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China Good quality Steel Roll Bending Machine Cylinder Type Hydraulic Mechanic with Free Design Custom

Product Description

Steel Roll Bending Machine Cylinder Type Hydraulic Mechanic Carbon Steel Sheets —Basic info:

Model NO. EN source
Number of rollers 4
Roll length 2050mm
Diameter of the roller upper roller 190mm
Lower roller 160mm Side roller 180mm
Side roller 180mm
The smallest possible rolling diameter 300mm
Roll material Forged carbon steel with high tension, heat treatment, testing and identification
Roller resistance R = 620~750 N/mm²
The basic hardness of the roller Brinnel Brinell hardness = HB 180~230

·Note: all the machines of our company are customized. Please consult the salesman for specific parameters .

Steel Roll Bending Machine Cylinder Type Hydraulic Mechanic Carbon Steel Sheets—Product Description:

01Rolling Machine

The AUTO rolling machine is 1 of the important parts of the LNG production line.
The rolling machine adopts the four-roller structure with the upper roller as the main drive.
Its working principle is a combination of hydraulic and CNC rolling of sheet metal.

02Rolling machine Working principle

03Steel Roll Bending Machine Cylinder Type Hydraulic Mechanic Carbon Steel Sheets—Introduction to the work of the rolling machine 

The machine adopts the four-roller structure with the upper roller as the main drive.
The equipment has the function of pre-bending the end of the plate. The metal sheet can be loaded at 1 time, and the plate end pre-bending and the roll forming of the workpiece can be completed without turning.
The upper working roller of this machine is the main driving roller. The lower roller and both sides of the roller adopt hydraulic transmission. The lifting displacement is controlled by the computer, automatic leveling, screen display, and the tilting and resetting of the turning bearing body to adopt hydraulic transmission. The tail of the upper roller Equipped with a balance mechanism to facilitate the unloading of the rolled workpiece and cylinder. Equipped with a mobile independent operating table, which can be moved and operated at any time, and the machine is equipped with a safety interlock device. The machine has a high technical level, complete functions, high precision, and easy operation. It is the most ideal model for rolling round, arc, and conical workpieces in industries such as energy, transportation, petroleum, chemical industry, boilers, shipbuilding, hydropower, and metal structures.

04Steel Roll Bending Machine Cylinder Type Hydraulic Mechanic Carbon Steel Sheets—Rolling Machine parameter

  rolling machine parameters This machine is customized, the parameters are for reference only
Roller Number of rollers 4
Roll length 2050mm
The diameter of the roller upper roller 190mm
Lower roller 180mm
Side roller 180mm
The smallest possible rolling diameter 30mm
Roll material Forged carbon steel with high tension, heat treatment, testing and identification
Roller resistance R = 620~750 N/mm²
The basic hardness of the roller Brinnel Brinell hardness = HB 180~230
Roll hardness treatment induction hardening, up to 45~62HRC
Drive Drive roller 2 (upper and lower nip roller)
Drive system 2 independent hydraulic motors
Maximum winding speed 5m/min (efficient technology)
Circumferential speed compensation is automatically completed by the hydraulic system without any power loss
Electrical Installed power HP10 (8KW) energy-saving technology
Power supply 380V, 3 phase, 50HZ
Side roller position 4 digits on the display screen, with an accuracy of 0.1mm
The position of the lower roller is displayed digitally on the display screen with an accuracy of 0.1mm
Move Roller guidance “Planetary guidance” (no friction, anti-oxidation, minimal lubrication), hydraulic pressure, overload protection system, unique patented design
The movement of the roller is hydraulic, through the large-diameter hydraulic cylinder with a chrome-plated layer
The clamping pressure of the plate can be preset by the operator on the control panel according to the thickness of the plate. When working, it can be automatically selecte by CNC and the pressure change can be monitored by CNC in real time.
CNC The numerical control displays the position of the side rollers and memorizes them. Press the “Start” button through the keyboard, and the specific side rollers will automatically return to the previous memory position. (Different materials change the diameter and manually correct them to improve the result). With semi-automatic CNC, the operator must “start” each additional memory movement and move all the memory movements through the joystick. The rotation of the roller must always be manually triggered by the joystick.
The numerical control determination can be used in manual mode, with higher accuracy than any manually controlled machine.

