GN 327 Solid Disk Safety Clutch Handwheels Aluminum, with Fixed Bearing Flange


GN 327 Aluminum Solid Disk Safety Clutch Handwheels, with Fixed Bearing Flange Type: A - Without handle
Type: A - Without handle
GN 327 Aluminum Solid Disk Safety Clutch Handwheels, with Fixed Bearing Flange Type: A - Without handle GN 327 Aluminum Solid Disk Safety Clutch Handwheels, with Fixed Bearing Flange Type: D - With revolving handle

Product description


GN 327 safety clutch handwheels feature the ultimate in health and safety at work standards because the handwheel, if disengaged, is mounted on a fixed component, the bearing flange. The wheel is fully disengaged from the rotating shaft.

The bearing flange can also accept the bearing of the shaft via the bearing bushing (code no. 1). This bearing bushing is a dry bearing (DU bushing). Normally, the shaft has a separate bearing and the bearing bushing serves to center the bearing flange.

Centering can also be effected by a centering ring (code no. 2) if the appropriate bore hole has been made at the machine side. In this case there is no need for the bearing bushings and no bearing friction (heating) will occur.


Rim turned and highly polished on all sides
Coupling attachments
  • Steel, surface hardened
  • Bearing surface ground resp.
    PTFE coated
  • Bearing steel flange, blackened finish

Revolving handle GN 598
Duroplast (Phenolic PF)
  • Black, shiny finish
  • Threaded spindle
    Steel, zinc plated, blue passivated finish

RoHS compliant

Technical drawing

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GN 327 Aluminum Solid Disk Safety Clutch Handwheels, with Fixed Bearing Flange sketch

Part Options / Table


AWithout handle
DWith revolving handle


1With bearing bushing
2With centering ring
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Dimensions in: Inch (change to Metric)
d1d2 +0.001
Bore with keyway
6.30K 14K 16K 18K 200.712.603.252.801.02
7.87K 14K 16K 18K 200.812.683.253.501.02

Build & Price

3D Product Configurator
Handwheel diameter d1
Bore d2

Identification No.

Details Hub with Coupling Attachments

Drawing Detail hubs GN 327
Drawing Detail hubs 2 GN 327

Assembly Instructions

Shaft bushing and countershaft pulley are delivered in two separate components. Before assembly, make sure that the shaft bushing can be pushed smoothly and free-moving over the shaft.

Proper function is guaranteed only if:

  • shaft bushing and bearing surface are level with each other
  • the shaft axis lies at a right angle to the bearing surface on the machine side.

Design with bearing bushing (identification no. 1)

Push the handwheel and the shaft bushing at the same time over the shaft, bolt down the bearing flange, and fix the shaft bush axially with the countershaft pulley.

Design with centring ring (identification no. 2)

The handwheel can be bolted at once through the centring ring above the bearing flange. Then push the shaft bushing onto the shaft and fix it axially with the countershaft pulley.

Application Notes

The relevant health and safety at work provisions state that handwheels must be attached to spindles such that they are not turned along together with the machine drive assembly. Safety clutch handwheels meet this requirement:

  • If not in operation, the wheel is disengaged. Shifting it in axial direction (pushing or pulling) will intermesh two serrated bushings, engaging the wheel with the shaft.

  • After releasing, the wheel will disengage again automatically.

A number of user notices for various design types are listed below. These notices are non-binding and given without liability. They do not constitute a warranty of proper function. The user must in any case determine whether the safety clutch handwheels are suitable for the intended purpose and use.

The safety clutch handwheels described under the application notes of GN 000.4, GN 000.5 and
GN 321.6 are characterized by the fact that they require no special machine-side measures for attaching. They are simply pushed over the shaft. However, the inevitable bearing friction generates a link between shaft and handwheel which needs to be kept in mind as specified above.
For applications with very high rotary speed, ultimate levels of safety at work and under continuous operation, the safety clutch handwheel with fixed bearing flange is the best possible solution. The separate bearing configuration means that the user notices given for types 1. to 3. do not apply.
However, this safety clutch handwheel is more complex, with a number of requirements to be met at the machine side.

Selected Part

Total US Dollars (net)
Call / Email for Delivery Time
Please note our quantity discounts (US Dollars).
≥ 50$283.54
Prop 65: Not compliant
Cancer and Reproductive Harm -
RoHS: Compliant
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)).
Weight: 3.761 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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Need Help?

Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time: 800-877-8351

Special Requests | Contact our sales team

GN 327-160-K14-A-1GN 327-160-K14-A-2GN 327-160-K14-D-1GN 327-160-K14-D-2GN 327-160-K16-A-1GN 327-160-K16-A-2GN 327-160-K16-D-1GN 327-160-K16-D-2GN 327-160-K18-A-1GN 327-160-K18-A-2GN 327-160-K18-D-1GN 327-160-K18-D-2GN 327-160-K20-A-1GN 327-160-K20-A-2GN 327-160-K20-D-1GN 327-160-K20-D-2GN 327-200-K14-A-1GN 327-200-K14-A-2GN 327-200-K14-D-1GN 327-200-K14-D-2GN 327-200-K16-A-1GN 327-200-K16-A-2GN 327-200-K16-D-1GN 327-200-K16-D-2GN 327-200-K18-A-1GN 327-200-K18-A-2GN 327-200-K18-D-1GN 327-200-K18-D-2GN 327-200-K20-A-1GN 327-200-K20-A-2GN 327-200-K20-D-1GN 327-200-K20-D-2

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