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

2nd 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

4th Step:

Calculate the maximum bearing load

4.1
Maximum bearing load in y-direction

4.2
Maximum bearing load in z-direction

3.1
Center of mass in x- and z-direction within the carriage(s)

**
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

3.2
Center of mass in z-direction outside the carriage(s)

**
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|

3.3
Center of mass in x-direction outside the carriage(s)

In case the position of the center of mass cannot be classified:

5th 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
[lbs]

TW-01-15

450

TW-01-20

830

TW-01-25

1125

TW-01-30

1575