China Custom Construction Machinery Parts PC200-6 PC220-6 Excavator Spare Parts Arm Hydraulic Cylinder 701-01-Xz901 with Great quality

Product Description

Company Profile

ZheJiang Xihu (West Lake) Dis. International trade Co., Ltd. is a new foreign trade company, located in HangZhou, ZheJiang , China, is the production base of China Heavy Truck (HOWO) truck, is the distribution center of heavy truck parts.  The company’s business models include sinotruk(HOWO), ZheJiang Automobile, FAW, CZPT and other main engine plants of various models, products involving engine, gearbox, cab, axle, chassis, electrical appliances and other parts of the whole car, also involved in part of the construction machinery accessories.   Sales scope covers domestic, Russia, Southeast Asia, West Asia, Central Asia, Africa and other regions.  We have professional auto parts and overseas warehouses, and carry out cross-border electronic business with international companies.  

ZheJiang Xihu (West Lake) Dis. adhering to the “one-stop” service,cooperate with all kinds of high quality manufacturers in China, with high quality resource supply chain , providing high quality and low price products for foreign buyers and end customers.  The company has established a high quality management system, a complete supply chain and a professional technical team, integrating the resources of major factories and cooperating with them, and winning customer recognition with price advantage under the premise of quality assurance.  The company has obvious market network advantages, product advantages, technological advantages and cost advantages, and has established a unique corporate culture concept.  
ZheJiang Xihu (West Lake) Dis. strives to establish a series of local sales channels, such as brand distribution network, local enterprise unified service and large end customer service.  The company also seeks to promote high quality automotive parts worldwide and meet customer needs as much as possible. We are trying to promote our own brand “JINHangZhou”, focusing on high-end quality products and pushing them to the market with good quality.
The company promotes the “Belt and Road” strategy, adheres to the principle of extensive consultation, joint construction and sharing, and cooperates with many domestic and foreign companies.  
“Fulfill the service commitment, create a better future” is the common concept of Xihu (West Lake) Dis. company, according to customer requirements for service.  To meet the needs of customers is our service tenet;  Customer satisfaction is our service goal;  Customer recognition is a great achievement for each member.  
Honesty and trustworthiness is the foundation of the company, so that honesty and trustworthiness become the stepping CZPT of the company.  
A cooperation, a lifelong friend!  

Business Scope

Parts display

 

Our Service

1.We supply parts to many truckexport companies as our competitive. Either original or OEM parts, we have lots of directly suppliers to choose. You could get HOWO/SHACMAN/FAW/XIHU (WEST LAKE) DIS.FENG spare parts bellow market price. 
2.”One-stop foreign trade service”: Quotation–Preparation–Delivery.With 10+year experience,weProficient in parts business management process.
3.After getting your order, we will take pictures of every partsfor you. Even if you have 500 items.
4.With CZPT parts system,we can get the exact information according the chassis no and assembly nameplate , accurate rate reaches 95%.

Our Advantages

1) Reply your enquiry in 2 working hours.
2) 100% delivery of all same quality.
3) Long lasting working life time.
4) Small order acceptable.
5) Timely delivery.
6) Excellent after-sale service.
7) Parts center build support for our dealers.

FAQ

Q: Are you a manufacturer or trading company?
A: We are manufacturer.

QWhat to do if I don’t know the part number? 
A: If you give us the chassis number or the parts photos, we can provide the correct parts you needed.
 
QCan you supply other spare parts?
A: Yes, of course. As you know, 1 truck has thousands of parts so that we can’t show all of them.
Just tell us more details, we’ll find them for you.
 
Q: What’s your payment term?
A: 30% T/T in advance, 70% balance before shipment

QWhat’s the delivery time?
A: Most of parts are available in storage. So can delivery in 2 days after payment. For the ones no storage,
can delivery in 7 days. For container delivery, 1 container can finish loading in 10 days.

Certifications

 

Packaging & Shipping

 

 

Worm Gear Motors

Worm gear motors are often preferred for quieter operation because of the smooth sliding motion of the worm shaft. Unlike gear motors with teeth, which may click as the worm turns, worm gear motors can be installed in a quiet area. In this article, we will talk about the CZPT whirling process and the various types of worms available. We’ll also discuss the benefits of worm gear motors and worm wheel.
worm shaft

worm gear

In the case of a worm gear, the axial pitch of the ring pinion of the corresponding revolving worm is equal to the circular pitch of the mating revolving pinion of the worm gear. A worm with 1 start is known as a worm with a lead. This leads to a smaller worm wheel. Worms can work in tight spaces because of their small profile.
Generally, a worm gear has high efficiency, but there are a few disadvantages. Worm gears are not recommended for high-heat applications because of their high level of rubbing. A full-fluid lubricant film and the low wear level of the gear reduce friction and wear. Worm gears also have a lower wear rate than a standard gear. The worm shaft and worm gear is also more efficient than a standard gear.
The worm gear shaft is cradled within a self-aligning bearing block that is attached to the gearbox casing. The eccentric housing has radial bearings on both ends, enabling it to engage with the worm gear wheel. The drive is transferred to the worm gear shaft through bevel gears 13A, 1 fixed at the ends of the worm gear shaft and the other in the center of the cross-shaft.

