A: The exact calculation of life expectancy of a ball bearing and bearing system take a lot of effort, and is influenced by a number of factors, including:Size of frameBearing playLubrication (oil or grease)Temperatures on the componentsProduction tolerances and connection dimensions of the external componentsRPMThe probable life of a bearing can be determined using the material fatigue under defi...

A: Sleeve bearings (sometimes called bushings, journal bearings or plain bearings) facilitate linear movement between two parts. Sleeve bearings consist of a metal, plastic or fiber-reinforced composite sleeves that reduce vibrations and noise by absorbing friction between two moving parts using a sliding motion. SUNBEARING CAN CUSTOMIZE SLEEVE BEARING. Click here to view more products.

A: Thrust washers, also referred to as thrust bearings or thrust plates, are flat, disk-shaped bearings that are made of either metal-polymer or fiber reinforced composite material.Click here to view SUNBEARING products.

A: Spherical bearings are also referred to as spherical plain bearings, spherical ball bearings or ball bushings. Spherical bearings can roughly be divided into four bearing types: spherical ball bearings, spherical roller bearings, spherical rod ends, and spherical plain bearings. Spherical bearings are specially designed to accommodate high misalignment and high load bearing applications such as...

A: Not necessarily. While some evidence might suggest the correlation, it has not been proven. This is because, as mentioned above, the scale doesn’t take into account important factors such as material quality, smoothness of the rolling surface and ball precision. Lubricant plays a big part in how quiet a bearing system will be, so it’s very difficult to determine which is the greater influence.C...

A: Flange bearings consist of a cylindrical body with a flange at one end. These bearings are capable of supporting radial loads as well as light axial loads due to the flange providing a thrust surface.Click here to view more about SUNBEARING bearings.

A: Radial and axial piston pumps are used primarily in construction, agriculture, automotive, material handling and industrial equipment. Both use shaft journal bearings to support their loads and speeds.Click here to view products of SUNBEARING.

A: Bushing is one classification of the overall category of bearings.A bushing is a thin tube or sleeve that allows relative motion by sliding (our type), as compared to rolling. A bushing might also be called a sleeve bearing. However, the term sleeve bushing would be redundant. Thus, a bushing is a bearing, but a bearing is not necessarily a bushing type.Click here to view SUNBEARING bearings.

A: SE6000ZZSTMSA7C3 YS is a solid lubricated deep groove ball bearing from koyo. Its dimensions and structure are the same as those of 6000ZZ, but the material and performance of the product are completely different. See below. The product is suitable for use in vacuum and high temperature environments. Can withstand high temperatures of 300 degrees Celsius. The ordinary product 6000ZZ is irreplac...

A： Clearance refers to the internal clearance of a bearing between its raceways and rolling elements. A C3 or greater bearing, where the clearance is greater than standard are typically used is higher speed applications where there may be material expansion due to heat produced through friction. It is not recommended using a C3 bearing on an application where it is not specifically required. We al...

A: All Orange Seal bearings with an LD (lube dry) in the part number are supplied dry, without grease or oil. AF2 in the part number means light oil and NB2 in the part number means a heavy duty grease. If your bearings are already dry they will not require any further handling. They can be run completely dry or you can add a light drop of oil to the outside seal and work the oil into the bearing....

A：Z3 can be a requirement for deep groove ball bearings, self-aligning ball bearings, tapered roller bearings, and steel ball vibration acceleration peaks. See the table below for details. In the standard, the peak values of product vibration acceleration of certain series of different series are specified, which are divided into Z, Z1, Z2, Z3 and Z4 groups. The Z group is the basic requirement fo...

A: Unfortunately, it is not an exact science. Most bearings are packed in thick, viscous grease or with a light weight oil. As a result the bearing generally will not free spin to the touch. Over time as the lube thins out, and warms up during each use, the bearing will become much freer. So all you need to do is to use the bearing normally and it will break in naturally. The more you use the bear...

A:Maintenance depends on the type of enclosures and lubricants your bearings have. Rubber sealed or Ultra sealed bearings require no maintenance and the lube is good for the life of the bearing. Metal shielded bearings that use either grease or oil should be constantly maintained and frequency level with vary depending on your application. Oil dissipates faster than grease, so typically shielded b...

