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SRH45FL Linear Guide (High assembly) Dimensions and Load Ratings

SRH45FL linear guide specifications: dynamic load rating C=7,572 kgf, static load rating C0=12,808 kgf, allowable moment Mx=292,657 kg·mm, block weight 2.8 kg, rail weight 10.4 kg/m.

SR series · high assemblyHigh assemblyWith flangeLong blockSize 45

Identification

SeriesSR series · high assembly
Assembly height H60 mm
Flange typeWith flange
Block lengthLong
Size45
SuffixFL
Catalogue pageA75

Load ratings and allowable moments

ItemValueDescription
C7,572 kgfBasic dynamic load rating
C012,808 kgfBasic static load rating
Mx292,657 kg·mmAllowable moment, rolling
My220,751 kg·mmAllowable moment, pitching — single block
My1,030,183 kg·mmAllowable moment, pitching — two blocks
Mz220,751 kg·mmAllowable moment, yawing — single block
Mz1,030,183 kg·mmAllowable moment, yawing — two blocks

Weights

ItemValue
Block weight2.8 kg
Rail weight (per metre)10.4 kg/m

Rail weight is a per-size figure and does not depend on block count.

Other sizes in this series

SRH15FNSRH15VNSRH20FESRH20FNSRH20VESRH20VNSRH25FESRH25FNSRH25VESRH25VNSRH30FESRH30FNSRH30VESRH30VNSRH35FESRH35FNSRH35VESRH35VNSRH45FESRH45VESRH45VL

FAQ

How do C and C0 differ for SRH45FL?
C0 is the static rating used for the static safety factor check at rest or low speed; C is the dynamic rating used in the life formula. They describe different conditions and are not interchangeable.
How much stronger are two blocks than one?
For this model the two-block allowable pitching moment rises from 220,751 to 1,030,183 kg·mm. Select per catalogue table 2.x and remember to apply the contact-factor fc derating.
How many blocks and rails fit this model?
Size 45 is available both as separate blocks and rails, and as factory-matched sets with higher combination accuracy. Rail length is cut to your stroke; accuracy N/H/P/SP and clearance ZF/Z0/Z1/Z2 are all orderable.

Related Technical Guides

Linear Guide SelectionMounting TorqueScrew SizingSupport Unit CardsSelection Tree

Load and moment data from the MOSIONX 2026 general catalogue, chapter A page A75; dimension tables on the adjacent pages.

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