The products shown above are only the details of some models and products in this machine. We sell all the equipment in the solar water heater production line. If you are interested, we look forward to your inquiry.

Choosing the Right Ball Bearing for Your Application

When choosing a Ball Bearing, there are several things to consider. These factors include: the size, lubricant type, presence of corrosive agents, stray electrical currents, and more. It can be challenging to choose the right type, size, and type of ball bearing for your application. You should also carefully calculate the loads to determine the right size. Here are some tips for choosing the right Ball Bearing for your application.


The single-row ball bearing is 1 of the most popular types of bearings. The inner and outer ring are designed with raceway grooves that are shaped slightly larger than the balls. This type of bearing has a low torque and can handle high-speed applications with minimal power loss. The radial dimensions of single-row ball bearings also vary, so it is possible to find 1 that fits your specific application. Besides the above-mentioned advantages, single-row ball bearings are also available with varying grease levels and are widely applicable to applications where the space is limited.
Single-row ball bearings are also called angular-contact ball bearings. Because of their single-row design, they are not separable and can accommodate a high-speed, heavy-duty application. Single-row angular-contact ball bearings can only handle axial load in 1 direction, and they must be installed in pairs for pure radial loads. Single-row ball bearings are a popular type of rolling bearings and can be used for a wide range of applications.


The self-aligning ball bearing was invented by Sven Wingquist, a plant engineer for a textile company in Sweden. While he was responsible for making production as efficient as possible, he soon realized that the machinery he had in place wasn’t working as efficiently as it could. Although ball bearings are great for reducing friction, they were not flexible enough to compensate for misalignments in the machine.
Self-aligning ball bearings have 2 rows of balls and a common sphered raceway. The inner ring is curved and combines the 2 rows of balls into 1 cage. These bearings can tolerate shaft misalignment and compensate for static angular defects. They can be used in simple woodworking machinery, ventilators, and conveying equipment. They are often the preferred choice for applications where shaft alignment is an issue.


A Ceramic ball bearing is a type of high-performance bearing that is available in both full-ceramic and hybrid forms. The main differences between ceramic and steel ball bearings are their construction, lubrication, and mobility. High-quality ceramic ball bearings are durable, and they are ideal for corrosive and high-temperature applications. The material used to create these bearings helps prevent electrolytic corrosion. They are also ideal for reducing the friction and lubrication requirements.
Ceramic balls are harder and less brittle than steel balls, which gives them a higher degree of rigidity. Ceramics also have a higher hardness, with a hardness of Rc75-80 compared to Rc58-64 for steel balls. Their high compressive strength is approximately 5 to 7 times greater than steel. In addition, they have a very low coefficient of friction, which allows them to spin at higher speeds and with less friction. This increases their lifespan and durability, and decreases the energy needed to turn cranks.


Unlike traditional bearings, steel balls have a relatively uniform hardness. Carbon steel, for instance, is 2.1% carbon by weight. According to the American Iron and Steel Institute, copper content must be no more than 0.40% and manganese content should not be more than 1.65 g/cm3. After carbonizing, steel balls undergo a process called sizing, which improves their roundness geometry and hardness.
The main differences between steel ball bearings and ceramic ball bearings can be traced to their different materials. Ceramic balls are made from zirconium dioxide or silicon nitride. Silicon nitride is harder than steel and resists shocks. The result is increased speed and longer service life. Polyoxymethylene acetal (PMMA) bearing balls are known for their stiffness, strength, and tolerance, but are not as common as steel ball bearings.


