Your Trusted Linear Ball Bearing Manufacturer

LLG Linear Ball Bearing, a trustworthy bearing supplier in the world. We, from LLG Linear Ball Bearing, focus on producing bearings for more than ten years now. Also, we have a skillful and professional LLG Linear Ball Bearing team.

  • LLG Linear Ball Bearing has quality control in strict as stated by ISO standard.
  • With LLG Linear Ball Bearing we offer high-precision and rigidity bearings.
  • Our LLG Linear Ball Bearing is easy to assemble and replace.
  • Lastly, we offer a competitive price LLG Linear Ball Bearings.
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    The LLG Linear Ball Bearing

    The LLG Linear Ball Bearing’s missions are 100% quality control and 100% customer satisfaction. Here in LLG Linear Ball Bearing, we are responsible to assist our customers to be competitive and advantaged in the global market.

    The LLG Linear Ball Bearings are pre-tested, process controlled, final product re-inspected with considerate after-sales services. Not just that, LLG Linear Ball Bearing is strict and offers a complete process to ensure the quality of our product. We met our customers’ requirements here in LLG Linear Ball Bearing.

    LLG Linear Ball Bearing Series

    LBBR Linear Ball Bearing

    Diameter: 3-50 mm
    Outside diameter: 50-80 mm
    Width: 2-5 mm
    Featuring: LB-BR Linear Ball Bearing used in most critical industrial applications.

    LBCR Linear Ball Bearing

    Diameter: 5-80 mm
    Outside diameter: 122-120 mm
    Width: 22-165 mm
    Featuring: LB-CR Linear Ball Bearing used in most critical industrial applications.

    LBCD Linear Ball Bearing

    Diameter: 12-50 mm
    Outside diameter: 22-75 mm
    Width: 32-100 mm
    Featuring: LB-CD Linear Ball Bearing used in most critical industrial applications.

    LBCT Linear Ball Bearing

    Diameter: 12-80 mm
    Outside diameter: 22-120 mm
    Width: 32-165 mm
    Featuring: LB-CT Linear Ball Bearing used in most critical industrial applications.

    LBCF Linear Ball Bearing

    Diameter: 12-50 mm
    Outside diameter: 22-75 mm
    Width: 32-100 mm
    Featuring: LB-CF Linear Ball Bearing used in most critical industrial applications.

    LBHT Linear Ball Bearing

    Diameter: 20-50 mm
    Outside diameter: 32-75 mm
    Width: 45-100 mm
    Featuring: LB-HT Linear Ball Bearing used in most critical industrial applications.

    LPBR Linear Ball Bearing

    Diameter: 12-50 mm
    Outside diameter: 19-62 mm
    Width: 12-120 mm
    Featuring: LP-BR Linear Ball Bearing mainly used when high dimensional and geometrical accuracy is required.

    LPAR Linear Ball Bearing

    Diameter: 5-80 mm
    Outside diameter: 12-120 mm
    Width: 22-165 mm
    Featuring: LP-AR Linear Ball Bearing mainly used when high dimensional and geometrical accuracy is required.

    LPAT Linear Ball Bearing (1)

    Diameter: 12-50 mm
    Outside diameter: 12-120 mm
    Width: 22-165 mm
    Featuring: LP-AT Linear Ball Bearing mainly used when high dimensional and geometrical accuracy is required.

    Why LLG Linear Ball Bearing

    LLG Linear Ball Bearing intended to give free movement one way. We LLG Linear Ball Bearing offer different types of straight movement orientation to address our client’s issues. LLG Linear Ball Bearing has been characterized to have smooth movement, low friction, high rigidity, and long life.

    LLG Linear Ball Bearing has mechanized straight slides, for example, machine slides, XY tables, roller tables, and some dovetail slides. The LLG Linear Ball Bearing offers metal linear bearing where it is a low-cost production of linear motion system for unlimited travel with cylinder axis and plastic linear bearings that are self-lubricating properties of the straight movement system.

