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TM12NNA Miniature Linear Guide Dimensions and Load Ratings

TM12NNA miniature linear guide: dynamic load C=2.82 kN, static load C0=3.89 kN, allowable moment Mx=25.44 N·m, block weight 34 g, rail weight 0.63 kg/m, Carbon steel.

TM carbon steel, standardCarbon steelStandard rail widthStandard blockSize 12

Identification

GroupTM carbon steel, standard
MaterialCarbon steel
Rail widthStandard rail width
Block typeStandard block
Size12
Rail width W112 mm
Rail height H17.5 mm
Mounting hole P25 mm
Catalogue pageA139

Load ratings and allowable moments

ItemValueDescription
C2.82 kNBasic dynamic load rating
C03.89 kNBasic static load rating
Mx25.44 N·mAllowable moment, rolling
My13.7 N·mAllowable moment, pitching — single
My81.1 N·mAllowable moment, pitching — two blocks
Mz13.7 N·mAllowable moment, yawing — single
Mz81.1 N·mAllowable moment, yawing — two blocks

Weights

ItemValue
Block weight34 g
Rail weight (per metre)0.63 kg/m

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

Other variants of this size

TM12NLATM12NLSTM12NNSTM12WLATM12WLSTM12WNATM12WNS

FAQ

Are the load units for TM12NNA 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 A139. Note the TM series uses kN and N·m.

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