Page 452 - MISUMI SINGAPORE Economy Series

Economy series Technical Calculation
Cable Carriers

Step 3. Calculate free span length <Selection Examples>
Calculate the length of free span by required moving stroke and 2000mm is required for strokes. Free span length requires
2000/2=1000mm
the position of fixed end. as the fixed end can be set at a stroke intermediate point.
S (Travel Stroke) <Free Span Length>
S/2 S/2 Distance between the cable carrier moving end (A) and bending
Free Span Length radius arc origin point (B).
(B) (A)
When positioning the fixed end in the center of the moving stroke,
R Free Span Length = Travel Stroke/2

Moving End
Fixed End Moving End * Possible to minimize the quantity of cable carrier links by setting
the fixed end at the intermediate point of travel stroke.
3 Step 4. Calculate the required number of links 3
Cable Carriers / Cables / Heat Shrink Tubes Fans / Network USB Adapter / Switching Hubs Calculate the required number of links by the following formula. S (Travel Stroke) Expansion Moving End H(*) HF(*) Fans / Network USB Adapter / Switching Hubs Cable Carriers / Cables / Heat Shrink Tubes
S
+K+A
Free Span
2
n=
P
R
n: Number of Links (Round up the number after the decimal point.)
Fixed End
S: Travel Stroke
K: Arc Length + Margin (*)
A: Distance from an intermediate point (mm) when A S/2
fixed end is not set at a travel stroke intermediate point
Cable Carriers P: Link Pitch(*) E Symbols in the diagram: HF indicates the passable height that Carriers Cable
(0 when at an intermediate point).
*1 About the number of backup links takes into account the expansion height generated with cables /
· In the case of new designs, there may be a possibility that carrier hoses, etc. not inserted, when using the cable carrier at a free
P.445 links run short. span length. P.445
· It is recommended that links are selected longer by one or two * Please refer to the product pages for the symbols K
Machinery Cables · For installation, see product pages. (arc length + margin), P (link pitch) and H-HF (space height). Cables Machinery
links, and are adjusted (removed) at the time of installing device.
Precautions for installing and fixing cables
P.455 · Tie a cable at both ends of the cable carrier. P.455
Cables for Signals Fix Signals Cables for

P.461 Fix P.461
Heat Shrink Tubes · Allow the cable to move freely. Tubes Heat Shrink

the cable carrier.
P.468 · For the full stroke range, make sure that any portion of a cable is not put in excessive contact with the internal/external circumference of P.468
Cable · No excessive · Excessive contact with the · Excessive contact with the
Carriers
Fans Cable contact internal circumference external circumference Fans
×
×
P.480 · Fix both ends of the cable with no tension force applied. P.480
Network Communication Communication Network

P.484 P.484
Switching Hubs Hubs Switching

P.489 P.489

447