The most popular types of plastic ball bearings are made of polypropylene or PTFE. These bearings are used in applications requiring higher chemical resistance. Polypropylene is a structural polymer that offers excellent physical and chemical properties, including excellent resistance to organic solvents and degreasing agents. Its lightweight, low moisture absorption rate, and good heat resistance make it an excellent choice for high-temperature applications. However, plastic bearings are not without their drawbacks, especially when operating at very high temperatures or under heavy loads.
Compared to metal bearings, plastic ball-bearings do not require lubrication. They also are highly corrosion-resistant, making them an excellent choice for wash-down applications. They are also post-, autoclave-, and gamma sterilizable. Many conventional steel ball-bearings cannot handle the high temperatures of food processing or swimming pools. In addition to high temperature applications, plastic ball bearings are resistant to chemicals, including chlorine.


Plastic sliding bearings are molded bearings made of engineering plastic. With self-lubricating modification technology, these bearings can be produced by injection molding of plastic beads. They are widely used in various industries such as office equipment, fitness and automotive equipment. In addition to plastic bearings, glass balls are used in a variety of other applications, including medical equipment. Glass ball bearings have excellent corrosion resistance, excellent mechanical properties, and are electrically insulators.
Plastic ball bearings are made of all-plastic races and cages. These bearings are suitable for applications that are exposed to acids and alkalis. Because they are cheaper than glass balls, plastic ball bearings are popular in chemical-exposed environments. Stainless steel balls are also resistant to heat and corrosion. But the main disadvantage of plastic ball bearings is that they are not as strong as glass balls. So, if weight and noise is your main concern, consider using plastic balls instead.


The global miniature ball bearing market is expected to reach US$ 2.39 Billion by 2027, at a CAGR of 7.2%. Growth in the region is attributed to technological advancement and government initiatives. Countries such as India and China are attracting FDIs and emphasizing the establishment of a global manufacturing hub. This is boosting the market for miniature ball bearings. The miniscule ball bearings are manufactured in small quantities and are very small.
Some manufacturers produce miniature ball bearings in different materials and designs. Chrome steel is the most popular material for miniature ball bearings because of its high load capacity, low noise properties, and lower cost. But the cost of stainless steel miniature bearings is low, since the amount of steel used is minimal. Stainless steel miniature bearings are the smallest in size. Therefore, you can choose stainless steel mini ball bearings for high-speed applications.


Angular-contact ball bearings have 3 components: a cage, inner ring, and balls. Angular-contact ball bearings can support high axial and radial loads. Various design and manufacturing attributes make angular-contact ball bearings suitable for a variety of applications. Some features of this bearing type include a special lubricant, different cage materials, and different coatings.
The size of an angular-contact ball bearing is determined by the design units: outer ring width, axial load, and radial load. Depending on the type of application, an angular-contact ball bearing may be manufactured in double-row, triple-row, or quadruple-row configurations. Angular contact ball bearings can be classified according to their design units, which range from metric to imperial. A higher ABEC number means tighter tolerances. To determine the tolerance equivalent of a particular bearing, consult a standard Angular-contact ball bearing table.
Angular-contact ball bearings feature high and low-shoulder configurations. They have two-dimensional races that accommodate axial and radial loads. They are available in self-retaining units with solid inner and outer rings, and ball and cage assemblies. Cages made of cast and wrought brass are the most popular, but lightweight phenolic cages are also available. The latter is a better choice because it doesn’t absorb oil and has lower rolling friction.


When it comes to the construction of a ball bearing, high-quality raw materials are a crucial component. These materials not only affect the overall quality of a ball bearing, but also influence the cost. That’s why you should pay close attention to raw material quality. In addition to that, raw materials should be tested several times before the manufacturing process to ensure quality. Read on for some information about the different types of materials used to make ball bearings.
Steel is the most common material for ball bearings. Most ball bearings contain stainless steel balls, which are remarkably corrosion-resistant. They are also resistant to saltwater and alkalis. However, stainless steel balls are heavier than plastic ones, and they are also magnetic, which may be a drawback in some applications. If you’re looking for a metal-free option, glass balls are the way to go. They’re sturdy, lightweight, and resistant to a wide range of chemicals.

