How To Put The Grinding Disc On An Angle Grinder
The features of its use are:
- May only be used with a grinder equipped with a second auxiliary handle. For safety reasons, the angle grinder should only be held with two hands.
- It is allowed to remove the protective casing, since the body of the nozzle is one-piece, and the probability of its destruction is very small. However, protection from flying chips is required: gloves, glasses, clothing.
The main question: How to choose the right disc for your angle grinder?
When choosing accessories for an angle grinder, first of all, you should decide on the type of proposed work. The choice of the type of disc will depend on this. We also want to mention that when choosing a consumable, be sure to take into account the power characteristics of each specific model. Examine the labeling. Often, it is printed on the disc itself and includes a set of symbols by which you can determine the relevance of this consumable to perform the intended work.
Also, focus your attention on such a parameter as the diameter of the disc. In no case should it exceed the size of the protective cover on the particular tool model. The size range of discs is usually represented by the following diameters: 115, 125, 150, 180 and 230 mm. The most common diameters are 125 mm. and 230 mm. They are optimal for most types of work and the capabilities of the tool itself.
Among the bakelite-based grinding discs, the most popular discs with a thickness of 6.00 mm. This parameter depends on the total diameter of the disc. The relationship is as follows: the larger the diameter of the disc, the greater its thickness and vice versa.
To install a new disk, after cleaning the casing, you must perform the following actions:
- Install the bottom flange in place;
- We put a special gasket on top of it (if gaskets are not provided, you can cut them yourself. The optimal material will be cardboard or tin).
- Install the disk;
- We put the second gasket;
- Install the top flange on top;
- We wrap the upper flange by hand in the opposite direction from the rotation of the angle grinder wheel, while holding the disk itself;
- Next, press the release button again and scroll the flange with your hand until you feel resistance;
- At the final stage, we make the final fixation using the same open-end wrench. To do this, insert the key into the holes and scroll a little more.
Remember that you need to tighten no more than a quarter of a turn, since if the flange is too fixed, the disc will become unusable.
After all the actions taken, you can safely continue to perform work.
One of the most frequently asked questions about mounting / dismounting accessories of an angle grinder is: “Which side should I put the disc on the angle grinder?”.
Usually, inexperienced masters ask such a question. Is it possible to set the circle on the wrong side. yes. Firstly, if the disc is not flat, but, for example, a petal disc, then you will not be able to install it incorrectly, if the petals are located incorrectly, you just need to twist the casing and the handle onto the angle grinder. That is, the question disappears by itself.
If the circle is still flat, then you should be guided by its label, the so-called “shirt”.
If the angle grinder rotates towards itself, the disc should be installed with the “jacket” outward, if the disc rotates away from itself, then, accordingly, it must be installed with the “jacket” inward.
If you do not adhere to this algorithm, there is a high probability that the disk will fail very quickly or immediately deform.
remove disc from angle grinder
This method involves the use of the famous VD-40 grease.
It is probably like electrical tape, applicable in all cases of life.
You need to spray the flange, wait about 5 minutes and try to unscrew it with a wrench.
How to change a disk if it is jammed?
What to do if the wheel on the “angle grinder” is stuck? This can happen, for example, when, as a result of work, pieces of the workpiece being cut sharply clamp the rotating disc. Often this leads to its destruction.
It can be very difficult to unscrew the nut tightened as a result of rotation, if the circle is bitten.
- One of these methods would be to use two gas keys at once. In this case, the remains of the disc must be broken with pliers. With one key, you need to clamp the part of the stem located under the disc, and with the other, unscrew the flange.
- Sometimes, in order to gain access of the gas wrench to the “angle grinder” rod, you have to disassemble the gearbox.
- A simple device saves from the problem of a jammed nut. cardboard or tin washers. They are often sold with an “angle grinder”. But over time, they can be lost or become completely unusable. Making homemade washers is not at all difficult. However, it is best not to neglect them.
