Tag Archives: standard roller chain motorcycle

China Standard ISO 9001 Approved motorcycle part sprocket Stainless Steel Agricultural Transmission Roller conveyor Chain connecting link roller chain

Product Description

ISO 9001 Approved Agricultural Chain

Why choose us ?
1. HangZhou Xihu (West Lake) Dis.hua Chain Group Co., Ltd established in 1991, we have 5 subsidiaries in china and also have 6 subsidiaries abroad;
2. we covering a production area of 200,100 square meters, have more than 1,800 sets of advanced equipment and over 3,100 highly skilled employees, the annual production capacity has exceeded 20,000,000 meters;
3. we specialized in producing all kinds of standard chains and special chains, such as A or B series chains, drive chains, conveyor chains, drag chains, agricultural chains, sprockets, gears and so on;
4. we have obtained ISO9001, ISO14001, ISO16969, AAA and API certificates.
5. Our partners among world top enterprises, such as JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, YANMAR, etc. 

Our agricultural chains are as following items:
1. SH series high strength heavy duty short pitch roller chains
2. SP series high strength heavy duty short pitch roller chains
3. Walking tractor chains
4. Combine chains
5. ZGS38 combine chain with attachments
6. Rice harvester chains
7. Various agricultural chain with attachments
8. S type steel agricultural chains
9. S type steel agricultural chain with attachments
10. A Type steel agricultural chains
11. CA type steel agricultural chains
12. C type steel agricultural chain with attachments
13. Special agricultural chain with attachments

1) Related Products

2) Certificates 

HangZhou Xihu (West Lake) Dis.hua Chain Group Co., Ltd was founded in 1 9 9 1, and now it has five wholly owned subsidiaries, one in ZheJiang  province, other four in HangZhou, ZHangZhoug province, it is a professional manufacturer of chains, sprockets, tooth gears and various power transmission products.
 
The group has XIHU (WEST LAKE) DIS.HUA, ZIQIANG brands, is focused on producing all variety of standard roller chains and special chains, such as conveyor chain, stainless steel chain, agricultural chain. With Xihu (West Lake) Dis.hua brand registered in more than 70 countries like America, Europe, Japan, it is building long term cooperation with these world top enterprises, such as JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, YANMAR.  
 
There is a technical center of province level, Xihu (West Lake) Dis.hua academician working station, experiment station for Xihu (West Lake) Dis.hua post doctors, and national hundreds of program set up in Xihu (West Lake) Dis.hua group. With these platforms and strong technical ability, the more than hundreds of Engineers and technicians have developed all variety of special high precise and high strength products, conducted mold programs for key components in the car and national industry revitalizing program. 
 
Great attention has been paid on environmental protection and energy saving. The product well displays environmental protection and energy saving. In the year of 2 0 0 0, Xihu (West Lake) Dis.hua took the lead in gaining I S O 1 4 0 0 1 environment management certificate and thereafter passed the inspection of clean production and recycling economy, winning the title of “ZHangZhoug Green Enterprise”.
 
“We are always serving our customers with our best products.”

Usage: Transmission Chain
Material: Alloy/Carbon Steel
Surface Treatment: Oil Blooming
Feature: Heat Resistant
Chain Size: 1/2"*11/128"
Structure: Roller Chain
Customization:
Available

|

Customized Request

chain

Choosing a drive chain for a belt conveyor

The drive chain is used to move heavy objects on the conveyor chain. Chains are magnetic, antistatic, high temperature, or chemical resistant, depending on the application. These types of drive chains are used in many different industries. A common machine that uses this type of drive is a chain hoist. Chain hoists are designed to lift heavy loads with minimal effort. Chains are often used to transport heavy loads.