worm wheel

In a worm gearbox, the pinion or worm gear is centered between a geared cylinder and a worm shaft. The worm gear shaft is supported at either end by a radial thrust bearing. A gearbox’s cross-shaft is fixed to a suitable drive means and pivotally attached to the worm wheel. The input drive is transferred to the worm gear shaft 10 through bevel gears 13A, 1 of which is fixed to the end of the worm gear shaft and the other at the centre of the cross-shaft.
Worms and worm wheels are available in several materials. The worm wheel is made of bronze alloy, aluminum, or steel. Aluminum bronze worm wheels are a good choice for high-speed applications. Cast iron worm wheels are cheap and suitable for light loads. MC nylon worm wheels are highly wear-resistant and machinable. Aluminum bronze worm wheels are available and are good for applications with severe wear conditions.
When designing a worm wheel, it is vital to determine the correct lubricant for the worm shaft and a corresponding worm wheel. A suitable lubricant should have a kinematic viscosity of 300 mm2/s and be used for worm wheel sleeve bearings. The worm wheel and worm shaft should be properly lubricated to ensure their longevity.

Multi-start worms

A multi-start worm gear screw jack combines the benefits of multiple starts with linear output speeds. The multi-start worm shaft reduces the effects of single start worms and large ratio gears. Both types of worm gears have a reversible worm that can be reversed or stopped by hand, depending on the application. The worm gear’s self-locking ability depends on the lead angle, pressure angle, and friction coefficient.
A single-start worm has a single thread running the length of its shaft. The worm advances 1 tooth per revolution. A multi-start worm has multiple threads in each of its threads. The gear reduction on a multi-start worm is equal to the number of teeth on the gear minus the number of starts on the worm shaft. In general, a multi-start worm has 2 or 3 threads.
Worm gears can be quieter than other types of gears because the worm shaft glides rather than clicking. This makes them an excellent choice for applications where noise is a concern. Worm gears can be made of softer material, making them more noise-tolerant. In addition, they can withstand shock loads. Compared to gears with toothed teeth, worm gears have a lower noise and vibration rate.
worm shaft

CZPT whirling process

The CZPT whirling process for worm shafts raises the bar for precision gear machining in small to medium production volumes. The CZPT whirling process reduces thread rolling, increases worm quality, and offers reduced cycle times. The CZPT LWN-90 whirling machine features a steel bed, programmable force tailstock, and five-axis interpolation for increased accuracy and quality.
Its 4,000-rpm, 5-kW whirling spindle produces worms and various types of screws. Its outer diameters are up to 2.5 inches, while its length is up to 20 inches. Its dry-cutting process uses a vortex tube to deliver chilled compressed air to the cutting point. Oil is also added to the mixture. The worm shafts produced are free of undercuts, reducing the amount of machining required.
Induction hardening is a process that takes advantage of the whirling process. The induction hardening process utilizes alternating current (AC) to cause eddy currents in metallic objects. The higher the frequency, the higher the surface temperature. The electrical frequency is monitored through sensors to prevent overheating. Induction heating is programmable so that only certain parts of the worm shaft will harden.

Common tangent at an arbitrary point on both surfaces of the worm wheel

A worm gear consists of 2 helical segments with a helix angle equal to 90 degrees. This shape allows the worm to rotate with more than 1 tooth per rotation. A worm’s helix angle is usually close to 90 degrees and the body length is fairly long in the axial direction. A worm gear with a lead angle g has similar properties as a screw gear with a helix angle of 90 degrees.
The axial cross section of a worm gear is not conventionally trapezoidal. Instead, the linear part of the oblique side is replaced by cycloid curves. These curves have a common tangent near the pitch line. The worm wheel is then formed by gear cutting, resulting in a gear with 2 meshing surfaces. This worm gear can rotate at high speeds and still operate quietly.
A worm wheel with a cycloid pitch is a more efficient worm gear. It reduces friction between the worm and the gear, resulting in greater durability, improved operating efficiency, and reduced noise. This pitch line also helps the worm wheel engage more evenly and smoothly. Moreover, it prevents interference with their appearance. It also makes worm wheel and gear engagement smoother.
worm shaft

Calculation of worm shaft deflection

There are several methods for calculating worm shaft deflection, and each method has its own set of disadvantages. These commonly used methods provide good approximations but are inadequate for determining the actual worm shaft deflection. For example, these methods do not account for the geometric modifications to the worm, such as its helical winding of teeth. Furthermore, they overestimate the stiffening effect of the gearing. Hence, efficient thin worm shaft designs require other approaches.
Fortunately, several methods exist to determine the maximum worm shaft deflection. These methods use the finite element method, and include boundary conditions and parameter calculations. Here, we look at a couple of methods. The first method, DIN 3996, calculates the maximum worm shaft deflection based on the test results, while the second one, AGMA 6022, uses the root diameter of the worm as the equivalent bending diameter.
The second method focuses on the basic parameters of worm gearing. We’ll take a closer look at each. We’ll examine worm gearing teeth and the geometric factors that influence them. Commonly, the range of worm gearing teeth is 1 to four, but it can be as large as twelve. Choosing the teeth should depend on optimization requirements, including efficiency and weight. For example, if a worm gearing needs to be smaller than the previous model, then a small number of teeth will suffice.

China Custom Construction Machinery Parts PC200-6 PC220-6 Excavator Spare Parts Arm Hydraulic Cylinder 701-01-Xz901     with Great qualityChina Custom Construction Machinery Parts PC200-6 PC220-6 Excavator Spare Parts Arm Hydraulic Cylinder 701-01-Xz901     with Great quality

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