SKF SRF 21x10 - service 丝杠

Range

Service range (Quick delivery)

Recirculation type

Planetary roller screw

Nut type

Flanged nut

Nominal screw diameter

d0 [mm]

21

Lead

Ph [mm]

10

Preload

Axial play

Number of thread

[N ]

5

Helix angle

? [°]

8,62

Dynamic load category

[kN]

30-50

Standard number of rollers

[Nr ]

9

Max. number of rollers

[Nmax ]

10

Dynamic Load

Ca [kN]

59,2

Static Load

Coa [kN]

83

Max. axial play

[mm]

0,04

Nut mass

mn [kg]

0,7

Screw mass

ms [kg/m]

2,7

Screw inertia

Is [kgmm2/m]

149,9

Nut inertia

Inn [kgmm2]

436,6

Rollers inertia

Ins [kgmm2]

6,5

Grease quantity for nut

Zn [cm3]

5,03

d1

[mm]

21,8

d2

[mm]

19,7

D

[mm]

45

A

[mm]

64

A1

[mm]

23

A2

[mm]

18

D1

[mm]

68

J

[mm]

56

G

[mm]

M5

r

[mm]

0,8

Q

[mm]

M6

u

[°]

30

B

[mm]

4

D2

[mm]

40,5

D3

[mm]

26