Bearing puller with their own hands: design and construction, drawings, types, materials and manufacturing process
Make a bearing remover with their own hands is easier to mechanical, because it is arranged more easily, is cheaper. In garages and car repair shops, this is the most common type of tool. It makes it possible to quickly change the gripping points, has a springing effect, which improves the operation of the pull.
In a set of tools, auto mechanics keep devices for the dismantling of various types of bearings. Specially designed repair equipment for this purpose is available for sale. But it is expensive, so many craftsmen make a bearing puller with their own hands.
Design and device
Bearings are found in the car in many nodes: clutch release, hub. The part is always “seated” very tightly, with an interference fit, and it is difficult to remove it during routine or operational repairs. Lubricators need to apply a great deal of force, which is made easier by auxiliary, often home-made, equipment.
Presser. not quite a simple tool, but by studying the technology and drawings of bearing pullers, with their own hands to make the mechanism in the garage conditions is possible.
Presser / presser for silent blocks and wheel bearings
Removers are a group of hand-held locksmith tools that help to remove a gear wheel, pulley, bushing, bearing without destructive consequences.
The principle of operation of the mechanism is to transmit a very high torque (sometimes. up to 40 tons) to the dismounted part. With all the structural diversity, pressers consist of two basic elements:
The mechanism works by means of a bolt (central body): turning it in or out releases the bearing from the bearing seat or presses it out.
Necessary tool
Before you get started, you need to have all the tools ready and assembled in one place:
- A special puller for removing the bearing.
- Screwdriver.
- 30″ head.
- Wrenches or socket heads for “17” and “19”.
- A drift for knocking out the hub.
- New hub bearings.
The tool is assembled and ready to use
Preparatory work
Take care that the workplace is well lit, and it is best if it will be on the observation pit or an elevator. Because only in this way is it possible to speak about high convenience in carrying out such works. It is also not superfluous to get acquainted with a detailed diagram of the bearing location on the front hub VAZ-2112.
Thanks to this illustration, the scheme is very clear.
Step by step procedure
The first thing to do is to immobilize the vehicle, apply the handbrake, and mount the wheel chocks if necessary. And while the car is on the surface, tear off all the bolts on the front wheels.
Remove the bolts that have been torn out and set them aside. Remove the wheel.
Next, we need to use a wrench “30” to unscrew the hub nut
Note that during its removal, you will have to depress the brake pedal, and for this we need an assistant. Then use a screwdriver to unscrew the calipers. When this operation is done, having at hand a wrench for 17, unscrew the calipers from the knuckles.
Then use a screwdriver to unscrew the calipers. When this operation is done, having at hand a wrench on “17” unscrew the calipers from the knuckles.
- Carefully unscrew the brake disk from the hub.
- Then loosen the hub by applying light strokes.
- And then unscrew the suspension nut from the bearing.
Replacing the hub bearing
Then, with the hub bearing fully accessible, there are various ways of replacing the hub bearing.
First method
In this case, you need to have a special puller to dismantle the bearing.
- First remove the stopper.
- Using this device, it is sufficient to remove the old bearing and replace it with a new one.
- After that, the entire reassembly process is carried out in the same manner as the removal of the hub.
- The advantages of this method include the fact that during these works there is no need to touch the wheel camber bolt, therefore, additional work you will not add.
- And the disadvantages of this method are discomfort during installation. Since you will have to get out of the way and take an extremely uncomfortable position.
The second way
To perform these works, you need to carefully dismantle the knuckle and completely remove the hub.
- Having moved to the workbench, we replace the hub bearing.
- To do this remove the circlip and knock the bearing out of its seat, or press it out.
- Then install in reverse order, preliminarily clean the hub surface.
Tip! Before proceeding to dismantle the camber bolts, mark their position with a marker or chalk. The marks should indicate the current position of the bolt on the rack and the previous position of the cams. These marks will make it much easier to orientate the position of these bolts during assembly. Although there is no way to return to the previous state, but to minimize it all the same will be possible.
Setting the marks
- Carry out the marking.
- Remove all the bolts from the cam.
- Remove the attachment bolts on the lower ball bearing.
- Thus, the bearing will be knocked out of the hub.
- Remove retaining rings.
- Press out the bearing.