    Linear Ball Bearing Producing

    In-demand LLG Linear Ball Bearing for your Business

    Precision Machine Linear Ball Bearing
    Precision Machine
    Robots Linear Ball Bearing
    Packaging Machine Linear Ball Bearing
    Packaging Machine
    Medical Equipment Linear Ball Bearing
    Medical Equipment
    Linear Actuator Linear Ball Bearing
    Linear Actuator
    Electric Equipment Linear Ball Bearing
    Electric Equipment
    Food Machines Linear Ball Bearing
    Food Machines
    CNC Machine Tools Linear Ball Bearing
    CNC Machine Tools

    LLG - Your Professional Linear Ball Bearing

    The LLG Linear Ball Bearing

    Searching for longevity, high-precision, high-rigidity linear ball bearing? LLG Linear Ball Bearing is perfect for your problem.

    In LLG, Linear Ball Bearing offers smooth movement, low friction, high rigidity, anti-corrosion, and long-life linear ball bearing. Not just that, our LLG Linear Ball Bearing can also make standard linear ball bearing according to the client’s samples or drawings.

    Here in LLG Linear Ball Bearing, we deliver promptly, and we offer OEM services. Also, our company LLG Linear Ball Bearing has a nice appearance and complete product system. LLG Linear Ball Bearing also accepts small orders.

    The LLG Linear Ball Bearing has a direct factory supply and a more competitive price. Additionally, the LLG Linear Ball Bearing has rich stock that can satisfy urgent requirements. And we accommodate our customer’s inquiries immediately.

    Furthermore, LLG Linear Ball Bearing has passed the ISO9001:2008 quality standard. Our LLG Linear Ball Bearing has a precision rate of P0 P4 P6 and we use chrome steel & aluminum as our medium in producing Linear Ball Bearings.

    Send you inquires now! Our approachable staff are always prepared to serve you.

    Linear Ball Bearing – Ultimate FAQs Guide

    Are you looking for some answers regarding Linear Ball Bearing? 

    Want to buy some for your business but confused with the quality and manufacture selection?

    This guide will address the frequently asked questions regarding the ball bearing. 

    Some examples are also used to make things more specific. 

    Linear BearingLinear Bearing

    What Is Linear Ball Bearing?

    Linear ball bearings are fluid-filled bearings that help to reduce friction in moving devices. 

    The movement of the devices can be in a straight line or sometimes curved. 

    There is a bushing, rolling system, or pads to carry the load in linear ball bearings. 

    The rod on which the linear bearings are to be placed can be of any length, but the dimensions of the rod are according to the bearing. 

    The shapes of the rails on which the linear ball bearings are mounted can be round polished rods, flat surfaces, or the complex, smooth surfaces on which the bearings can be mounted. 

    The durability of the bearing depends on two factors:

    • The amount of load.
    • The required speed of the bearing.

    Where Are Linear Ball Bearings Used?

    There are the following places where linear ball bearings can be used:

    • In addition, linear ball bearings are available for frequently encountered tasks like drawers, storable surfaces, and ball bearings.
    • Linear ball bearings are used in automation where reduced friction and guided linear motion are needed.
    • Linear ball bearings can be used in printing machines, flame-cutting machinery, and all types of presses.
    • Linear ball bearings are also used in computer and measurement devices.
    • It is also used in constructing sliding devices like linear tables.
    • Linear bearings are widely used in robotics. 
    • They are mainly used in cartesian robots to provide smooth operation, service life, and load capacity.
    • In the medical industry, linear ball bearings are used in surgical tools, dental tools, and laboratory types of equipment.
    • In the food and beverage industry, linear ball bearings are used by processing machines, mixers, and blenders as they are highly resistant to harsh weather.

    Bearing On A RailBearing On A Rail

    How Do Linear Ball Bearings Work?

    Mainly a linear ball bearing has two elements. These are:

    • A carriage.
    • A rolling element.

    First of all, the linear ball bearings are mounted on the rails where they are required. 

    Then the rolling elements of the bearing, which are balls, help the bearing to move smoothly. 

    These linear bearings lay hold of all the weight and allow the equipment to move without any hindrance.

