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drylin® T - System design, vertical, 1 rail and 2 carriages or 2 rails and 4 carriages

2st Step:

Check whether the clearances of the aggressive forces lie within the permitted values (see Maximum permitted clearances).

Maximum permitted clearances:

Option: 1 rail, 2 carriage
Option: 2 rails, 4 carriages
sy + sz < 2 wx - Y0
ay + az < 2 wx - Y0

3st Step:

Calculate the required driving power

Initially four calculations should be carried out:
The driving power Fa corresponds to the calculated maximum value:



4st Step:

Calculate the maximum bearing load

4.1

Maximum bearing load in y-direction

4.2

Maximum bearing load in z-direction


Variables in the calculation:

Fa: Driving power [lbs]
Fs: Mass force [lbs]
Fy, Fz: Bearing load in y- or z-direction [lbs]
sx, sy, sz: Clearance of the mass force
in x-, y- or z-direction
[mm]
ay, az: Clearance of the driving power
in y- or z-direction
[mm]
wx: Clearance of the carriage on a rail [mm]
LX: Constant based on the installation size [mm]
Zm: Constant based on the installation size [mm]
Y0: Constant based on the installation size [mm]
b: Clearance of the guide rails [mm]
µ: Coefficient of friction,
µ = 0 in static loads,
µ = 0.2 in dynamic loads
 
ZW: Number of carriages per rail  


The constant values:

Order no. LX ZM Y0
  [mm] [mm] [mm]
TW-01-15 29 16 11.5
TW-01-20 35 23 15.0
TW-01-25 41 25 19.0
TW-01-30 49 29 21.5


Coefficients:

  1 rail,
2 carriages
2 rails,
3-4 carriages
K1 |(ay+Y0)/Wx| |(ay+Y0)/Wx|
K2 (sy+Y0)/Wx (sy+Y0)/Wx
K3 |az/Wx| |az/Wx|
K4 |sx/Wx| |sx/Wx|
K5 |sz/Wx| |sz/Wx|
K6 |(sy+Y0)/Zm| |(sy+Y0)/b|
K7 |sz/Zm| |(sz/b)-0,5|

5st Step:

Check the maximum bearing load of the most strongly stressed bearing with the calculated load in Step No. 4.

Maximum permitted load:

Order no. Fymax, Fzmax
[N]
TW-01-15 2000
TW-01-20 3700
TW-01-25 5000
TW-01-30 7000

6st Step:

Determination of the maximum permitted speed for the load in Step No. 4
Diagram for the determination of the maximum permitted speed for the determined bearing load


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igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsibushi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention in this website. The products offered by igus® are those of igus® GmbH