SP NN3020K Double Row Cylindrical Roller Bearing-manufacture,factory,supplier from China

Railway shaft double row tapered roller bearings have the following characteristics:High load bearing capacity: Double row tapered roller bearings are designed with two rows of rollers, so they can withstand large radial and axial loads.High temperature resistance: suitable for high-speed operation and high temperature environment, with good heat resistance.Strong aligning ability: can maintain good working performance when bearing installation is not accurate or axial displacement.Easy assembly and disassembly: double row tapered roller bearing structure is relatively simple, easy disassembly

Double-row tapered roller bearings have many advantages in structure and performance, so they are widely used in industrial production.New domestic modelsOld domestic modelInner diameter (mm)Outer diameter (mm)Width(mm)Cr(kN)Cor(kN)Grease lubrication speed (r/min)Oil lubrication speed (r/min)Weight (kg)302027202E15351114.913.412000160000.053302037203E17401220.821.89000120000.079302047204E20471428.230.58000100000.126302057205E25521532.237700090000.154302067206E306217.543.250.5600075000.231302077207E35721754.263.5530067000.331302087208E4080186374500063000.422302097209E45851967.883.5450056000.474

According to whether the ring has a rib or not, NSK cylindrical roller bearings are divided into NU, NJ, NUP, N, NF and other single-row bearings, and NNU, NN double-row bearings. The bearing is a structure with separable inner ring and outer ring. Cylindrical roller bearings with inner or outer rings without rims, the inner and outer rings can be axially moved relative to each other, so they can be used as free-end bearings.

Single row tapered roller bearing is a common rolling bearing, which is composed of an inner ring, an outer ring, a roller and a cage. Its structure is similar to a conical shape, which is why it gets its name.The contact points on the inner and outer rings are conical and suitable for bearing large loads in both radial and axial directions.

We provide a full range of UBC bearings, and focus on bearing categories, if you want to buy ubc bearings, please contact us for a ubc price list.UBC Cylindrical Roller BearingsCylindrical roller bearings are designed for high radial load applications. The bearing designs are available in single row, double row, multiple row, cage or fully complementary construction.

Slewing bearing has four series of toothless, external and internal toothed four-point contact ball bearings, double row angular contact ball bearings cross cylindrical roller bearings, cross tapered roller bearings and three row cylindrical roller composite bearings, of which four-point contact ball bearings have higher static load capacity, cross cylindrical roller has higher dynamic load capacity, The pre-interference of cross-tapered roller bearing can make the bearing have greater support rigidity and rotation accuracy.

Tapered roller bearings are separate bearings. Both the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into single, double and four-row tapered roller bearings according to the number of rollers installed. Single-row tapered roller bearings can support radial loads and axial loads in one direction.The type code of tapered roller bearings is 30,000, and tapered roller bearings are separable bearings.

Some cylindrical roller bearings have no ribs on either theinnere rings canelative to eacese can bfree-end bearingsCylindrical roller bearingouter rings has two ribs aother ringhas one ,are capable of takingxial loaone directiobearingshave high radial rigidity and are used primarily for precisionmachine tools.Types NU , N , NNU , and NN are suitable as free-end bearingsTypes NJ and NF can sustain limited axial loads in one directionTypes NH and NUP can be used as fixed-end bearingsNH-type cylindrical roller bearings consist of the Nj-type cylindricalroller bearings andHu-type Lshaped thrust co

Railway Axle BearingsAxle bearings: tapered roller bearings, tapered roller bearing boxes, cylindrical roller bearings, spherical roller bearings. Railway axle bearings can be subjected to high shocks and loads. Mounting space is also limited, so in many cases compact, double-row bearings with high load ratings are used.Railway Axle Box BearingAxlebox bearings should have a large load carrying capacity, be able to resist shock vibration, and must have a high life expectancy, safety and reliability, smaller size and quality.

Advantage of 30307 Bearing• 302XX, 303XX, 313XX, 320XX, 322XX, 323XX and 329XX series• Double row tapered roller bearing series (details available on request)• Pressed steel and polyamide cages• Standard accuracy P0 and higher accuracy P6.• A variety of inch bearings are also availableTypeA singleSingle row tapered roller bearings can withstand combined radial and axial loads.

The different types of cylindrical roller bearings are designated based on their structural features and intended applications: N..EM: Cylindrical roller bearing with a standard inner ring without any ribs, suitable for radial loads. NU..EM: Bearing with aremovable inner ring and two integral flanges on the outer ring, designed for high radial loads and accommodates axialdisplacement. NJ..EM: Features a removable inner ring and one integral flange on the outer ring, primarily used for applicationswhere axial displacement is required.