    What Are The Types Of Linear Ball Bearings?

    The types of linear ball bearings are:

    • Air Bearing has extremely low friction having a cushion of air.
    • Flat Ball Cage Bearing is non-recirculating where the balls are placed in a frame at an equal distance.
    • The Ball Bearing Spine has balls that contact grooves in the spine shaft on four sides.
    • Ball Bushing Bearing has rows of balls to reduce friction.
    • Cage Needle Bearing are high load bearings in a composite cage.
    • Linear Hydrostatic Bearing body rides on water or oil that gives almost frictionless movement.
    • Journal Bearing has a hard split cylindrical shell and soft inner cylindrical shell to hold a rotating shaft.
    • Linear Roller Bearing is a circulating roller bearing that can be mounted on a round or flat surface.

    Open BearingOpen Bearing

    How Much Weight Can A Linear Bearing Hold?

    There is a different load-bearing capacity for different types of linear ball bearings. 

    For example, the Ball Bearing Type can bear the load from 4.5 KN to 320 KN.

    There are different types of magnitude, and directions of the load like there can be:

    • Vertical loads.
    • Horizontal loads.
    • Yaw moment roles.
    • The combination of any of the loads mentioned above.

    How Do You Select Linear Bearings?

    Here are the things to consider when selecting a linear bearing:

    • First, check the Load capacity means the weight supported and its duration.
    • Check the lifespan of the bearing. See if it is short term, medium term, or long term.
    • Check the operating speed of the bearing, which depends upon the operating temperature of the bearing.
    • Check the acceleration of the bearing, and it is a very important factor.
    • Check the dimensions of the bearing to make sure that the bearing fits perfectly in the drive mechanism.
    • If all the specifications of two or more bearings are the same and you cannot decide which one to choose, you can choose based on the price.
    • The temperature is the key factor in choosing the right bearing. For high temperatures, the material of the bearings is different, and their load-bearing capacity is also low.

    You can buy high-quality bearings from LLG Bearings. 

    Here you can find a wide range of bearings, and you can buy one according to your requirements.

    Linear Ball BearingLinear Ball Bearing

    Where to Buy Linear Ball Bearing in Bulk?  

    To buy Linear ball Bearing in bulk, the best place is China. 

    From there, you can have a ball bearing at a very affordable price. 

    There are different varieties available, and one can buy the bearings online as well. 

    LLG Bearing is among the best companies in China that offer ball Bearing. 

    What Are The Quality Standards Of Linear Ball Bearing From Chinese Manufacturers? 

    There are the following standards to ensure the proper design and functionality:

    BS ISO 14728-2 

    • The rolling Bearing
    • The linear Motion Rolling Bearing
    • The Static Load Rating

    ISO 10285

    • The rolling Bearings
    • Tolerances Boundary And Dimensions 
    • The Sleeve Type Linear Ball Bearings

    BS 7637

    • The Rolling Bearing
    • The Sleeve Type Linear Ball Bearings
    • The Tolerances And Boundary Dimensions 

    ISO 12090- 1

    • It establishes the tolerance and boundary dimensions for series of 1,2, and 3 for linear motion rolling bearing.

    Is There Any Discount On Bulk Buying Of Linear Ball Bearing From China?

    Many manufacturers in China are selling linear ball bearings in bulk. 

    The good thing about buying these bearings in bulk from China is that the sellers give many discounts. 

    There are different offers like if you buy 500 or 1000 pieces, then there will be a 10 percent discount per piece which can be economical. 

    The other advantages you get after buying the linear ball bearings from China in bulk are:

    • You do not have to pay for the shipping again and again, which is costly.
    • You will get all the required units at one time.

    Open Ball Bearing On RailOpen Ball Bearing On Rail

    How Is Linear Rail Measured?

    Measuring the linear rails properly is very important as choosing the right bearing depends on it. 

    If you measure the rails improperly, your whole machinery will not move properly due to the wrong bearing sizes. 

    A brief guide to measuring the linear rail.

