YRT-50 Rotary Table Bearings (150x240x40mm) Machine Tool Bearing CT scanner bearings

Model number- YRT-50
Inner ring(mm)- 50
Outer ring(mm)- 126
Width(mm)- 30
Weight(Kg)-1.6
Fixing Hole(Outer ing)
Materials- GCR15/GCR15SiMn
Precision grade- P5/P4/P2
Lubrication type- Grease lubrication
Rotating part- Inner ring/Outer ring
Load direction- Multi-load
Structure- Integrated Inner/Outer Ring

YRT50 bearing can be used to the machine tool and other high precision machinery of the rotary table or sub-set, and also can be sued for chuck, measuring instruments and test equipment and rotary table configuration.

Here some model for your reference:
YRT50
YRT80
YRT100
YRT120
YRT150
YRT180
YRT200
YRT260
YRT325
YRT395
YRT460
YRT580
YRT650

How to choose the robot shaft parts material?

The blank is the most initial state of a part,but Parts are formed by the blank according to various technical requirements after a variety of processing.The blank choice is not only affects the blank manufacturing technology and the cost of enterprise, but also has close relationship with the machining technology and quality of parts.Therefore, it needs the close cooperation of technicians in both the manufacturing and mechanical processing to reasonably determine the blank material, structural shape and size .

Ⅰ. Requirements to be met in material selection
Mechanical products are composed of a number of parts, ensure the use of parts is to ensure the use of the product requirements.Therefore, the blank selection must first meet the parts performance requirements.

1) Structural shape and size requirements
Due to the different functions of mechanical parts, their structural shapes and sizes are often very different, and various blank manufacturing methods have different adaptability to the structural shapes and sizes of parts.Therefore, when selecting the blank, the structural shape and size characteristics of the parts should be carefully analyzed.Select suitable blank manufacturing method.

How to select crane slewing bearing type ?

Slewing ring bearings is a bearing that can bear a lot of weight, often used in different industries.And there are many types of swing bearing, different types have different use case.But generally speaking, slewing ring are more used in construction machinery, so what type of slewing bearings should be used by cranes?

FRB BEARINGS technology personnel according to their years of related experience, according to crane is a large machinery, so choosing the slewing bearing must have a lot of tolerance, and compact structure.Therefore, the crane slewing bearing can choose three rows of roller type turntable bearing, single-row four-point contact ball type slewing ring, which can increase the overall contact area and withstand various loads at the same time. The diameter of this type slewing ring bearing is also large, which is specially used for heavy machinery equipment.

How to maintain the tower crane slewing ring? Here are 9 points for reference

How to maintain the tower crane slewing ring? Here are 9 points for reference

(1) Tower crane maintenance technology slewing bearing installation support must be rigid and the mounting surface should be smooth.Before assembling the slewing bearing, the bearing should be de-stressed, and the maintenance of the tower crane can reduce the deformation of the slewing bearing.The contact surface of slewing ring must be cleaned during assembly.

(2) The changes of noise and rotary resistance moment should be paid attention to during the use of tower crane maintenance technology, tower crane maintenance if there is abnormal phenomenon should be removed and checked.

(3) The lifting and maintenance technique of tower crane rotating support must be lifted horizontally or stored, no vertical lifting or storage,to avoid deformation.

Agricultural machinery slewing ring bearings

FRB agricultural machinery slewing ring structure is characterized by using flange Bearings, formed in the ring raceway for single row ball bearing, with a full, no gasket.These slewing bearings are neither toothed nor provided with washers and are provided with a surface coating to prevent corrosion.

Benefits:
Low speed rotation, single volleyball flanged slewing bearings for filling machines can withstand axial loads of up to several hundred kilograms.

Special technical features:
FRB Bearings agricultural machinery slewing bearing must be fixed hole, used to install bolts, or ring can be directly welded to the supporting frame.

What's thin wall bearing characteristics and how to maintain?

Thin wall bearing products characteristics
In order to obtain bearing low friction torque, high rigidity and good rotary accuracy, a steel ball with small outside diameter was used.The use of hollow shafts ensures lightweight and wiring space.The thin wall bearing has realized the extremely thin bearing section, also has realized the product miniaturization, the lightweight.

The thin wall series 6700 and 6800 has all kinds of dustproof cover forms, with flange forms, stainless steel forms and wide forms, etc.

Maintenance procedure for thin wall bearing
1. Remove the wheel first. Remember to put the screw in place.

2. Take off the bearing. Some of the core of the wheel is so tight that it is difficult to remove the bearing.use the hexagon plate hand (is the one to remove the screw) to dig it down hard, rest assured, the bearing is not easy to break down!

3. Use the toothbrush to brush off the dirty surface of perine, you do not do this step, there is no difference!

What are the methods to remove the bearing inner and outer rings?

Anyone familiar with slewing bearing knows that it is composed of four parts, including inner ring, outer ring, rolling body and separator.It can bear axial force and radial force at the same time.It is widely used in heavy equipment such as lifting transport machinery, extractors and construction machinery.So, when we want to take out the bearing inner and outer rings what are the methods?Today, let me give you a brief introduction.