A: 1) Soak your bearings in mineral spirits or paint thinner to remove any grease or particulates. 2) Blow bearing out with compressed air. 3) Place a light drop of oil on the bearing. 4) Give the bearing a spin, if they still feel rough repeat steps 1-3.If you have any questions please feel free to contact us. Click here to view us. SUNBEARING Always welcomes you.

A: Radial Play refers to the fit or clearance of the balls in the bearing. The normal range is from C2 to C5. C2 would be the tightest fit and would not have much room allowed for expansion of the balls or misalignment. C5 would be the loosest, where the balls are undersized to allow for some expansion as the bearing heats up or misalignment of the application.If you have any demands you can conta...

A:There is no true water proof seal for bearings. Bearing seals are primarily designed to retain the lubrication inside the bearing. Most bearing seals are considered water repellant and will keep moisture out of the internal components, but they will not prevent water from entering the bearing if it is submerged. If you require a bearing that can operate submerged in a liquid, SUNBEARING would su...

A：Bearing lubrication is an essential element of bearing selection, as it:· Extends fatigue life of the bearing by reducing wear and friction between the mating components of the bearing assembly.· Prevents corrosion and extends shelf life.· Provides a level of protection from foreign material entering the rolling elements.· Reduces the noise level of the bearing, lowers torque, and assists the be...

A: Silicon nitride is the typical ball material in a ceramic-hybrid bearing. The primary use for hybrid bearings are to extend bearing life by reducing wear. Ceramic balls in a bearing with stainless steel races have been proven to reduce lubricant breakdown and bearing wear. Advantages of a ceramic-hybrid bearing include:Smoother running bearing, less vibration and noiseReduced centrifugal loads ...

A： The retainer (also called a cage or separator), is used to separate the balls and equally position them around the bearing raceway. Some retainer materials contain lubricant for extended bearing life. Retainers for ball bearings are generally available in two designs. The most universal is a 2-piece closed ball pocket design called a ribbon retainer. A single piece open ball pocket design is ca...

A：Shields or seals are often installed to retain lubrication and to prevent contamination from entering the bearing. While a shield contacts the outer ring and does not come in contact with the inner ring, the seal generally comes in contact with both the inner and outer rings. Torque or drag is lower with a shield than with a seal. Alternately, the seal provides a higher degree of protection from...

Bearings with outside diameters less than 62mm normally have some form of lithium soap grease with NGLI2 consistancy (MT47) and a temperature range of -30 to +110 deg C. Bearings with an outside diameter 62mm have alithium based grease with NGLI3 consistancy (MT33) and a temperature range of about -30 to +120 deg C.If you have any questions please feel free to contact our SUNBEARING. Click here t...

End play is application specific, or preset in the case of NA type tapered assemblies. The machine manufacturer's recommendations should be followed. SUNBEARING specializes in bearing manufacturing for about 19 years. If you need new designs please contact SUNBEARING engineering.

A: SUNBEARING told you there are many things to consider when choosing a bearing for a particular application:· Type of load, such as radial, axial, or a combination of radial and axial and the size of these loads· Running speed· Required operational accuracy· Available space· dislocation· Noise level· Installation and disassemblyTo learn more about bearings please contact us, SUNBEARING will give...

A: According to SUNBEARING technical staff axial or thrust bearings are designed to withstand forces in the same direction as the shaft. This is called an axial load or a thrust load . In some applications, ceramic bearings (a radial bearing ) are used to withstand high rotational speeds. The rolling element is ceramic, which is lighter than steel. This reduces the centrifugal force of the cerami...

One must, before selecting bearings, know or define the requirements profile of the application. Space, bearing arrangement, speed, loads, required stiffness, lubrication, etc. are parameters which must be considered. You can make your choices based on bearing data.You can find more on SUNBEARING or click here to learn more about us You can also contact SUN BEARING technical applications consulta...

A：The quick answeris two to three years. This is recommended almost universally accross allmanufacturers. Technically, depending on packaging and storage conditions thiscan be extended. Consult SUNBEARING ifyou have any doubts.Click here to know about our products

A: Plain cylindrical bearings are made to handle heavier loads and higher speeds than ball bearings and cylindrical roller bearings, both of which are bearings with rolling elements.This is because plain cylindrical bearings have more contact surface area than rolling element bearings, so loads are more evenly distributed across the surface. Cylindrical bearing applications may include application...