    • First of all, you have to carefully measure the width of the rail with the help of a vernier caliper.
    • Then you have to measure the height of the rail and again use a vernier caliper for it.
    • In the end, you have to measure the length of the linear rail with the help of measuring tape.

    What Is Load Rating Of A Linear Bearing?

    The load ratings of  linear ball bearing have the following types:

    • The Static Load Rating.
    • The dynamic Load Rating.

    The static load rating is the maximum radial or thrust load a bearing can bear before any type of permanent damage. 

    The bearing can be deformed 0.0001 times of the rolling element, and its performance is not degraded. 

    But if it deformed more than this, then it will affect its performance.

    The dynamic load rating is the load where after 1 million inner-race revolutions, almost 90 percent of a group of bearings can survive. 

    Sometimes 90 million inner-race revolutions are used as a basis for the rating by some manufacturers. 

    The load rating is used to evaluate the life of the bearing where failure is the main reason for the failure mechanism.

    Bearings With BushesBearings With Bushes

    What Type Of Bearing Is Used For Linear Motion?

    One of the basic motions is linear motion.

    Linear ball bearings are used for providing linear motion in only one direction. 

    There are mainly two main ways of manufacturing linear ball bearings:

    The Ball Slides:-

    Ball slides are the most common linear slides. 

    They have self-lubricated ball bearings at the bottom. 

    These ball slides have two rows of bearings held by the four rods placed in the opposite direction.

    The Roller Slides:-

    These roller slides are made up of linear roller bearings. 

    These linear roller bearings are crisscrossed to provide greater load capacity and better motion.

    These linear ball bearings can be:

    • Motorized. A drive mechanism moves the equipment.
    • Non-motorized. The equipment is moved by hand or by inertia.

    What Does LM Bearings Mean?

    The term LM Bearings means linear motion bearings. 

    The linear motion bearings offer free linear motion. 

    The linear motion bearings have two parts:

    • One part is the moveable part.
    • The other part is a guide rail.

    The guide rails have holes on them. 

    These are used to fix the equipment that is required to be moved. 

    The bearing size depends on where it has to be placed and the load it is going to carry. 

    If a large bearing is required, it is better to place two small bearings to balance the motion appropriately.

    Linear Bearing On Round Rail Linear Bearing On Round Rail

    What Is the Main Function of Linear Ball Bearing in CNC Machines?

    There are the subsequent essential functions of the linear ball bearing in CNC machines:

    • To make sure that the reducing tool or device tool operative element actions alongside the prearranged route.
    • The linear motion guideways run a stage and linear movement in machine equipment. 
    • Higher correctness and precision may be acquired.
    • It also helps to help system components.
    • It additionally guides the device in a detailed linear motion with negligible friction.
    • It additionally cares about secondary masses (torque, lateral hundreds, etc.)

    How Do You Pack Linear Ball Bearings?

    You can pack linear Ball bearings by following these steps

    • Firstly, you have to Press some lithium grease into the bearings
    • Then grip the back End 
    • and then press the bearing grease in till it squeezes out.

    Round Linear BearingRound Linear Bearing

    How Do You Clean Linear Ball Bearings?

    Ball bearings in lots of styles of programs require care, and this includes appropriate cleansing and re-lubrication. 

    Proper bearing upkeep can significantly develop the operating life of the bearing, as dust and dirt can purposely damage or reduce bearing overall performance. 

    The cleansing technique is a huge one, as bearings can without difficulty be damaged if they may be mistreated. 

    Depending on the industry, specific bearings need one-of-a-kind levels of preservation. 

    People usually need easy wheel bearings, including those on a vehicle, bicycle, or skateboard. 

    Following are the steps to clean linear ball bearings:

    Eliminate the Bearings

    You will need to remove bearings from the shaft/housing while cleaning. 

    Depending on where the bearings are placed, this may be as modest as doing away with a nut. 

    A wrench and screwdriver are required for this step.

    Avoid uninvited mess, put on skinny rubber gloves, or hold a lint-free rag reachable to stay away from getting grease on your palms. 

