ferris wheel bearing Wheel bearings History

Car wheel bearings are used in pairs over a maximum single row tapered roller or ball bearings. With the development of technology, the car has been widely used car wheel unit. The growing scope and use of hub bearing unit has now developed to the miniature ball bearings‍ third generation:

The first generation is a double row angular contact bearing components.

The second generation of the outer raceway for bearing a fixed flange bearing sleeve may simply be fixed with a nut on the axle. Makes the car maintenance becomes easy.

The third generation wheel hub bearing units are using a bearing unit and ABS anti-lock brake system compatible. Wheel hub unit designed to have the inner flange thin wall bearings‍ and an outer flange, the flange is bolted to the drive shaft, the outer flange of the bearing mounted together.

ferris wheel bearing Wheel bearing

Wheel bearings can withstand a large axial load, radial load and overturning moment, comprehensive load, set support, large bearing rotation, transmission, fixed and other functions in one particular structure. Wheel bearings

Single-row four point contact mobile crane bearing‍ ball

Single-row four point contact ball bearing turntable from the inner ring, outer ring, ball, isolated block of four major components, compact, light weight, ball four point contact with the circular rolling road, can withstand the axial force, radial forces. Rotary conveyors, welding operation machine, small cranes and excavators and other construction machinery can be selected. Double-row ball bearing turntable has three races, ball and isolation block can be directly discharged into the upper and lower worm gear speed reducer‍ raceway, according to the situation by force, arranged up and down two rows of balls of different diameters. This assembly is very convenient, carrying angle of both the upper and lower circular raceway is 90 °, can withstand large axial forces and tilting moments. When the axial force is greater than 0.1 times the radial force, roller must be specially designed. Double-row ball slewing bearing axial, radial dimension than the larger, structural tightening. Especially for applications that require above average diameter of tower cranes, truck cranes and other handling machinery. Single row cross roller wheel bearings, composed by two seat, compact, light weight, high manufacturing precision, Deep groove ball bearing‍ small assembly space for installation high precision roller 1: a cross arrangement, can withstand axial force, tipping moment and larger radial force, is widely on lifting the transport, engineering machinery and military products are used.

mobile crane bearing Light Series wheel bearings

Light slewing

Lightweight wheel bearings slewing ring has the same general structure, light weight, flexible rotation. Widely used in food machinery, filling ferris wheel bearing‍ machinery, environmental protection machinery and other fields.

HS Series mobile crane bearing‍‍

Single-row four point contact ball bearing turntable composed by two races, compact and circular raceway ball four point contact. Mainly used truck cranes, tower cranes, excavators, hammers, engineering vehicles, radar scanning equipment to withstand the overturning moment, wind power bearing‍ vertical axial force, the level of mechanical inclination force.

HJ Series wheel bearings

Single row cross roller wheel bearings, composed by two seat, compact structure, high manufacturing precision, small assembly space for installation high precision roller 1: a cross arrangement, can withstand the axial force, dumping turning torque and greater radial force, which is Taper roller bearings‍ widely on transport, engineering machinery and military products are used.                                                                                                                                    

ship loader bearing Wheel bearings code representation

Code of composition

Bearing Code by simply code and post code form.

Fundamental component code

Fundamental code is divided into slim ball bearing‍ three parts, the first part of the code structure types and drive types, central rolling diameter (for more than two rows of rolling element ship loader bearings for maximum rolling element diameter), heart weight rear rolling circle diameter (for two rows above the rolling bearing body weight for maximum heart rolling circle diameter)

1, structure type code according to the rules in Table 1.

01 four-point contact ball slewing bearing‍ bearings; 02 double Reducing ball bearings; 11 interspersed cylindrical roller bearings; 13 with three-row cylindrical roller bearings.

2, transmission type code according to the rules in Table 2.

0 Toothless; an outer involute cylindrical gear teeth smaller modulus; 2 involute cylindrical gear outer teeth larger modulus; 3 involute cylindrical gear teeth within a smaller modulus; 4 involute cylindrical gears inner teeth larger modulus.

3, the fundamental rules of the code compiled

Fundamental code layout, the structure type code and Taper roller bearings‍ transmission type code writing for the front, middle and rear with between. "" Separated.             

ferris wheel bearing Parameter Description

 Tolerances, clearance

Turntable bearing tolerances and clearance in line with JB / T 10471 "Rolling wheel bearings," wind turbines with turntable bearing tolerances slewing rings‍ and clearance in line with JB / T 10705 "Rolling wind turbine bearings."

If the customer dimensions, tolerances, clearance has other special requirements, can provide the appropriate product based on use conditions and user requirements.

Cage

Wheel bearings are used to keep the cage type has a whole shelf, segmented hold different types of aircraft structures or isolated cage and so on. Where the reali slim bearings‍ whole cage or segmented cage using the 20th ZL102 cast steel or aluminum alloy. Isolated cage polyamide 1010 resin, ZL102 cast aluminum or aluminum bronze QA110-3-1.5.                                                                                                                                                                        

mobile crane bearing Applied Materials

Rings and rolling elements with material

Under normal circumstances, turntable bearing rolling elements with the overall hardened carbon chromium bearing steel. Or GCr15SiMn GCr15 high speed bearing‍ steel grades for manufacturing; turntable bearing surface hardened steel ferrule is used when a user without special requirements, generally used in 50Mn steel, but sometimes in order to meet the needs of some special applications, the host can also be based on user-supplied specific conditions of use choose other brands Deep groove ball bearing‍ of surface hardened steel, such as 42CrMo, 5CrMnMo so on.

Cage materials

Turntable bearing retainer integral structural form, segmented, isolated block and so on. Where overall style and segmented cage with the 20th ZL102 cast steel or aluminum alloy. Isolated block polyamide 1010 resin, ZL102 cast aluminum and other manufacturing.

Seal materials

Mobile crane bearing‍ seals with oil and rubber material worm gear speed reducer‍ or materials used nitrile rubber material manufacturing....                                                    

ship loader bearing Turntable bearing material

Under normal circumstances, turntable bearing rings chosen 50Mn, but sometimes in order to meet the needs of a particular application host selection 42CrMo. Rolling element generally used GCr15SiMn. The holder of the type with integral type, sub-type, isolation marine crane bearing‍ block, such as different structural types. Monolithic or segmented retainer using 20 # steel or ZL102 cast aluminum. Isolated block holder 1010 polyamide resin, ZL102 QA110-3-1.5 cast aluminum or aluminum bronze. Seal material: oil and rubber, fluoro rubber, nitrile rubber oil.

Turntable bearing structures commonly used form of a single row, double row four point contact ball slewing bearings, double row angular contact thrust ball slewing bearing, cross roller and cross tapered roller wheel bearings, three-row cylindrical roller wheel ship loader bearing‍s, ball column hybrid high precision bearings‍ wheel bearings, such as different structural forms. According to the distribution of the above types of bearing parts and whether toothed gears are divided into different structure without gear, external gear type, and the tooth.