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Question
how to calculate bearing number?
 Question Submitted By :: Mechanical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Normally bearing number is having 4 digits.

EX 1 : Bearing # is 6308

I st digit 6 is indicates type of bearing. 6 means single
row deep ball bearing.3 indicates applied loads depends
upon the application.The last two digits indicates diameter
of the shaft.As per above example 08 means shaft dia is 40
mm.The simple calculation is shaft dia divided by5 is last
two digits of bearing number.
EX 2: Bearing # is 6207, The shaft dia is 35 mm.
 
Is This Answer Correct ?    135 Yes 27 No
Ramesh Yerabolu
 
Answer
# 2
Bearing characteristic number=Z*N/p

Z--->viscosity N-s/m^2
N--->rotation of the bearing in rpm
p--->bearing pressure
 
Is This Answer Correct ?    44 Yes 5 No
Karthick
 
 
 

 
 
 
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