Whether the device of Timken imported bearing is correct; It affects precision, longevity and function Therefore; The description and assembly of Timken imported bearing devices should be fully discussed It is expected that the installation will be carried out in accordance with the operating specifications The items of operation specification are generally as follows:
. 1) Check the dimensions and finishing conditions of relevant parts,
. 2) Device,
. 3) Supply smoothing agent
. 4) Remove Timken imported bearing and bearing related parts,
. 5) Check after installing Timken inlet bearing,
Expect to be in front of the device; Just opened the bearing package Smooth oil; It is not usually removed; But; Timken imported bearings for instruments or high speed; Wash with clean oil; Remove the rust inhibitor applied to Timken inlet bearing Usually smooth grease; Do not clear; Directly fill with smooth grease also; Timken imported bearing sealed with smooth grease; Direct application without removal Bearings with rust inhibitor removed; Easy to rust; So you can’t leave it alone
Usually there are many gaps and cooperation; The outer ring has interference; Usually press in with a press; Or there is also a cooling shrinkage method of the cooling device Use dry ice as coolant; Occasions of cold shrinkage cooperation device; Moisture in the air will condense on the surface of Timken inlet bearing So; Proper rust prevention methods are required
Installation method of Timken imported bearing; It varies according to bearing layout, cooperation and conditions; Usually; Because most of them are shaft rotation; Therefore, the inner circle needs interference cooperation Taper hole occasion; Directly installed on the taper shaft; Or use a sleeve device Timken imported bearing with cylindrical hole; Press in with multi-purpose press; Or use hot charging method
Water lubricated bearings are divided into phenol bearings, rubber bearings, ceramic bearings, graphite bearings, PTFE and other polymer bearings. The bearing is used directly in water without any sealing device. The bearing is lubricated by water and does not need lubricating oil or grease, eliminating the harm of water pollution. Bearings are often used in flowing water, which can effectively control the bearing temperature rise, so as to have long service life, safety and reliability.
It is mainly used for large industrial water pumps, power plants, nuclear power plants, ships, water turbines, wind power generation, petrochemical industry, light chemical and food machinery, sewage treatment, waterworks, water conservancy pump stations, mining machinery and engineering machinery, valves, mixers and other fluid machinery.
Bearings with water as lubricant are generally sliding bearings. Babbitt alloy used in early water lubricated bearings has long been used in the field of ships, because water can provide hydrodynamic film under certain conditions. Water lubricated bearings are based on self-lubricating materials and combined with the lubricity of water under certain conditions, so as to be used in hydropower stations and other fields.
Water does not have the same high viscosity and lubricity as the recognized lubricant petroleum. Water does have limited viscosity and density, so it can provide hydrodynamic membrane. The research and development of superior water lubricated bearings will be based on materials and design, which should have good self sliding and excellent friction resistance.