China 15.520mm natural freshwater rectangular pearl pendant gold plated stainless steel chain necklace roller chain bolt

Model Quantity: NL2106039
Jewelry Major Content: PEARL
Substance Type: Freshwater Pearl
Pearl Type: Freshwater Pearl
Gender: Children’s, Men’s, Unisex, Women’s
Primary Stone: PEARL
Jewelry Kind: NECKLACES
Necklaces Kind: Beaded Necklaces
Occasion: Anniversary, Engagement, Reward, Get together, Wedding, Dating
Certification Kind: Third Party Appraisal
Chain Sort: Strand
Shapepattern: Other
Type: Vintage
Inlay engineering: Circling placing
Material: freshwater pearl
Dimension: 15.5*20mm rectangular pearl,4.5*8mm O shape chain,12mm sHangZhou accent
Size: 46.5cm
Shade: white
MOQ: 5pcs
OEM: of course
Sample time: 3-5days
Shipping time: 7-30days
Excess weight: fourteen.5g
Packaging Specifics: 1. each and every piece of pearl necklace packed in a little polybag 2. thirty or fifty parts of pearl necklace packed in a bigger polybag 3. two hundred or 300 items of pearl necklace packed in a carton/ typically the dimensions of the carton is 30*thirty*30cm

Merchandise name: 15.5*20mm normal freshwater rectangular pearl pendant gold plated stainless metal chain necklace
Material: freshwater pearl Specialist automated CA-1530 CZPT wood cnc router automobile device changer wooden router for panel furniture cabinet door
Dimension: fifteen.5*20mm rectangular pearl,4.5*8mm O form chain,12mm sHangZhou accessory
Excess weight: fourteen.5g
Size: forty six.5cm



freshwater pearl
Merchandise No.
white of pearl necklace
46.5cm of pearl necklace
five parts
Grade(high quality ) :
Large good quality content+ Outstanding Techniques
Nickel free and direct free, a lot more than eighteen many years wealthy experiences
Poly bag/Jewelry Pouch/ Jewellery Box
Tailored packing: Can incorporate symbol, images and so forth all by your request
Shipping time
Sample: Within 2 months 1~3days if in inventory
Mass Generation: 7-thirty days
one.DHL/Fedex/UPS/TNT/EMS/Airmail, any ask for come to feel cost-free to make contact with me
2.Ship by Sea: Reduced shipping and delivery cost and gradual delivery (fifteen-thirty days is dependent). Appropriate for massive quantity and non-urgent shipping.
Payment phrase
1.Lender transfer/ Paypal/ Western union/ Alipay
2.Phrases of Payment: EXW, FOB ZheJiang
3.The customer is dependable for delivery price

Numerous colors and styles are accessible.

Organization Data
Our ServicesWhy Decide on Daking?

  • Alibaba’s ninth Calendar year Gold Dependable Provider
  • Much more than 20 a long time experience in production and exporting jewellery
  • One-cease-store for style, Metal Fabrication CNC Machining Customized Manufactured stainless steel action shaft manufacture, export fashion jewellery
  • Offer you the most affordable ex-manufacturing facility charges
  • Good high quality manage for each and every item
  • Produce hundreds of new designs every single month
  • Outstanding designers hold you up-to-day on the most recent traits
  • Professional and secure packing for every cargo
  • Supply a wide range of shipping and delivery techniques at the most aggressive cost
  • Well timed supply
  • Very good right after-product sales support
  • Retailer, wholesaler, boutique proprietor, broker, jewelry customer all welcome!

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    Packaging & Shipping


    Advantages and disadvantages of roller chains

    If you need to lift heavy objects, you should know how to use a roller chain. Its simple design and simplicity make it ideal for a wide range of applications. This article will discuss the advantages and different types of applications of roller chains. After reading this article, you will be able to choose the type of roller chain that best suits your specific needs. In the next section, we’ll discuss how to deal with it.

    Put on

    How to measure the wear of a roller chain? There are several methods available, but the most accurate is to use a wear gauge kit. The CZPT Chain Wear Indicator Kit measures chain elongation. Compliant with ANSI and British Standards, this tool is critical to the industry chain and can help you determine when replacement is required. Improper chain maintenance can cause equipment to slip or perform poorly, resulting in unnecessary downtime.
    In addition to measuring the elongation of the roller chain, it is also possible to measure the pitch of the rollers. This measurement represents the ANSI #80 standard for roller chains. Vernier calipers can also be used to measure the pitch of chains. This tool is very useful and also acts as a bottle opener. You can even use it as a wear gauge. This way, you can determine if the roller chain needs to be replaced.
    The wear resistance of a roller chain can extend its life by 10% or more. However, proper lubrication and general maintenance are essential to ensure the longest lifespan of your chain. The manufacturing process of a roller chain assembly also plays a crucial role in determining its service life. For longer life, you might consider purchasing a heavy-duty series roller chain with thicker side plates and longer pins. If you need greater working load capacity, you can also consider heavy-duty chains.
    High-quality components are critical to the longevity of the roller chain. High-quality roller chain components require precise heat treatment processes. The use of proprietary steel allows the company to manufacture more durable drums. The pins are manufactured to tight tolerances and then undergo a centerless grinding process. This process removes any surface defects, resulting in a mirror finish on the pins. The uniformity of this surface finish also ensures that the load is evenly distributed on the pins, extending the life of the chain.


