Slewing Bearing

  • Bearing Type:Slewing Bearing
  • Inner Diameter(id):0.5mm - 4000mm, Support Customized
  • Outer Diameter(od):0.5mm - 8000mm, Support Customized
  • Width/thickness(t):0.5mm - 5000mm, Support Customized
  • Origin Place:Wuxi or Dalian or Shandong , China
  • Delivery Scope:Europe, Asia, America, Africa, Oceania
  • Pack Solution:Single, Barrel, Paper Roll, Bulk
  • Global Payment:T/T, Paypal, L/C, Western Union
    
    Lotton is a wheel bearing can withstand large axial load, radial load and overturning moment, such as integrated load, set bearing, large bearing rotation, transmission, fixed and other functions in a special structure. Under normal circumstances, Lotton wheel bearings themselves are mounting holes, lubricants and seals, to meet the different needs of a variety of different conditions to work under the conditions of various types of host; on the other hand, Lotton wheel bearing itself has a compact, Boot rotation convenience, ease of installation and ease of maintenance, and other characteristics, are widely used for lifting and transport machinery, mining machines, construction machinery, port machinery, wind energy, medical equipment, radar and missile launchers and other large rotary device.
    Outline
    Lotton is a wheel bearing can withstand large axial load, radial load and overturning moment, such as integrated load, set bearing, large bearing rotation, transmission, fixed and other functions in a special structure.
    The basic structure
     The basic structure of Lotton slewing ring turntable bearings usually consists of four components inner, outer ring, rolling elements, spacers and the like. As the core components using rotary bearing, it can withstand the axial force, radial force. Its many forms, but basically similar structures.
    By the left and right are (part): 1. outer ring (with teeth or toothless) 2 3. sealing tape rolling elements (ball or roller) 4. refueling nozzle
    From left and right, respectively (lower part): 1. plug 2. 3. inner taper pin (with teeth or toothless) 4. 5. isolation block or cage mounting holes (wire holes or aperture)
    01 Series Lotton wheel bearings
     Single-row four point contact ball single row four point contact ball bearing turntable Lotton by the inner, outer, ball, isolated block of four major components, compact, light weight, and the ball arc raceway of four point contact , can withstand the axial force, radial force. Rotary conveyer, welding operation machine, small cranes and excavators and other engineering machinery can be selected.
    02 Series Lotton wheel bearings
     Double-row ball bearing double row ball Lotton turntable has three races, balls and spacers can be directly discharged into the upper and lower raceway, according to the situation by force, arranged two rows of different diameter steel balls. This assembly is very easy to open, bearing raceways arc angle up and down are 90 °, can withstand great axial force and tilting moment. When the axial force radial force is greater than 0.1 times, the raceway must be specially designed. Double-row ball slewing bearing axial, radial dimension relatively large structural tightening. Especially for applications that require above average diameter of tower cranes, truck cranes and other handling machinery.
    Lotton Series wheel bearings
     Single-row cross roller Lotton single row cross roller wheel bearings, composed by the two seat, compact, light weight, high manufacturing precision, small assembly space for the installation of high precision, the roller is 1: 1 Cross arrangement, can withstand the axial forces, tilting moment and large radial force, the lifting transport, engineering machinery and military products are widely used.
    Series Lotton wheel bearings
     Three-row roller-type three-row roller bearing turntable Lotton has three races, from top to bottom and radial raceway each separately so that each row roller loads can be determined exactly. Able to withstand various loads, it is four products in one of the largest carrying capacity, axial and radial dimensions are larger, solid structure, especially for applications that require larger diameter heavy machinery, such as bucket wheel excavators, wheel cranes, ship cranes, harbor cranes, steel work stations and large-tonnage truck cranes and other machinery.
    Light Series Lotton wheel bearings
     Light Light Lotton slewing ring turntable bearings slewing ring having the same general structure, light weight, flexible rotation. Widely used in food machinery, filling machinery, environmental protection machinery, and other fields.
    HS series Lotton wheel bearings
    Single-row four point contact ball bearing turntable Lotton composed by two seat, compact, ball and arc raceway of four point contact. Mainly used truck cranes, tower cranes, excavators, piling machines, construction vehicles, radar scanning equipment to withstand the overturning moment and vertical axial force, the level of tendency force of machinery.
