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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
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
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