Safe and reliable/ High efficiency/ Needle Roller Bearings
Product details
A needle roller bearing is a special type of roller bearing which uses long, thin cylindrical rollers resembling needles. Ordinary roller bearings' rollers are only slightly longer than their diameter, but needle bearings typically have rollers that are at least four times longer than their diameter. Like all bearings, they are used to reduce the friction of a rotating surface.
Compared to ball bearings and ordinary roller bearings, needle bearings have a greater surface area in contact with the races, so they can support a greater load. They are also thinner, so they require less clearance between the axle and the surrounding structure.
Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes
About us
Hebei zengshan Intelligent Science and Technology Co., Ltd. is a professional manufacturer of CNC machine tools, paper tube equipment, paper making machine, corrugated box equipment, and coating machine. In 1990, we jointly produced textile bobbins and spiral bobbins with Taiwan Haoli company. In 1992, we developed and launched a complete set of semi-automatic cone tube and spiral tube equipment. With advanced processing technology, processing means and excellent product quality and perfect service, our products are sold to all parts of the country.
In 2006, on the basis of absorbing foreign advanced technologies such as Germany and South Korea, qzd-68 full-automatic cone paper tube production line was developed and developed. The machine adopts the new technology and new technology of Mechatronics to realize the production of low labor, low energy consumption, high efficiency and high quality cone paper tube.
In 2012, through communication and discussion with many customers at home and in combination with international advanced experience, the original equipment was improved and promoted, and a new full-automatic cone paper tube production line zsz-2012 was launched, further improving the utilization rate of raw materials, which was unanimously recognized by customers.
We have nearly 30 years of experience in machinery manufacturing and processing. We have nearly 20 years of experience in the production of paper tube and bobbin. We provide you with a complete set of excellent equipment and rich industrial experience. Quality is like a mountain, reputation is like a mountain, commitment is like a mountain!
Our services:
1. We will assist you to design the most suitable plan and production process for you. Our whole set of equipment is complete in the factory.
2. Our machines are manufactured in accordance with international quality standards. After assembly, they still need to pass the strict inspection of professional process. We firmly believe that this is us The fundamental reason why products are always popular and trusted by users.
3. Long term continuous technology and experience exchange and timely parts guarantee are also our services. We don't just sell you machines, we want to be your students.
We do everything not only to improve the quality of our machines, but also to improve the quality of your products.
Product advantage Hebei zengshan Intelligent Science and Technology Co., Ltd.,Ltd focus on high level equipment manufacturing;supported by digit control and industrial automation technology. We encourage our engineering staff to be creative at all times. High quality, rare equipment includes fully hydrostatic, digit-milling machine TK6918*120 and gantry,digit-control boring-milling machine XK2750*220, which can guarantee our high quality manufacturing. Science and technology is the first productivity. The design team is the core of modern enterprise. We have 7 senior technician and the team have nearly 20 national intellectual property patents (includes 4 invention patents)and it is still growing. Our managing team has more than 20 years experience, which guarantee us the continuous development. We focus on high-end products, highest standard of this industry. To be the best is our goal forever.
Main product Bearing
Paper cone machine
Paper tube machine
Corrugated carton machine
Paper cone making machine
Fireworks paper cone machine
Textile paper cone machine
Parallel paper tube making machine
ZK-24 Gantry type drilling and tapping machine
High speed gantry type CNC drilling machine
CNC boring and milling machine
Intelligent production line
Manipulator
Robot
Audited Supplier 
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