    You have to take care that the tools you use are smooth to keep away from getting any residue into the bearings.

    Eliminate the Shields

    The bearing, in all likelihood, has a metal or rubber shield to protect the balls and cage, intending to need to be eliminated. 

    Practice a thin razor or similar tool to remove the shield wisely; it can easily be injured during this process. 

    You also have to remove the metal c-clip for the metal fields.

    Clean the Bearing

    There are various effective strategies for the genuine cleansing process, depending on the substances or time you’ve got handy.

    • Firstly, you have to use a sprig can of degreaser, using a quality straw to fill all of the crevices of the bearing. 
    • This could take a couple of minutes, and also, you need to fill and flip the bearing with no end in sight to make sure it’s smooth.
    • The second alternative is to steep the bearings in an endorsed solvent. 
    • In this manner, it’s preferred to place the bearings in a metal basket or deferred on the metallic wire inside the solvent container, in preference to putting them at once inside the box.

    Gasping the Bearing

    When all of the dirt and oil have been removed, you will have to dry the bearing entirely before re-greasing.

    The most realistic approach is to set them out on a flat floor to air-dry, although this could take many hours. 

    You could additionally use a can of compressed air or a similar approach to shorten the drying system. 

    But, it’s far too severe that the bearing does not spin. 

    Without any lubrication, spinning the bearing can motivate instant harm and put on. 

    You may also want to wear eye protection if any free sediments are eliminated for the duration of the procedure.

    Re-grease the Bearing

    While your word that your bearing is clean, dry, and in the first-class condition, you may upload new grease. 

    Make sure to apply extra than sufficient grease at some stage in this process and work it into the bearing carefully to verify that there aren’t any drypoints of touch in the bearing. 

    If you introduce the cage back into the bearing, make certain the cage is completely enclosed in grease to keep away from any holes being bent or metal to steel touch. 

    Additionally, it is dangerous that the cage is positioned in the precise function. 

    Otherwise, the bearing will now not function. 

    The bearing is ready to be reinstalled after the greasing.

    If you aren’t putting in the bearing right away, make sure it’s miles efficiently included in a waterproof wrapper and stored in a secure location.

    How Do You Preload Linear Bearings?

    A solid preload is attained with the aid of keeping the inner and outer portion of the bearing in an area with spacers or locking mechanisms simultaneously as applying an axial load. 

    A solid preload is carried out automatically to 2 radial ball bearings. 

    The modest approach to preload linear bearings placed on preload is to apply a wave spring. 

    The spring acts on the outer ring of one of the bearings. 

    This outer ring must be capable of being axially evacuated. 

    The bearing association includes a preloaded, unmarried-row, deep groove ball bearing at each end of the shaft. 

    LLG bearing is recommended for linear bearings.

    The GuideThe Guide

     How Do Linear Bearings Reduce Friction?

    The ball bearings and the rings are machined precisely to have refined roundness and high tolerance.

    These ball bearings and ball tracks are very well polished to clean rotation. 

    These measurements reduces the turning resistance/frictional torque. 

    The least amount of friction or resistance is found in non-lubricated bearings, but superior metal ball bearings should be lubricated until turning speeds are very low. 

    Grease or lubricants have to be applied continuously.

    Bearing with outright lubrication can bring about untimely failure.

    Can Linear Bearings Rotate? 

    Linear Bearings can have rotational and linear types of motions.

    Even as most bearings and bushings are designed for the simplest type of motion, a few components can integrate each. 

    Nb stroke bush products, as an instance, have raceway grooves alongside the axis of the shaft, identical to NB’s normal slide bushes. 

    But the various ball retainers and the outer casing have rotational ball circuits that permit the complete retainer and shaft to rotate inside the stroke bush unit. 

    This is simply one instance of the numerous sorts of bearings that could combine rotational and linear motions. 

    Allowing for this movement even though it frequently calls for a bigger unit than different bearings relative to the dimensions of the shaft.

    Ball BearingBall Bearing

    How Are Linear Rails Made?

    Linear guide rails are commonly made from excessive electricity, hardened, and galvanized steel to withstand corrosion. 