China Good quality Steel Roll Bending Machine Cylinder Type Hydraulic Mechanic     with Free Design CustomChina Good quality Steel Roll Bending Machine Cylinder Type Hydraulic Mechanic     with Free Design Custom

China factory Hydraulic Seamless Steel Cylinder Hot Spinning Necking-in Machine with Hot selling

Product Description

HFD180 Hot -Spinning Machine(Diameter 89-180mm)

HFD180 Hot-Spinning Machine including: Intermediate Frequency Heating Equipment, Thermal-Spinning Forming Machine, Bottom Pushing Machine, etc. Total power for Complete Equipment is about 200Kw, installation area is 13000 x 8000mm, specific parameter as following:

Intermediate Frequency Heating Equipment Model D180-110Kw
A.Main Technical Parameter:

Rated Power(Kw) Rated Frequency(Hz) Power Frequency Voltage(V)
110 2500 3-380V

B.Equipment Performance and Technical Requirement:

Rated Power(Kw) Max Power(Kw) Rated Frequency(Hz) Power Frequency Voltage(V) Output Voltage(V) Matching Transformer(KVA)
110 250 2500 3N-380 750 200

1-2, Master Control Broad:
Master Control Broad uses imported integrated circuit. Rectifier triggers do not need any adjustment, it has phase sequence to adaptive electric circuit with high reliability. Inverter adapts sweeping-frequency and zero pressure start-up, it has the function of heavy load starting. Frequency tracking circuit using the average sampling programs to improve anti-jamming capability of the inverter. Inverter circuit also added inverter angle regulating circuit, which can automatically adjust load impedance matching.

1-3, Protection and Control:
Master Control Broad internal function includes: Rectifier phase shifting trigger, Phase self-adaption, Inverter trigger, Reverse lead angle lock, Inverter repeat start, Over-current protection, Over-voltage protection, Open-phase protection, Hydraulic under-voltage protection, Control panel under-voltage protection,etc.

1-4, The Standard of Frequency Converter:
ZBK46001-87    Semiconductor Frequency Converter for Induction Heating
JB/DQ6367-88  Semiconductor Frequency Converter for Intermediate Frequency Induction Heating, Product Quality Analysis and so on
JB4086.85         Technical Condition of Electric Control Equipment for Intermediate Frequency Induction Heating
JB/T4280-93      Intermediate Frequency Coreless Induction Furnace

1-5, Water Tank:
Frequency Converter and Capacitor all adopt open return system, it’s better for observation. Cabinet body with water pressure protection device.

1-6, External Power Cord:
External Frequency Power Cord enter from the top of Intermediate frequency power supply cabinet.

1-7, Power Regulating:
There is Power Regulating Knob on the panel of Intermediate Frequency Power Supply Cabinet, the output power of frequency converter is adjustable.

1-8, Main Circuit Connection:
Main circuits of the power supply cabinet are made by copper.

1-9, Color of Cabinet:
Computer spray gray.

C.Cooling Water System

3-1, Technique Data:
Cooling water inlet temperature: 5-35ºC
Cooling water outlet temperature:≤55ºC
Cooling water pressure:0.3-0.4Mpa
Water supply: 0.57135P(P is rated power) (M³/h)
Gradient of water return pipe:I-0.01

3-2, Quality Demand of Cooling Water:
Total hardness: ≤10 degree
Available capacity of cooling water pond cannot less than 2~3 times of supplying water.