The important construction modes of the turntable bearing seat are: four-point contact ball bearing seat, double-row angular contact thrust ball bearing seat, interpenetrating cylindrical roller bearing seat, interpenetrating tapered roller bearing seat, and three-row cylindrical roller with turntable bearing seat.According to whether the gear can be carried and the spread of the gear is divided into: toothless, external or internal gear and other different structures.The four-point contact ball turntable bearing seat has a higher static bearing capacity, the interspersed cylindrical roller be

Four row tapered roller bearings are mainly used for work rolls, support rolls, and billet breakers of various plate and strip rolling mills. The clearance of the bearing is changed by adjusting the thickness of the spacer to make it more suitable for the working condition.1. Strong bearing capacity: four row tapered roller bearings can withstand greater loads under the same size, because it is shared by multiple rollers, so it has higher carrying capacity and better distribution performance.2.

Product Description:The relatively low carbon content of Q295A steel makes the steel have good welding performance, which is convenient for site construction, and can be used to make the frame structure of the workshop, such as beams, columns, etc., and quickly build the main structure of the workshop.Product Namecarbon steel plate/sheet StandardASTM   A285, ASTM A283, SA516, SA517, EN10025-2-2004, ASTM A572, ASTM A529, ASTM  A573ASTM A633, JIS G3101-2004, ASTM A678 ASTM A588, ASTM A242,etcMaterialA36,SS400,A283   Gr.A,.Gr.B.Gr.C,A285 Gr.A,.Gr.B.Gr.C,Q235,Q195,Q215,Q34

Hub bearing unit ball bearing is developed on the basis of standard angular contact ball bearings and tapered roller bearings, it will be two sets of bearings as one, with good assembly performance, can be omitted clearance adjustment, light weight, compact structure, large load capacity, for sealing bearings can be loaded in advance grease, omit the external hub seal and free from maintenance and other advantages, has been widely used in cars, There is also a trend of gradual expansion of applications in heavy-duty vehicles.1.

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In rolling bearings, the bearing ring is separated by a rolling unit (rolling element), and in slide guidance systems, the movable part slides on a static guide rail or shaft. Depending on the type of track system, the sliding layer is on movable or rigid components. The lubricating oil is embedded in the sliding layer to achieve lubrication. INA linear plain bearing is a linear positioning bearing with infinite stroke length.

Product Description:In the manufacturing of auto parts, many body structure parts and interior trim parts of different shapes can be processed with DX51D steel, which can be accurately formed in the stamping process, and maintain good surface quality, reduce subsequent dressing procedures, and improve production efficiency.Full cold galvanizing process:Chemical degreasing → hot water washing → water washing → electrolytic degreasing → water washing → acid washing → rust removal → water washing → electrogalvanizing process → water washing → passivation → hot water washing → drying → quality ins

The design of the roller and raceway contact line of all thrust cylindrical roller bearings is optimized to avoid the generation of edge effects.

Structure: THK linear bearing is mainly composed of bearing body, ball, cage, guide rail and other parts. The bearing body is usually made of high-strength alloy steel, and the cage is made of high-wear-resistant materials. The ball is to play a role in reducing friction and support.Working principle: The working principle of THK linear bearing is to make the ball slide smoothly on the guide rail through the friction of the bearing body and the guide rail, so as to achieve the linear movement of the workpiece or equipment.

Flange linear bearing is a common mechanical component, and its role is very important. Its main function is to support and guide two parts in relative motion, so that they can move smoothly with each other. At the same time, it can also withstand the load and torque from these moving parts to ensure the normal operation of the mechanical system.First of all, flanged linear bearings play a supporting role in mechanical equipment. It can withstand gravity and other loads perpendicular to the axis to ensure the stability and reliability of the parts to be supported.

Rotary bearing is an important mechanical component used to support and rotate shafts, which is usually used in industrial equipment, ships, automobiles and construction machinery. It is mainly composed of an inner and outer ring, a rolling body and a cage, and realizes the rotation and support of the shaft by rolling between the inner and outer rings of the rolling body. The design and selection of rotary bearing have an important influence on the stability, reliability and operation efficiency of the equipment.

Even if the production of the motor is strictly controlled during the manufacturing process, it is difficult to completely avoid the magnetic asymmetry of the armature and rotor. This asymmetry creates a voltage between the stators, which creates a current through the bearings, especially in AC motors. This current will cause corrosion pits, melting marks, electrical corrosion file lines and discoloration, wear and other damage on the bearing raceway and rolling surface.

High temperature resistant bearing: The material itself has resistance to high temperature 1200 ℃, and good self-lubrication, tem- perature between 100℃ to 800℃ should not produce temperature difference caused by the expansion.