In extreme cases, the flange can be sawn with a hacksaw for metal and then replaced with a new one.
Rough processing attachments
This category includes two types of attachments.
Milling attachments
There are two types of such attachments: discs and cutters.
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Correspondence table of rim width with tire width
195/65 R15 91 T
How To Use An Angle Grinder. Ace Hardware
The designation suggests the width of the tire, measured in millimeters (mm).
Percentage of the profile height to the rubber width. Considering the same width, you will notice that the greater the proportionality, the taller the tire and vice versa. As a rule, this indicator is meant when they talk about a profile.
R. means that the tire has a radial cord.
wheel / disc diameter. The value is indicated in inches.
T. designation of the speed index. On it you can navigate what permissible speed can be developed on a given tire.
designation of the load index. This value tells you what is the maximum permissible wheel load.
For each disc you need to find a personal version of the rubber that fits it. Making the wrong choice can pay dearly for this folly. It is difficult to miscalculate with the diameter, because setting the wrong size is problematic. But with the width, there is a chance to be mistaken. If we take too narrow or wide discs, then the design profile of the tire will invariably suffer and its characteristics will deteriorate: quick response on turns and during maneuvers, the stiffness of the sidewall will decrease, and the drag resistance will worsen.
The axiom when selecting a disc says: the width of the disc rim must be 25% less than the width of the rubber profile. For the presented size 195/65 R15 91 T, the disc width can be calculated as follows: first, calculate the profile width in inches. 195 divided by the number 25.4 (it means the number in 1 inch mm.) It turns out 7.68 inches. Subtract 25% from this value, and then round off the result. The formula looks like this: 195 / 25.4-25% = 5.76. Rounding up, and it turns out that for a given standard size, a 6-inch wide disc is needed.
It is permissible to take discs with a deviation in the rim width of no more than 1 “if it is a disc with a diameter of up to 14″. For discs 15 ” and above, the maximum deflection is 1.5 ”.
How to Place a Disc on an Angle Grinder Correctly?
In order to correctly place the disc on the angle grinder, it should first be noted that the disc is mounted on the spindle of the angle grinder using a special clamping flange with M14 thread. Let’s take a closer look at how to remove a disc from an angle grinder. In order to unscrew the disc from the angle grinder, you first need to dismantle the flange. Especially for such purposes, manufacturers complete the angle grinder with a special open-end wrench. It has a specific shape. The pins located on the horns of this key are inserted into specially provided holes on the flange.
To unscrew the flange, we fix the spindle. To do this, we clamp the latch, which is usually a button on the top of the case. When pressed, the cotter pin is placed in the hole of the driven disc of the gearbox, and this in turn prevents its rotation. Next, we insert the pins of the key into the specially provided holes on the flange, pressing the lock, you must simultaneously turn it counterclockwise and move the flange from its place. If the manipulations were successful and the flange succumbed, you can unscrew it by hand and put it aside.
Now let’s dismantle the disk. Often, in the process of intensive work with the tool, a certain deposit of small particles of metal and abrasive material forms on the inside of the protective casing. For optimal, stable and durable operation of the angle grinder, remove the bottom of the flange and clean the casing with a steel brush.
To install a new disk, after cleaning the casing, you must perform the following actions:
Remember that you need to tighten no more than a quarter of a turn, since if the flange is too fixed, the disc will become unusable.
After all the actions taken, you can safely continue to perform work.
One of the most frequently asked questions about mounting / dismounting accessories of an angle grinder is: “Which side should I put the disc on the angle grinder?”.
Usually, inexperienced masters ask such a question. Is it possible to set the circle on the wrong side. yes. Firstly, if the disc is not flat, but, for example, a petal disc, then you will not be able to install it incorrectly, if the petals are located incorrectly, you just need to twist the casing and the handle onto the angle grinder. That is, the question disappears by itself.
If the circle is still flat, then you should be guided by its label, the so-called “shirt”.
