TIMKEN installed method of cylindrical roller bearing

Installation method: using a tight fit inner ring, installed method depends on the bearing is a straight hole or a tapered hole. Then install the lock washer and lock nut or clamping end cover, so that the bearing fixed upon the shoulders of axle gear bearing gradually cools, tighten the lock nut or clamping end cover outer ring rotates, it with the bearing should be tight fit, can expand the bearing heating complete installation in figure 10 shows the oil bath method. Bearing methods should not be direct contact with the heat source is placed a few inches from the bottom of the tank cars, with little support piece of cars with bearing model separated bearing must be near away from any high temperature heat source, prevent the bearing temperature is too high and led to the decrease of the bearing ring hardness. Often use flame heating. If it is best to use the automatic temperature control equipment safety regulations banning the use of open hot oil bath, you can use 15% of the soluble oil/water mixture. This highest mixture can be heated to 93 ° C, and will not produce the flame thermal expansion method, most applications need to be installed straight hole bearing shaft USES the interference fit to bearing heating so that it has expanded enough to easily slip along the axis neck, can easily complete the installation usually takes two heating methods: - Thermal heating - tank Induction heating the first approach is to put the bearing into the hot oil with high flash point of the heating oil temperature cannot exceed 121 ° C, most of the application of 93 ° C is sufficient bearing heating should be 20 or 30 minutes, or until it is enough to easily slide into journal can use induction heating to install bearing induction heating process soon, so we must pay special attention to prevent more than 93 ° C temperature usually require heating experimental operation, to grasp the correct heating time, according to a fixed melting temperature wax that can be used to measure the bearing temperature after heating, bearing should guarantee to block vertical bearing on the shoulder and fixed until cool. Thermal expansion technique is bearing cars is supported by lift at the bottom of the lubricating oil bearing block flame heating don't use the steam or hot water to clean the bearing, otherwise it will cause rust or corrosion. Don't put the bearing surface on the flame heating. Bearing heating does not exceed 149 ℃ ( 300°F) 。 Warning before heating components, please clean up the oil or rust inhibitor, prevent fire and smoke. Note do not comply with the following warning information may result in serious personal injury. Lever pressing method is usually used in small size bearing an optional installation method, it is to press the bearing to the shaft and bearing seat. This method requires an arbor press and a sleeve installation, as shown in figure 11 install the sleeve should be made from mild steel, inner diameter should be slightly greater than the shaft diameter can't install the sleeve diameter than timken. Com/catalogs 'Timken® Catalog of spherical roller bearing, Order no. 10446 c) Given in the axle gear shoulder diameter. Installed at both ends of the sleeve should be vertical, the need to thoroughly clean both inside and outside surface, and the sleeve should be long enough, to ensure bearing sleeve ends after installation is still longer than end if the outer ring fitting to the bearing seat, the installation of pipe diameter should be slightly less than the inner diameter of the bearing. Diameter not less than the timken. Com/catalogs 'Timken® Self-aligning roller bearing selection guide '( Order no. 10446 c) Shoulder of the proposed bearing block diameter on the shaft of light oil daub, reduce pressure into tight fittings needed to install the bearing carefully on the shaft, and make sure it with the centerline of shaft vertical by the stable pressure lever lever, stay close to make bearing solid shaft or the bearing block of the shoulders.