Linear guide configurator

Describe the axis — the configurator checks every carriage type and size of the VR, VB and VX series for static safety and service life and recommends the smallest guide that fits. Then build the order code and request a price.

1

Application and layout

ApplicationSets the reference load ratio C / F from the catalogue and the preferred series.
Mounting
Rails per axis
Carriages per rail
Carriage spacing l₀
mm
Centre distance between the outer carriages on one rail.
Overhang d
mm
Distance of the load's centre of gravity from the rail.
2

Load and motion

Payload m
kg
Moving mass carried by the carriages.
Additional force
N
Optional — e.g. a process force acting like the weight.
Stroke s
mm
Double strokes per minute n
1/min
Max. speed v
m/s
Max. acceleration a
m/s²
3

Requirements

Operating time
Required service life [years]
Shocks and vibration
Static safety
Accuracy class
Preload
C1 light · C2 medium: rigid, single rail, vibration · C3 heavy: precision machine tools.
Carriage form

Result

Load per carriage
Static safety S₀ = C₀ / F
Load ratio C / F
Nominal life
Speed · acceleration
Suggested rail length
straightenDimensions

The order code is built in the next step — accuracy, preload, carriages, rails and rail length are filled in from here.

Smallest size per series

Click a series to show it above.

Preliminary sizing with the load centred between the carriages. Our engineers check the complete calculation — moments, inertia forces and load phases — with your inquiry.

Result arrow_downward

How the configurator calculates

The selection method of the Veltork linear-guide catalogue to DIN ISO 14728-1, simplified for a first sizing. Load ratings C and C₀ per carriage from the dimension tables.

Load per carriage

Weight m·g plus the additional force, shared equally by all carriages — the load is assumed centred between them. On a vertical axis the overhang moment m·g·d is taken by the outer carriages at spacing l₀.

Static safety

S₀ = C₀ / F, compared with the catalogue reference values: 3 to 5 with all loads known, 5 to 8 for normal machines, 8 to 12 with dynamic loads at standstill or contamination, at least 12 overhead.

Load ratio

C / F, compared with the catalogue reference for the application — for example 5 for handling, 6 for heavy cutting, 9 for grinding.

Shocks and preload

For ball guides the load factor fw for shocks and vibration multiplies the load first. For C2 and C3 the internal preload Fpr (8 % and 12 % of C) raises the effective load: Feff = (fw·F / (2.8·Fpr) + 1)1.5 · Fpr while fw·F ≤ 2.8·Fpr.

Nominal life

L = (C / Feff)3 · 105 m for ball guides, (C / Feff)10/3 · 105 m for roller guides; in hours Lh = L / (2·s·n·60), then years from the operating time.

Limits

Each series is checked against its maximum speed and acceleration and the available combinations of accuracy class and preload.

Not included: moments from off-centre loads, inertia forces and several load phases. The full method, with moments and preload, is in the catalogue, pages 57–65.

Unusual axis? Send it to our engineers.

Send us the axis — load, stroke, speed, mounting and required accuracy. We return the order code, a service-life estimate and the dimension drawing.

engineering Request engineering compare_arrows Compare series