If the angle grinder rotates towards itself, the disc should be installed with the “jacket” outward, if the disc rotates away from itself, then, accordingly, it must be installed with the “jacket” inward.
If you do not adhere to this algorithm, there is a high probability that the disk will fail very quickly or immediately deform.
How to Place a Disc on an Angle Grinder Correctly?
The disc “angle grinder” (angle grinder) is one of its main working parts. It is the disc that determines the use of the instrument. With it, this machine can be used to cut, grind or polish various materials. Discs, depending on the purpose, differ from each other: from abrasive grit. for metal, steel milling cutters and circular saws. for woodworking, with diamond dusting. for stone and tiles, all kinds of brushes, brushes and emery wheels. for polishing various surfaces.
The disc “angle grinder” is a consumable material; you cannot save on it in the process of work. The disc will gradually wear out (burn out) and must be replaced. When planning work, you need to be prepared for this and it is better to stock up on several removable disks in advance.
How to remove, change a jammed disc from an angle grinder?
How to remove a disc from an angle grinder. an angle grinder (hereinafter referred to as an angle grinder), popularly referred to as an angle grinder, is probably the most demanded inventory that is present in the arsenal of almost every master, regardless of his qualifications.
This tool is actively used in abrasive processing: cutting, grinding, cleaning workpieces from stone, metal and many others. It is widely used in areas such as construction, woodworking and other similar types of work. Like any other tool, the angle grinder is also divided into several classes.
This refers to the following: household, semi-professional and pro-class instrument. This classification is determined by the power resource of the tool, its performance, the presence of certain additional options, material and build quality, etc.
Consumables for an angle grinder, in addition to various types of cleaning brushes, are cut-off wheels and a variety of grinding discs. Types of Angle Grinder Accessories: How to Make the Right Choice?
To install a new disk, after cleaning the casing, you must perform the following actions:
- Install the bottom flange in place;
- We put a special gasket on top of it (if gaskets are not provided, you can cut them yourself. The optimal material will be cardboard or tin).
- Install the disk;
- We put the second gasket;
- Install the top flange on top;
- We wrap the upper flange by hand in the opposite direction from the rotation of the angle grinder wheel, while holding the disk itself;
- Next, press the release button again and scroll the flange with your hand until you feel resistance;
- At the final stage, we make the final fixation using the same open-end wrench. To do this, insert the key into the holes and scroll a little more.
Remember that you need to tighten no more than a quarter of a turn, since if the flange is too fixed, the disc will become unusable.
After all the actions taken, you can safely continue to perform work.
One of the most frequently asked questions about mounting / dismounting accessories of an angle grinder is: “Which side should I put the disc on the angle grinder?”.
Usually, inexperienced masters ask such a question. Is it possible to set the circle on the wrong side. yes. Firstly, if the disc is not flat, but, for example, a petal disc, then you will not be able to install it incorrectly, if the petals are located incorrectly, you just need to twist the casing and the handle onto the angle grinder. That is, the question disappears by itself.
If the circle is still flat, then you should be guided by its label, the so-called “shirt”.
If the angle grinder rotates towards itself, the disc should be installed with the “jacket” outward, if the disc rotates away from itself, then, accordingly, it must be installed with the “jacket” inward.
If you do not adhere to this algorithm, there is a high probability that the disk will fail very quickly or immediately deform.
Discs for an angle grinder differ among themselves in the following main characteristics:
- Outside diameter;
- Disc thickness;
- The material from which the disc itself is made;
- The characteristic of the maximum rotation speed;
- And, of course, the area of the proposed work.
For the best understanding, let’s take a look at the main types of angle grinder discs and define their application:
- Cut-off wheels. It is the most widely used consumable for angle grinder. Their main purpose is to work with metal, stone and wood. A variety of cutting wheels for an angle grinder are diamond discs. It is a heavy-duty tooling for processing high-strength materials such as reinforced concrete, tiles, porcelain stoneware, marble.