The method to remove the bearing inner and outer ring is as follows:
1. Steel ball method: 
3 or 4 steel ball in the damaged bearing rolling body and inner ring shall be distributed evenly inside the bearing outer ring. From the other end of the half axle sleeve pipe, iron bar slightly larger than the bearing inner diameter shall be used to tighten the bearing inner diameter, and it can be struck with hammer.

How to solve the unflexible slewing bearing？

For mechanical products, the slewing ring bearing is one of the indispensable parts, but sometimes we will find that it is not flexible would happen, if it is not flexible, so there will be a lot of trouble in use, and there is no way to good work, FRB Bearings appear to share slewing ring binding or movement inflexible reasons and solutions.

1. The deformation or broken tooth of the swing bearings causes the stuck or the movement is not flexible.
The solution: repair the gear, reweld the gear.

2. There is a problem with the slewing bearing sealing system, which will cause the entry sundries, such as stones, sand, etc. to become stuck or not sensitive to movement.
The solution: get rid of all the clutter.

Here some professional advice about bearing installation and selection

Various types of bearings have different characteristics due to different designs.There is no fixed mode for bearing type selection due to the specific mounting position of bearing and the variability and complexity of application occasions.In order to adapt to the specific installation position and application conditions of a certain host, the following factors should be considered comprehensively:

1. Dimension space
Mechanical design, generally determine the size of the shaft first, and then choose the bearing according to the size of the shaft.Generally, ball bearings are used for small shafts.Cylindrical roller bearings, spherical roller bearings, tapered roller bearings (ball bearings are sometimes used) are used for the big shaft.

If the radial space of bearing mounting position is restricted, bearings with smaller radial section height should be used.If the axial space of the bearing mounting position is restricted, the bearing with a smaller width can be used.

What's the reason of cross roller bearing temperature raise?

Cross cylindrical roller bearing high temperature is a common fault of rotating equipment, which will reduce the bearing service life and increase the maintenance cost. When the temperature rises fast and the temperature exceeds the standard, it is easy to cause unplanned shutdown or load reduction of the unit, which has a great impact on economic benefits.Therefore, it is the guarantee of the continuous safe operation of the equipment to quickly determine the cause of the fault and take proper measures to solve it.

The reasons for cross cylindrical roller bearings temperature rise are as follows:

First: Does the quality of the lubricant deteriorate?If the lubricating oil viscosity is large, the precision cross roller bearing temperature will increase.

What should be paid attention to during slewing drive loading and unloading?

Now in the market, many different kinds of slewing drive, slewing bearing drive in the process of loading and unloading transportation will encounter all sorts of problems, if improper handling, can cause damage of slew drive, cannot use in machinery production, cause the waste of funds, so What should be paid attention to during slewing drive loading and unloading?

First of all, judging by market reputation manufacturers strength, to know the slewing bearing manufacturer with market reputation, and is not packing up, but because people buy products, have high user experience, users can help enterprises promote the products, under the accumulation of time, products let many people and has a good reputation.

How to repair slewing bearings raceway peeling layer and the tooth ring broken tooth?

Slewing bearings is a kind of large bearing which can bear comprehensive load.However, this part has been used for a long time. Due to the manufacturing quality problems such as the material pores or interlayers, the hardness of the hardened layer and uneven depth of the raceway, etc., or some external reasons, the raceway peeling layer or the tooth ring broken tooth, the equipment cannot work normally.How to fix it?Let me explain to you today!

For raceway stripping, the first to make a correct judgment.The appearance of peeling layer, generally in the outside is not easy to see.Generally, the raceway has stripping layer: when the main engine is carrying the rotation, the raceway has a "cro-crook" sound, and the rotating speed is not uniform or a certain azimuth speed slows down significantly with slight vibration;Too high temperature rise or too high current;Key slots of rotary motors and hydraulic couplers or coupling etc. are jammed.

Discussion on changing technology of large slewing bearing of bucket turbine

Bucket turbine is the main equipment of the coal conveying system, and the  operation status of bucket turbine directly affects the load of the  unit.Large slewing bearing is an important part of bucket turbine rotary  mechanism. After the slewing bearing is damaged, how to replace it safely  and with high quality in a short time is the main purpose of this paper.  This paper analyses the cause of damage of large slewing bearing and  introduces emphatically the technology of "jacking method" to replace large  slewing bearing of bucket turbine. This method is used to replace the big  bearing of DQL1200/1600-30 type bucket turbine of shentou NO.2 power plant.  The practice proves that this method is successful. The construction period  is only 6 days and the cost is 100,000 yuan. More than 1 year of operation  after replacement, stable rotation, good meshing of big and small gears,  normal operation and rated output.

The reasons for turbine large slewing bearing damage are as follows:
(1) Big bearing has been in service for 12 years, with a long cycle.  Defects were exposed as early as 2001 when it was overhauled.

What are the selection tips for slewing ring bearings?

In the mechanical industry, slewing bearing has been widely used, because the development of slewing ring, varieties are increasing, and how to choose the slewing bearing using in machinery, we must have some understanding.Let me follow FRB Bearings staff to learn about some of the slewing bearing selection techniques.

