in the carriage and in the front fork.

Bicycle Rear Wheel Bearing Replacement

The rotational motion of the wheel is provided by its axle. the hub. In turn, the hub works thanks to the hinge mechanism, which 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.

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Bicycle hub repair

Bicycle bushing repair and bulkhead is one of the most common requests of biking enthusiasts. After all, this is the most loaded bearing unit and it is subjected to shock loads, and the bearings to friction, and the direction of the force applied to the wheels is constantly changing. over, the bearings of the bicycle hubs are subject to corrosion and dirt ingress. Axles, pawls, balls, cones and other parts are often destroyed. All these factors make the request for maintenance and repair of bicycle bushings one of the most popular, while the fact that the wheels primarily affect the driving performance make the work of our bicycle mechanics responsible.

1) Repairing the rear hub of the bike

a) Repair and overhaul of the rear hub of a high-speed bike (less than 8 speeds)

As a rule, in inexpensive bicycles there is a system where the cassette is threaded onto the rear wheel hub flange. Such bushings (tapered bearings) are the simplest and most unreliable.

A bulkhead with a lubricant change costs from 600 rubles.

But practice shows that, as a rule, such bushings need the following repairs:

Axle replacement. 600 RUB plus the cost of the axle 200-300 r.

Replacement of cones and bearings 600 rub. plus 200 r.

Attention. Please note that at 15% of calls, the destruction of the support part along which the balls move, in such cases it is necessary to replace the entire bushing as a whole (in rare cases, it is possible to press in a new support part)

b) Repair and overhaul of the rear hub of a bicycle type Shimano (8 or more speeds) with a tapered bearing

Such bushings operate on 4 bearings (2 support, 2 drum), and all of them are adjustable conical in design. The most common problems. backlash (as a rule, cones are destroyed along the way), drum backlash, drum scrolling (lack of engagement)

A bulkhead with a lubricant change costs 600 rubles.

Replacing the axle or cones 600 rub. (plus the cost of parts from 200 to 600 rubles.)

Drum bulkhead with lubricant change and backlash adjustment 1200 r.

Attention. Please note that there is always residual play in the drum. Also, it is not always possible to restore the working capacity of the drum (its engagement), sometimes it is easier and cheaper to change a part (drum or sleeve) for a new one. It is also possible to destroy the support part of the left bearing (it happens extremely rarely, as a rule, on rolled wheels)

c) repair of the rear hub with industrial support bearings.

In such bushings, support bearings. industrial drum bearings are made according to the Shimano principle. For example, such bushings include some models (in order of prevalence) SunRingle, Novatec, Choosen, Mavic, DTswiss, Fulcrum. As a rule, these are inexpensive bushings with a price of up to 3000 rubles. or used in wheels with a price of up to 10,000 r.

the price of work is 400-700 rubles, plus the cost of bearings (about 300 rubles per piece)

drum bulkhead price with lubricant change and backlash adjustment from 1500 r

d) repair of bushings on industrial bearings.

As a rule, these are expensive products. Usually in their design there are two support (less often three) bearings and two drum bearings (one may not be industrial, but for example a sleeve bearing like a Mavic)

The bulkhead of such bushings is reduced to replacing worn-out industrial bearings and replacing the lubricant in the gearing mechanism. dogs (Mavic, Fulcrum) or other solutions (DTswiss, AmericnClassic)

How To Replace Wheel Bearings | Halfords UK

e) repair and overhaul of planetary bushings.

Recently, dozens of structures have been created, which differ from each other in the principle of lubrication, the principle of assembly. disassembly and switching. As a rule, planetary structures are quite reliable and therefore their owners rarely bother themselves with preventive maintenance.

Thus, before diagnostics and in half of the cases before disassembly, we cannot accurately determine the cost of work.

As a rule, changing the lubricant (with a complete flushing of the mechanism) solves most of the problems: fuzzy shifting, clattering, clicks, and so on. The cost of work is from 1300 r

Complex work associated with changing parts and grinding working surfaces cost from 1000 rubles

2) Repair of front bicycle hubs

a) Repair and overhaul of front Shimano type hubs with tapered bearing

In general, front hubs last significantly longer than rear hubs and require less attention. Nevertheless, a bulkhead with a lubricant change costs 600 rubles in our service.

Replacement of spare parts is rarely required, as a rule, the cone and the axle cost from 200 to 400 r

b) Repair and overhaul of front bushings on industrial bearings

The most reliable class of bicycle hubs. They rarely require attention and the cost of repairs is not great. from 500 r

As a rule, there are 2 bearings in the bushings that change every 3000-10000 km.