agri gearboxes | screw-shafts

Product Description

Agriculture Machinery Gear Box Agri Farm Tractor Rotary Mowers Bevel Digger Fertilizer Spreader Right Angle Drive Shaft Bevel Pto Agriculture Gearboxes.

This Miter Bevel Gearbox is also known as spiral bevel gearbox, spiral bevel gear drives, spiral bevel gear reducers, right angle miter gearbox, or 90 degree bevel gearbox. The spiral bevel gear delivers high transmission capacity and high efficiency. The Spiral Bevel Gearboxes are specifically engineered for use with machine screw jacks and actuators in multiple jack systems. You have several linear drives that you would like to connect together – i.e. to synchronize. For economic reasons, you don’t want to drive every single linear drive separately with its own electric motor. This is where our bevel gearboxes come into their own.

Right Angle Spiral Bevel Gearbox Applications: 90-degree reducers are used throughout dozens of industries to alter torque and speed in drive components. Any use that demands the reliable transfer of speed or power. There are countless applications for 3-way transmission gearboxes, some of which include: Industrial Dryers, Folding Machines, Brushing Machinery, Power Transmission Equipment, Pumps, Damper Controls, Case Openers, Paper Rewinders, Test Equipment. Our Right Angle Bevel Gearbox lineup includes shaft to shaft, shaft to bore, bore to bore, 2 shaft, 3 shaft, high ratio, and low profile models. All our Bevel T right angle gearboxes are built with a single output shaft extended out both sides of the box, so both ends rotate simultaneously in the same direction.

Compact Cubic Style Spiral Bevel Gearbox with Solid Shafts
The spiral bevel gearbox offers a robust, powerful and compact design, for right angle power transmission. The practical cubic shape of bevel gearboxes allow universal mounting possibilities on every kind of machines. They are proven in the market for their versatility, very low backlash and low transmission error. The design comprises of ball bearings for quiet operation and tapered bearings for higher radial load capacity. Application in Pulp and paper industry, food processing, off-shore industry, mining and mineral industry, paper machine drives, pulper drives, blowers, pumps, vacuum pump drives and flooding pump stations.
JTP Series: Solid shaft input, Solid shaft output.
JTPH Series: Solid shaft input, Hollow shaft output.
JTPF Series: Input Flange(IEC, NEMA), Solid shaft output.
JTPG Series: Input Flange(IEC, NEMA), Hollow shaft output.

Features:
* Ultra Compact Design. All-round machined symmetrical housing, and all-round tapped holes for universal mounting, 6 possible mounting positions.
* Gears ratios of 1:1, 1.5:1, 2:1, 3:1, 4:1 and 5:1 are actual ones.
* Power range from 0.1kw to 156kw, Torque range from 11.5Nm to 1199Nm.
* Gear transmission average efficiency up to 94%.
* 2-way, 3-way and 4-way Configurations. Allows both horizontal and vertical shafts.
* Solid Shaft, Hollow Shaft, and Direct motor mount or via motor flanges.
* Various Shafts Arrangements, Rotation Directions and Mounting Positions available.
* High efficiency, high transmission capacity, low backlash, noiseless operation, low running temperature and long service life.

T Series Right Angle Spiral Bevel Gearbox
JT Series Spiral Bevel Gearboxes with the use of high-precision spiral bevel gears, delivers high transmission efficiency and high transfer capacity, high performance, low backlash, smooth rotation, silent drive possible, low running temperature, long life and easy installation. General applications in worm gear screw jack systems, industrial dryers, folding machines, brushing machinery, power transmission equipment, pumps, damper controls, case openers, paper rewinders, test equipment, blowers and fans, unloaders and unscramblers, bottle capping, electroplating machinery, folding machines, food processing equipment, transfer machines, chemical mixers and recording equipment.

