GN 700 Adjustable knobs with stepless positioning

Photo

GN 700 Adjustable knobs Type: S - with standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10
Type: S - with standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10
GN 700 Adjustable knobs Type: S - with standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10 GN 700 Adjustable knobs Type: A - with arrow GN 700 Adjustable knobs Type: B - neutral, without arrow or scale GN 700 Adjustable knobs Type: KS - with customized scale

Product description

Information

With this adjustable knob GN 700 a shaft can be infinitely adjusted in both directions. The anti-backlash mechanism with a max. load of 15 Nm ensures the firm locking of the shaft in any position.

This mechanism prevents any uncontrolled movement of the shaft. The locking action is a safety feature to prevent unwanted re-adjustments caused by backlash and vibration.

Scale and arrow on the control knobs are indelibly marked and easily legible.

Besides the standard scale (Type S) the control knob version may be supplied with any other scale (Type KS).

Regarding design, numbering run, numbering position and numbering sequence of the scale please see the layout for scale rings on the order sheet „How to order Graduations“



Specification

Attachment part and bushing
Steel
blackened

Blocking mechanism
Steel
hardened and ground

Scale ring and rotating knob
Aluminum
black anodized

Scale / arrow
  • engraved with laser precision
  • centered between two mounting holes


RoHS

On request

special graduations
see „How to order Graduations“

Technical drawing

3D
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GN 700 Adjustable knobs sketch

Article options / Table

Type

Awith arrow
Bneutral, without arrow or scale
Swith standard scale 0...9, 100 graduations, acc. d1/100 A RA 0-10-20...90 / 10
KSwith customized scale
Show / Hide columns
d1d2 H7
Bore with keyway K
d3d4 -0,2d5l1l2l3
66K 12K 1452555,544940

Build & Price

Outside diameter d1
Bore d2
Type




Description

The anti-backlash mechanism which operates on the principle of a bidirectional freewheeling and antireversing basis allows the transfer of movement in both directions without backlash. The adjustable knob is not suitable for applications on machines or equipments which are exposed to vibrations.

The bushing is connected by the key and keyway to the revolving shaft.

The location ring remains static and centrally positioned by the bushing and the two pinch rollers, fixed to the machine frame or housing by three screws.

The rotating knob with the knurled barrel is carried by the bushing.

The scale ring is firmly anchored to the bushing and the driven shaft by two countersunk screws.

If the knob is repositioned, one of the follower pins – depending on the direction of rotation – pushes the pinch roller against the spring into an idling position which releases the bushing and shaft to rotate freely.

The second follower pin on the opposite side reduces the movement of its pinch roller and ensures at the same time a firm grip and forward movement of the bushing while the first pinch roller remains in an idling position.

When releasing the knob, the spring will push the pinch roller back into the grip position, thus linking the bushing again with the static section.

The scale ring is connected firmly with the bushing and any readjustment of the shaft can be accurately controlled.

This infinitely adjustable knob cannot, however, be used in such cases where the shaft to be adjusted runs ahead of the adjustment. The anti-backlash mechanism in this knob cannot be used as a bearing for the driven shaft.

Hints for installation

A perfect functioning can only be guaranteed if the shaft of the machine is positioned at a perfect right angle to the contact surface of the static part.

Selected Part (How to order)

Total (net)
129,63
plus VAT 24,63 €
gross 154,26 €
Ask for delivery time
Weight: 0,560 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 Euro -> 10 % discount
from 275,00 Euro -> 20 % discount
from 375,00 Euro -> 30 % discount
With a total value (net) per order:
All prices in accordance with our price list No. 52, valid from 1 May 2019, plus VAT only valid for Germany.

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