D. Supply Scope of Complete Equipment
4-1, Frequency Converter                  1 set
4-2,φ180 Heater                           1 set
4-3, Worktable                             1 set 
4-4, Closed Cooling Tower                  1 set

E. Installation, Commissioning and Acceptance
5-1, Customer is in charge of the building projects, such as design of workshop, pond excavation,etc. Under the technical guidance of our company, customer can finish the installation of complete sets of equipment,i.e. taking and fixing the equipment in place, installing cooling water pipeline, installing connection cable, connecting power frequency cable.(Installation materials should be prepared by customer)

F. Technical Data Provided
6-1, Foundation Drawing for Equipment Installation, Drawing for Cooling Water Pipeline(Customer need to provide layout dimension drawing of workshop)
6-2, Operation Instruction for KGPS Thyristor Frequency Converter(Provided by random)
6-3, Equipment Inspection Certificate and Factory Packing List

Hot Spinning Machine Technical Parameters
A.Parameters for Cylinder
1-1, Cylinder Material: 34CrMo4 (35 CrMo),37Mn,30 CrMo,45#
1-2, Specification of Cylinder:
        b.Length: 400–1050mm
        c.Thickness: 5–12mm
        d.Weight: <80kg

B. Performance for Hot Spinning Machine
2.1, Production rate: <80s/bottle(including the time of input and output material)
2.2, Equipment total power: around 60KW
       Main motor: 30KW–6P
2.3, Flap rotation torque: 20KN.m
2.4, Hydraulic system nominal operating pressure:5–8Mpa (Low pressure), 6-15Mpa (High pressure)
2.5, Speed of Mainshaft: 400~450 R/M
2.6, Two optional types for auxiliary heating: Automatic or Manual

C. Structure of Hot Spinning Machine
3.1, Hot spinning machine main engine includes main engine chassis, main shaft, jack catch clamping device, grip cylinder, oil dispenser.
3.2, Panel turnover mechanism includes turning plate, turning plate oil cylinder, turning plate bearing(single-boom) and adjusting mechanism, turning plate centre lower than 20mm of main shaft centre, cushion block.
3.3, Equipment includes feeding mechanism, discharge mechanism, air cylinder, removable and adjustable feed frame.
3.4, Steel pipe positioning mode: prelocalization
3.5, Hydraulic system includes high-low pressure pump, control valve and connecting pipeline.
3.6, One set electric control cabinet, 1 set electric control box.
3.7, Two types for CZPT lifting device: Automatic or Manual

Main components for electric control box:

Name Manufacturer
Main bearing of the spindle HangZhou Bearing Factory(China)
PLC Mitsubishi(Japan)
Motor control ac contactor Schneider(Electric Company)
Air switch, circuit breaker Schneider(Electric Company)
Bottom switch Schneider(Electric Company)
Intermediate relay Omron
Programming controller  Mitsubishi(Japan)
Touch screen TAIDA
Encoder Koyo

D100 Bottom Pushing Machine
A.Parameter for cylinder:
1.1, Material for cylinder: 34CrMo4 (35 CrMo), 37Mn, 30 CrMo,45#
1.2, Specification of cylinder:
       b.Length: 400–1050mm
       c.Thickness: 5–12mm
       d.Weight: <80kg

B. Performance for Bottom Pushing Machine
2.1, Production rate: <80s/bottle(including the time of input and output material)
2.2, Equipment total power: around 30KW

C. Structure of Bottom Pushing Machine
3.1, Bottom Pushing Machine consists of main engine, hydraulic system, feeding and discharging mechanism.
3.2, Two types for Bottom Pushing Device: Automatic or Manual
3.3, A set of Deslagging Device

CNC Roller type Spinning Machine
Processing Diameter: 406~920mm

Machine Model THG622 THG660 THG720 THG920
Processing Diamater 406-622mm 406-660mm 559-720mm 559-920mm
Processing Length 5500-12500mm 5500-12500mm 5500-12500mm 5500-12500mm
Processing Thickness 10-30mm 10-30mm 10-30mm 10-30mm
Ctentral Heigh 1300mm 1300mm 1300mm 1300mm
Main Engine Power 200Kw 250Kw 280Kw 355Kw
Rolling Wheel Swing Angle 90 degree 90 degree 90 degree 90 degree
Control Methods CNC CNC CNC CNC
Machine Dimension L*W*H 23000*3200*2300mm 23000*3200*2300mm 31000*3200*2500mm 31000*3200*3300mm

