SBR Guide Rail – Supported Linear Guide Rail

The SBR guide rail is the supporting component of our economical linear guide rail system, featuring an aluminum base + chrome-plated shaft structure. The open design allows the slider to slide freely along the full travel of the rail. This series is designed for complete assembly interchangeability with mainstream SBR guide rail products. The rail surface undergoes hardening treatment for excellent wear resistance. Suitable for economical linear motion applications including automation equipment, CNC engraving machines, and 3D printers. Available in shaft diameters from 10mm to 50mm, with rail lengths customizable per customer requirements.

Key Features

  • Assembly Replacement – Direct replacement of existing same-series rails in customer equipment; custom machining available per customer drawings
  • Open Design – Aluminum base support allows slider to slide freely along full rail travel; easy installation and maintenance
  • Hardened Surface – Shaft undergoes hardening treatment for excellent wear resistance and long service life
  • Anodized Aluminum Base – Base is made of aluminum alloy and anodized for corrosion resistance and aesthetic appearance
  • Wide Size Range – Fits shaft diameters from 10mm to 50mm; rail length up to 6000mm (longer lengths available with joint connection)

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: SBR..UU sliders · SF linear shafts
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Full Specifications

SBR Guide Rail — Dimensions

All dimensions in mm unless otherwise noted.

Rating Load(N) Dimension(mm)
Model Shaft Dia. Dynamic Static D h H E w G A B T M S3 J K S2 C S1 P
SBR12SRFUMOTION.COM Φ12 600 1020 20.5 22.5 40 15 41 28 9 30 4 39 M4×16 28 26 Φ4.0 22 M5 100
SBR16SRFUMOTION.COM Φ16 770 1170 22.5 25 45 20 45 33 9 40 5 45 M6×20 32 30 Φ5.5 30 M5 150
SBR20SRFUMOTION.COM Φ20 860 1370 24 27 50 22.5 48 39 11 45 5 50 M6×20 35 35 Φ5.5 30 M6 150
SBR25SRFUMOTION.COM Φ25 980 1560 30 33 60 27.5 50 47 14 55 6 65 M6×25 40 40 Φ6.6 35 M6 200
SBR30SRFUMOTION.COM Φ30 1560 2740 35 37 70 30 70 56 15 60 7 70 M8×30 50 50 Φ6.6 40 M8 200
SBR35SRFUMOTION.COM Φ35 1660 3130 40 43 80 32.5 80 63 18 65 8 80 M8×35 55 55 Φ9 45 M8 200
SBR40SRFUMOTION.COM Φ40 2150 4010 45 48 90 37.5 90 72 20 75 9 90 M8×40 65 65 Φ9 55 M10 200
SBR50SRFUMOTION.COM Φ50 3820 7930 60 62 115 47.5 120 90 25 95 11 110 M10×50 94 80 Φ11 70 M10 200
SBR Guide Rail – Supported Linear Guide Rail 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

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