- Assemble the new bearing, having previously cleaned the hub space and generously coated its surface.
This method of repair will be very effective when the repair is subjected not only a hub bearing, but also most of the chassis VAZ-2112. These items can include replacement of steering tips, silent blocks of levers and ball joints.
The third method
To perform works in this way it is necessary to remove all rack completely.
- Next, using a vice, we replace the hub bearing.
- This is the quickest and best way to do it.
After you disassemble bearings, install everything in the reverse order, assemble the rack and mount it on the car.
Make or buy a puller yourself?
If you have no desire to deal with knocking out the bearing, you can buy a special puller in stores, because the whole process of working with such a device becomes easier, and the time for work decreases. This also applies to assembly work.
What hub bearing puller to choose or how to make it with your own hands
A hub bearing puller is a specialized tool designed for pressing in and pressing out parts in the hub units of a car.
Since the bearings are mounted on the seating surfaces with interference, pressing or pressing them in requires considerable force on a limited area of the assembly. Conclusion. you need a reliable and universal tool for this operation.
With a wide range of hub unit sizes, there are many different types of hub bearing pullers (HBO). Choosing the right puller for bearing replacement is no easy task. Read the article to find out what you need to know. Let’s also talk about how to make the puller yourself and how to work with the tool.
Purpose and features of the device
If you hear a rumbling or grinding noise in the wheel well, it is an indication that the wheel hub bearing is broken. Repair or replacement of this unit should not be postponed. If you are not an expert in the field, then as soon as possible go to the nearest service station, where the machine will be examined and consulted.
However, it is not always possible to use the services of professionals, in some cases you have to do it yourself. One of the most complicated repair operations is the removal of bearings. This requires special tools.
The most primitive hub bearing puller is an item consisting of these elements:
The fixture has a movable connection and the gripping distance can be easily changed. It is possible to remove and fix the following by means of the tines:
If the tool has three tines, it has more possibilities, because the tines can be turned and used for the removal of internal parts. It is called an internal bearing puller.
The most universal tool is the combination presser that has the properties of both a two-fingered and a three-fingered tool. It is constructed with special clamps, by means of which damaged parts can be easily removed.
Assembly and disassembly of bearings requires manual tightening force to seat or remove an element. The success of the work, as well as your own safety depends on how right you choose the tool.
Puller of hubs and bearings for VAZ and LADA cars
To replace the front and rear hub unit on VAZ cars, according to the manufacturer’s recommendations, you need two types of pullers.
- Gripper tools are used to remove the ball bearing at the rear wheel.
- Cup types are used for pressing and pressing in front wheel bearing.
You can choose the models of these tools from the overview above. To choose a cup puller, focus on the outer and inner diameter of your bearings, but as a rule, it is enough to read reviews and get the seller’s advice.
For VAZ cars for example suitable model Force 9T0311, AV Steel AV-922722, MHRTOOLS MHR04039, NEO 11-829. Suitable for pressing bearings in the rear or front hubs, as well as in the knuckle. On the reverse side, insert the washer, clamp the nut, put the wrench on hold. Then turn the stem nut clockwise.
A simple puller for bearings with my own hands
To remove bearings quickly and without problems, you need a bearing puller. It allows you to dismantle them without damaging them, allowing their reuse. It is not difficult to make such a device of improvised materials, especially since all components can be easily found in your workshop.
What will be required:
From the profiled tube is cut off a billet length of 40-50 mm.
It must be drilled in the center with a 10 mm drill bit, making holes in the two walls.
On the remaining intact side walls of the workpiece must be cut part of the metal under the triangle. The direction of the notches should correspond to the kerf direction on the first side.
It is necessary to weld a nut on the remaining wall with a hole so that it is possible to screw a bolt into it. That is, it is important not to fill in the welding thread, and set the holes in alignment.
A nut is screwed onto the long bolt up to the stop in the head. It is then welded on. The enlarged head is drilled on the side. Edge of bolt is sharpened.
Now screw it into the base of the puller. Insert a bolt M6 into the drilled head of the screw, and put a nut on it to get a handle.
It remains only to put the puller under the bearing cut on the shaft, and then screwing the screw to squeeze out the latter. As a result, disassembly will only take a few seconds.