CNC Roller type Spinning Machine
Processing Diameter: 219~406mm

Machine Model THG325 THG406-IV
Processing Diamater 219-325mm 325mm-406mm
Processing Length 800-2000mm 800-2000mm
Processing Thickness 5-15mm 5-18mm
Central Height 1100mm 1200mm
Main Engine Power 90Kw 144Kw
Rolling Wheel Swing Angle 100 degree 100 degree
Spindle Speed 700rpm 700rpm
Control Methods CNC CNC
Machine Dimension L*W*H 16000*2000*1420mm 18000*2000*1600mm

Template type Spinning Machine
Processing Diameter: 200~406mm

Machine Model THM232 THM325 THM406
Processing Diamater 200-232mm 219-325mm 325-406mm
Processing Length 700-1700mm 800-2000mm 800-2000mm
Processing Thickness 3-15mm 5-15mm 5-18mm
Central Height 1000mm 1100mm 1200mm
Main Engine Power 37Kw 90Kw 110Kw
Template Retroflexion Angle 90 degree 90 degree 90 degree
Template Center Height Adjust +-20mm +-30mm +-30mm
Control Method PLC PLC PLC
Machine Dimension L*W*H 16000*2000*1300mm 16000*2000*1420mm 18000*2000*1600mm

Double Roller Series CNC Playback General Spinning Flow Forming Machine
Processing Diameter: 690~3000mm

Model Max Rough Diamater(mm) Height from Spindle to Tailstock(mm) Longitudinal Thrust(KN) Radial Trust(KN)
350PCNC 690 1100 24 24
450PCNC 890 1250 65 65
800PCNC 1590 1250 65 65
700PCNC 1400 2300 150 150
900PCNC 1800 2500 200 200
1200PCNC 2400 2500 300 300
1500PCNC 3000 3500 400 400

Triple Roller Type CNC Power Spinning Flow Forming Machine

Name Unit QX63-10CNC QX63-20CNC QX63-30CNC
Max Rough Diameter mm 400 600 700
Min Rough Diameter mm 60 60 100
Max length of work piece(positive rotation) mm 1200 2000 2500
Max length of work piece(contrarotation) mm 2200  3000 4000
Double center distance mm 4700 6000 6500
Spindle Speed rpm 30-600 30-600 30-500
Main engine power Kw 37/40 100/110 120
Tail force KN 50 75 150
Spinning roller base longitudinal stroke mm 1500 2000/2500 2500/3000
Spinning roller base longitudinal thrust KN 170 250/300 400/450
Spinning roller base horizontal stroke mm 170 270 300
Spinning roller base horizontal thrust KN 3*100 3*200 3*300

Concave Bottom Stamping Machine

Machine Model 250CD 400CD 500CD
Forming Force 2500KN 4000KN 5000KN
Processing Diameter 219-232mm 219-406mm 219-406mm
Processing Length 1700mm 2000mm 2000mm
Processing Thickness 18mm 18mm 18mm
Central Height 650mm 800mm 800mm
Control Methods PLC PLC PLC

We are professional manufacturer of lpg tank production line. We need to know following information to quote you correct machineries:
Q: What size of LNG cylinder your machine can produce?
A: 15kgs and 50kgs LNG cylinder and other size according customers’ requirement.
Q: Can you design machines according LNG cylinder technical drawing?
A: Sure, please send your technical drawing to us.
Q: What are the benefits to choose your machines?
A: Our machines are strong and reliable for long term industrial manufacturing

To enable me give you correct proposal for correct machines, pls tell me following details:
1.Can you send me the technical drawing of the cylinders you want to make?
2.What size of cylinder you want to produce?(15kg, 50kg)
3.What kind of gas will be used inside cylinder?  Nitrogen, Oxygen, etc..?
4. What temperature?
5.What diameter and thickness of the cylinder you want to make?
6.What length and material of cylinder you want to make,stainless steel or carbon steel?
7.Are you new in this area or you already have some machines in the workshop?
8.Capacity you require, i.e. how many pieces and sizes you want to make per day?  

