JW Winco

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GN 817.5 Indexing plungers for precision locating, plunger pin conical


GN 817.5 Indexing plungers, for precision locating, plunger pin conical Type: B - without rest position
Type: B - without rest position
GN 817.5 Indexing plungers, for precision locating, plunger pin conical Type: B - without rest position GN 817.5 Indexing plungers, for precision locating, plunger pin conical Type: C - with rest position

Product description


Indexing plungers GN 817.5 allow highly accurate positioning, with the guidance made by the positioning bushings DIN 172 / DIN 179 with cylindrical bore. The actual indexing bore is fitted with positioning bushings GN 172.1 / GN 179.1 with conical bores.

The conical shape of the indexing pin / the indexing bore makes the positioning virtually clearance-free and therefore highly precise.

Type C is used for such applications where the plunger has to stay in its retracted position. To achieve this, the knob is rotated by 90° degrees after being retracted. A notch keeps the plunger in this position.


  • blackened
  • Plunger pin hardened and ground

Plastic (Polyamide PA)
  • black, matte
  • not removable



Guide bushings DIN 172 (cylindrical, with collar)
Guide bushings DIN 179 (cylindrical, without collar)
Guide bushings GN 172.1 (conical, with collar)
Guide bushings GN 179.1 (conical, without collar)

Technical drawing

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GN 817.5 Indexing plungers, for precision locating, plunger pin conical sketch

Article options / Table


Bwithout rest position
Cwith rest position
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Pin h6

l9Spring load
in N ≈


Build & Price

Open 3D configurator
Bolt diameter d1
Length l1

Construction and assembly instructions

Sketch GN 817.5

The length l7 is determined by the penetration depth of the plunger pin into the cone of the bushing.

The length l8 must ensure that the plunger pin fully disengages, bushing length and plate thickness plus any gap can then be selected within certain margins.
If engaged, the pin must have a minimum remaining stroke of 0,5 mm to make sure that the conical section of the pin is located without clearance in the cone of the guide bushing.
Two different plunger pin lengths l1 are available for each indexing plunger diameter d1 (see product table).
For a safe remaining stroke length: l9 = l1 - 0,5 mm
For mounting bushings with tolerance n6, a hole with tolerance H7 corresponding to the external diameter is usually provided.

Selected Part (How to order)

Total (net)
plus VAT 4,19 €
gross 26,23 €
In stock
Weight: 0,043 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 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount
With a total value (net) per order:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 50,00 €
All prices in accordance with our price list No. 53, valid from 1 May 2021, plus VAT only valid for Germany.

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Our Service-Team is available from Monday to Friday from 7:00 until 17:30: +49 7723 6507 - 100

To the customised elements | To the contact persons

GN 817.5-8-26-CGN 817.5-8-20-CGN 817.5-10-32-CGN 817.5-6-24-CGN 817.5-8-20-BGN 817.5-8-26-BGN 817.5-6-18-CGN 817.5-10-24-CGN 817.5-10-24-BGN 817.5-6-18-BGN 817.5-6-24-BGN 817.5-10-32-B

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