The bearing puller with your own hands
When repairing electric motors, apart from wrenches and a set of sockets, you must have in your own arsenal and a few pullers for tightening (removing) bearings. One universal just can not do. If you have electric motors from 1 kilowatt.
and up to 100 kW, then you need to have 2-3. I own two pullers for removing bearings. At the moment on the markets, there is a large selection of pullers and can be purchased there.
But at the same time, if there is a material, a lathe, gas and electric welding and desire, the puller can be made and the hands. And I assure you, it will serve you, even more than a dozen years. It’s better to make a three-jawed one, the most comfortable one.
I will also point out the dimensions of my own pullers, which have been tried and tested for repairs for a long time. Let’s begin with the small one, with which you can remove bearings from 202 to 308 size, large 317 and larger. We will need a sheet metal, width 10mm and metal kruglik a cross section of 30mm.
(For a huge metal 15 mm and 50 mm round shank). First we make a sketch (pattern) feet puller. The length of feet we do 200mm.
Further on the sheet metal on the pattern we draw an outline. We cut feet with gas cutter (propane and oxygen). After cutting workpieces we machine on a big emery wheel.
Self-made pullers for removing bearings
Evenly bring the size of the 3 legs to a similar. It is not necessary to achieve very perfect dimensions, the difference is 1mm.
The role of the negative will not be in the construction. When the feet are made and fitted, the highest part of the drill two holes (for a small expansion capabilities) cross, under bolts 8 or 10 mm (for a huge 12 or 14 mm. 3 holes) for fixing the foot to the core of the puller.
The same thing we do with the remaining 2 legs. Drill holes in them according to the first foot using it as a template. Here it is necessary to try not to allow difference in sizes, that the capture of the removed bearing occurs at once.
The subsequent part of the core. For a core on a small puller we will need metal round bar with a cross section of 30 mm and length of 35 mm (for the huge respectively 50 mm by 45 mm). In the workpiece drill a hole for the thread of 16 mm (for a huge puller in his workpiece hole under the cross section of 30 mm) and cut the thread. preferably in small increments.
In the prepared part for the core, let’s make a marking. three marks through 120 degrees. And to these places we weld by electric welding, on two on the marks. the holders of legs (the distance between the holders should be the width of the leg). I think to outline in detail how to prepare them, no need, because adhere to any serious rules and sizes is useless.
After welding work this part is also machined on a large emery machine.
Now having tried on the foot, we drill the holes in the holders. Drill away from the center, so that the installed foot has a good stroke to the side, to capture the bearings of larger size. And the 3rd part of our puller is.the screw.
On the 1st puller do length 350mm, the length of the thread 280mm, on the 2nd. length 500mm, for the thread 420mm. Next, on a lathe, we machine the workpieces and cut the threads. In the highest part of the screw, where there is no thread, we drill through holes with a small offset in height and perpendicular to each other.
These are the holes for a crowbar or a screwdriver. The cross section is up to the discretion of the user. The beginning of the propeller can be narrowed in cross section by a small distance.
I don’t describe the details. You can see everything in the photo. We made these pulley removers with a locksmith over 12 years ago.
All these years, I have no problems with the removal of bearings and half-couplings. And the main thing is the quality is from Russian times. Here is such a necessary tool, you can simply make their own hands.
When repairing electric motors, in addition to wrenches and a set of sockets, it is necessary to have in your arsenal and some pullers for tightening the bearings.Pulley removers.One universal one just can’t do. If you have electric motors from 1 kW to 100 kW, then you should have 2-3.I have in my arsenal two pullers for removing bearings.
There is a wide range of pullers on the markets now, and you can buy them. But if you have material, a lathe, gas and electric welding and desire, you can make a puller and their own hands. And I assure you, it will serve you well for decades.It is necessary to make a three-lap puller: they are the most convenient.
I will also note the size of my pullers, long time tested in repairs. Let’s start with the small one, with which you can remove bearings from 202 to 308 sizes, the big one 317 and larger. We need 10 mm sheet metal and homemade bearing pullers.
30 mm diameter round metal (for the big one, 15 mm round metal and 50 mm diameter round metal).First of all we make a drawing (pattern) of the extractor legs. The length of the legs do 200 mm (at the end of the article in PDF format I will lay out patterns of small and large pullers legs). Next, on the sheet metal on the pattern we draw.
