Excavator Bulldozer Sprocket Drive wheel Undercarriage Parts 4V4107 7K2514
The sprockets are first molded or forged and subsequently processed, giving them a special heat treatment. If steel does not contain sufficient quantities of carbon, then it becomes brittle during the hardening process. If only the surface is hardened, then the sprocket or segment will wear very fast over time. Therefore the sprocket teeth are hardened by means of induction hardening. FRJX segments are forged with precision, finished and hardened under special conditions.
Sprockets and segments, also known in the branch as cogwheels, run between the excavator or bulldozer chain links. Moreover, this undercarriage component runs over the bushing that connects the two links of a chain. The cogwheel is installed around the machine’s drive gear and only serves to drive the chain, so it does not bear any of the machine’s weight.
THE DIFFERENCE BETWEEN SPROCKETS AND SEGMENTS
Sprockets are metal cogwheels that consist of a metal inner ring with bolt holes or a compression hub and a gear ring in one unit. Sprockets can be screwed on directly, or pressed onto the machine’s drive hub, and they are usually used for excavators.
Just as sprockets, segments also consist of a metal inner ring with bolt holes and a gear ring. Unlike sprockets, segment groups exist from individual segments which make up the sprocket for the undercarriage of bulldozers. This means that the segments can be exchanged without dismantling the track link.
HOW CAN YOU RECOGNISE THE WEAR PATTERNS OF SPROCKETS AND SEGMENTS?
Sprockets and segments should always run in line with the chain’s pitch. If the sprocket or segment is worn, the points of the gear ring will become sharp. This is because there is play between the pins and the bushings. Another common wear pattern for sprockets and segments is the lateral wear. This is caused by (among others) worn chain guides, a twisted undercarriage, or poor guiding of the front wheel. It can also be caused by the filtration of hard materials between the bushings and the cogwheel, or by incorrect alignment. To limit wear from the infiltration of soil (packing), we make sand notches in our sprockets.
FAQ:
1. You are a trader or a manufacture?
We are an industry and trade integration business, our factory located on Quanzhou Nanan Distric, and our sales department is in City centre of Xiamen. The distance is 80Kms, 1.5 hours.
2. How can I be sure the part will fit my excavator?
Give us correct model number/machine serial number/ any numbers on the parts itself. Or measure the parts give us dimension or drawing.
3. How about the payment terms?
We usually accept T/T or Trade Assurance. other terms also could be negotiated.
4. What is your minimum order?
It depends on what you are buying. Normally, our minimum order is one 20' full container and LCL container (less than a container load) can be acceptable.
5. What is your delivery time?
FOB Xiamen or any Chinese port : 20 days . If there are any parts in stock , our delivery time is only 0-7 days.
6. What about Quality Control?
We have a perfect QC system for the perfect products. A team who will detect the product quality and specification piece carefully, monitoring every production process until packing is complete, to ensure product safety into container.
EMAIL:mei-hua-1985@163.com
Quanzhou Fengrui Machinery Co., Ltd
Quanzhou Fengrui Machinery Co., Ltd is a modern industry and trade
integrated enterprise specializing in the R&D, manufacturing,
and sales of construction machinery components. The company is loed
in Quanzhou City, Fujian Province, the starting point of the
"Maritime Silk Road" in the Golden Triangle of Southern Fujian,
with very convenient transportation. The company mainly produces
various types of excavators and bulldozers' supporting wheels,
carrier rollers, drive wheels, guide wheels, rail chain assemblies,
frames, various hydraulic cylinders, shafts, sets of high-strength
bolts, gears, and other mechanical components. Bori Machinery has
first-class production equipment and advanced testing methods in
China, adopts advanced technology, and relies on reliable quality,
rich varieties, reasonable prices, and good reputation. Its
products are sold well throughout the country, and are exported to
Europe, the United States, the Middle East, and Southeast Asia.
Looking forward to the future, Brilliant Trading will continue to
improve its production and competitiveness, and improve its sales
service network based on its existing foundation. On the basis of
"quality based, honesty based, mutual benefit, and common
development", we have established long-term and good business
partnership with global economic and trade professionals. Through
the implementation of brand strategy, we will explore the future
with high quality, build Borui Trade into a stronger brand for
manufacturing engineering machinery parts, and provide customers
with faster and better services. Warmly welcome new and old
merchants from home and abroad to come, call for consultation,
negotiate, and work together to create a better future!
