SCS..UU / SCS..LUU Series

The SCS series is our box type linear slider, consisting of an aluminum alloy housing with an integrated linear ball bearing, designed for use with linear shafts. This series is designed for complete assembly interchangeability with mainstream SCS series products. Available in standard type (SCS..UU) and extended type (SCS..LUU) specifications, suitable for applications including steel and metallurgy, textile industry, and general linear motion.

Key Features

  • Assembly Replacement – Direct replacement of existing same-series slider bodies in customer equipment
  • Designed for Linear Shafts – Works with linear shafts to achieve linear motion, with shaft ends supported and the middle section suspended
  • Standard Type (UU) – Standard housing length, suitable for conventional load applications
  • Extended Type (LUU) – Extended housing length, significantly improved rigidity and stability
  • Aluminum Alloy Housing – Lightweight design, surface treated for corrosion resistance
  • Double End Seals – UU indicates seals on both ends, effectively preventing dust ingress

Matching an LM, SCS, SBR or SHF unit? See which brands actually build this housing family in our linear bushing interchange chart.

Pairs well with: SF linear shafts · SK shaft supports · SBR supported rails
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Full Specifications

SCS..UU / SCS..LUU Slider — Dimensions

All dimensions in mm unless otherwise noted.

Dimension(mm) Rating Load(Kgf)
Model No. T h E W L F G B C K S1 S2 L1 Dynamic Static
SCS6UURFUMOTION.COM 6 9 15 30 25 18 15 20 15 5 M4 3.4 8 206 265
SCS8UURFUMOTION.COM 6 11 17 34 30 22 18 24 18 5 M4 3.4 8 274 392
SCS10UURFUMOTION.COM 8 13 20 40 35 26 21 28 21 6 M5 4.3 12 372 549
SCS12UURFUMOTION.COM 8 15 21 42 36 28 24 30.5 26 5.75 M5 4.3 12 510 784
SCS13UURFUMOTION.COM 8 15 22 44 39 30 24.5 33 26 5.5 M5 4.3 12 510 784
SCS16UURFUMOTION.COM 9 19 25 50 44 38.5 32.5 36 34 7 M5 4.3 12 774 1180
SCS20UURFUMOTION.COM 11 21 27 54 50 41 35 40 40 7 M6 5.2 12 882 1370
SCS25UURFUMOTION.COM 12 26 38 76 67 51.5 42 54 50 11 M8 7 18 980 1570
SCS30UURFUMOTION.COM 15 30 39 78 72 59.5 49 58 58 10 M8 7 18 1570 2740
SCS35UURFUMOTION.COM 18 34 45 90 80 68 54 70 60 10 M8 7 18 1670 3140
SCS40UURFUMOTION.COM 20 40 51 102 90 78 62 80 60 11 M10 8.7 25 2160 4020
SCS50UURFUMOTION.COM 25 52 61 122 110 102 80 100 80 11 M10 8.7 25 3820 7940
SCS60UURFUMOTION.COM 30 58 66 132 122 114 94 108 90 12 M10 10.7 25 4700 10000
SCS8LUURFUMOTION.COM 6 11 17 34 58 22 18 24 42 5 M4 3.4 8 274 392
SCS10LUURFUMOTION.COM 8 13 20 40 68 26 21 28 45 6 M5 4.3 12 372 549
SCS12LUURFUMOTION.COM 8 15 21 42 70 28 24 30.5 50 5.75 M5 4.3 12 510 7684
SCS13LUURFUMOTION.COM 8 15 22 44 75 30 24.5 33 50 5.5 M5 4.3 12 510 784
SCS16LUURFUMOTION.COM 9 19 25 50 85 38.5 32.5 36 60 7 M5 4.3 12 774 1180
SCS20LUURFUMOTION.COM 11 21 27 54 96 41 35 40 70 7 M5 5.2 12 882 1370
SCS25LUURFUMOTION.COM 12 26 38 76 130 51.5 42 54 100 11 M8 7 18 980 1570
SCS30LUURFUMOTION.COM 15 30 39 78 140 59.5 49 58 110 10 M8 7 18 1570 2740
SCS35LUURFUMOTION.COM 18 34 45 90 155 68 54 70 120 10 M8 7 18 1670 3140
SCS40LUURFUMOTION.COM 20 40 51 102 175 78 62 80 140 11 M10 8.7 25 2160 4020
SCS50LUURFUMOTION.COM 25 52 61 122 215 102 80 100 160 11 M10 8.7 25 3820 7940
SCS60LUURFUMOTION.COM 30 58 66 132 240 114 94 108 180 12 M12 10.7 25 4700 10000
SCS..UU Series – Box Type Linear Slider Specifications  SCS..LUU Series – Box Type Linear Slider Specifications

© RFU Motion. Specifications subject to change without notice.

For the latest specs, please contact us.

Custom Manufacturing Available

Standard ball screws and linear guides don't always fit your design. Here's what RFU MOTION can customize based on your drawings:

  • Shaft end machining — machined precisely to your drawing
  • Screw length — cut to your exact requirement
  • Preload — light, medium, heavy, or custom value
  • Nut type — standard flange, special shape, or non-standard mounting interface
  • Rail length — continuous cutting with end finishing (chamfer or grinding)
  • Mounting holes — special thread sizes, hole spacing, or countersunk dimensions

Send us your drawing or specs — we'll deliver exactly what you need.

📦 MOQ: 1 piece / 1 set

⏱️ Lead time: Standard custom 5-7 days | Complex custom 7-15 days | Wire cutting +2 days

Request Custom Quote →