The capacity to carry heavy loads for thousands of hours in the most arduous conditions makes SR/BR/TR/PR planetary roller screws suitable for the most demanding applications. The robust nut can withstand shock loads and the timing mechanism ensures reliability even in harsh environments and at high accelerations; the long lead and the symmetrical design of the nut permit high linear speeds.

Drawing (click to enlarge)

 

Range

Service range (Quick delivery)

 
 

Recirculation type

Planetary roller screw

 
 

Nut type

Cylindrical nut

 
 

Nominal screw diameter

d0 [mm]

15

 
 

Lead

Ph [mm]

5

 
 

Preload

Backlash elimination

 
 

Number of thread

[N ]

5

 
 

Helix angle

Ø [°]

6,06

 
 

Dynamic load category

[kN]

<30

 
 

Standard number of rollers

[Nr ]

9

 
 

Max. number of rollers

[Nmax ]

11

 
 

Dynamic Load

Ca [kN]

14,3

 
 

Static Load

Coa [kN]

21,8

 
 

Torque for play elimination

Tpe [Nm]

0,19

 
 

Nut mass

mn [kg]

0,2

 
 

Screw mass

ms [kg/m]

1,4

 
 

Screw inertia

Is [kgmm2/m]

39

 
 

Nut inertia

Inn [kgmm2]

45,2

 
 

Rollers inertia

Ins [kgmm2]

1,2

 
 

Grease quantity for nut

Zn [cm3]

2,29

 
 

d1

[mm]

15,4

 
 

d2

[mm]

14,3

 
 

D

[mm]

35

 
 

A

[mm]

50

 
 

w

[mm]

0,5

 
 

a

[mm]

4

 
 

b

[mm]

16

 
 

H

[mm]

36,5

 
 

Q

[mm]

5

 
 

B

[mm]

3

 
 

D2

[mm]

30

 
 

D3

[mm]

20