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Compact FA Series USS Type for High-Accuracy and Clean Uses

Applications

Clean uses for semiconductor manufacturing equipment, LCD manufacturing equipment, inspection equipment etc.

Accuracy grade and axial play

Accuracy grade: C3 grade of JIS Axial play: 0 (Oversize ball preload)

Low-dust emissions

Dust particles are reduced by 90% compared with general lithium grease since NSK clean grease LG2 is used as a
standard.

Low-dust emissions (LG2 Grease)

• 1/100 of dust emissions comparing with existing FA series
• Ideal for clean environmental use due to superb low-dust feature

1 000 000Dust particle amount (0.1 μm or larger) [particles/28.3 litle]Ball screwFA Series 10 000 ࣎㍈B࣮ࠉallࣝᚄsࠉࡡcrࡌew
100 000 Dust particle amount (0.5 μm or larger) [particles/28.3 litle]Shaft dia. 12(General grease)1 000ࣜS࣮haࢻftࠉdia. 12
Lead 5 ᅇLe㌿aᩘd ࠉ5 PLQ
Rotational speed 1 000 min-1 Rotational speed 1 000 min-1

10 000 100 FA Series
(General grease)

Compact FA USS type
(LG2 Grease)

1 000 Compact FA USS type 10 10 20 30 40 50 60 70 80 90
(LG2 Grease) Time, h
100 1
0 10 20 30 40 50 60 70 80 90 0
Time, h

Shaft end support

Low-profile support unit especially compatible with Compact FA Series and support unit for clean environments are
available.

Combinations of screw shaft diameter, lead and stroke

Shaft Lead Stroke Page Recommended support unit
dia. 5 100 200 400 500 600 31 to 32
10 33 to 34 Fixed Simple Application
 35 to 36
12 WBK08-01B WBK08S-01B Low

15 WBK08-01C WBK08S-01C Clean

  WBK08-01B WBK08S-01B Low

WBK08-01C WBK08S-01C Clean

  WBK12-01B WBK12S-01B Low

WBK12-01C WBK12S-01C Clean