We cut out the legs with a gas cutter (propane and oxygen). Workpieces after cutting should be machined on a coarse emery wheel.Gradually bring the sizes of three legs to the same size. There is no need to achieve too perfect dimensions, the difference of 1 mm will not make a negative role in the design.
Making a universal three-gripper with your own hands
To make a universal three-grip puller designed for working with bearings in sizes 202 to 308, you’ll need
If you plan to remove large bearings, use 15mm wide sheet metal and a 30mm round bar.
Calculate the length of the legs, which should be 200 mm. Sketch on the sheet metal according to the drawing and cut the legs with a propane and oxygen gas cutter.Grind the workpiece with a large emery wheel. The dimensions of all legs should be approximately the same, but absolutely perfect parameters are not required. a difference of about 1 mm is acceptable.
When this part of the job is done, you need to drill two holes in the top of each foot. they will be used to extend the tool. The diameter of the holes should match the diameter of the 8 or 10 bolts. If you plan to work with large bearings, you drill 3 holes for 12 or 14.Making the core.
It is made of metal round bar with the cross section of 30 mm and length of 35 mm (50 and 45 mm if it is necessary to work with massive bearings). Take the workpiece and drill a hole in it for the thread of 16 mm (30 if necessary in a larger product), cut the threads with a fine pitch. Mark the sides every 120 degrees, and then weld the leg holders to them.
The distance between them should be equal to the width of the foot. Now drill holes in the holders. They should be positioned a certain distance from the center so that the foot can grasp the large bearing.This is what the parts of the future puller should look likeThe final part of the job is to make the screw.
For the standard puller you need a 350 mm screw with a 280 mm thread, for the large puller you need a 500 mm screw with a 420 mm thread. Grind the workpieces on a lathe and cut the threads. The upper part is left without a thread. there it is necessary to drill through holes, located perpendicular to one another, having a small offset in height.
This version is easier to perform, but the product is not as handy. You will need the following tools and materials:
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steel pipe with inner diameter greater than the bearing diameter;metal plate more than 5 mm thick;angle grinder;threaded rod with nut or bolt with long thread;several nuts.
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Cut a piece of pipe with the required parameters.Cut off a piece of pipeDrilling out all the required parts on the metal sheet, trace the pipe and the bearing.Mark the future partsCut out the parts with an angle grinder and grind them to the exact measurements.Cut outsDrilled holes for the bolt in the washers we received.Drill holes for boltsThat’s it, the puller is ready!
Puller types
According to the type of drive, tools are divided into two groups: mechanical and hydraulic pullers. The latter has a built-in hydraulic cylinder, which develops a force of tens of tons. Pullers are designed for the most difficult and severe cases.
It is easier to make a bearing puller with your own hands mechanical, as it is arranged simpler, cheaper. In garages and car repair shops, this is the most common type of tool. It allows you to quickly change the gripping points, has a springing effect, which improves the operation of the pull.
Three-armed bearing puller and damper spring puller
Grading of mechanical devices is based on the number of grips (two- or three-handed) and the method of engagement (external or internal).
Widely used has a universal hub bearing puller, with their own hands, which is also often made. High-efficiency device solves many problems: removes gears, clutches, bushings.
In addition, there are rotary and self-centering designs, devices such as “pantograph” and others.
Double Gripper
The stability of the puller is determined by the number of grips. The STIHL twin-grip devices have a one-piece design with two claws. The main units are made by forging.
VAZ hub bearing puller with your own hands with two grips is made for a specific size of the extracted part, or for a universal device. Used to gently remove tight bearings in hard-to-reach places. Paws are better to make movable by means of swivel mechanism, brackets or crossbar.
Double-armed puller
Pressers differ in the following characteristics:
The tool can be articulated, with extended grips, with swivel, sliding, and crossed legs. There are also modifications with clamping locking grippers.
Three-grip
In terms of strength, this design is superior to 2-fingered puller devices, as it is made of forged reinforced steel. The presser gently removes the part from the pit with minimal physical effort on the part’s part.
