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Two 1200 mm chrome shafts with four silver slide blocks and four supports

VEVOR

VEVOR SFC20 Linear Guide Rail Set 1200 mm 20 mm Shaft 4 Blocks

SKU CH-4TS5-D5Q8D

A 1200 mm linear guide rail set with 20 mm shafts, four SC20 slide blocks rated at 882 N dynamic and 1370 N static load, plus four rail supports for CNC and automation builds

  • TypeOther Appliances
  • Width5.91
  • 1200 mm travel length with two precision shafts
  • 882 N dynamic load per block for reliable motion
  • 1370 N static load per block for rigid positioning
  • Chrome-plated carbon steel shafts resist corrosion
  • Four SC20 slide blocks with sealed ball bearings

SFC20 1200 mm linear guide kit

This kit supplies two 1200 mm carbon-steel shafts, four SC20 slide blocks and four rail supports for CNC and automation builds. Each block carries a dynamic load of 882 N and a static load of 1370 N. The chrome-plated surface resists corrosion in workshop environments. Builders needing longer travel or heavier capacity must combine multiple sets.

Sustained-load behaviour

The carbon-steel shafts and aluminium slide blocks maintain straightness and repeatability over continuous cycles. Ball bearings inside the sealed SC20 blocks keep friction low during extended runs. The 40 mm mounting-hole pitch on both axes distributes force evenly across the 50 mm block length. Applications demanding higher dynamic ratings will need larger-diameter rails.

Build quality and mounting

Shaft diameter is 20 mm with a chrome finish; blocks measure 50 x 54 x 41 mm and weigh 7.1 kg for the full kit. Rail supports and pre-drilled 1.6 in holes simplify alignment on machine frames. The 120 mm overall width fits standard profile extrusions. Users requiring integrated limit switches or motor mounts must add them separately.

Highlights

  • 1200 mm travel length with two precision shafts
  • 882 N dynamic load per block for reliable motion
  • 1370 N static load per block for rigid positioning
  • Chrome-plated carbon steel shafts resist corrosion
  • Four SC20 slide blocks with sealed ball bearings

Specifications

TypeOther Appliances
Width5.91

Questions about this item

How much heat or noise does the SFC20 linear guide rail set generate when running continuously?

The chrome-plated carbon steel shafts and fully sealed SC20 blocks with built-in ball bearings produce low-friction, quiet sliding. No motor or active cooling is included, so heat and noise come only from the driven mechanism you attach.

What mounting hardware must I already have to install the 1200 mm rails and SC20 blocks?

The rails and blocks have 40 mm hole spacing (1.6 in) on both axes. You need M5 or M6 bolts, washers and a rigid mounting surface such as an aluminum profile or steel frame; fasteners are not supplied.

Will the 20 mm diameter shafts and SC20 blocks work with my existing 20 mm linear bearings or shaft supports?

Yes. The 20 mm shaft diameter matches standard SFC20 profile, so compatible 20 mm bearings or supports can share the same rails. The 50 × 54 × 41 mm block footprint and 40 mm mounting pattern also align with common SC20-pattern accessories.

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