roller chain

Whether using a roller chain as a drive chain or a belt conveyor can be tricky. Whether it’s a small low-speed drive with manual lubrication or a high-speed pump-lubricated drive with multiple sprockets, there are several factors to consider when choosing a roller chain. First, you need to consider motor horsepower and rpm. The speed of the motor determines how much chain you need. For example, if you are using a low-speed drive, you will need to choose a low-pitch, high-pitch chain. Another thing to consider is chain length – ideally, you can go for an even number of sprockets and chains, but never go smaller.
The lubrication system is also important because the lubrication system must be able to deliver enough oil. The type of oil used to lubricate a chain depends on its operating environment, temperature and speed. Wear is caused by pressure on the bearing, angular sliding of the pins, and rotation of the rollers. There are five different types of lubrication methods available, depending on the system used. A high-quality carbon steel chain is a major advantage when operating at high temperatures, as it can withstand higher temperatures.
The materials of construction for roller chains vary by application. Typically, the most common materials are steel and stainless steel, but sometimes alloy steels are used in food processing machinery that may have lubrication problems. Nylon and brass are also sometimes used. Some industries require heavy-duty chains. If you need an extremely heavy chain, you may want to consider a heavy-duty roller chain. If you are not sure which type of chain is best for your application, consult an industry expert.
Unlike other chains, roller chains are more efficient from a size and weight perspective. While solution chains are useful in some situations, drive chains are more effective for dirty work and slipping on tracks. They are commonly used in construction and manufacturing. There are other advantages to using a drive chain. They are generally stronger than belts, which is a huge benefit. So, if you’re wondering which is better, here are them:

Multi-strand roller chain

The multi-strand roller chains for drive chains market is expected to grow at a CAGR of over 20% during the forecast period. Market reports cover product demand, supply, and cost. The report covers the global market including company profiles, product details, and contact information of key players. It also takes into account the revenue generated by different application areas. The report contains 159 pages of useful information and data. It is an essential tool for anyone involved in drive chain manufacturing.
The essential characteristics of multi-strand chains are their power ratings and allowable bearing area pressures. Power rating is an important characteristic that determines the chain’s ability to transmit a specific load. Typically, multi-strand chains are rated in the range of 12,000 watts per strand. However, their capabilities are limited by link plate fatigue, roller impact fatigue, and wear between pins and bushings.
Energy Series chains are ideal for high-speed and high shock load applications. The chain is designed to provide reliable power and withstand the rigors of the oil and gas industry. It uses high-strength steel and double-coated rolls. These chains come in different lengths and come in two types: single-strand and multi-strand. It is best to consult a professional to find out which chain best suits your needs.
The global multi-strand roller chains market is expected to grow at a CAGR of over 7% during the forecast period. From 2011 to 2019, the industry is expected to grow by nearly 6%. However, the outlook for this market is not optimistic, with some companies experiencing negative growth over the past year. Nonetheless, slowing global economic growth and tightening COVID-19 regulations are likely to hinder the market growth.
Although requirements vary by application, it must be remembered that the load on a multi-strand roller chain must not be greater than 1/9 or 1/6 of the tensile strength of the chain. If the load exceeds this threshold, the chainplates will fatigue. This is the main reason why roller chains are expensive. However, this is not always the case. Multi-strand roller chains are a great idea if you are looking for an affordable and reliable drive chain.

double chain

If you’re looking for an industrial-grade drive chain, you’ve probably considered a double chain. The chain meshes with the sprockets on either side of the gears. It comes in different styles, each with its own advantages and disadvantages. The CZPT duplex series has twice the power capacity of standard SC duplex chains. This type of chain is usually best for new applications. On the other hand, SC double chain chains are the cheapest but have less weight and power capacity.
Another option is a triple drive chain. This type of drive chain has an additional row of plates and contains three sprockets. Its unique design reduces the weight and impact velocity of the timing chain. It is usually used in automotive applications. It is ideal for low to medium-load timing applications. It is also available in acoustically optimized versions. Three-quarter inch pitch double chain chains are widely used in gasoline engine aids and timing drives.
chain

flat top chain

High friction rubber is usually installed on the top or bottom of a flat top drive chain to improve its high friction surface and prevent interference during side bend conveying. The chain plate can be customized with thin rubber layer or thick elastic polyurethane rubber according to customer requirements. In addition to providing high friction, the flat top chain also provides excellent anti-slip properties for glass bottles.
Premium steel flat top chain with high quality surface finish and excellent wear resistance. They have a high level of noise reduction and can be used in heavy duty conveying applications. These chains are available in a variety of alloys such as stainless steel or aluminum. Some models are designed to be very rugged and last longer. Aluminum and galvanized steel chains are popular choices for these chains.
Flat Top Drive Chain Conveyors are versatile and come in an endless combination of configurations. Drives can be connected end-to-end to form long conveyor lines, while side-curved flat-top chains are versatile enough to handle tandem, serpentine or carousel configurations. Standard and heavy duty models are also available. Flat top chains can be used in many different applications including food, beverages and other commodities.
Standard flat top chains are usually rectangular or L-shaped and designed for use on straight conveyors. In some cases, space constraints may require a U-shaped or rectangular conveyor line. For smoother conveying, side-curved flat-top chains can be used. These chains are paired with regular rectangular chain plates and tall pins for high load capacity. They come in different widths, including multi-strand chains.

