Tips of changing the washing machine bearing

After the washing machine bearing is removed, first observe whether there are cracks, rust, scars on the rolling element, the inner ring and outer ring of the bearing. Then hold the inner ring of the bearing by hand and level the bearing, and rotate the outer ring of the bearing with the other hand. If the bearing is good, the outer ring should rotate smoothly and gradually decelerate to stop. There is no vibration or obvious stagnation during the rotation. After the rotation, the outer ring does not reverse. If the bearing is defective, noise and vibration will appear when it rotates. It will be abrupt like a brake when it stops, and it will reverse backwards seriously. Such bearings should be replaced.　　
The radial clearance of the washing machine bearing is 0.01 mm-0.02 mm. Push the inner ring in all directions. If the gap is felt when pushing, then the bearing wear is severe.
Before installing the washing machine bearing, it should be cleaned and checked for flexibility and smoothness, and greased. Then, ZYS washing machine bearing is placed on the journal, and a sleeve is used to hold the inner ring of the bearing. The upper end of the sleeve is iron-plated and hammered until the bearing is in place. When knocking, pay attention to the fact that the bearing can not be skewed, and the tap should be facing the axial direction.

Signs That You Need To Change Washing Machine Bearings

1. Noise

After long operation of washing machine, the bearings in the drum are eventually going to wear out. You can tell this immediately when you hear noise appearing from the drum during the operation. You can do a quick inspection of the drum. 

2. Oil stains on the clothes

If there are oil on the clothes after each washing cycle, it means that your main seal on the bearings is also worn and should be replaced. Despite this, you'd better change the bearings as well since they could collapse.

It's important to remember to put the right seal around each bearing as well. The wrong seal could end up leaking water on the new bearings, hence causing part failure once again.

Products features of Washing Machine Bearings:

· Bearing supported, shipped grease lubricated and protected against dust larger than .012" (.3mm) diameter.

· Available with additional lip seals (- 2RS) for enhanced sealing, as well as, with a keyway on the inner ring (-P) or the inner and outer ring (-PP) for additional ease of installation.

· Operating temperature: 21 to 140°F (-6 to 60°C)

· Special grease available for operating temperatures: -40 to 212°F (-40 to 100°C)

Contact Person: Mr.Dong

Address: No.1 Jilin Road, Luoyang City,Henan Province,China

Zip:471039

Tel: +86-379-6488 1209

Fax: +86-379-6488 1529

Mobile No:+86 139 3792 3793

Website: www.zys.com.cn

              www.zysbearing.com
E-mail: zysdong@gmail.com
Skype: zysdongoffice

QQ: 18937963793 

Can you install the deep groove ball bearing?

1. When installing the bearing, it should be evenly stressed and cannot be hammered directly. For example, if the interference is large, the bearing should be placed in an air-heating furnace or oil furnace with automatic temperature control, and the heating temperature should be strictly controlled below 120°.

2. The bearing with nylon cage can work continuously for a long time under the temperature -40°-120°. It should not exceed 4 hours at 150°, and the short-term temperature should not exceed 180°.

3. The warehouse where the bearings are stored should be clean, dry and not allowed to be stored in the same warehouse with the chemical products. The relative humidity should not exceed 65%, and the bearings are not allowed to be stored on the ground.

4. The stock bearings should be cleaned every year for rust-proof packaging.http://www.zysbearing.com/

The working principle of deep groove ball bearings

Deep groove ball bearings are suitable for high speed operation, low vibration and low noise, and they are extremely durable and require no maintenance. Deep groove ball bearings have the features of small friction coefficient, high limit speed, various sizes and forms, and they can be used in precision instruments, low noise motors, automobiles, motorcycles and general machinery. It is the most widely used type of bearing in the machinery industry. They mainly bear the radial load and can also withstand a certain amount of axial load. When it increases the radial clearance of the bearing, it has certain angular contact bearing performance and can withstand radial load and axial combined load.

The basic deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of cages. There are two types of deep groove ball bearings: single row and double row. The deep groove ball structure is divided into two types: sealed and open. The open type means that the bearing does not have a sealing structure. The sealed deep groove ball is divided into dustproof seal and oil proof seal. The dust seal cover material is stamped from steel plate, which is simple to prevent dust from entering the bearing raceway. The oil-proof type is a contact type oil seal, which can effectively prevent the grease inside the bearing from overflowing.

The type code of deep groove ball bearing is 6, and the double row deep groove ball bearing code is 4. It is the most common and widely used class 0 bearing. 

The Role and Use of Tapered Roller Bearings

Tapered roller bearings are to bear radial primarily diameter, the axial joint load. Rolling bearing capacity depends on the angle of the outer ring, the bearing capacity of the larger angle. This kind of bearing is separable bearings, roller bearings according to the number of columns is divided into single row, double row and four row circular cone roller bearings separately. Tapered roller bearing clearance adjustment to users in the installation; double row and four row tapered roller bearing clearance has been in the factory according to user requirements given, the user does not have to adjust.

    Tapered roller bearings have conical inner ring and outer ring raceway. Tapered rollers are arranged in between. Projection lines on all conical surfaces converge at the same point in the bearing axis. This design makes tapered roller bearings particularly suitable for bearing composite (radial and axial). Load. The axial load capacity of the bearing is mostly determined by the contact angle α; The greater the α angle, the higher the axial load capacity. The greater the e value, the greater the contact angle, the greater the applicability of bearing to axial load.

