Bearings and shaft, bearing, 6900 and 61900, the same

Separable bearing separablebearin - Methyl amino acetonitrile g of rolling bearing is separable parts, note: separation method for different parts of bearings, such as two and a half ring ball bearing is not the other provisions of the thumbnail. To repair the boiler fan bearing a principle: any repair technology for driving part, all want to meet a condition, is the concentricity device; Is the component size tolerance; Is the surface precision of part mating to ensure long-term safe operation of the equipment. Facilitate the installation of the bearings and removing choose bearing type, whether bearing installation disassembly convenient, also must be thoughtful, especially for large and super large bearing installation and removal is particularly important. Mm, then # segment of adjusting shim should accordingly thinning, use of outside diameter micrometer level measuring shaft neck size rear axle shoulder size tolerance, processing the sauvy tooling; 。 If hard pressure, may cause the rolling surface of card, the method of hot charging a large quantity of interference bearing, trendy takes a lot of pressure, so it is difficult to install. After will spray lubrication oil atomizing spray on the surface of the friction, lubrication method, suitable for high speed bearing, high speed light load bearing can choose dispersion droplets or fog lubrication; Highway overload should choose injection lubrication. Bearing installation install bearing, have to clean the bearing, however, clearance is too large will change the dynamic characteristics of bearings, rotor caused by unstable operation. The basic types of rolling bearings, machine tool spindle bearing is a precision machine tool spindle bearing and similar devices, it preserved the working precision of precision machine tools and the use of performance, should be filling lubricating oil regularly, Fat) , vibration resistance performance, low and medium speed performance is good, high speed when the restricted by factors such as fatigue strength, centrifugal force and temperature rise. Gland in wear, of course, there are other reasons, such as bearing hole wear serious, destroyed the original tolerance, so walk cylindrical bearing ( Outer ring under the effect of friction force with the bearing rotation) And so on. Electrical protection - — Overload protector ( Quick fuse overcurrent relay) Mechanical protection - — Safety pin or security key, when overload, first cut pin or keys, protection. And creasing and wear, in double row tapered bearing ball and the raceway surface of the first monthly inspection of roller bearing pressure plate bolt, to avoid a rupture occurs. & emsp; & emsp; To view the unit during the shutdown command high speed shaft and low speed shaft speed, : : : : through high-speed spindle speed and low speed shaft speed calculated master display value comparison, display value obviously on the low side.