China Standard ISO 9001 Approved motorcycle part sprocket Stainless Steel Agricultural Transmission Roller conveyor Chain   connecting link roller chainChina Standard ISO 9001 Approved motorcycle part sprocket Stainless Steel Agricultural Transmission Roller conveyor Chain   connecting link roller chain
editor by CX 2023-05-18

China Motorcycle Heavy Duty Type Precision Roller Chains ANSI/ISO Standard steel bush chain

Merchandise Description

Design NO.:  415H,420H,425H,428H,428HD,520H,525H,530H

HangZhou Power Transmission organization has specialized generating chains and sprocket products for in excess of
ten years. Growing from domestic market place, now with considerable market knowledge, it has become an critical supplier and exporter in South China, and set up its personal competent brand names.

High quality is the essence of prolonged term organization and assist to our consumers. Production is strictly controlled from origin, typical material selections : 45Mn, 30GeMnTi, #ten, 20Mn, Stainless Steel, Custom-made content, through rigid technique specifications of ANSI, DIN, ISO.

Materials picked Effectively wire-slicing
Plate shot peening Bluing
Well by way of heat-treatment
Carburizing Quenching
Tempering
Oiling/greasing
Pre-stretched
Pre-running

XMPOWER largely protect goods as underneath:

Drive Chains A Series Brief Pitch Precision Roller Chains B Series Brief Pitch Precision Roller Chains
Hefty Collection Limited Pitch Roller Chains Limited Pitch Straight Facet Plate chains
Agricultural Chains and Attachments Oil discipline Roller Chains
Heavy-obligation Cranked url Roller Chains AB Collection Double Pitch Conveyor Roller Chains
Coupling Chains AB Sequence Straight Sidebar Roller Chain
Silent Chains PIV Chains
Conveyor Chains Double Pitch Stright Aspect Plate Conveyor Chains (A & B Series)
Double Pitch Massive Roller Conveyor Chains (A & B Sequence)
Attachments A1, K1, SA1, SK1, WA1, WA2, WK1, WK2, AA1, KK1, SAA1, SKK1, D1, D3, and many others.
Hollow Pin Chains (B/BUSH/ROLLER Type) Aspect Bow Roller Chains
Double Flex Chains Double Additionally Chains
Sharp Best Chains Flat-prime Chains
FV/FVT/FVC Sequence Conveyor chains M/MT/MC Series Conveyor chains
Facet Roller Conveyor Chains Prime Roller Conveyor Chains
Lumber Conveyor Chains Mining and Metallurgy Conveyor Chains
Leaf Chains AL Series Leaf Chains BL Sequence Leaf Chains
LL Collection Leaf Chains  
Special Chains Palm Oil Chains Sugar Chains
Tobacco Machinery Chains Grain Equipment Chains
Beer Bottling Conveyor Roller Chains Coal Chains
Crawler Asphalt Paver Conveyor Chains Chilly Drink Food Processing Chains
Welded Metal Chains H2o Dispose Chains
Motorcycle  Motorcycle chains  Motor Chains
SPROCKETS & Gear 1045 Metal Sprockets, ANSI/DIN requirements Module Gears
Motorcycle sprockets Bevel Gears
Stainless Steel Sprockets Customized

All CZPT goods are strictly checked just before shipping to our consumers. Checks have been conducted by way of substance till concluded solution,

XMPOWER’s experience and determination will be 1 of very best choices as your trustworthy chain supplier.

In the light-weight of our eyesight and mission, we constantly value our every single companion, and operate carefully with every single other to obtain happy solutions. We appear forward to forging sturdy partnership with you and make certain prolonged time period progress!