An Overview of Worm Shafts and Gears

This article provides an overview of worm shafts and gears, including the type of toothing and deflection they experience. Other topics covered include the use of aluminum versus bronze worm shafts, calculating worm shaft deflection and lubrication. A thorough understanding of these issues will help you to design better gearboxes and other worm gear mechanisms. For further information, please visit the related websites. We also hope that you will find this article informative.
worm shaft

Double throat worm gears

The pitch diameter of a worm and the pitch of its worm wheel must be equal. The 2 types of worm gears have the same pitch diameter, but the difference lies in their axial and circular pitches. The pitch diameter is the distance between the worm’s teeth along its axis and the pitch diameter of the larger gear. Worms are made with left-handed or right-handed threads. The lead of the worm is the distance a point on the thread travels during 1 revolution of the worm gear. The backlash measurement should be made in a few different places on the gear wheel, as a large amount of backlash implies tooth spacing.
A double-throat worm gear is designed for high-load applications. It provides the tightest connection between worm and gear. It is crucial to mount a worm gear assembly correctly. The keyway design requires several points of contact, which block shaft rotation and help transfer torque to the gear. After determining the location of the keyway, a hole is drilled into the hub, which is then screwed into the gear.
The dual-threaded design of worm gears allows them to withstand heavy loads without slipping or tearing out of the worm. A double-throat worm gear provides the tightest connection between worm and gear, and is therefore ideal for hoisting applications. The self-locking nature of the worm gear is another advantage. If the worm gears are designed well, they are excellent for reducing speeds, as they are self-locking.
When choosing a worm, the number of threads that a worm has is critical. Thread starts determine the reduction ratio of a pair, so the higher the threads, the greater the ratio. The same is true for the worm helix angles, which can be one, two, or 3 threads long. This varies between a single thread and a double-throat worm gear, and it is crucial to consider the helix angle when selecting a worm.
Double-throat worm gears differ in their profile from the actual gear. Double-throat worm gears are especially useful in applications where noise is an issue. In addition to their low noise, worm gears can absorb shock loads. A double-throat worm gear is also a popular choice for many different types of applications. These gears are also commonly used for hoisting equipment. Its tooth profile is different from that of the actual gear.
worm shaft

Bronze or aluminum worm shafts

When selecting a worm, a few things should be kept in mind. The material of the shaft should be either bronze or aluminum. The worm itself is the primary component, but there are also addendum gears that are available. The total number of teeth on both the worm and the addendum gear should be greater than 40. The axial pitch of the worm needs to match the circular pitch of the larger gear.
The most common material used for worm gears is bronze because of its desirable mechanical properties. Bronze is a broad term referring to various copper alloys, including copper-nickel and copper-aluminum. Bronze is most commonly created by alloying copper with tin and aluminum. In some cases, this combination creates brass, which is a similar metal to bronze. The latter is less expensive and suitable for light loads.
There are many benefits to bronze worm gears. They are strong and durable, and they offer excellent wear-resistance. In contrast to steel worms, bronze worm gears are quieter than their counterparts. They also require no lubrication and are corrosion-resistant. Bronze worms are popular with small, light-weight machines, as they are easy to maintain. You can read more about worm gears in CZPT’s CZPT.
Although bronze or aluminum worm shafts are the most common, both materials are equally suitable for a variety of applications. A bronze shaft is often called bronze but may actually be brass. Historically, worm gears were made of SAE 65 gear bronze. However, newer materials have been introduced. SAE 65 gear bronze (UNS C90700) remains the preferred material. For high-volume applications, the material savings can be considerable.
Both types of worms are essentially the same in size and shape, but the lead on the left and right tooth surfaces can vary. This allows for precise adjustment of the backlash on a worm without changing the center distance between the worm gear. The different sizes of worms also make them easier to manufacture and maintain. But if you want an especially small worm for an industrial application, you should consider bronze or aluminum.

