Needle thrust roller bearings are low-speed precision components used in the industrial field to withstand axial loads.Including multiple series such as NTB, AS, WS, GS, AXK, etc., with shaft diameters covering the range of 10-85mm. Its core structure consists of a retaining frame, a needle roller assembly, and a positioning ring. By designing symmetrical bearing groups, the rated speed can be increased by 100%. This product is widely used in fields such as automotive transmissions, power tools, fitness equipment, etc. It has the characteristics of small size, high bearing capacity, and optimized oil storage space.
The cage pocket holes are designed with equal angular distribution.And a drum shaped groove is set in the middle section to embed lubricating grease.Forming a self-lubricating system. The WS/GS series adopts a separate design of the seat ring and shaft ring.Allowing the bearing to produce ± 0.5 ° deflection compensation under axial load, adapting to shaft alignment deviation. Needle thrust roller bearings are used to bear axial and radial combined loads mainly.But the radial load shall not exceed 55% of the axial load. Compared with other thrust roller bearings, this type of bearing has a lower friction coefficient, higher speed, and has self-aligning performance.
Because needle thrust roller bearings are high-precision products.Improper assembly can easily cause damage to the groove of the thrust roller bearing.Resulting in damage to the thrust roller bearing. The needle thrust roller bearing should have a dedicated mold during assembly and cannot be knocked randomly. When pressing the shaft, only the small ring can be subjected to force.And when pressing the large ring, only the large ring can be subjected to force. During assembly, it is required to use air pressure or hydraulic pressure. The upper and lower molds should be in a horizontal state during press fitting. If there is any inclination, it will cause damage to the groove of the thrust roller bearing due to force, resulting in a rattling of the thrust roller bearing.
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