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Please informe me about bearing e.g ball bearing, what is
meaning of number apearing in bearing or bearing housing.
for example:- 6305 or UC P 206

Answer Posted / lipu

Bearing No. generally of 5 digit(no.), 1st 3 nos(from left ) is called dimension series e,g Bearing No. 6305, No. 63 is dimension series 6 is for deep groove bearing, and if there is one '0' which is width series and 3 is for height series. and as mention in 1st answer the last 2 nos. 05 is your Bore dia by multiplying 5.
The 5 multiplication is for bearing dia 20-494 mm dia. only.

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