A: Shields or seals are often installed to retain lubrication and to prevent contamination from entering the bearing. While a shield contacts the outer ring and does not come in contact with the inner ring, the seal generally comes in contact with both the inner and outer rings. Torque or drag is lower with a shield than with a seal. Alternately, the seal provides a higher degree of protection fro...

A: The retainer (also called a cage or separator), is used to separate the balls and equally position them around the bearing raceway. Some retainer materials contain lubricant for extended bearing life. Retainers for ball bearings are generally available in two designs. The most universal is a 2-piece closed ball pocket design called a ribbon retainer. A single piece open ball pocket design is ca...

A:Those refer to the inner diameter of the bearing and thesize of the axle its going on. Based on our SUNBEARING years of experience insupplying bearings most of the new skates use 8mm axles so the standard 8mm bearings would be needed.The older models, and high end skates use 7mm axles sothey would need the 7mm bearings.If you have any questions, please feel free to contact us!

A: This is an acronym for Annular Bearing Engineers' Committee.This committee determines the ratings for each bearing.The ABEC rating system includes grades 1,3,5,7, and 9. The number determines how much "roll"the bearings has. The higher the number, the longer it will take your wheel to stop spinning after you stop pushing. Also, SUNBEARING can provide various grades of bearings. If you have any ...

A: SUNBEARING bearings help the wheels move freely on the skate. Generally, the higher "rated" the bearing the better the bearing. However, most non-professional or non-competitive skaters will not need anything above standard skate wheel bearings.Welcome any question，please feel free to contact us！

A: Seals and shieldsare both in place to keep contaminants out of a bearing. In order ofeffectiveness, the enclosures that are offered are as follows: metal shields,rubber non-contact seals, Teflon non-contact seals, and rubber contact seals.Not surprisingly, as the sealing performance is increased, the torque requiredto turn the bearing will also increase due to the increased friction caused byth...

A: Competitor bearings can be assembled using these data and values,even if different inner ring cross sections (e.g. no fixed ribs) lead toslight, negligible deviations from the results during comparative calculations.SYW since 1999has been focusing bearing trading for nineteen years.sunbearinggSelf-aligning Ball BearingSpherical Roller BearingThrust Aligning Roller BearingTapered Roller BearingT...

A: In these cases, the sufficiently high starting pressure is given as a percentage value of the final expansion, in order that values which are feasible with assembly technology can be achieved with small bearings in particular. In the case of larger bearing diameters, individually specified starting pressures can prevent adjustment between the start and end position of the hydraulic nut, particu...

A: Only if the bearing is mounted mechanically (i.e. without high pressure oil in the fitting joint between bearing and shaft), the hydraulic nut may be removed immediately afterwards. If the hydraulic method is used, it takes ca. 10 to 30 minutes after relieving the oil pressure until the oil has drained completely from the fitting joint. During this period, the axial preload must continue to ac...

A: The oil pressure in the fitting joint between bearing and shaft maybe applied only after the starting position has been reached.Click here to view more about our products SYW since 1999has been focusing bearing trading for nineteen years.sunbearingDiscount and Promotion all bearingSelf-aligning Ball BearingSpherical Roller BearingThrust Aligning Roller BearingTapered Roller BearingThrust Ball B...

A: The hydraulic method makes the mounting and dismounting of bearings with bores from ca. 160 mm much easier.Click here to view more about our products SYW since 1999has been focusing bearing trading for nineteen years.sunbearingDiscount and Promotion all bearingSelf-aligning Ball BearingSpherical Roller BearingThrust Aligning Roller BearingTapered Roller BearingThrust Ball BearingDeep Groove Bal...

A: A tolerance of +/- 5% appliesto the drive-up distance.Click here to view more about bearings SYW since 1999has been focusing bearing trading for nineteen years.sunbearingDiscount and Promotion all bearingSelf-aligning Ball BearingSpherical Roller BearingThrust Aligning Roller BearingTapered Roller BearingThrust Ball BearingDeep Groove Ball BearingAngular Contact Ball BearingThrust Roller Beari...