SKF PRU 44x8 丝杠

Range

Standard range

Recirculation type

Planetary roller screw

Nut type

Cylindrical nut

Nominal screw diameter

d0 [mm]

44

Lead

Ph [mm]

8

Preload

Optimum rigidity

Number of thread

[N ]

6

Helix angle

? [°]

3,3

Dynamic load category

[kN]

50-70

Standard number of rollers

[Nr ]

11

Max. number of rollers

[Nmax ]

14

Dynamic Load

Ca [kN]

71,89

Static Load

Coa [kN]

130,73

Minimum nut rigidity

Rng [N/μm]

688

Reference nut rigidity

Rnr [N/μm]

895

Preload torque

Tpr [Nm]

1,07-2,14

Preload force

Fpr [N]

2 432

Nut mass

mn [kg]

1,7

Screw mass

ms [kg/m]

11,9

Screw inertia

Is [kgmm2/m]

2 890

Nut inertia

Inn [kgmm2]

1 730

Rollers inertia

Ins [kgmm2]

119,2

Grease quantity for nut

Zn [cm3]

22,8

d1

[mm]

44,4

d2

[mm]

43,2

D

[mm]

80

A

[mm]

90

w

[mm]

0,5

a

[mm]

6

b

[mm]

32

H

[mm]

82,5

Q

[mm]

7

B

[mm]

8

D2

[mm]

74

D3

[mm]

56