GN 000.5 Safety Clutch Assemblies Steel, for Safety Clutch Handwheels, with Needle Bearing


GN 000.5 Steel Safety Clutch Assemblies, for Safety Clutch Handwheels, with Needle Bearing

Product description


The use of needle bearings and the hardened bearing surfaces make the clutch engagement extremely smooth. This is also assisted by the finer serrations and the increased length of the clutch assembly.

The use at higher shaft speeds and the longer service life are further advantages of the needle bearing.

An oil hole is provided which is connected to a pressure oiler in the wheel hub when the safety clutch handwheel is completely assembled.

The coupling attachment is axially secured in the handwheel hub by a clamping nut.


Steel, hardened
Ground bearing surfaces


Technical drawing

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GN 000.5 Steel Safety Clutch Assemblies, for Safety Clutch Handwheels, with Needle Bearing sketch

Part Options / Table

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Dimensions in: Inch (change to Metric)
Handwheel Ø
GN 321
GN 322
GN 323
d2 +0.001
Minimum Ø
of wheel hub
d6 -0.002
Location hole
of wheel hub
l1l2 ±0.004
Length of
wheel hub
14.92K 121.140.671.140.9841.650.7090.471.020.16
15.51K 121.140.671.140.9841.650.7480.471.020.16
25.51K 141.300.831.301.1421.890.7480.551.180.16
26.30K 141.300.831.301.1421.890.7870.551.180.16
37.87K 181.541.021.541.3781.970.9450.511.420.16
49.84K 221.811.181.811.6142.131.1020.511.650.16

Build & Price

3D Product Configurator
Bore with keyway d2

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 details given at the application notes of GN 000.4 apply in principle also to these safety clutch handwheels.
With their needle bearings, they have the advantage over friction bearings that they can be used for somewhat higher speeds due to their substantially lower friction, lower wear and tear and lower sensitivity to lubrication.
Owing to their larger construction length and lower friction (hardened contact surfaces) and finer intermeshing, these wheels are also easier to engage.

Selected Part

Total US Dollars (net)
In Stock: 14
In Stock
Please note our quantity discounts (US Dollars).
≥ 50$103.64
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: 0.286 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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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 000.5-1-K12GN 000.5-2-K14GN 000.5-3-K18GN 000.5-4-K22

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