Boundary dimensions(mm)

Mass(g)

Bearing Number

d

D

B

(Approx.)

2

5

2.5

0.22

MR52-ZZ

2

5

2.5

0.22

MR52-ZZC3

2

5

2.5

0.22

MR52-ZZC3P6QE6

2

6

2.5

0.32

MR62-ZZ

2

6

2.5

0.32

MR62-ZZC3

2

6

2.5

0.32

MR62-ZZC3P6QE6

2

7

3

0.44

MR72-ZZ

2

7

3

0.44

MR72-ZZC3

2

7

3

0.44

MR72-ZZC3P6QE6

3

6

2.5

0.2

MR63-ZZ

3

6

2.5

0.2

MR63-ZZC3

3

6

2.5

0.2

MR63-ZZC3P6QE6

3

8

3