Features:
* Used in pairs case hardened alloy steel spiral bevel gears to transmit rotary motion, mechanical power and torque.
* Gears ratios of 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 4:1 and 5:1 are actual ones.
* Power range from 1.79kw to 335kw, Torque range from 28Nm to 5713Nm.
* Gear transmission average efficiency up to 94%.
* 2-way, 3-way and 4-way Configurations. Allows both horizontal and vertical shafts.
* Solid Shaft, Hollow Shaft, and Direct motor mount or via motor flanges.
* Various Shafts Arrangements, Rotation Directions and Mounting Positions available.
* High efficiency, high transmission capacity, low backlash, noiseless operation, low running temperature and long service life.

Space-saving Aluminium Gearboxes – Lightweight, Super Small
JTA Series Aluminum Alloy Bevel Gearbox is a small-sized, ultra-lightweight type of our miter gear box. These units are lubricated for life to assure trouble free service. High-performance spiral bevel gear is used to enable silent and high transmission operations. Universal mounting type that can be mounted in any direction. 1:1 and 2:1 ratios, with 2 or 3 shafts orientations. 4 sizes are available to suit your needs in a compact, maintenance free, ready to use package.

Features:
* Compact design, Small sizes, Ultra light weight.
* Gears ratios of 1:1, 2:1 are actual ones.
* Power range from 0.02kw to 4.94kw, Torque range from 2Nm to 40Nm.
* Gear transmission average efficiency up to 94%.
* 2-shafts and 3-shafts Configurations. Allows both horizontal and vertical shafts.
* High efficiency, low backlash, noiseless operation, low running temperature and long service life.

Structures and Materials:
* Spiral bevel gears: High purity rugged alloy steel 20CrMnTiH, carburizing and quenching, case hardened and lapped in pairs for intersecting shafts, low noise with grinded spiral teeth, high torque with milled teeth, high rigidity and wear resistance.
* Housings(Gearboxes): Aluminum alloy.
* Input and output shafts: Hardened and tempered alloy steel material, hanging heavy load capacity With key and key way. Custom corrosion resistant stainless steel shafts, or other corrosion resistance painting shafts, spline shaft, shaft without key and key way.
* Bearings: Heavy duty tapered roller bearing. Custom reinforced bearings for higher radial and axial load. Custom corrosion resistant stainless steel bearings.
Spiral-bevel gear drives, like all bevel gear drives, are designed for high capacity, efficiency, quiet operation, and long service life. These spiral-bevel gear drives are designed for operation that’s as reliable as it is quiet. Their shafts are heat treated and alloy-steel mounted on heavy-duty, tapered roller bearings for smoother operation. Their housings are made of precision-machined cast iron to ensure accurate, permanent alignment of the gears for superior performance. Double-bearing input support extends horsepower capacity and increases durability.
Right 90 spiral-bevel gear drives are designed for high efficiency, quiet operation, and long service life. Housings are made of lightweight aluminum alloy. Performance that’s reliable, efficient, and as noise-free as possible Input and output shaft flanges simplify mounting and installation Can be used to either reduce or increase speed Single and double-projecting output shafts for application flexibility Ground alloy steel shafts are mounted on precision ball bearings for smooth operation Pre-lubrication designed to last for the life of the drive improves performance and reduces maintenance.
Bevel gear drives feature compact, rugged construction and precision-forged, spiral-tooth bevel gears, making them ideal for industrial applications where low-speed/ high-torque drives are required. Spiral-tooth bevel gears have teeth that are made from precision-forged alloy steel for maximum strength, as well as case hardened for increased durability. Input and output shafts are constructed from ground and polished heat-treated alloy steel to further enhance the overall toughness of these drives. Precision-machined, one-piece, quality cast-iron housings mean less maintenance and greater reliability. Double-lip, garter-spring-type oil seals are use to retain lubricants and block foreign-matter contamination for extended life. All drives are furnished with keys for projecting shafts to assure quick installation.

