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Metric system

Open:

638

Dust cover:

638ZZ

Sealed:

6382RZ

Sealed:

6382RS

SEO：

Metric system

Classification：

Micro bearings

Metric system

Products

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Product Introduction

Bearing Code

Open Type 638

Dust Cover Type 638ZZ

Sealed 6382RZ

Sealed 6382RS

Overall Dimensions(mm)

d 8

D 28

B 9

B1 9

r 0.3

r1(min) 0.3

Limiting Speed(rpm)

Grease（Z.2ZZ） 28000

Grease（RS.2RS） 22000

Oil Lubrication 34000

Rated Load

Cr(N) 4550

Cor(N) 1970

Cr(kgf) 465

Cor(kgf) 201

Mounting Dimensions(mm)

da(min) 10.0

db(max) 12.8

Da(max) 26.0

Db(min) 22.8

ra(max) 0.3

rb(max) 0.3

Weights(g)

Open Type 28.3

Dust Cover Type 28.6

Metric system

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