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NSK Linear Guides™ Miniature PU Series/PE Series
6 Lubrication
Selection of grease: Table 10 shows grease that is suitable for the PU series/PE series. We specify PS2 as the
standard grease for NSK miniature linear guides.
Table 10 Available greases
Grease Thickener Base oil Base oil kinematic Temperature range Characteristic/Application
code Synthetic oil + viscosity mm2/s for use (ºC)
(40ºC)
Mineral oil
PS2 Lithium type 15 –50 to 110 • For low temperature operation
• Suitable for high speed and light load application
LG2 Lithium type Mineral oil + 30 –20 to 70 • For clean environment
Synthetic hydrocarbon oil
LGU Diurea type Synthetic hydrocarbon oil 100 –30 to 120 • For clean environment
Long term maintenance free: NSK K1 Lubrication unit enables long term maintenance free.
V1 V2 L
V2 V1 End seal
Protective cover NSK K1
Table 11 Dimensions when equipped with NSK K1 (PU series) Table 12 Dimensions when equipped with NSK K1 (PE series)
Unit: mm Unit: mm
Model No. Standard ball Ball slide length Thickness of Thickness of Model No. Standard ball Ball slide length Thickness of Thickness of
slide length equipped with NSK K1, V1 protective slide length equipped with NSK K1, V1 protective
two NSK K1, L cover, V2 two NSK K1, L cover, V2
PU05TR 19.4 24.4 2 0.5 PE05AR 24.1 28.9 2 0.4
Standard PU07AR 23.4 29.4 2.5 0.5 Standard PE07TR 31.1 37.1 2.5 0.5
type PU09TR 30 36.4 2.7 0.5 type PE09TR 39.8 46.8 3 0.5
PU12TR 35 42 3 0.5 PE12AR 45 53 3.5 0.5
PU15AL 43 51.2 3.5 0.6 PE15AR 56.6 66.2 4 0.8
High-load PU09UR 41 47.4 2.7 0.5 High-load PE09UR 51.2 58.2 3 0.5
type PU12UR 48.7 55.7 3 0.5 type PE12BR 60 68 3.5 0.5
PU15BL 61 69.2 3.5 0.6 PE15BR 76 85.6 4 0.8
Ball slide length equipped with NSK K1 = (Standard ball slide length) + (Thickness of NSK K1, V1 × Number of NSK K1) + (Thickness of the protective cover, V2 × 2)
✽ Additional NSK K1 is available depending on the use conditions.
7 Dust resistance
End seal: Provided to both sides of the ball slide as a standard feature.
Bottom seal function: It is designed to minimize the clearance between the side faces of rail and the inner walls
of the slide, and prevent foreign matters from entering the ball slide.
8 Applications
l S moother motion and low dust generation
Liquid crystal manufacturing and printed circuit board manufacturing devices
l L ightweight and low dust generation
Semiconductor manufacturing devices (mounter, die bonder, and exposure device)
l G entler tone and excellent dust resistant features
Medical machinery and various precision devices
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