INA joint bearing damage degree analysis of the inspection

INA coat of the bearing and seal cover large offshoring, oil spills, discoloration, bearing clearance, crack damage, corrosion, etc. Once found in a check appearance fault characteristics, to seriously careful judgment, determine the accurate parts of the fault. Shaft end gap of outer ring and two seal cover is too big, found that the bearing outer ring gap of front end and the seal cover is too big, and have more oil overflow, is a joint bearing outer ring split. 1. Ring, rolling body fracture on any one. Accurately and quickly and effectively to collect signals, data processing, manual or automatic identification and judgment. Bearing industry has entered a new high quality fast development period includes monitoring operation status, supplement or replacement of lubricants, remove the check on a regular basis. 2. Rolling on the pavement, guard, rolling body CARDS have a significant injury. Bearing is available judgment, mainly considering joint bearing damage degree, mechanical properties, importance, and operating conditions, to the next overhaul period. If there are the following defects cannot be used again, new bearing must be replaced. 3. Cage wear significant or rivet significant relaxation. 4. Raceway surface rust, rolling body, injury. 5. Inner ring diameter or outer diameter surface has obvious creep. 6. On the raceway surface, rolling body has serious indentation and playing. 7. Due to the hot color is obvious. Bearing grease is usually make a similar viscosity or apparent viscosity, said when, on the viscosity of grease must specify the temperature and shear rate. Similar viscosity index can be used to control the low temperature fluidity and pumping. Measure bearing grease performance at low temperature is one of the important index of low temperature torque, namely at low temperature ( - 20 ° c below) Grease block joint bearing rotational degree of low speed flows, the low temperature torque of the grease by the starting torque and rotation torque after 60 mm average said. The evaporative (INA bearing grease C) Said in the long-term use under condition of high temperature grease, grease oil volatilization, evaporative as small as possible. The evaporative mainly depends on the nature of the lubricating oil and fat fractions.