    Among the materials used in roller chains, carbon steel and alloy steel are the most common. However, stainless steel is used in food processing equipment and applications that require lubrication. Other materials used for roller chains include nylon and brass. For more information, see the USACE Material Specification Sheet for more information. You can also find information about the performance of a roller chain by its design. But before choosing one of these materials, consider its pros and cons.
    Stainless steel is an excellent choice for roller chains. It is corrosion-resistant and can operate in extreme temperatures without cracking. Stainless steel is a non-magnetic material that can operate in a temperature range of -200 degrees to +700 degrees Fahrenheit. In addition to its corrosion-resistant properties, stainless steel can withstand a variety of environments and can be used in heavy-duty applications. The MEGA series is the strongest stainless steel roller chain in the world.


    As the name suggests, a roller chain has 5 basic components: pins, bushings, rollers, and pin chainplates. These components are precision engineered to ensure optimum performance and durability. Typical applications include drives and conveyor belts. The various components of the roller chain can be customized to specific needs. Read on to learn more about how these parts work together. This article presents the advantages and disadvantages of different types of roller chains and discusses their applications.
    A roller chain is a form of chain drive consisting of short cylindrical rollers connected together by side links and gears called sprockets. While these devices are simple, they have some limitations. In most cases, sprockets must be designed with a maximum tensile load on one tooth to prevent premature chain failure. Therefore, these chains are less efficient than belt drives with higher inertia.
    Roller chains are usually made of carbon or alloy steel, although stainless steel is often used where food processing machinery and lubrication are problematic. Sometimes, nylon and brass are used. The maximum running speed of the roller chain is important for some applications, but it also provides economic benefits for users and manufacturers. The maximum running speed of a roller chain is usually governed by a wear limit, which can vary by application.
    The global roller chain market is expected to grow at a CAGR of over 5.4% over the next six years. The research report covers the competitive landscape and key factors influencing the market. The report also analyzes the growth potential, product utilization, and pricing models of key vendors. It also covers the SWOT analysis of the key players in the industry. The study provides a comprehensive market analysis of all these factors and more. It also highlights key players and their strategies and identifies the fastest growing regions for their products and services.


    Because rollers are exposed to a variety of environments, including snow, rain, and muddy roads, regular maintenance is required to prevent damage. Because they must encounter these elements frequently, frequent inspections are important to prevent rust and other damage. Also, avoid pouring acidic or alkaline cleaning products on the roller chain. Instead, use hot water with hand sanitizer or a disposable toothbrush to clean the rollers. Washing the chain directly with water has little effect.
    For small rollers, the workload during the break-in period should not be too large, otherwise, it will cause overheating. The small drum should also be inspected frequently for any unusual appearance, which may indicate that the system is not functioning properly. In this case, the operation must be suspended. Failure to do so could result in serious injury or a facility fire. Additionally, a properly lubricated roller chain is essential to ensure long-term performance.
    The surface of the roller is often rusted and scratched. Over time, these little scars can spread to the drive, damaging it. Also, the chain may not be properly spaced and timed. Therefore, it is very important to check regularly to ensure that the chain is in top condition. When the chain wears to 3% or more, the entire roller chain needs to be replaced. Failure to do so may damage the drive, the roller sprocket, or the entire chain.
    Given the chain’s processing environment, lubrication is critical to its performance. If the chain is lubricated, it must be re-lubricated frequently. However, lubricated roller chains are susceptible to contamination, especially in the biomass industry. In these environments, airborne organic particles and debris from the biomass industry can contaminate lubricated roller chains. This is why maintenance is important for lubricating roller chains.


    The benefits of preloading roller chains are well documented. In general, preloading eliminates the initial elongation of the roller chain, increasing its service life. Preloading is an effective way to achieve this, and a preloading chart can help illustrate the benefits of this process. Chains with little or no preload will stretch significantly during drive start, while chains will stretch rapidly as the surface hardness of the wear parts increases. Additionally, a properly preloaded chain has little or no elongation during the initial start-up of the drive, extending wear life.
    Premium manufacturers apply the preload concept during their production phase, aligning all major components at the same time. This approach helps eliminate elongation issues that lead to rapid degradation of the roller chain. If this is not checked, the chain drive will stretch immediately over time. To avoid these problems, it is important to purchase a high-quality preloaded roller chain from a reputable source.
    The heat treatment process is an effective way to prevent excessive wear of the roller chain. Heat treatment is a complex process that takes place in a factory during manufacturing. This process helps the rollers maintain high hardness and depth, preventing breakage. When buying a roller chain, make sure that the chain is heat treated and that the chain is manufactured to a high degree of precision. It also ensures that the product can be used for a long time.
    In addition to performance benefits, preloading can also reduce initial elongation. A preloaded roller chain will exhibit near linear elongation, whereas a non-preloaded chain will experience rapid elongation. Therefore, they will reach the recommended 3% elongation earlier. Make sure the chain is properly lubricated. Also, consider how the chain is arranged. This is critical for optimal longevity.

    China 15.520mm natural freshwater rectangular pearl pendant gold plated stainless steel chain necklace     roller chain boltChina 15.520mm natural freshwater rectangular pearl pendant gold plated stainless steel chain necklace     roller chain bolt
    editor by Cx 2023-07-04

    toothen chain

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