Make contact with: Alex Huang/Product sales Supervisor/Transmission Dept.
HangZhou Energy TRANSMISSION IMP.& EXP.CO.,LTD
Insert.:  #19 Bldg, #158, Canglindong Rd, Xihu (West Lake) Dis. Industrial Zone, 361
Fax:
Internet: xmpower

US $0.5-50
/ Foot
|
100 Feet

(Min. Order)

###

Standard or Nonstandard: Standard
Application: Textile Machinery, Conveyer Equipment, Packaging Machinery, Food Machinery, Mining Equipment, Agricultural Machinery
Surface Treatment: Polishing
Structure: Roller Chain
Material: Carbon Steel
Type: Short Pitch Chain

###

Samples:
US$ 0/Foot
1 Foot(Min.Order)

|
Request Sample

###

Customization:

###

Material chosen Well wire-cutting
Plate shot peening Bluing
Well through heat-treatment
Carburizing Quenching
Tempering
Oiling/greasing
Pre-stretched
Pre-running

###

Drive Chains A Series Short Pitch Precision Roller Chains B Series Short Pitch Precision Roller Chains
Heavy Series Short Pitch Roller Chains Short Pitch Straight Side Plate chains
Agricultural Chains and Attachments Oil field Roller Chains
Heavy-duty Cranked link Roller Chains AB Series Double Pitch Conveyor Roller Chains
Coupling Chains AB Series Straight Sidebar Roller Chain
Silent Chains PIV Chains
Conveyor Chains Double Pitch Stright Side Plate Conveyor Chains (A & B Series)
Double Pitch Large Roller Conveyor Chains (A & B Series)
Attachments A1, K1, SA1, SK1, WA1, WA2, WK1, WK2, AA1, KK1, SAA1, SKK1, D1, D3, etc.
Hollow Pin Chains (B/BUSH/ROLLER Type) Side Bow Roller Chains
Double Flex Chains Double Plus Chains
Sharp Top Chains Flat-top Chains
FV/FVT/FVC Series Conveyor chains M/MT/MC Series Conveyor chains
Side Roller Conveyor Chains Top Roller Conveyor Chains
Lumber Conveyor Chains Mining and Metallurgy Conveyor Chains
Leaf Chains AL Series Leaf Chains BL Series Leaf Chains
LL Series Leaf Chains  
Special Chains Palm Oil Chains Sugar Chains
Tobacco Machinery Chains Grain Machine Chains
Beer Bottling Conveyor Roller Chains Coal Chains
Crawler Asphalt Paver Conveyor Chains Cold Drink Food Processing Chains
Welded Steel Chains Water Dispose Chains
Motorcycle  Motorcycle chains  Engine Chains
SPROCKETS & Gear 1045 Steel Sprockets, ANSI/DIN standards Module Gears
Motorcycle sprockets Bevel Gears
Stainless Steel Sprockets Customized

###

Contact: Alex Huang/Sales Manager/Transmission Dept.
XIAMEN POWER TRANSMISSION IMP.& EXP.CO.,LTD
Add.:  #19 Bldg, #158, Canglindong Rd, Haicang Industrial Zone, 361000, Xiamen, China.
Branch: Yingbin Rd., Zhuji, Shaoxing, Zhejiang, China
Tel.: 0086-592-5180217
Fax: 0086-592-5559242
Web: xmpower.en.made-in-china.com
US $0.5-50
/ Foot
|
100 Feet

(Min. Order)

###

Standard or Nonstandard: Standard
Application: Textile Machinery, Conveyer Equipment, Packaging Machinery, Food Machinery, Mining Equipment, Agricultural Machinery
Surface Treatment: Polishing
Structure: Roller Chain
Material: Carbon Steel
Type: Short Pitch Chain

###

Samples:
US$ 0/Foot
1 Foot(Min.Order)

|
Request Sample

###

Customization:

###

Material chosen Well wire-cutting
Plate shot peening Bluing
Well through heat-treatment
Carburizing Quenching
Tempering
Oiling/greasing
Pre-stretched
Pre-running

