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NJ2230 ECM 150x270x73 MM Cylindrical Roller Bearing Single Row High
Precision For Rail Vehicle
Description :
Model | NJ 2230 ECM |
Bearing material | GCr15/AISI52100/100Cr6 |
ID*OD*W (mm) | 150 x 270 x 73 MM |
Seal type | double shields |
Lead time | Stock or 15-30days |
Weight(kg) | 19.2 |
Limiting speed | 2800 r/min |
Clearance | C2,C0,C3,C4,C5 |
Vibration Level | V1, V2, V3, V4 |
Precision Rating | P0,P6,P5, |
MOQ | No MOQ |
Port | Shanghai |
Grease | Mobil polyrex EM,Kyodo Yushi SRL |
Payment terms | T/T, L/C |
Drawing:
Vibration:
In ordinary use, vibration is quite sensitive to the bearing
damage, peeling, indentation, rust, crack, wear and so on will be
reflected in the bearing vibration measurement. Therefore, the size
of vibration can be measured by using a special bearing vibration
measuring device (frequency analyzer, etc.), and the specific
abnormal situation can be inferred from the frequency distribution.
The measured values are different due to the use conditions of the
bearings or the installation positions of the sensors, so it is
necessary to analyze and compare the measured values of each
machine before determining the judgment criteria.
The temperature:
High temperature is often used to indicate that cylindrical roller
bearings have been in an abnormal situation. High temperature is
also harmful to bearing lubricants. Sometimes bearing overheating
can be attributed to bearing lubricants. If the bearing in excess
of 125℃ temperature for a long period of continuous transfer to
reduce the bearing life. Causes of high-temperature bearing
include: insufficient or too much lubrication, bearing raceway
containing impurities, excessive limit speed, bearing long-term
overload operation.
Payment
1 : T/T: 30% as deposit and 70% balance after getting a copy of
B/L.
2 : L/C (cannot for branded bearings.)
3 : Discuss together between buyer and supplier.