Bearing type selection
Bearing type is generally chosen by the user's technical personnel according to the use conditions of the supporting products and the bearing load.The sales mainly know whether the actual load of the user is consistent with the selected bearing. If the bearing fails to meet the use demands, the customer should be advised to change the model as soon as possible.

4 factors for influence slewing bearing capacity

Slewing ring failure form has two kinds, one is the raceway damage, the  second is broken teeth, and the raceway damage accounted for the proportion  of over 98%, so FRB Bearings said, the raceway quality is the core of the  quality of slewing bearing, there are many factors influencing the quality  of the slewing ring raceway.Among them, the raceway hardnesss, raceway  hardener depth,raceway radius of curvatureand and aceway contact angle are  undoubtedly the most important four influencing factors.They affect the  quality of the raceway in different ways and determine the bearing capacity  and service life of the slewing bearings.

Raceway hardness
The hardening hardness of the slewing bearing raceway has a great impact on  its rated static capacity. The minimum hardness specified in the standard  is HRC55, and the actual average quenching hardness is usually around  HRC57. Therefore, the actual bearing capacity of most of the slewing  bearing is higher than the theoretical value calculated according to  HRC55.When the hardness is lower than HRC53, even if the safety factor of  1.2 is left, it is not safe to use. In particular, when the hardness is  only HRC50, the safety factor of 1.7 is useless, which is very  dangerous.Lack of hardness can easily cause the failure of slewing bearing,  from the beginning of the pitting on the surface of the raceway to the end  of collapse.

What are the used screws requirements in building mechanical slewing bearings?

It is well known that slewing bearings are used in many fields and are also  one of the most important construction machinery parts.To ensure the safe  operation of slewing ring, the whole process of production and installation  of slewing bearings is often involved.FRB Bearings will introduce what are  the used screws requirements in building mechanical slewing bearings?, come  together to understand!

1. Requirements for bolts used:
The size of bolts used shall conform to the regulations of GB/ T5782-2000  and GB/ T5783-2000, and the strength grade shall not be lower than the 8.8  level specified in GB/ T3098.1-2000, and the proper strength grade shall be  selected according to the bearing capacity.So make sure you choose the  right bolt.That's how it works.

2. Operating standard of nuts:
The size of nuts shall comply with the provisions of GB/ T6170-2000 and GB/  T6175-2000, and their mechanical properties shall comply with the  provisions of GB/ T3098.2-2000.Therefore, the standard of nut use is also  very strict, which should be noted.

How is the slewing bearing sealed at high temperature?

Slewing bearing is an important part of mechanical equipment, which is not only used in engineering machinery, but also widely used in port, military, wharf and other fields.But now many friends are asking about the slewing bearing at high temperature if the bearing is sealed.Here, FRB BEARINGS are simple to talk about.

The slewing bearing is mainly composed of upper ring, lower ring and a full complement ball.These two single row and double row designs, as well as the convenience of pre-drilled mounting holes.In real life, some bearings are only tightened at the fixed blade end, some are tightened at both the fixed blade end and the moving blade end, the way of tightening is cylinder type, there are also institutional linkage.Under the working environment of heavy load and low speed, the bearing is sealed by rubber sealing ring or labyrinth seal.

4 main advantages of slewing drive,FRB Bearings let you know!

FRB Bearings slewing drive with advanced processing and manufacturing and  assembly process, not only ensure the security, stability and reliability  of the gear reducer and protective but also has beautiful appearance.FRB  Bearings slewing drive four advantages.

1. High integrability of slewing drive
The slewing drive is highly integrated, and the maximum and minimum slewing  bearings reducer can drive the parts and the load difference is dozens of  times, but their sizes, specially the axial size of the transmission chain,  have little difference. This advantage is conducive to the flattening of  the structural form of the series drive connection parts, so as to reduce  the whole mechanical equipment.

What's the matter need to notice before the slewing bearing installation?

Turntable bearing usually consists of four parts: inner ring, outer ring, roller, spacer, etc.Because the core component adopts slewing bearings, it can bear axial force and radial force at the same time.It has many forms, but its structure is basically the same.Swing bearing is widely used in life, it is an indispensable part in people's life. So, what's the matter need to notice before the slewing bearing installation?Learn from FRB BEARINGS.

Before installing slewing ring bearings, you need to know the following methods:

3 Reasons-Why crossed roller bearing is the most suitable for robot arm?

The stretching and lateral movement of the robot arm all belong to linear motion. There are many kinds of mechanism to realize the reciprocating and linear motion of arm, such as piston oil (gas) cylinder, gear rack mechanism, screw nut mechanism and connecting rod mechanism. Because the piston oil (gas) cylinder is small in size and light in weight, it is widely used in the robot arm structure.

There are many kinds of mechanisms to realize the rotary motion of robot arm, such as vane rotary cylinder, gear drive mechanism, sprocket drive mechanism, piston cylinder and connecting rod mechanism. The most suitable bearing for robot arm is cross roller bearing. Why do you say that?