    HJ series Lotton wheel bearings
    Lotton single row cross roller wheel bearings, composed by the two seat, compact structure, high manufacturing precision, small assembly space, to install high precision roller 1: 1 staggered, can withstand the axial force, tilting torque and greater radial force, which is widely on transport, engineering machinery and military products for.
    Other series Lotton wheel bearings
    ■ Single-row four point contact ball bearing turntable Lotton (QU, QW, QN series)
     Single-row four point contact ball bearing turntable Lotton ■ four point contact slewing bearing Lotton (VL series)
    ■ four point contact slewing bearing Lotton (VS series)
    ■ four point contact slewing bearing Lotton (V series)
    ■ Single-row cross roller slewing bearing Lotton (XS Series)
    ■ Single-row cross roller slewing bearing Lotton (X series)
    Code Composition
    Lotton turntable bearing code reprLottonntation
    Code Composition
    Bearing code from the underlying code and post code composition.
    The fundamental code of composition
    Code is divided into three parts simply, the front for the type of construction and transmission type code, central to the rolling diameter (for two or more rows of rolling element bearings for the maximum roll diameter), center of gravity of the rear rolling circle diameter (for two rows above the rolling bearing body weight is the maximum scroll heart circle diameter)
    1, type of construction code rules in Table 1.
    01 four-point contact ball bearing; 02 Double-row ball bearing; 11 interspersed cylindrical roller bearings; 13 with three-row cylindrical roller bearings.
    2, the drive type code shown in Table 2 rules.
    0 toothless formula; 1 involute cylindrical gear external gear smaller modulus; 2 involute cylindrical gear outer teeth larger modulus; 3 involute inner cylindrical gear smaller modulus; 4 involute cylindrical gear internal teeth larger modulus.
    3, the preparation of the rules radically code
    Fundamental code layout, the structure type code and transmission type code ligatures, the front, middle and rear with between. "" Separated.
    Parameter Description
    Tolerances, clearance
    Lotton wheel bearings of tolerance and clearance in line with JB / T 10471 "Rolling Lotton wheel bearings", with Lotton wind turbine wheel bearings of tolerance and clearance in line with JB / T 10705 "Rolling wind turbine bearings."
    If the customer dimensions, tolerances, clearance have other special requirements, we can provide the appropriate product based on use conditions and user requirements.
    Cage
    Lotton wheel bearing retainer types are used to keep the whole rack, segmented holding different types of aircraft structures or isolated cage and so on. Where the whole cage or segmented cage using 20 steel or ZL102 cast aluminum alloy. Isolated cage 1010 polyamide resin, ZL102 cast aluminum or aluminum bronze QA110-3-1.5. With the development of nylon GRPA66.25 materials industry has also been able to promote the use of the segmented cage design.
    Applied Materials
    Rings and rolling element material
    Under normal circumstances, Lotton wheel bearings rolling using whole-hardened carbon chromium bearing steel. Grades or GCr15SiMn GCr15 steel; Lotton turntable bearing ring is using the surface of hardened steel, when the user no special requirements, generally used 50Mn steel, but sometimes in order to meet the needs of some special applications, the host, can also be provided according to the user The specific conditions of use choose other brands of surface hardened steel, such as 42CrMo, 5CrMnMo like.
    Cage materials
    Lotton wheel bearing retainer has a monolithic structure, segmented, isolated block type and the like. Wherein the monolithic and segmented cage with 20 steel or ZL102 cast aluminum alloy. Isolation Block 1010 polyamide resin, ZL102 cast aluminum alloy or the like.
    Seal material
    Lotton wheel bearing seal materials used with oil and rubber material or nitrile rubber material manufacturing.
    Ferrule materials and rough supply state code according to the provisions of the table, the table "T" reprLottonnts the ferrule blank as quenched state supply, "Z" said ferrule blank to normalizing the status of supplies.