Calculation of worm shaft deflection

The centre-line distance of a worm gear and the number of worm teeth play a crucial role in the deflection of the rotor. These parameters should be entered into the tool in the same units as the main calculation. The selected variant is then transferred to the main calculation. The deflection of the worm gear can be calculated from the angle at which the worm teeth shrink. The following calculation is helpful for designing a worm gear.
Worm gears are widely used in industrial applications due to their high transmittable torques and large gear ratios. Their hard/soft material combination makes them ideally suited for a wide range of applications. The worm shaft is typically made of case-hardened steel, and the worm wheel is fabricated from a copper-tin-bronze alloy. In most cases, the wheel is the area of contact with the gear. Worm gears also have a low deflection, as high shaft deflection can affect the transmission accuracy and increase wear.
Another method for determining worm shaft deflection is to use the tooth-dependent bending stiffness of a worm gear’s toothing. By calculating the stiffness of the individual sections of a worm shaft, the stiffness of the entire worm can be determined. The approximate tooth area is shown in figure 5.
Another way to calculate worm shaft deflection is by using the FEM method. The simulation tool uses an analytical model of the worm gear shaft to determine the deflection of the worm. It is based on a two-dimensional model, which is more suitable for simulation. Then, you need to input the worm gear’s pitch angle and the toothing to calculate the maximum deflection.
worm shaft

Lubrication of worm shafts

In order to protect the gears, worm drives require lubricants that offer excellent anti-wear protection, high oxidation resistance, and low friction. While mineral oil lubricants are widely used, synthetic base oils have better performance characteristics and lower operating temperatures. The Arrhenius Rate Rule states that chemical reactions double every 10 degrees C. Synthetic lubricants are the best choice for these applications.
Synthetics and compounded mineral oils are the most popular lubricants for worm gears. These oils are formulated with mineral basestock and 4 to 6 percent synthetic fatty acid. Surface-active additives give compounded gear oils outstanding lubricity and prevent sliding wear. These oils are suited for high-speed applications, including worm gears. However, synthetic oil has the disadvantage of being incompatible with polycarbonate and some paints.
Synthetic lubricants are expensive, but they can increase worm gear efficiency and operating life. Synthetic lubricants typically fall into 2 categories: PAO synthetic oils and EP synthetic oils. The latter has a higher viscosity index and can be used at a range of temperatures. Synthetic lubricants often contain anti-wear additives and EP (anti-wear).
Worm gears are frequently mounted over or under the gearbox. The proper lubrication is essential to ensure the correct mounting and operation. Oftentimes, inadequate lubrication can cause the unit to fail sooner than expected. Because of this, a technician may not make a connection between the lack of lube and the failure of the unit. It is important to follow the manufacturer’s recommendations and use high-quality lubricant for your gearbox.
Worm drives reduce backlash by minimizing the play between gear teeth. Backlash can cause damage if unbalanced forces are introduced. Worm drives are lightweight and durable because they have minimal moving parts. In addition, worm drives are low-noise and vibration. In addition, their sliding motion scrapes away excess lubricant. The constant sliding action generates a high amount of heat, which is why superior lubrication is critical.
Oils with a high film strength and excellent adhesion are ideal for lubrication of worm gears. Some of these oils contain sulfur, which can etch a bronze gear. In order to avoid this, it is imperative to use a lubricant that has high film strength and prevents asperities from welding. The ideal lubricant for worm gears is 1 that provides excellent film strength and does not contain sulfur.

China factory Hydraulic Seamless Steel Cylinder Hot Spinning Necking-in Machine     with Hot sellingChina factory Hydraulic Seamless Steel Cylinder Hot Spinning Necking-in Machine     with Hot selling