How to distinguish the stand or fall of non-standard deep groove ball bearing manufacturing conditions

How to distinguish the stand or fall of working condition of non-standard deep groove ball bearing manufacturing source: bearing | last updated: - 2020 08 - 7 how to distinguish the stand or fall of non-standard deep groove ball bearing manufacturing conditions a: deep groove ball bearing condition how, directly affect the performance and fuel economy of vehicles, analysis of 6 kinds of deep groove ball bearing conditions now simple test method. ( 1) Oil cut-off method: at the inlet of non-standard bearings when idle, one by one, the detection of fuel injection pump to the fuel injector high pressure oil, investigation of deep groove ball bearing rotation speed and noise with change. If no significant change, expounds the bad cylinder operation; If any significant change, expounds the cylinder work outstanding. ( 2) Thermal method: after the deep groove ball bearing homework later on, with the hand touch each cylinder exhaust manifold. If feel is high temperature, to clarify the cylinder oil fuel delivery advance Angle is too small or large, cause the fuel consumption is serious; If feel the temperature is low, to clarify the small oil cylinder, burned, inadequate or no homework. ( 3) Listening: in deep groove ball bearing operation, with screwdriver to touch the injector body, to listen to each cylinder explosion sound. If fire tapping is intense, the excessive cylinder oil or oil supply early; Without fire, the oil cylinder is too small or oil or don't work too late. ( 4) Pulse feeling method: deep groove ball bearings in operation, with the hand contact each cylinder high-pressure tubing separation. If there are rules of pulsating handle, clarify the cylinder operating excellence; If no significant pulse feeling, to clarify the bad cylinder operating: if a pulse feeling without rules, clarify the cylinder oil has broken. ( 5) View smoked: exhaust flue gas abnormal usually three kinds, namely, black, blue and white. If the exhaust from the exhaust pipe is not normal, is to clarify each cylinder operation is not normal; If intermittent discharge of a single cylinder operation is not normal, can remove the exhaust pipe, investigating each cylinder exhaust conditions. Deep groove ball bearing maintenance need to solve the damage reason phenomenon of deep groove ball bearing raceway groove sound sound and its control method is when a one-way bearing operation, non-standard bearing the roller rolling on the surface of the raceway and a line of continuous sound, is unique to occur in all rolling bearings of the basic sound. General of deep groove ball bearing raceway is combined with other sounds. Ball bearing raceway is irregular, frequency above 1000 hz, its main frequency does not change with speed, but its total sound pressure level increases with speed to speed up. Raceway large bearings, the rolling sound of sound pressure level decrease with the increase of the viscosity; The raceway small bearings, the sound pressure level in the viscosity increases to about 20 was/s above, from decreased to increase somewhat. And the rigidity of the bearing, the greater the raceway of the lower the total sound pressure level. Such as radial clearance is too small, the total sound pressure level and race master frequency will increase sharply with the decrease of radial clearance. Method to control the sound of raceway are: choose low noise deep groove ball bearing is bearing waviness is very small, that is, carefully select and use conditions. Race often affect the mechanical noise, reduce the raceway can reduce the mechanical noise. Impact of the rolling element and its control method for larger models of ball bearings or cylindrical roller bearings under pure radial load speed, due to centrifugal force is lesser, roller in the rolling body will impact the load area or race and making noises. But with the increase of rotational speed, the noise will disappear. Control method of rolling body impact sound: decrease the radial clearance, materials for use with reasonable structure and flexibility of deep groove ball bearing cage.