    Tapered roller bearings are usually of separate type, i.e. conical inner ring assemblies consisting of inner rings with roller and cage assemblies can be mounted separately from conical outer rings (outer rings).

Tapered roller bearings are widely used in automobile, rolling mill, mining, metallurgy, plastic machinery and other industries.

    The main reason is that the emergence of tapered roller bearing device in the process are: bearing device, when assembling the emergence of the inner ring, the outer ring of skew; or perhaps the emergence of load device and assembling charge into the enemy ranks are in the process of the final formation. That is the emergence of the bearing device conical roller bearing should be in accordance with the job specification to stop, not many results, such as to form or not when the device, will emerge the scar formation of linear bearing raceway surface and rolling bearing surface. Device of deep groove ball bearing with bearing using the indirect reaction when precision, life and function.

    Although the quality of tapered roller bearings is good, the rolling bearings are precision parts, and their use should be carefully carried out accordingly. No matter how high performance bearings are used, if they are not used properly. The expected high performance will not be obtained. The following considerations are noted for the use of bearings:
(1)、Keep the tapered roller bearings and their surroundings clean. Even small dust that is invisible to the eyes can have a bad effect on the bearings. So keep the surroundings clean so that the dust does not intrude into the bearings.

(2)、 Give taper roller bearing a strong impact in use, will produce scars and indentation, become the cause of the accident. In serious cases, will crack, fracture, so we must pay attention to.

(3)、Use the right operating tools. Avoid using existing tools. Use the right tools.

(4)、Attention should be paid to the corrosion of tapered roller bearings.

     When operating the bearing, the sweat on the hand can be the cause of rust. Use clean hands and wear gloves as far as possible. Tapered roller bearings use hearing to identify irregular movement is a very common method. For example, using an electronic stethoscope to detect a zero piece of abnormal noise is used by an experienced operator. Bearings in good working condition emit a low whine. A sharp hissing tapered roller bearing, squeak and other irregular sounds usually indicate that the bearing is in bad working condition.

1, tile surface corrosion: spectra of non-ferrous metal element concentration anomaly; there are many nonferrous metal components of sub micron particle wear ferrography; oil water exceed the standard, exceed the standard value.

2, the journal surface strain spectrum: iron iron line cutting abrasive or black metal oxide particles, temper the surface. 

3, shaft neck surface corrosion: spectral analysis of iron concentrations found abnormal, submicron particles have many iron components of iron in the spectrum of lubricating oil or water exceed the standard.

4 value exceed the standard, the surface strain: iron spectrum is found in cutting abrasive, abrasive composition for nonferrous metals. 

5, tile back fretting wear the spectral analysis showed that iron The concentration is abnormal, and there are many submicron wear particles of iron in the iron spectrum, and the water and acid value of the lubricating oil are abnormal. Under the condition of liquid lubrication , the sliding surface is separated from the lubricating oil without direct contact , the friction loss and the surface abrasion can be greatly reduced , and the oil film also has certain vibration absorption capacity

     A sharp creak noise may be due to inadequate lubrication caused. The bearing clearance can also cause inappropriate metallic sound. Dent taper roller bearings on the track will cause vibration, resulting in smooth crisp sound, if the installation of the percussion scars will produce noise, the noise will follow bearing speed vary. If intermittent noise, said rolling element may be damaged, tapered roller bearings, this sound is when the damage occurred in the surface is rolled out, bearing if hissing sound pollution often caused serious damage to the bearing will produce irregular and loud noise.

   Bearing damage can be detected by hearing, but usually the bearing must be replaced immediately by this time. Therefore, better methods such as using electronic condition monitoring instruments. The operation of tapered roller bearings is broken in advance.

http://www.zys-bearings.com/bearing/automotive-bearing/single-row-tapered-roller-bearings.html

Dust into the wind turbine bearing,increasing noise

In recent years, the major bearing manufacturers in terms of the radiator's new technology, Wind turbine bearing , such as magnetic bearings, water bearing, bearing core, to Fu bearings are also on top of the basic forms of bearings made to improve the operation of the principle did not change .

Ordinary air-cooled radiator oil bearings and ball bearings are mainly used.And this bearings over time, due to the oil seal (computer radiator products are impossible to use high-grade seals, generally is ordinary paper seals), insert ball bearing ,oil will gradually evaporate and dust will enter the bearing, causing the fan slow speed, noise increases and other issues, but also because of a serious bearing wear caused by severe vibration caused by eccentric fan. These phenomena, Deep groove ball bearing either open seal refueling, or to purchase another new fan only eliminated.

Ball bearing profiles and composition structure

Ball bearing profiles and composition structure
There are single row radial Deep groove ball bearing, double row spherical, radial thrust, thrust and thrust to the heart and other structural types. ① single row radial ball bearings: compact, easy to use, and wide application. Mainly used to bear radial load, it can withstand a certain amount of axial load. In the high-speed device, it can also be used to replace the thrust bearing. This Order of the friction is small, extreme high speed, suitable for rigid large double bearing axis.
Structure and composition
Ball bearings are mainly made up of four basic elements: ball, inner ring, outer ring and the cage or retainer. Ball and ring usually high chromium steel, Rockwell hardness of between about 61-65. While maintaining the low hardness compared to the balls and the ring, which material has a metal or metalloid. ball bearing rotation than the ball bearing friction is small, and therefore at the same speed, temperature and friction will be relatively low.