###

Drive Chains A Series Short Pitch Precision Roller Chains B Series Short Pitch Precision Roller Chains
Heavy Series Short Pitch Roller Chains Short Pitch Straight Side Plate chains
Agricultural Chains and Attachments Oil field Roller Chains
Heavy-duty Cranked link Roller Chains AB Series Double Pitch Conveyor Roller Chains
Coupling Chains AB Series Straight Sidebar Roller Chain
Silent Chains PIV Chains
Conveyor Chains Double Pitch Stright Side Plate Conveyor Chains (A & B Series)
Double Pitch Large Roller Conveyor Chains (A & B Series)
Attachments A1, K1, SA1, SK1, WA1, WA2, WK1, WK2, AA1, KK1, SAA1, SKK1, D1, D3, etc.
Hollow Pin Chains (B/BUSH/ROLLER Type) Side Bow Roller Chains
Double Flex Chains Double Plus Chains
Sharp Top Chains Flat-top Chains
FV/FVT/FVC Series Conveyor chains M/MT/MC Series Conveyor chains
Side Roller Conveyor Chains Top Roller Conveyor Chains
Lumber Conveyor Chains Mining and Metallurgy Conveyor Chains
Leaf Chains AL Series Leaf Chains BL Series Leaf Chains
LL Series Leaf Chains  
Special Chains Palm Oil Chains Sugar Chains
Tobacco Machinery Chains Grain Machine Chains
Beer Bottling Conveyor Roller Chains Coal Chains
Crawler Asphalt Paver Conveyor Chains Cold Drink Food Processing Chains
Welded Steel Chains Water Dispose Chains
Motorcycle  Motorcycle chains  Engine Chains
SPROCKETS & Gear 1045 Steel Sprockets, ANSI/DIN standards Module Gears
Motorcycle sprockets Bevel Gears
Stainless Steel Sprockets Customized

###

Contact: Alex Huang/Sales Manager/Transmission Dept.
XIAMEN POWER TRANSMISSION IMP.& EXP.CO.,LTD
Add.:  #19 Bldg, #158, Canglindong Rd, Haicang Industrial Zone, 361000, Xiamen, China.
Branch: Yingbin Rd., Zhuji, Shaoxing, Zhejiang, China
Tel.: 0086-592-5180217
Fax: 0086-592-5559242
Web: xmpower.en.made-in-china.com

drive chain type

Drive chains are used in a variety of industrial applications. Unlike roller chains, which are more efficient in terms of weight and size, drive chains slide on steel guides. Drive chains are often used for dirty work. Here’s what you need to know about the various types of drive chains. In this article, we’ll look at pin chains, engineered steel chains, bushing roller chains, and timing chains. These types are the most common and the most commonly used.

time chain

There are several factors to consider when deciding which drive chain to buy. What matters is how long the chain will last, as the timing chain will stretch over time. However, they are pre-stretched during manufacture to reduce the risk of stretching. Timing chains can also be noisy compared to toothed belt drives, but rails and chain tensioners can alleviate this problem. Timing chains also wear slower than belts, reducing repair costs.
Timing chains require little maintenance compared to belt drives. When well lubricated, timing chains require little maintenance. The only maintenance really required is checking the engine oil level and following the manufacturer’s recommended service intervals. Timing chains of drive chains are also safer than belt drives and can be dangerous if the toothed belt tears. Also, the timing chain only needs minor repairs and replacements. Garages can purchase complete timing chain kits that contain all the parts needed for repairs.
Drive chains can be equipped with roller chains or timing chains, depending on the load on the engine. The style of the timing chain depends on the type of motor used. However, the roller chain is the most common choice due to its high strength and NVH properties. The roller chain has two tabs pressed into the eyes, and two rollers above them. These components work together to improve engine performance.
Many modern vehicles use timing chains. Timing gears synchronize the camshaft and crankshaft so that the valves open and close at the appropriate times. This is critical to the running quality, power output, and fuel consumption of the engine. The timing chain also reduces the amount of pollution emitted by the vehicle. Over the past two decades, many OEMs have turned to time chains for OHC/DOHC engines.
chain

pin chain

Steel pivot chains feature open barrels to reduce blocking and material buildup. These chains are designed for power transmission and transportation applications, often used in agricultural applications. They can be custom welded using specialized accessories. These chains can be used in agricultural, industrial and municipal applications. Here’s a closer look at each. Read on to learn about the benefits of steel pivot chains.
The Long Pitch Class 700 Pivot Chain is a versatile chain for conveying and lifting products. Its T-head pins fit snugly so dust doesn’t get into the pin holes. It is also constructed with a closed bearing structure to prevent elongation due to wear. Steel pivot chains are designed for high fatigue applications and are versatile.