Shipment and Packing Pictures
Shipping:
1. CZPT freight: seaport to seaport, price terms CIF, FOB, EXW, CFR etc.
2. Air freight: airport to airport, price terms EXW, CRF etc.
3. Air courier: DHL, FEDEX, UPS, TNT door to door shipment, price terms DDU, CPT etc.
Packing:
16567X3, registered Capital 500000CNY) is a leading manufacturer and supplier of Screw Jacks (Mechanical Actuators), Bevel Gearboxes, Lifting Systems, Electric Linear Actuators, Gearmotors and Speed Reducers, Others Linear Motion and Power Transmission Products in China. We are located in Chang An, Xihu (West Lake) Dis. guan, Guang dong in China. We are an audited professional manufacturer and supplier by SGS (Serial NO.: QIP-ASI192186) and BV (Serial NO.: MIC-ASR257162) organizations. We have a strict quality system, with senior engineers, experienced skilled workers and practiced sales teams, and consistently provide the customers with the best engineered solution for precision linear actuation, power transmission and mechanical jacking systems. CZPT Industries guarantees quality, reliability, performance and value for today’s demanding industrial applications.

Company Advantages
* One of the biggest orders with 1750 units screw lift jacks.
* Standard products with 2D Drawings(DXF, DWG, PDF) and 3D CAD Model(STEP).
* 100% quality assured with double quality inspections. Original Inspection Reports, Operation Manual, and Book Catalogue are put into the packages.
* 100% safety transportation with strong standard export plywood cases materials (free fumigation).
* International standard materials for all standard products.
* Custom design available, OEM service available, Free engineering advice and Customer label available.

Products List
* Manual Screw Jacks
* Electric Screw Jacks
* Screw Jacks Series:
Cubic Screw Jack JTC Series, Machine Screw Jack JTW Series, Trapezoidal Screw Jack JT Series, Worm Screw Jack JTM Series, Stainless Steel Screw Jack JSS Series, Through Hole Screw Jack JTH Series, Ball Screw Jack JTB Series, Cubic Ball Screw Jack JTD Series, Bevel Gear Screw Jack JTS Series and JTG Series, and Electric Cylinder JTE Series.
* Bevel Gearboxes Series:
Cubic Bevel Gearbox JTP Series, Hollow Shaft Gearbox JTPH Series, Input Flange Gearbox JTPF Series, Input Flange and Hollow shaft Gearbox JTPG Series, Stainless Steel Gearbox JTP Series, Aluminum Gearbox JTA Series, and Bevel Gearboxes JT Series.
* Screw Jack Lifting Systems and Accessories:
2jacks lifting system, 3jacks lifting system, 4jacks lifting system, 6jacks lifting system, 8jacks lifting system……14jacks lifting system. Lifting systems accessories cover ac, dc motors, geared motors, servo motors, stepper motors, handwheels, couplings, universal joints, telescopic universal joints, connecting shafts, cardan shafts, limit switches, proximity switches, safety nut, travel nut, rod ends, stop nuts, pillow block bearings, flange blocks, motor flange nema or iec, encoder, potentiometer, frequency converter, position indicators, trunnion plate, and trunnion mounting brackets.
* Electric Linear Actuators Series:
Electro Mechanical Actuators LA Series, Electro Mechanical Actuators LAP Series.
* Gear Reducers Series:
Helical Gear Reducers R Series, Helical Bevel Gear Reducers K Series, Parallel Shaft Helical Gear Reducers F Series, Helical Worm Gear Reducers S Series, Helical Gear Motor GMH/GMV Series, and Worm Gear Reducers NMRV Series.

Customers Distribution Countries
* American Countries: United States, Mexico, Canada, Chile, Argentina, Xihu (West Lake) Dis.via, Brazil, Colombia, Guatemala, Honduras, Panama, Peru.
* European Countries: Germany, France, United Kingdom, Italy, Spain, Poland, Romania, Netherlands, Belgium, Greece, Czech Republic, Portugal, Sweden, Hungary, Austria, Switzerland, Bulgaria, Denmark, Finland, Slovakia, Norway, Ireland, Georgia, Slovenia.
* Asian Countries: Malaysia, Indonesia, Singapore, Philippines, Vietnam, Thailand, India, Israel, Cambodia, Myanmar, Sri Lanka, Maldives, Pakistan, Iran, Turkey, Jordan, Saudi Arabia, Yemen, Oman, United Arab Emirates, Qatar, Georgia, Armenia.
* Oceanian Countries: Australia, New Zealand.
* African Countries: Egypt, Ethiopia, Nigeria, South Africa, Zambia, Mozambique.

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.

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