Boundary dimensions(mm)

Basic load ratings(kN)

Limiting speeds(rpm)

Mass(Kg)

Bearing Number

d

D

B

rs min

Cr

Cor

Grease

Oil

(Approx.)

40

90

23

1.5

88

90

3200

4900

0.705

21308

40

90

23

1.5

88

90

3200

4900

0.694

21308K

40

90

23

1.5

88

90

3200

4900

0.694

21308KW33C3

40

90

23

1.5

88

90

3200

4900

0.705

21308W33C3

45

100

25

1.5

102

106

2900

4400

0.927

21309

45

100