energy chain - Technical terms and definitions

The glossary explains the most important abbreviations, terms, formulae and pictograms relating to the energy chain.

Abbreviations	Explanation:	Unit
α	Angle of rotation	[°]
ΔM	Deviation of the centre point	[mm]
a	Acceleration	[m/s²
AR	outer radius energy chain (for twisterchain®)	[mm]
Ba	Outer width	[mm]
Bi	Inner width	[mm]
B_Ra	Guide trough outer width	[mm]
B_Ri	Guide trough inner width	[mm]
D	Over length e-chain® radius in final position	[mm]
D₂	Over length for long travels gliding	[m]
FL_B	Unsupported length with sag	[mm]
FL_G	Unsupported straight length	[mm]
FL_U	Unsupported lower run	[mm]
FL_P	Projected unsupported length [m]	[mm]
FL₉₀	Side-mounted applications [m]	[mm]
FL_max.	Maximum fill weight	[kg/m]
H	Nominal clearance height	[mm]
H₂	Clearance height with lowered moving end	[mm]
ha	e-chain® External link height	[mm]
H_F	Required clearance height	[mm]
hi	Inner height	[mm]
H_Ra	Outer trough height	[mm]
H_Ri	Inner trough height	[mm]
IR	inner radius e-chain®	[mm]
K	Add-on for bend radius for calculating the e-chain length	[mm]
K₂	Add-on for bend radius if the mounting point is lowered (for long travels)	[mm]
L_K	e-chain®-length	[mm]
n	Number of links	[1]
n_Mon	Number of installation sets (left/right)	[1]
n_Ri	Number of trough sets (left/right)	[1]
R	Bend radius	[mm]
RBR	Reverse Bend Radius	[mm]
S	Travel	[mm]
S/2	Half length of travel	[mm]
T	e-chain® pitch	[mm]
v	Speed	[m/s]
X₁	Inner machine limit (twisterchain)	[mm]
X₂	outer radius e-chain® incl. Free space	[mm]

Formulae

Formula	Explanation:
L_K = ^S/₂ + K	e-chain®® -length, all installation types, fixed end in the centre of the travel, except circular movements and most long travels (for FL_G, FL_B) [m].
L_K = ^S/₂ + ΔM + K	e-chain®® -length, fixed end outside the centre of the travel path (for FL_G, FL_B and ΔM)
L_K = [sup]S[sup]/₂ + K₂[m]	e-chain®® -length for long travel distances, fixed end in the centre of the travel distance
SFL_B = 2 * FL_B	Calculation of maximum travel length, unsupported with sag
SFL_G = 2 * FL_G	Calculation of maximum travel length, unsupported straight
B_RI ≥ Ba + 5	Minimum guide trough width
H_RI ≥ 2 * ha	Minimum height of the guide trough for gliding application
K = R * π + (2 x T)	Add-on for bend radius