SKF 71904 ACE/HCP4A 轴承

Seal

no

bearing internal diameter range

d [mm]

18-29

bearing internal diameter

d [mm]

bearing external diameter

D [mm]

bearing width

B [mm]

d1

[mm]

25,6

D1

[mm]

31,4

r1, r2

[mm]

0,3

r3, r4

[mm]

0,2

contact angle

%26alpha; [°]

25

a

[mm]

11

da

[mm]

22

db

[mm]

21,4

Da

[mm]

35

Db

[mm]

35,6

ra

[mm]

0,3

rb

[mm]

0,2

oil nozzle position

dn [mm]

26,8

Speed rating with grease

[1/min]

56 000

Speed rating with oil

[1/min]

85 000

dynamic load rating

C [N]

4 420

static load rating

Co [N]

2 040

fatigue load limit

Pu [N]

85

Light preload

Class A [N]

35

Medium preload

Class B [N]

70

Heavy preload

Class C [N]

140

mean diameter

P [mm]

28,5

ball diameter

dw [mm]

4,76

ball number

[Z ]

14

Bearing materials

Hybrid

Mass

[kg]

0,032