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TM12WLA Miniature Linear Guide Dimensions and Load Ratings

TM12WLA miniature linear guide: dynamic load C=5.16 kN, static load C0=8.31 kN, allowable moment Mx=102.90 N·m, block weight 86 g, rail weight 1.53 kg/m, Carbon steel.

TM carbon steel, wideCarbon steelWide railLong blockSize 12

Identification

GroupTM carbon steel, wide
MaterialCarbon steel
Rail widthWide rail
Block typeLong block
Size12
Rail width W124 mm
Rail height H18.5 mm
Mounting hole P40 mm
Catalogue pageA141

Load ratings and allowable moments

ItemValueDescription
C5.16 kNBasic dynamic load rating
C08.31 kNBasic static load rating
Mx102.90 N·mAllowable moment, rolling
My57.51 N·mAllowable moment, pitching — single
My292.3 N·mAllowable moment, pitching — two blocks
Mz57.51 N·mAllowable moment, yawing — single
Mz292.3 N·mAllowable moment, yawing — two blocks

Weights

ItemValue
Block weight86 g
Rail weight (per metre)1.53 kg/m

TM uses kN and N·m; the TR/SR series uses kgf and kg·mm.

Other variants of this size

TM12NLATM12NLSTM12NNATM12NNSTM12WLSTM12WNATM12WNS

FAQ

Are the load units for TM12WLA the same as the TR series?
No. The TM miniature series states basic load ratings in kN and allowable moments in N·m, while the TR/SR series uses kgf and kg·mm. Convert before comparing (1 kgf ≈ 9.81 N).
How do I choose between the stainless and carbon steel types?
The last letter is S for stainless and A for carbon (alloy) steel. Choose S for semiconductor, food and medical applications where corrosion resistance and cleanliness matter; A is more economical for general automation. Dimensions and load ratings are identical.
How long can TM rails be?
Lengths beyond 1300 mm are made up of two or more rails butted together — confirm the butt-joint accuracy and support method with the maker. Accuracy is N / H / P; clearance is ZF / Z0 / Z1.

Related Technical Guides

Linear Guide SelectionMounting TorqueScrew SizingSupport Unit CardsSelection Tree

Load and moment data from the MOSIONX 2026 general catalogue, chapter A page A141. Note the TM series uses kN and N·m.

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