    Manufactured using a chilly drawing procedure, the steel is formed and profiled before including a curler runner. 

    Usually, profiled rail guides are the maximum suitable for excessive loads, additionally being designed to supply a unique linear motion. 

    Rail guides are available in every duration, from miniature linear rails designed for moving tiny components in constrained areas proper up to massive examples for moving additives that would weigh more than a ton.


    What Are The Types Of The Guide?

    The guideways are specifically labeled consistent with the character of friction among contacting surfaces of the operative detail:

    • Sliding friction
    • Rolling friction

    The maximum usually used shapes of guiding factors of slideways are:

    • v-type
    • flat kind
    • dovetail type
    • circular or cylindrical kind

    Linear Bearing With Vertical Rows Of BallsLinear Bearing With Vertical Rows Of Balls

    Should Linear Bearings Be Lubricated?

    Linear guides may be lubricated with oil, grease, or solid lubricants relying on the application. 

    As with the ball screws, we can additionally specialize in oil and grease lubrication. 

    The rails that the guides slide on have to be gently lined to prevent corrosion, like ball screws. 

    Aimed at the most linear guide and drive programs, grease is the higher lubrication choice. 

    Bearing grease follows bearing surfaces better than oil, lasts longer, and is less likely to run off or be ejected from rotating components than oil.

    Grease lubricants are fabricated from three components: a base oil, a thickener, and components (generally rust inhibitors). 

    What Are The Standards Of Linear Bearing?

    Linear bearings are held to numerous standards to ensure proper layout and functionality.

    • Rolling bearings (BS ISO 14728-2) – linear motion rolling bearings – static load rankings
    • Rolling bearings (ISO 10285) – sleeve kind linear ball bearings – boundary dimensions and tolerances
    • Rolling bearings (BS 7637) – sleeve type linear ball bearings – boundary dimensions and tolerances

    (ISO 12090-1) Establishes the boundary dimensions and tolerances for collections 1,2 and 3 of linear movement rolling bearing, profiled rail publications.

    Open And Close Linear BearingOpen And Close Linear Bearing

    How To Balance Load, Adjustment, And Friction Of Linear Bearing?

    Balancing the load on the linear bearing is very important as it can put extra load on the bearing. 

    To balance the load on the bearing, you have to check the device in which the bearing is placed, whether it is balanced or not. 

    An example of balancing the load can be an industrial fan placing an imbalance from the start or imbalanced after some time. 

    To balance the adjustment, placing the guide properly on the bearing is very important.

    Do not tighten the screws too much, or do not leave the screws loose. 

    To check if the bearing is properly adjusted, apply some oil in the bearing, place it on the rail, and then move it to help your fingers.

    To balance the friction of the bearing, apply some oils or grease on the bearings. It will evaluate the rotation and the stability of the bearing.


    What Is The Difference Between Round And Square Rail Bearings?

    Round rails are applied in lab automation, printing, meeting and inspection stations, welding, and wash down. 

    There are advantages to the usual spherical rails. 

    Bearings can rotate around the axis, bearing in mind barely incredible elevation. 

    The spherical rails can be self-aligning and might shift up to a 1/2 degree to restore 25um parallelism mistakes. 

    In addition, they may be supported, permitting a hole spanning 12-24x the shaft diameter. 

    The authentic invention of the rectangular rail changed into a system tool. 

    They have excessive precision fees, can manage heavy loads and high pressure. 

    Rectangular rails have more floor contact, which equates to better load ability for comparable length.

    They can maintain tolerances among. 0002”-. 001” over ten toes compared to. 01” on spherical.

    Bearing And RailsBearing And Rails

    Who Makes The Best Linear Bearings?

    There are several Chinese manufacturers to design and form the best linear bearings.

    A few standards have been set to purchase a perfect Linear bearing like,

    • Check out its size. 
    • Check the capacity of load-bearing. 
    • Check the price. 

    LLG Bearing is one such brand that fulfills all these aspects.

    They offer suitable bearings by fulfilling the satisfactory level. 

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