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Conical Bevel Helical Steel Gear Wheel Large Modulus Steel 45#

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Conical Bevel Helical Steel Gear Wheel Large Modulus Steel 45#

Country/Region china
City & Province shijiazhuang hebei
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Product Details

Conical Bevel Large Modulus Steel 45# Cast Helical Gear Wheel

 
 

Overview

Model
TypeRound/Worm gear/bevel/Non-round /Rac Plastic stainless steel
Tooth shapespur/bevel/curve/double gear
Production type

Casting/cutting/rolling/sintered gear

Wrappedwooden box

Application scope
 

textile, agriculture, mining, food, oil and other transmission machinery
Hardnesshardening
MOQ

≥100 pieces

 

product introduce

NameConical Bevel Large Modulus Steel 45# Cast Helical Gear Wheel
Machining module0.2-10
Materials:stee45#l, 40CR, Easy car iron (1214#), brass, tin bronze, POM(Sisteel), PVD, PVDFl, imported nylon, stainless steel 303#, stainless steel 304#, aluminum 606#, aluminum 6063#

Surface treatment: blackening,

high frequency, carburizing and quenching, surface nitriding, etc

Processing equipment:CNC lathes, automatic lathes, general lathes, hobbing machine, gear shaper, gear milling machine, shaving machine, milling machine, grinding machine, wire cutting, etc
Processing technology hobbing, gear, shaving, milling teeth
  

 

common spur gear specifications

Common spur gear specifications
Modulus1M1.5M2M2.5M3M4M5M
tooth thickness10mm15-18mm20mm25mm30mm35-40mm40-50mm
inner holeThe blank hole
setting methodOuter diameter = module * (Number of teeth -2)

 
 

The basic introduction of gears

Gear; A mechanical component with teeth on the rim that can continuously engage to transfer motion and power is a mechanical component with teeth that can mesh with each other. The diameter of the big gear is twice that of the small one. If the big gear does not move, how many times does the pinion revolve around the big one? Conversely, if the pinion does not move, how many times does the big pinion revolve around the pinion? The big gear does not move, the small gear along the big gear revolution one week, the small gear rotation one week; When the pinion does not move, the big gear rotates once around the pinion, and the big gear rotates once and a half, i.e., once at 240°, once and a half at 360°, two times at 480°, and three times at 720°.
Gear is a mechanical part with teeth that can mesh with each other. It is widely used in mechanical transmission and the whole mechanical field. Modern gear technology has reached: gear modulus 0.004 ~ 100 mm; Gear diameter from 1 mm to 150 meters; Transmission power up to 100,000 kilowatts; Speed up to hundreds of thousands of RPM; The highest circumferential speed is 300 m/s.

 

Role of gears

Gear is a mechanical part with teeth that can mesh with each other. The application of gear in transmission appeared very early. At the end of the 19th century, the development of the principle of tooth cutting method and the use of this principle of tooth cutting special machine tools and tools have appeared, with the development of production, the smoothness of gear operation by attention. The role of gear is to transfer the rotation of one shaft to another shaft, but also to achieve deceleration, increase, change and reverse action.

 

Material is introduced

The steel commonly used in the manufacture of gears is tempered steel, hardened steel, carburized hardened steel and nitriding steel. Cast steel has a slightly lower strength than forged steel and is often used for larger gears; Gray cast iron has poor mechanical properties and can be used in light load open gear transmission. Nodular cast iron can partly replace steel in making gears; Plastic gear is mostly used for light load and low noise requirements, and the gear with good thermal conductivity of steel gear.
In the future, gear is developing towards the direction of heavy load, high speed, high precision and high efficiency, and strive for small size, light weight, long life and economic reliability.
The development of gear theory and manufacturing technology will further study the mechanism of gear tooth damage, which is the basis for establishing a reliable strength calculation method, is the theoretical basis for improving the bearing capacity of gear and prolonging the life of gear.A new tooth profile represented by arc tooth profile is developed. Research new gear materials and new technology of gear manufacturing; In order to improve the smoothness of gear operation and increase the contact area of gear teeth at full load, the gear bearing capacity is improved by studying the elastic deformation, manufacturing and installation errors and the distribution of temperature field.
Friction, lubrication theory and lubrication technology are the basic work in gear research. The study of elastic fluid dynamic pressure lubrication theory, the popularization of synthetic lubricating oil and the proper addition of extreme pressure additives in oil can not only improve the bearing capacity of tooth surface, but also improve the transmission efficiency.

 

Processing method

Involute gear processing methods have two categories, one is the copying method, with a forming cutter milling gear groove, is "imitation shape". The other is the generativity method.
(1) Hobbing machine hobbing: can process 8 module below the helical teeth
(2) Milling machine teeth: can process straight rack
(3) Slotting machine gear: can process internal teeth
(4) Cold beating machine teeth: no chip processing
(5) Gear planer gear: can process 16 module gear
(6) Precision casting teeth: cheap pinion can be processed in large quantities
(7) Gear grinding machine: can process the gear on the precision master machine
 

 
 
 

 
 
















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