No.1 Needle Roller Bearing Description:
The NA4900 needle roller bearing from Linqing City GaoYuan Bearing Co., Ltd is a high-performance component designed for heavy-duty applications. It utilizes small cylindrical rollers to reduce friction and support radial loads efficiently. Compared to ball bearings, needle bearings offer a larger contact area with the outer race, which enhances load distribution and reduces wear. They are also more compact due to minimal clearance between the shaft and the bearing, making them ideal for space-constrained environments.
These bearings typically consist of a needle cage that holds and guides the rollers, along with an outer race or housing. Radial needle bearings are used in rotating systems where the load is applied perpendicular to the axis, while thrust needle bearings handle axial loads. Full-complement designs feature solid inner and outer rings with rib-guided rollers, offering maximum load capacity and durability in compact setups.
No.2 Needle Roller Bearing Pictures Show:
No.3 Delivery Details:
Our NA4900 needle roller bearings are available in various packaging options, including single box, carton, and wooden tray, ensuring safe and secure delivery worldwide. We cater to major markets such as Europe, America, and Southeast Asia, and our products are manufactured in Japan under strict quality control. With the HS code 8482102000, these bearings are suitable for international trade and meet global standards. Whether you're looking for reliable performance in automobiles, trains, or tractors, the NA4900 is a top choice from trusted brands like IKO, NSK, SKF, and THK.
Hot Melt Adhesive For Paper Packaging
Shipping cartons must be able to withstand temperature, humidity changes and rough handling, but the use of tape is more difficult to meet this requirement, because of its poor bonding strength, low tensile strength, and for coated or oily cardboard is not strong.
The hot melt adhesive has a good bonding force with the wet material, strong penetration, and plays a physical and chemical bonding role between the corrugated paper and the lined paper board. The overall strength of the carton after bonding is enhanced, and the carton is not easy to deform and crack. In addition, the hot melt adhesive coating system can be applied to a variety of different shapes of the key parts, such as: carton folding lid.
Second, the low temperature resistance of the self-adhesive tape is poor, in the cold climate in the north, easy to open the glue; Hot melt adhesive has good low temperature resistance, can withstand -40℃ low temperature. Moreover, the storage period of hot melt adhesive is up to 2 years, the storage area is small, and there is no special storage requirements; The validity period of tape storage is only half a year, and certain storage conditions are also required, otherwise it is easy to deteriorate.
Hot melt adhesive also provides a good anti-theft function, as the adhesive penetrates into the corrugated, any attempt to open the carton will tear the fibers. The tape can be cut with a knife, unknowingly removing the contents and sealing them again.
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Shenzhen Tongde New Materials Technology Co., Ltd. , https://www.tdhotmeltglue.com