The thrust roller bearing is used to bear axial and radial joint loads as the main axial load, but the radial load should not exceed 55% of the axial load. Compared with other thrust roller bearings, this kind of bearing has a lower friction factor, higher speed and a heart regulating performance.
The rod of the 29000 type bearing is an asymmetrical spherical roller, which can reduce the relative slipping of roller and raceway in operation, and has many advantages such as long roller diameter, large diameter, large number of rollers and high load capacity. Usually, oil lubrication is used, and grease can be lubricated at some low speed. In the design and selection, it should be selected first.
Thrust Roller Bearing,Small Thrust Bearing,Mini Thrust Ball Bearing,Thrust Needle Roller Bearing LUOYANG AUTO BEARING CO.,LTD , https://www.ballbearing.nl
1. Basic composition of solar LED street lamp system The solar LED street lamp lighting system consists of solar cell module parts (including brackets), LED light source, control box (with controller, battery) and lamp pole; solar panel light The efficiency can reach 127Wp/m2, the efficiency is high, and it has very good wind resistance. The lamp part is integrated with a 1W white LED and 1W yellow LED integrated on the circuit board as a plane light source.
The control box body is made of stainless steel, beautiful and durable. The maintenance-free lead-acid battery and charge and discharge controller are placed in the control box. The solar LED street lamp lighting system uses a valve-regulated sealed lead-acid battery, which is It is called maintenance-free battery, which is beneficial to reduce maintenance costs. The charge and discharge controller is designed with proper functions (with light control, time control, over charge protection, over discharge protection and reverse connection protection) and cost control. High cost performance.
2. Simple working principle The solar cell module system is simple in operation, and the solar panel is made by using the photovoltaic effect principle. During the day, the solar panel receives solar radiation energy and is converted into electric energy output, and is stored in the battery through the charge and discharge controller. At night, the illuminance gradually decreases to about 10 lux, and the solar panel open circuit voltage is about 4.5 V. The charge and discharge controller detects this voltage value and then operates. The battery discharges to the lamp cap. After the battery discharges for 8.5 hours, the charge and discharge controller operates. At the end of the discharge, the main function of the charge and discharge controller is to protect the battery.
The 80000 type thrust Cylindrical Roller Bearing, the 90000 type thrust cone roller bearing and the AXK type thrust roller Needle Bearing can withstand the uniaxial axial load, which is much larger than the thrust ball bearing's axial load capacity, and has large rigidity and occupies small axial space.
Thrust cylindrical roller bearing and thrust cone roller bearing are suitable for low rotational speed, and thrust cone roller bearing speed is slightly higher than that of thrust cylindrical roller bearing. The thrust cylindrical roller bearing is a separable bearing. It can only withstand one-way axial load and slight impact, and can restrict the axial displacement of the shaft (or shell) in one direction, so it can be used for unidirectional axial positioning. But its bearing capacity is far greater than that of the thrust ball bearing. When roller is rolling, the roller will inevitably slide on the raceway because of the different speed of the two ends of the roller. Therefore, the limit speed of this kind of bearing is lower than that of the thrust ball bearing, which is usually suitable for low speed operation.
The standard design of thrust cylindrical roller bearing adopts a metal solid cage. According to the requirements of the user, other types or materials can be used. The thrust Tapered Roller Bearing can only bear one direction axial load, which can limit the unidirectional axial displacement of the bearing, so it can be used as a one-way axial orientation. Compared with the thrust cylindrical roller bearing, the bearing capacity is large and the relative sliding is small, but the limit speed is low.
