4, the characteristics of tapered roller bearings are separable bearings, the bearing outer rings have a tapered roller, the roller is round-shaped. Roller and the raceway is in line contact, can withstand heavy radial and axial joint load, it can withstand pure axial load. Longgang larger the contact angle PCB V cutting machine bearings, the higher the axial load carrying capacity. Tapered Roller roller should be designed so that the inner and outer raceway contact line intersect at the same point after extended in order to achieve pure rolling on the bearing axis. The new design of tapered roller bearings used to strengthen the structure, the roller diameter increases, the roller is lengthened, increasing the number of sub roll, using crowned roller, the bearing capacity and bearing fatigue life improved significantly. Between the roller large end and spherical and cone large rib contact improves lubrication. This kind of bearing according to the number of columns loaded roller can be divided into single row, double row and four-row tapered roller bearings, such as different types of structures. These bearings are also more use of British products. Install a thrust bearing thrust bearing and shaft is generally comprehensive transition fit, with the race and the bearing hole is generally clearance fit, so the bearing is easier to install Baoan PCB V cutting machine bearings, thrust bearings in bi axle shaft bearing spring should be fixed in order to prevent the shaft to rotate relative to Bearing installation method, under normal circumstances is the case of the rotation axis of the majority, and therefore with the axis of the inner ring and had to win with, with the bearing outer ring and bearing housing clearance fit. Fourth, check the installation of five bearing lubricant added high-speed precision angular contact ball bearing installation: High-speed precision angular contact ball bearings manhole PCB V cutting machine bearings, mainly for high-speed rotating light load situations requiring high bearing precision, high speed, low vibration and low temperature rise limited life. Often high-speed spindle bearing installed in pairs, the inner surface grinding machine spindle speed key component parts. The main technical indicators: 1. Bearing precision index: more than GB / 307.1-94 P4 level precision 2. High-speed performance: dmN value of 1.3 ~ 1.8x 106 / min 3. life (average):> 1500 h high-speed precision angular contact ball bearing life of a great relationship with the installation, Longgang PCB V cutting machine bearings, bearing Electrical Shun GF (certified), bearing is provided by Shenzhen-bearing Electrical Co., Ltd., Guangdong Development. Shenzhen City, Guangdong Development Bearings Electrical Co., Ltd. (www.sgfzc.com) (www.sgfzc.com) is Shenzhen, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In bearing Electrical leadership Shun GF staff warmly welcome all inquiries negotiations to create Shun GF bearing Electrical better future.