Tag Archives: helical gear reducer

China supplier T Series 90 Degree Right Angle Helical Cone Spiral Bevel Speed Reducer Gearbox for Screw Jack Mechanical Jack Screw Lift Mechanism Right Angle Gear Jack wheel and axle

Product Description

T Series 90 Degree Right Angle Helical Cone Spiral Bevel Speed Reducer Gearbox for Screw Jack Mechanical Jack Screw Lift Mechanism Right Angle Gear Jack

T Series Spiral Bevel Gear Steering Device

1.T series spiral bevel redirecor with various types are standardized,all ratios 1:1  1.5:1  2:1  2.5:1  3:1  4:1 and  5:1 are actual ones.Average efficiency is 98%.
2.There are 1 input shaft,two input shafts,unilateral output shaft and double side output shaft.
3.Spiral bevel gear can rotate in both directions and transmit smoothly, low noisemlight vibration, high performance.
4.If ratio is not 1:1,if input speed on single-extendalbe shaft,output speed will be reduced;
    if input speed on double- extendable shaft output speed will be reduced.

Our Factory:

1. Shell: made of high rigidity fc-25 cast iron;
2. Gear: high purity alloy steel 20crmnt is used for quenching and tempering, carburizing, quenching and grinding;
3. Spindle: high purity alloy steel 40Cr quenching and tempering processing, with high hanging load capacity.
4. Bearing: equipped with tapered roller bearing with heavy load capacity;
5. Oil seal: imported double lip oil seal, with the ability of dust and oil leakage.
Product lubrication:
The use of proper lubricating oil for t spiral bevel gear commutator can give full play to the efficiency of the steering gear and improve its service life.
1. The initial wear period is 2 weeks or 100-200 hours. There may be a small amount of metal wear particles between them. Please clean the interior and replace it with new lubricating oil;
2. In case of long-term use, change the lubricating oil every half a year or 1000-2000 hours.
Technical parameters of T spiral bevel gear commutator:
It can be equipped with single horizontal axis, double horizontal axis, single vertical axis and double vertical axis 1:5, 1:5, 1:1, 1:5, 1:5, 1:1

Related products:

Application:

Company Profile:

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car
Function: Distribution Power, Clutch, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase
Layout: Coaxial
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Three-Step
Samples:
US$ 9999/Piece
1 Piece(Min.Order)

|
Request Sample

screwshaft

Screw Shaft Types

If you’re looking for a screw shaft, but aren’t sure which type to buy, you’re in luck. In this article, we’ll talk about the different types, including Threaded shank, Round head, and Machined. Once you’ve read it, you’ll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find one to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.

Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the two ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These two features ensure that the ball and the nut meet at two points. You’ll be amazed by the results of the work of these ball screw nuts.
screwshaft

Threaded shank

Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress two pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as one with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is eight mm in diameter but has a thread pitch of one mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to one mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
screwshaft

Self-locking mechanism

A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.

China supplier T Series 90 Degree Right Angle Helical Cone Spiral Bevel Speed Reducer Gearbox for Screw Jack Mechanical Jack Screw Lift Mechanism Right Angle Gear Jack   wheel and axleChina supplier T Series 90 Degree Right Angle Helical Cone Spiral Bevel Speed Reducer Gearbox for Screw Jack Mechanical Jack Screw Lift Mechanism Right Angle Gear Jack   wheel and axle
editor by CX 2023-11-07

China factory 90mm Round Flange High Precision Helical Gear AE Series Planetary Gear Reducer For Servo Motor with Good quality

Product Description

90mm Round Flange High Precision Helical Gear AE Series Planetary Gear Reducer For Servo Motor

Product Description

AE Series Planetary Gearbox additionally adds front and rear oil seals, uses the output shaft double support structure and design of helix gear, which makes the gear meshing  smoother and stable, the AE Series can be used in various control transmission fields with servo motors. The backlash of the AE series is less than 5 arc.min and the reduction ratio covers 3~100.

The Product Advantages of Planetary Gearbox:

1.Flexible structure design, in line with various working conditions.
2.Ring gear processing technology: Using internal gear slotting machine and hobbling machine; the precision of ring gear after processing can reach GB7.
3.Hardened gear secondary scraping technology: secondary high-speed dry cutting of gear eliminates gear deformation caused by heat treatment. Gear accuracy can reach GB6.
4.Reliable backlash testing.

How To Read
90    AE    10    (  )     (S) – 400   T1
 a       b      c      d        e       f       g

a    Frame Size     90=90mm
b    Series code: AE     Round mounting flange series
c    Reduction Ratio     Single Stage: 3,4,5,6,7,8,9,10;
    Two Stages: 15,20,25,30,35,40,45,50,60,70,80,90,100
d    Backlash     Single Stage: ≤5arc.min;  
    Two Stages: ≤8arc.min; 
e    Input shaft type     S: Overall locking (Omitted) (Regardless of whether the motor has a keyway);
    S1: Locking with locking ring (Regardless whether the motor has a  keyway );
    S2: Locking with keyway (Input shaft with key);
    K: With keyway
    A: Other types (Please contact with us)
f Applicable servo motor power (W),Please contact us for specific power
g Please contact us for the mounting type of the flange

 

Spesifications & Details

 

Product Type Unit Number Of Stage Reduction Ratio 90AE
Rated Output Torque N.M 1 3 85
4 95
5 105
7 93
8 83
10 70
2 12 115
15 115
16 130
20 130
25 135
32 120
35 125
40 115
50 135
64 83
80 83
100 73
Max. radial force* N 1,2 3~100 2100
Max. axial force* 1,2 3~100 1050
Full Load Efficiency % 1 3~10 ≥97%
2 15~100 ≥94%
Backlash arc.min 1 3~10 ≤5
2 15~100 ≤8

*Maximum radial force and maximum axial force, when the output is 100rpm, it acts on the center position (L/2) of the output shaft.

