Page 4 of catalogue Precision slides of SKF Linearsysteme GmbH

5 Positioning systems Selection of screw for precision Tables RSS/Linear ball bearing table with drive Preloaded planetary roller Screws. Accuracy class G5 (v300p = 23 µm)
C6 C2 B

d

M1 M1

D

G3

M2

Dimensions B mm R0801 R0802 100 R0804 R0805 R1202 200 R1204 R1205 R1502 300 R1504 R1505 1 2 4 5 2 4 5 2 4 5 Screw Ø do Lead p

Load-carrying capacity1) Screw Ca Coa kN 3.1 3.6 4.4 4.4 3.7 4.4 4.8 5.5 6.6 7.2 3 4.3 4.4 4.2 4.6 4.5 4.7 7.6 7.4 7.7

Table driving torque Max. permissible Idling speed2) Ms Ma Nm 0.08 0.09 0.11 0.12 0.21 0.23 0.24 0.29 0.31 0.32 0.4 1.2 1.5 1.5 1.2 2.4 3.1 2 3.9 5.1

8

12

15

1) 2)

With compressive load the screw should be checked for buckling Ms = max. required driving torque at the screw for the unloaded table

Screw type Stroke Screw length3) S Max. screw speed

Screw abutment dimensions C2 min–1 154 195 245 295 220 320 420 520 225 325 425 524 12 000 11 000 6 400 4 200 8 500 6 000 3 200 2 000 6 600 7 300 3 900 2 400 mm C6 G3 M1 M2

mm 50 100 150 200 100 200 300 400 100 200 300 400

R08

6

17

2 × M5

–

45

R12

9

28

4 × M6

15

70

R15

9

34

4 × M6

15

70

3)

Total length of screw: for calculation of rotary moment of inertia

330

© SKF 2005