- Grinding and roughing discs. As the name implies, this type of disc is used for grinding various materials, for example, polishing products made of stone, or for removing (peeling) the top layer, for example, removing a layer of rust or old paint coating.
Cut-off wheels for an angle grinder, in turn, have their own subspecies, such as:
- Cutting wheels for metal work;
- Abrasive wheels for working with stone;
- Wheels for woodwork;
- Diamond discs (mentioned above).
The purpose of each type of disc usually corresponds to its name.
Among the grinding discs, there are four main subtypes. flap, wire, diamond and bakelite-based grinding discs (straight, T41 profile and disc-shaped, T27 profile).
Angle Grinder Safety Chapter 2: Mounting Wheels
- The flap disc is made from sandpaper. Its main purpose is to remove existing coatings such as old paint, primer or paint coat. Also, with disks of this type, wood products are polished.
- Wire discs are used by artisans to remove rust. They can also remove other types of stubborn dirt.
- Diamond discs are used for polishing stone.
- Disc discs are made of plastic or rubber and are used to polish metal surfaces.
Please note: in the process of working with most discs, a special paste or grease is used, which contains abrasives of the finest grinding. They are mainly used for sanding surfaces such as, for example, car body parts.
Why do you need a metal ring
A washer or simply a metal ring is necessary to protect the abrasive from excessive tightening, since many users tend to tighten the stopper tighter, fearing that the circle will fly off while working with the tool.
Also, the ring is mounted on an angle grinder disc to significantly increase the bearing surface area. In addition, the washer is designed so that the abrasive does not “stick” to the nut, which simplifies the removal process.
Ring on disk
Ease of installation
Another advantage of face-out disc installation is that the user can always see which attachment is installed on the angle grinder. To work with stone or metal, you need to use different discs, and if you make a mistake, you can get serious injuries due to a rupture of the cutting part.
For example, if you use a metal disc for cutting concrete, then the abrasive simply will not withstand the load and will fly apart in pieces in different directions. Therefore, the considered installation option provides not only convenience, but also safety.
Advantages of ring mounting disc to angle grinder
There is no exact direction to follow when setting the wheel to the sander. But, as already described above, if you put the cutter “face” out, then the removal process will be simplified, since it is more difficult to catch on the surface from the abrasive side.
Apart from this, there are a few other benefits that will be useful to know.
Guaranteed even installation on the shaft
A metal ring mounted on the disc increases the bearing area, so the tightening pressure becomes even. Thus, the disc will sit as smoothly as possible on the desired surface. The possibility of skewing will be excluded. This directly affects not only the evenness of the cut, but also the safety of the user. the abrasive will not scatter into pieces if it does not cling to the angle grinder.
Which side to put the disc on the angle grinder
In most cases, the abrasive for an angle grinder is installed in only one direction, but in a situation when working with stone or concrete, the process changes. Therefore, you need to consider these cases separately.
Place the disc differently depending on the situation.
The main difference between the two sides of a circle
On any angle grinder disc, you can easily notice differences in the two sides of the wheel. One side is plain, it is covered with abrasive materials (for working with different types of metals). The front side has a special label on which they write information about the characteristics of the cutter.
But the main difference between the two sides of the circle is the presence of a metal ring. This is an important design element that affects the safety of use, and therefore deserves a separate mention.
Which side to install the disc on the angle grinder
Placing a disc on an angle grinder is easy if you follow fairly simple instructions. This information is extremely important for craftsmen, as it is the disc that determines the functionality of the instrument. With the disc, you can use the angle grinder (angle grinder) to grind, cut or polish various kinds of materials. How to properly place a disc on an angle grinder, further in the article.
For other materials
When working on concrete or wood, the angle grinder should rotate the disc towards the person holding the angle grinder. In this case, the label must be directed outward. These are isolated cases, and in most other cases, the grinder works away from the manager.