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drylin® T - Mounting Version - Horizontal
1st Step:
Select the mounting version:
- 1 rail and 1 carriage
- 1 rail and 2 carriages
- 2 rails and 4 carriages
2nd Step:
Check to see whether the maximum clearances of the applied forces are within the permissible values (see maximum permissible clearances, right).
| Option: 1 rail, 1 carriage | ||
|---|---|---|
| sy + sz | < | 2 Lx - Y0 |
| ay + az | < | 2 Lx - Y0 |
| sy | < | 5 Zm |
| sz | < | 5 Zm |
3rd Step:
Calculate the necessary driving force
If the position of the center of gravity is not specified: Fa = MAX (Fa1, Fa2, Fa3)
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 |
Constant values:
| Order number | LX [mm] | ZM [mm] | Y0 [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, 1 carriage |
|---|
| K1 |(ay+Y0)/Lx| |
| K2 (sy+Y0)/Lx |
| K3 |az/Lx| |
| K4 |sx/Lx| |
| K5 sz/Lx |
| K6 |(sy+Y0)/Zm| |
| K6 |(sy+Y0)/Zm| |
Maximum permitted load:
| Order number | Fymax, Fzmax [N] |
|---|---|
| TW-01-15 | 450 |
| TW-01-20 | 830 |
| TW-01-25 | 1125 |
| TW-01-30 | 1575 |
4th Step:
Calculate the maximum bearing load
5th Step:
Check calculated load for both y and z with the Maximum Permissible Load table for Fymax and Fzmax (right). This table illustrates the maximum permissible load on a single gliding element from the DryLin T carriage. Evaluating the maximum load on a single gliding element establishes a safety factor for the linear system.
6th Step:
Determine the maximum permissible speed for the calculated load from Step No. 4