    Code 010203040506
    Materials and rough state 45BT 45BZ 42CrMoT 42CrMoZ 5CrMnMoT 5CrMnMoZ
    Code 070809101112
    Materials and rough state 42SiMnT 42SiMnZ 45MnT 45MnZ 50MnT 50MnZ
     
    Rolling body center circle diameter 3150mm, ball diameter 75mm, gear modulus m = 20mm, rings material 50Mn, blank material is normalizing the status of the internal teeth made four-point contact ball will go to support reprLottonnted as 013.75.3150.12
    Lotton turntable bearing material
    Under normal circumstances, Lotton turntable bearing rings selection 50Mn, but sometimes in order to meet the needs of a particular application host selection 42CrMo. Rolling element is generally used GCr15SiMn. The holder of the type with integral, segmented, isolated block type, such as different types of structures. Monolithic or segmented cage using 20 # steel or ZL102 cast aluminum alloy. Isolation block type cage 1010 polyamide resin, ZL102 cast aluminum or aluminum bronze QA110-3-1.5. Seal material: oil and rubber, fluorine rubber, oil NBR.
    Lotton turntable bearing structural forms of commonly used single row, double row four point contact ball Lotton wheel bearings, double row angular contact thrust ball Lotton wheel bearings, cross cylindrical roller and cross tapered roller wheel bearings Lotton, three-row cylindrical roller Lotton wheel bearings, ball stud mix different structural forms Lotton wheel bearings. Bearing in accordance with the above types of distribution sites and whether toothed gears are divided into different structures no gear, external tooth and internal tooth like.
    Bearings
    Bearing lubrication
    Lotton wheel bearings mostly in the low-speed heavy working conditions to work under normal circumstances the use of the type of lubricating grease filled bearing lubrication can be applied to achieve very satisfactory results, grease commonly used calcium-based grease, lithium-based grease, aluminum grease and high temperature grease, the user can choose the most suitable grease depending on the circumstances.
    Bearing seals
    Lotton wheel bearing seal on the one hand is to prevent grease leakage has been filled out, the other is to prevent outside dust, impurities and moisture intrusion inside the bearing and affecting its normal work. Since Lotton wheel bearings mostly work in low speed under heavy load, so seal type bearings using rubber seals and labyrinth seals two structures. The rubber seal structure itself has a simple structure, small footprint, reliable sealing performance, etc. has been widely used, but its shortcomings are at high temperature rubber lip seal is easy to premature aging and loss, it is in high temperatures under working conditions Lotton wheel bearings should work labyrinth seal.
    Tri-row combination Lotton roller wheel bearings (slewing ring)
    Three-row roller slewing ring with three races up and down and radially separated from each raceway, so that each row roller loads can be determined precisely, can withstand various loads, is four products in the carrying capacity the largest one, axial and radial dimensions are larger solid structure, especially for applications that require larger diameter heavy machinery, such as bucket wheel excavators, wheeled cranes, marine cranes, ladle turret and large-tonnage truck cranes and other machinery on.
    Double row angular contact ball bearing turntable Lotton (slewing ring)
    Double-row slewing bearing has three seat, must be specially designed raceway. Double-row slewing bearing axial, radial dimension relatively large, solid structure, especially suitable to the requirements of the above average diameter of tower cranes, truck cranes and other handling machinery.
    Lotton single row cross roller wheel bearings (slewing ring)
    Single-row crossed roller slewing ring, composed by two races, compact, light weight, high manufacturing precision, the small assembly space, installation of high precision, the roller is 1: 1 staggered, can withstand axial force, greater radial force and overturning moment. It is widely used in lifting transport, engineering machinery and military products.
    Single-row four point contact ball bearing turntable Lotton (slewing ring)
    Single-row four point contact ball bearing slewing ring is composed of two seat composition, compact, light weight, and the ball arc raceway of four point contact, can bear axial force, radial force and overturning moment.
    Production flow chart
    Raw materials → forging → lathe → Test → heat treatment → grinding → detection → quenching → fine grinding → grinding → → assembly → detection equipment seized → Packaging → packing → Transport → customers.
    Rotary turntable bearing material: 50Mn, 42CRMO, GCR15SIMN, 9CR18MO.
    Rotary wheel bearings precision: P0, P6, P5, P4, P2 precision from low to high, the price will be from low to high.
    Mounting Feature
    Lotton front wheel bearing is installed, first on the mounting surface of host checks, requiring support should have sufficient strength, connecting surface should be machined smooth surface free of debris and burrs. For flatness can not be machined to achieve the desired, you can use high-intensity special plastic injection filler made to ensure the accuracy of the mounting surface and for damping.