Engineering Steel Chain

Engineered steel drive chain provides maximum power transfer while minimizing weight. Engineering chains are often used for tough oil drilling operations. Designed for durability and tight tolerances, these chains can be used in a variety of industrial equipment. Whether you need to lift heavy objects or store a lot of items, engineered steel chains will do the job. Read on to learn more about the benefits of engineering chains.
Engineered steel chains consist of links or pin joints with large gaps between the components. The material of these chains is designed to handle abrasives. While many of these chains are used as conveyors, some are designed for drives. You can find these chains on conveyors, forklifts, bucket elevators, oil rigs and more. To get the most out of them, they should be able to withstand the power produced by the prime mover.
The chain can withstand high tensile stresses and is ductile enough to withstand fatigue. The center-to-center distance between the chain and sprockets is between 30% and 50% of the pitch. On smaller sprockets, the arc of contact between the teeth and chain must be at least 120 degrees. The resistance of the chain drive depends on the use environment, including vibration, noise, fatigue strength and other factors.
There are many types of engineering steel drive chains, each with a different function. The most commonly used type is the elevator. Its lift mechanism raises and lowers the carriage. Most cranes are attached to the load with hooks. Another type of chain is the oval link. Its links are welded and the sprocket has receivers for each link. It is used in low speed applications for elevators, chain hoists and anchors in offshore operations.

Bushing Roller Chain

Typically, a bushing roller chain as a drive chain consists of two link assemblies. The inner link consists of two plates held together by two sleeves, while the outer link consists of two plates connected by pins that pass through the inner link. However, there are some differences between bushing roller chains. The main difference is the type of link and the amount of lubrication required. If you want to learn more about bushing roller chains, keep reading.
While roller chains are generally stronger and more durable than bushing chains, they are not immune to wear. During the driving cycle, they lengthen and undergo a process called articulation. The rate at which they elongate depends on the lubrication and load applied to them. The frequency of pin and bushing articulation is also critical. Like other wear parts, the manufacture of critical wear parts requires close attention to detail to ensure optimum performance. Correct raw material selection, part fabrication, and assembly are key factors in achieving optimum performance. Improperly prepared parts can affect wear life and performance.
Consider your application and load distribution when selecting a bushing roller chain as your drive chain. The length of the chain must be between 30 and 50 times its pitch. The arc of contact between the small sprocket teeth must be at least 120 degrees. The resistance of the drive chain depends on the usage environment, which will determine its fatigue strength and vibration level. It’s a good idea to check the chain length before deciding to replace it.
chain

flat top chain

The TSplus flat top drive chain is the most flexible conveying medium on the market today. They can be connected end-to-end to create extended conveyor lines. The side bend design allows it to be used with a variety of conveyor types including inline, snake, and carousel conveyors. These chains are available in a variety of sizes, ranging in width from 3 feet to 20 feet.
A variety of materials are available for flat-top chains, including steel and plastic. Steel chains are ideal for applications requiring wear resistance. They are sturdy and well made. Plastic chains are particularly durable, but not suitable for harsh environments. Stainless steel flat top chains are suitable for a variety of applications, and some manufacturers make them from stainless steel or even aluminum. If your application requires a durable flat top chain, choose a chain made from iwis hardened stainless steel.
Another type of flat-top drive chain is the side bend chain. Suitable for flexible machinery requiring efficient conveying. It is equipped with a single hinge pin or double hinge pin. Either option will do, but each hinge pin has its advantages. Single hinge pin chains are suitable for smaller light-duty conveyors, while double hinge pins are more suitable for medium and heavy-duty applications.
CZPT is a modular flat top chain conveyor system. Its standardized components and modules can be easily integrated into any production process. And because it’s a single track, you can lengthen or shorten it as needed. Its versatile design makes it compatible with other conveyor systems such as belts and sprockets. This monorail modular design allows system lengths up to 40 meters and is compatible with other conveyor systems.

China Motorcycle Heavy Duty Type Precision Roller Chains ANSI/ISO Standard     steel bush chainChina Motorcycle Heavy Duty Type Precision Roller Chains ANSI/ISO Standard     steel bush chain
editor by czh 2023-01-07