Swivel joint pullers are very popular with professionals and amateurs alike. The tool easily adapts to the diameter of the auto part to be extracted (just spread the jaws apart), alignment is automatic.
The bearing is most often removed by grasping the outer ring. But it is also possible to use a special puller to grasp the inner ring and pull it out of the housing.
In this case, determine the size of the bearing bore and the type of grips. If there is a supporting surface, it is more convenient to take a 3-legged tool, on the end of which grips have bends on the outer and inner side.
Three-Handed Puller. Extractor
However, you can make an internal bearing puller with your own hands from two wrenches, four plates, a threaded rod, bolts and nuts.
Making a universal three-handle puller with your own hands
To make a universal three-gripping puller designed for work with bearings in sizes from 202 to 308, you will need
If you plan to remove large bearings, use sheet metal 15mm wide and a round bar 30mm across.
- The first step in making is to sketch. Calculate the length of the legs. it should be 200 mm. Sketch on the sheet metal according to the drawing and cut out the legs with a gas cutter that works with propane and oxygen.
- Grind the workpiece with a large emery wheel. The dimensions of all the legs should be about the same, but absolutely perfect parameters are not necessary. a difference of about 1 mm is acceptable. When this part of the job is done, you need to drill two holes in the top of each foot. they will be used to extend the tool. The diameter of the holes should match the diameter of the bolts by 8 or 10. If you plan to work with large bearings, drill 3 holes at 12 or 14.
- Make the core. It is made of metal round bar with a cross section of 30 mm and a length of 35 mm (50 and 45 mm if you want to work with massive bearings). Take the workpiece and drill a hole in it for a thread of 16 mm (30 if necessary in a larger product), cut the threads with a fine pitch. Mark the sides every 120 degrees and then weld the foot holders to them. The distance between them should be equal to the width of the foot. Now it is necessary to drill holes in the holders. They must be positioned at a certain distance from the center, so that the presser foot can grasp the large bearing.
This is what the parts of the future puller should look like
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The appearance of the finished product
Purpose and features of the fixture
If an embarrassing hum or noise appears in the area of the car wheels, it indicates that the hub bearing is broken. Repair or replacement of this unit should not be delayed. If you are not an expert in the field, as soon as possible go to the nearest service station, where the car will be examined and consulted.
However, it is not always possible to use the services of professionals, in some cases you have to act yourself. One of the most difficult repair operations is dismounting bearings. This requires special tools.
The most primitive hub bearing puller is an item consisting of such elements:
The tool is equipped with a sliding connection and the gripping distance can easily be changed. The tines can be used to remove and secure the following:
If the tool has three arms, it has more options, as the arms can be rotated and used to remove internal elements. It is called an internal bearing puller.
The most versatile tool is the combined presser, which has the properties of both the two-fingered and three-fingered tool. It is designed with special clamps, by means of which the damaged parts can be easily removed.
Mounting and dismounting bearings requires a manual tightening torque to seat or remove one or the other. The success of the work, as well as your own safety depends on how right you choose the tool.
Bearing puller with his own hands
Homemade bearing puller made by your own hands, a detailed description of manufacturing.
Very often in repair work, it is necessary to remove bearings, gears and other components. Of course for such tasks will need a puller, you can make it with your own hands. If you are interested in this homemade device, below are pictures of the step-by-step manufacturing of such a device.
You will need materials:
To make a puller you will need a metal circle, in the center of which you will need to drill a hole under the thread of the shaft.
Next, the author made a nut by welding two nuts together. The longer the length of the nut, the higher the loads will be able to withstand the thread. Finally, the nut is welded to the hole, exactly perpendicular to the base, so that the shaft does not go sideways.
To the circle weld the ears of sheet steel, to these brackets we will pivot to mount the legs. As for the legs, the author made them from round steel, and steel plates are welded to the legs as hooks. In the legs we drill holes for fixing screws.
Threaded shaft, you need to finalize on a lathe, to sharpen its end, so that the shaft was centered at the desired point during pressing out. On the reverse side of the shaft, remove the thread and make a groove, here will be attached to the handle of the valve. Also to mount the handle, turn the end of the shaft to the desired diameter and cut a thread for the nut.
Paint the parts and assemble the construction.
With such a homemade device, you can easily remove bearings and gears from the shaft.