Page 9 - e3239

PSS Type for General Uses

2- 3.4drill thru Unit : mm PSS
(equally spaced)
Ball screw specification
PCD 21
Ball dia./screw shaft root dia. 1.2 / 4.9
7.5 7.5
15 Ball circle dia. 6.2

Cross-section X X Accuracy grade/axial play C5/ 0.005 mm or less

Factory-packed grease NSK grease PS2

[Recommended support unit]

For drive side
(Fixed)

WBK04-01M (square) P 45
WBK04-11M (round) P 47

Lead accuracy Dynamic Permissible Internal Unit : mm
preload rotational spatial
torque Mass volume of Standard
speed volume of
Target value Error Variation nut
(cm3) grease
T ep Vu (N·cm) (kg) (min-1) 1 replenishing
0.2
0.06 (cm3)
0.3
0 20 18 0.5 or less 0.06 5 000 0.1
0.2
0.06 0.2
0.3
0.07 0.1

0.2

2. Service temperature range is 0 to 80ºC.
3. Use of NSK support unit is recommended. Refer to pages 45 to 48 for details.