Step 3
Select The Proper Carrier Bend Radius (KR) & Mounting Height (H)
1.) Determining the Bend Radius (KR): To determine the correct carrier system bend radius ( KR ), use the largest cable or hose in your particular application and multiply the most appropriate KabelSchlepp standard bend ( KR ) radius safety factor as listed below:
When possible, using the cable or hose manufacturer’s published specifications. However, when this information is unavailable, consider the following rules of thumb:
for continuous hi-flex-cables use 7.5 x the cable outside diameter as a minimum
for standard continuous flex-cables use 10 x the cable outside diameter as a minimum
for continuous flex-hoses with their contents at less than 1000 psi, use 10 x the hose outside diameter as a minimum
for continuous flex-hoses with their contents at greater than 1000 psi, use 12 x the hose outside diameter as a minimum
2.) Minimum Bend Radius: To determine the minimum bend radius ( KR ) of a carrier system, use and select the closest available bend radius size option (catalog example: Option A, B, or C etc.) that properly accepts the minimum bending requirements calculated (step 3, number 1 above) of the largest cable and/or hose from within the selected carrier product category, design, and size in the KabelSchlepp catalog. a.) If this list of bend radii ( KR ) size options is too small, move to the next larger carrier size within the product group and type you have selected and select the best bend radius option available there.
Abl_0650
b.) Always allow 10% (1.10 multiplier) operating space above the carrier system loop ( H z ) for the inherent “crown” or pre-tension.
cable carrier may have inherent crown/pre-tension ( Hz )
H z = H x 1.10
c.) Make note of the bend radius ( KR ) option that best fits your application requirements.
GENERAL DATA
CL Total Machine Travel (L S )
E CONOMIC V ALUE A DDED 3
Extended
Retracted
Moving End
L B
t = Link Pitch
Increasing Cable/Hose Life When selecting a cable carrier system, always choose a cable carrier that has a minimum bend radius ( KR ) that is equal to or larger than the manufacturer's recommended minimum continuously- flexing bend radius of any of the cables or hoses used in the carrier. Typically, increasing the bend radius of the car- rier system will reduce the amount of bending stress that is put on cables and hoses resulting in longer operational life. Therefore, it is recommended to use the largest cable carrier bend radius option that will still fit within your operating en- velope.
H
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0320 � 1.26 (32)
KR
Fixed End
L S = total machine travel L B = 3.14 x KR + (2 x t safety factor) L K = chain length required L K = LS ÷ 2 + length of the curve (L B )* * Assumes the Fixed Point is located at the Center of the Total Machine Travel. Calculation of Chain Length
U B
Dimensions in inches (mm) Technical Data
Bend Radius KR
Depot
Loop Length L B 7.13 (181) 8.35
Mounting Height H
Series 0320
U B 3.23 (82) 3.62 (92) 4.80 (122) 5.71 (145)
6
3.90 (99) 4.69 (119) 7.05 (179) 8.86 (225)
1.46 (37) 1.85 (47) 3.03 (77) 3.94 (100)
Option A
Option B
(212) 12.05 (306) 14.92 (379)
Option C
Option D * * KR 100 - special order
Self-Supporting Lengths
Larger KR = Longer Life
lbs ft 3.4 2.7 2.1 1.4 0.7
kg m
5 4 3 2 1
Specifications are subject to change without notice. KSA-0810-GC
2.08
Type 0320
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