Dimensions (mm):

Product type No. of stage L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 D1 D2
90AE 1 151 33.7 77.3 40 36 28 4 3 40 10 Φ90 Φ70G7
2 165.5 91.8
No. of stage D3 D4 D5 D6 D7 D8 B1 H1 G1 G2 G3 Q3
1,2 ≤19G7 Φ20h7 Φ30 Φ60h7 Φ90 Φ70 6 22.5 M5×12 M6×12 M6×18 80

Details of AE series Planetary Gearbox

Mechanism

Compact output shaft mechanism

It adopts the design of output shaft integrated system, compact structure, high rigidity, and it can withstand large impact. Place the input coupling and the sun gear at the center of the output shaft to improve the concentricity of the components, thereby effectively controlling the gear clearance and improving the backlash of the whole gearbox.
 

Structure

Full needle structure

The inner bearing of the planetary gear adopts a full-needle design, the inner hole is made by a grinding process, the surface hardness is HRC60, and the cylindricity is less than 0.003mm.
 

Compared with AF Series
AF series planetary gearbox uses square through hole flange, but AE series uses round threaded flange.
For other specifications, AE series planetary gearbox is similar with AF series.

Other Model Types of AE series Planetary Gearbox
 

More products,please click here…
 

Assembly Procedure

Please follow the tips bellow to assemble the servo motor and reducer. Except for specified products, there are various dimensions of servo motors, some motors may not be CZPT to connect with flanges.Therefore, be sure to use the proper motor which is specified when place your order.

 

In Case Of Assembling A Motor Without Key

1.Take off the rubber cap, turn the input shaft, and match the head of the bolt to the hole of the rubber cap. Make sure that the fixing bolt is loosened.

2.Gradually put the motor shaft into the input shaft (Ensure that it is smoothly put in without jam.). Be careful not to be inserted with the motor tilted.

3.Attach the motor to the reducer and fasten the bolt with designated fastening torque. See Table 1.

4.Fasten the fixing bolt of the input shaft with designated fastening torque wrench, etc. See Table 2.

5.Put on the rubber cap.
 

 

Table 1

Motor Combination Bolt Fastening Torque
(N·m) (kgf·cm)
M3 1.0 10
M4 3.0 30
M5 5.8 60
M6 9.8 100
M8 19.6 200
M10 39.2 400
M12 68.6 700
M16 168 1650

Table 2

Combination Bolt Fastening Torque
(N·m) (kgf·cm)
M3 1.5 15
M4 3.5 35
M5 7.1 71
M6 12 120
M8 30 300
M10 60 612

 

Company Profile

Delivery

Our Services

1.Maintenance time & Warranty: 1 year after leaving factory 
2.Other service: Including modeling selection guide, installation guide, and problem shooting guide, etc.

FAQ

Q: What’re your main products?
A: We currently produce Brushed DC Motors, Brushed DC Gear Motors, Planetary DC Gear Motors, Brushless DC Motors, AC Motors, High Precision Planetary Gearbox and Precision Cycloidal Gearbox etc.. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.

Q: How to select a suitable motor or gearbox?
A:If you have motor pictures or drawings to show us, or you have detailed specifications, such as, voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.

Q: Do you have a customized service for your standard motors or gearboxes?
A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.

Q: Do you have an individual design service for motors?
A: Yes, we would like to design motors individually for our customers, but some kind of  molds are necessory to be developped which may need exact cost and design charging. 

Q: What’s your lead time?
A: Generally speaking, our regular standard product will need 15-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depend on the specific orders.
 

 

Screw Sizes and Their Uses

Screws have different sizes and features. This article will discuss screw sizes and their uses. There are 2 main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.

The major diameter of a screw shaft

The major diameter of a screw shaft is the distance from the outer edge of the thread on 1 side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between 2 and 16 inches. A screw with a pointy tip has a smaller major diameter than 1 without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is 1 element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.
screwshaft

The pitch diameter of a screw shaft

When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of 1 thread to the corresponding point on the next thread. Measurement is made from 1 thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.

The thread depth of a screw shaft

Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in 1 revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.
screwshaft

The lead of a screw shaft

Pitch and lead are 2 measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are 2 ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with 2 or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.

The thread angle of a screw shaft

The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are 2 types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.
screwshaft

The tapped hole (or nut) into which the screw fits

A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.

China factory 90mm Round Flange High Precision Helical Gear AE Series Planetary Gear Reducer For Servo Motor   with Good qualityChina factory 90mm Round Flange High Precision Helical Gear AE Series Planetary Gear Reducer For Servo Motor   with Good quality