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VTD
Torque limiting knobs
Technopolymer
Description
Main specifications
Knob body
Glass-fibre reinforced polyamide based (PA) technopolymer, black colour, matte finish.
Centre cap
Polyamide-based (PA) technopolymer, RAL 7035 grey colour, matte finish.
Torque limiting mechanism
Hardened steel.
Standard executions
Zinc-plated steel boss with threaded blind hole.
- VTD-AZ-2: maximum torque 2Nm.
- VTD-AZ-3: maximum torque 3Nm.
- VTD-AZ-4: maximum torque 4Nm.
- VTD-AZ-6: maximum torque 6Nm.
General information
Features and applications
VTD knob is used when the applied tightening torque must not exceed a certain value.
The transmission of the torque from the knob to the clamping element takes place by means of a spring system which, upon reaching the required torque, releases the knob. When the established torque is exceeded, a 'click' will be heard to indicate that maximum tightening has been achieved.
By turning the knob anticlockwise the mechanism (Elesa patent) unlocks.
The knob has been tested up to 60000 tightening cycles and the values of the torque were unchanged.
 Other executions
Special executions on request
- Knobs with threaded screw.
- Knobs with different values of max. torque.
- Knobs with stainless steel metal parts and NBR synthetic rubber O-Ring.
- Knobs with cap supplied in other colours.
| D | d | L | d1 | l2 | h | C# [Nm] |
 |
|||
|---|---|---|---|---|---|---|---|---|---|---|
| Code | Description | Actions | ||||||||
| 35601-2N | VTD.60-AZ-M6-2Nm | 60 | M6 | 50.5 | 27.5 | 20 | 10 | 2 | 100 |
|
| 35601-3N | VTD.60-AZ-M6-3Nm | 60 | M6 | 50.5 | 27.5 | 20 | 10 | 3 | 90 |
|
| 35602-2N | VTD.60-AZ-M8-2Nm | 60 | M8 | 50.5 | 27.5 | 20 | 12 | 2 | 97 |
|
| 35602-3N | VTD.60-AZ-M8-3Nm | 60 | M8 | 50.5 | 27.5 | 20 | 12 | 3 | 90 |
|
| 35611-4N | VTD.80-AZ-M8-4Nm | 80 | M8 | 53.5 | 27.5 | 22 | 12 | 4 | 100 |
|
| 35611-6N | VTD.80-AZ-M8-6Nm | 80 | M8 | 53.5 | 27.5 | 22 | 12 | 6 | 110 |
|
| 35612-4N | VTD.80-AZ-M10-4Nm | 80 | M10 | 53.5 | 27.5 | 22 | 12 | 4 | 109 |
|
| 35612-6N | VTD.80-AZ-M10-6Nm | 80 | M10 | 53.5 | 27.5 | 22 | 12 | 6 | 100 |
|
| 35613-4N | VTD.80-AZ-M12-4Nm | 80 | M12 | 53.5 | 27.5 | 22 | 12 | 4 | 100 |
|
| 35613-6N | VTD.80-AZ-M12-6Nm | 80 | M12 | 53.5 | 27.5 | 22 | 12 | 6 | 100 |
|
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