    Lotton turntable bearing rings have hardened soft band, which in the end surface of the ferrule are marked "S", the software should be installed so that a position in a non-load area or infrequent load area (plug hole is always located soft band office).
    When you install Lotton wheel bearings, should act to advanced positioning, cross tighten the mounting bolts and check the rotation of the bearing. Tighten the bolts should have adequate preload, its preload bolt material shall yield 70% limit. Mounting bolts should be equipped with tempered flat washer and spring washer is strictly prohibited.
    Applications
    Construction Machinery
     Disc feeder Lotton wheel bearing wide application, engineering machinery is wheel bearings Lotton initial application is the most widely used places such as earth-moving machinery, excavators, disintegration machines, stackers and reclaimers, graders, rollers, compaction machine , drilling machines, boring machines. Others include:
    Concrete: concrete pump, concrete mixing machine boom, cloth belt machine;
    Feeding equipment: Disc feeder, Mixer;
    Lifting: wheeled cranes, crawler cranes, gantry cranes, tower cranes, forklift, with the crane, gantry cranes, ship cranes;
    Ground handling equipment: the impact of reverse circulation drilling rig, rotary drilling rig, the impact rotary drilling rig, rotary drilling rig, reverse circulation rotary drilling rig, positive circulation rotary drilling rig, long auger drilling rig, engineering rig diving, static pile driver, pile-driving machine ;
    Project Ship: dredger;
    Special Purpose Vehicle: bridge inspection car, fire truck, gondola, flat beam carrier, aerial vehicles, self-propelled aerial work platforms;
    Light industrial machinery; beverage machinery, blowing machine, packaging machinery, filling machine, rotary bottle machines, injection molding machines.
    Various device platforms
    In addition to all kinds of construction machinery, the scope of application of Lotton wheel bearings have been gradually expanded, similar port equipment, metallurgical equipment, drilling rigs and other equipment platform has begun large-scale use Lotton wheel bearings instead of the original bearings.
    Port equipment: Port cranes, reachstackers
     Mining machinery;
    New Energy Equipment: wind power generation equipment, solar power generation equipment;
    Metallurgical equipment: Metallurgical cranes, ladle turret, grasping steel machine, mud gun, blowing means;
    Playground Equipment: Ferris wheel;
    Airport equipment: Airport tanker;
    Military equipment: radar, tanks, etc;
    Robots: palletizing robot, welding robots, robot;
    Medical equipment: Gamma Knife;
    Environmental protection equipment: scraper;
    Parking equipment: Tower Garage;
    Rig equipment, kitchen equipment, numerical control equipment (cutting machine, quenching machine), plane.
    Rotary wheel bearings use:
    1. trailer: This type of bearing used in a variety of occasions, the most important applied transportation industries, agricultural trailers, irrigation systems and airport luggage rack. Application on the vehicle, passing bearing axial load, radial load and torque. In other applications, most of them passed axial load. Lotton specializes in manufacturing trailer with rotating turntable bearings.
    2. Wind power: wind turbine bearings usually contains a yaw bearing, pitch bearings, transmission bearings (main shaft and gearbox bearings). Lotton is to provide customers with yaw bearings and pitch bearings. Connecting portion yaw bearing mounted on a tower and cockpit, pitch bearings installed in the root and hub joints of each blade. Each wind turbine with a yaw bearing and three pitch bearings.
    3. Solar: rotating solar panels to increase energy is a good solution. Since the Lotton bearing has a very compact design, supply Europe's largest solar farm.
    4. Medical equipment: Lotton bearing developed high-precision, low noise, high life, high reliability series of medical equipment rotary turntable spindle bearings, has been widely used in gamma knife, CT machines, MRI machines and other large medical equipment.
    5. Robotics: Industrial robots and other equipment. Lotton wheel bearings installed in the joints of the robot, this structure can achieve incredible high close rotational movement.
    Lotton turntable bearing role
    Its role is to the upper and lower portions of the machine are connected together, at the same time for supporting the upper load weight and machine generated when the work, and the upper part of the mechanical rotation relative to the lower (or bottom relative to the work rotation).