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Understanding of corruption as well as near the damaged anomalies, in particular noise and heat, such as a status and evolution; check power supply, as well as bearing the adjacent machine components during this period for any anomalies. Analysis noise of type, tone of high and low, frequency of interference rhythm: note temperature is from when suddenly increased of wait, note power and the other parts of situation; check adjustable heart roll child bearing where parts, identified lubrication; situation and pollution situation, audit lubricant grade and sealed way is wrong, note in has temperature rose situation Shi, TIMKEN bearing temperature is over by with lubricant of temperature limited, focus check oil bit high and low, sealed gap is leak oil leak fat, and water, and dust grain or other foreign body is has intrusion bearing And whether oil supply system has failed
Required attention to the acquisition of the signals exactly real, practical need to pay attention to the location of the measuring point and acquisition methods. To be true and accurate reflect the spherical roller bearing vibration. In the closest local arrangements for the bearing points, the motor fan cover after the free end, measuring point select it on the fan cover fixing screws have better monitoring effect. TIMKEN bearings shown in the use of its strong regularities, temporary production found in the status monitor. And repeatability is very good. Normal high quality spherical roller bearings when used at the beginning, vibration and noise are small, but some scattered spectrum, amplitude is small, probably due to some defects in the manufacturing process, such as the appearance of Burr.
Calls for strict monitoring of the TIMKEN bearing, at this point. Pay close attention to the changes. Thereafter, bearing steep degrees value and began fast declined, and near normal, and vibration and noise began significantly increases, its increased significantly began speed up, dang vibration exceeded vibration specification Shi (as ISO2372 specification) its bearing steep degrees value also began fast increases, dang both exceeded vibration specification, and steep degrees value also exceeded normal (available steep degrees relative standard) Shi, think bearing has into late fault produced, needed timely overhaul equipment, replaced bearing.
Capacity of larger TIMKEN bearing to demonstrate advanced features to a serious failure (usually bearing damage such as sticking, burning, Sandy spallation, Raceway, wear beads and other) most of the time not more than a week. Faster speed, shorter intervals. Therefore, the actual bearing fault diagnosis as soon as discover advanced features, should be decisive judgment bearing faulty, arrange for repair as soon as possible.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-33209 NTN | 45 | 85 | 32 |
| 4T-32209 NTN | 45 | 85 | 23 |