Installing the Flat Roller
Combination of 90° V Surface and Flat Surface
The Flat Roller can be mounted directly onto the guide surface on the 90° V surface and flat surface. Table1 shows examples of their combinations.
- Note) The roller diameter (Da) for model numbers containing symbol V at the end represents the value times that of types for the same model number with no symbol.
The diameter of the roller to be combined with 90°V surface will be times that of the roller on the flat surface.
For example, when using model FT4035 (roller diameter: ø 4) on the flat surface, use model FTW4030V (roller diameter: 2.828) on the V surface. Performance of the Flat Roller is significantly affected by the contact state of the upper and lower raceways. You can check the fit before installing the Flat Roller by designing the raceways as indicated in Fig. 1.
| 90°V surface | Flat surface | ||
|---|---|---|---|
| Model No. | Roller diameter Da |
Model No. | Roller diameter Da |
| FTW 4030V | 2.828 | FT 4030 | 4 |
| FTW 4030V | 2.828 | FT 4035 | 4 |
| FTW 5035V | 3.535 | FT 5038 | 5 |
| FTW 5035V | 3.535 | FT 5043 | 5 |
| FTW 5045 | 5 | FT 10060V | 7.071 |
| FTW 5050 | 5 | FT 10060V | 7.071 |
| FTW 10070V | 7.071 | FT 10080 | 10 |
Other Example of Installation
In locations where a lifting load or an overhang load is applied, the Flat Roller can be installed as shown in Fig.2.
For details on clearance adjustment from the side face, see Example of Clearance Adjustment for the Cross Roller Guide on Example of Clearance Adjustment .
Determining the Flat Roller Length
The Flat Roller travels 1/2 of the travel distance of the table in the same direction. Therefore, it is necessary to calculate the stroke length and the Flat Roller length as indicated below.
To keep the Flat Roller under the table, obtain Flat Roller length ℓS as follows.
The Flat Roller length:
Connecting Flat Roller Units
When it is necessary to join two or more Flat Roller units for an extended period, use a joint plate as shown in Fig. 4 to join them. Indicate the overall length that will actually be used when ordering. Models FT10054, FT10080, and FTW have connecting components already mounted to the main unit, meaning that no joint plate is needed.
Note, however, that Model FT2010 units cannot be joined together.
Guiding the Flat Roller
To guide model FT or FT-V, follow the instruction as shown in Fig. 5 .
