GN 2244 Bellows Couplings Stainless Steel, with Aluminum Clamping Hub, with Metric-Inch Bores


GN 2244 Stainless Steel Bellows Couplings, with Aluminum Clamping Hub, with Metric-Inch Bores

Product description


Bellows couplings GN 2244 transmit angle positions and torques with extreme precision and zero backlash. The metal bellows also reliably compensates for shaft misalignments and runout tolerances. The clamping hubs make bellows couplings very easy to install.

They are used in applications where precise position and movement transmission is required, such as in the servo drive systems of machine tools and in industrial robots.


Anodized finish, natural color

Stainless steelNI AISI 304

Socket cap screws DIN 912
Steel, blackened finish

Crimp ring

Temperature resistant up to 248 °F (120 °C)


On request

Bore with keyway

Technical drawing

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GN 2244 Stainless Steel Bellows Couplings, with Aluminum Clamping Hub, with Metric-Inch Bores sketch

Part Options / Table

Bore code

BWithout keyway
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Dimensions in: Inch (change to Metric)
d1d2 - d3 +0.001
Recommended shaft tolerance -0.001
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Dimensions in: Inch (change to Metric)
shaft insertion depth
l3l4Tightening torque
of the screw
in Nm ≈
0.75M 21.180.410.120.270.5
1.06M 2.51.380.490.140.410.9
1.26M 31.810.610.170.471.5
1.57M 42.010.630.200.593.5

Build & Price

3D Product Configurator
Outside diameter d1
Bore code

Bore d2
Bore d3
Material (Hub)

Material (Bellows)

Technical Values

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d1Rated torque
in Nm
Max. speed
Moment of inertia in kgm2Static
torsional stiffness
in Nm/rad
191.5330008.6 x 10-7170
272.3230003.6 x 10-6800
324.5190001.1 x 10-51600
4010150002.8 x 10-52700
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d1Max. shaft misalignment
Lateral in mm

Axial in mm

Angular in °
190.2± 0.51.5
270.2± 0.51.5
322± 0.71.5
402± 11.5

Misalignment and Runout Tolerances

Like all mechanical parts, shafts are subjected to manufacturing and assembly tolerances that generally cannot be entirely eliminated even with extensive technical measures.
If these deviations are not taken into account in the design, the result can be vibrations, running noises, and wear or damage to the shafts and their bearings.
Suitable couplings not only are able to effectively compensate for misalignment and runout errors, they also greatly simplify the assembly process, thereby reducing the overall labor required.
Shaft misalignment and runout errors can vary in nature and should always be taken into consideration when selecting the appropriate coupling.

Error type

Misalignment diagram

The axes of the shafts are in fact parallel, but they are offset laterally and do not line up.

Misalignment diagram{St:_}Lateral

The axes of the shafts do not lie in the same plane; they meet at a certain angle.

Misalignment diagram{St:_}Angular

The shafts move axially along the axis of rotation.

Misalignment diagram{St:_}Axial

The shafts move radially out of the center of the axis of rotation.

Misalignment diagram{St:_}Runout

Shaft Insertion Depth

For correct fastening of the coupling hubs, the shaft must be installed according to the recommended shaft insertion depth l2. The shaft insertion depth l2 is specified in the standard sheet of the respective coupling.
If the insertion depth is too low, the shaft could slip out of the coupling, or the clamping hub could break. If the shaft is inserted too far, this can cause interference within the coupling, leading to damage.

Shaft Insertion Depth

Application Example

Anwendungsbeispiele GN 2244

Static Torsional Stiffness and Temperature

The diagrams show the change in static torsional stiffness within the permissible operating temperature range, under the assumption that the static torsional stiffness at 68°F (20 °C) is 100 percent. The torsional stiffness of the couplings decreases with increasing temperature.

Statische Torsionssteife und Temperatur | GN 2244

Restoring Force – Eccentricity

When the shaft ends are installed in eccentric arrangements, the coupling constantly attempts to return to its neutral position. The resulting force is referred to as restoring force.
If the couplings are installed with the lowest possible eccentricity, the resulting restoring forces are lower. This also reduces the force acting on the shaft bearing.

Rückstellkraft - Exzentrizität | GN 2244

Restoring Force – Pressure

If the coupling is under pressure, subject to compressive load in the axial direction, it will strive to return to its neutral position. The force that counteracts the compressive force is referred to as restoring force.
Lowering the compression acting on a coupling results in a lower restoring force and less force exerted axially. This must always be taken into account in dimensioning the coupling.

Rückstellkraft - Druck | GN 2244

Selected Part

Total US Dollars (net)
Call / Email for Delivery Time
Please note our quantity discounts (US Dollars).
≥ 25$53.38
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: 0.035 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 2244-19-B5-3/16-AL-NIGN 2244-19-B5-1/4-AL-NIGN 2244-19-B6-3/16-AL-NIGN 2244-19-B6-1/4-AL-NIGN 2244-19-B8-3/16-AL-NIGN 2244-19-B8-1/4-AL-NIGN 2244-27-B6-1/4-AL-NIGN 2244-27-B6-3/8-AL-NIGN 2244-27-B6-1/2-AL-NIGN 2244-27-B8-1/4-AL-NIGN 2244-27-B8-3/8-AL-NIGN 2244-27-B8-1/2-AL-NIGN 2244-27-B10-1/4-AL-NIGN 2244-27-B10-3/8-AL-NIGN 2244-27-B10-1/2-AL-NIGN 2244-32-B10-1/4-AL-NIGN 2244-32-B10-3/8-AL-NIGN 2244-32-B10-1/2-AL-NIGN 2244-32-B10-5/8-AL-NIGN 2244-32-B12-1/4-AL-NIGN 2244-32-B12-3/8-AL-NIGN 2244-32-B12-1/2-AL-NIGN 2244-32-B12-5/8-AL-NIGN 2244-32-B14-1/4-AL-NIGN 2244-32-B14-3/8-AL-NIGN 2244-32-B14-1/2-AL-NIGN 2244-32-B14-5/8-AL-NIGN 2244-40-B12-3/8-AL-NIGN 2244-40-B12-1/2-AL-NIGN 2244-40-B12-5/8-AL-NIGN 2244-40-B12-3/4-AL-NIGN 2244-40-B12-7/8-AL-NIGN 2244-40-B15-3/8-AL-NIGN 2244-40-B15-1/2-AL-NIGN 2244-40-B15-5/8-AL-NIGN 2244-40-B15-3/4-AL-NIGN 2244-40-B15-7/8-AL-NIGN 2244-40-B19-3/8-AL-NIGN 2244-40-B19-1/2-AL-NIGN 2244-40-B19-5/8-AL-NIGN 2244-40-B19-3/4-AL-NIGN 2244-40-B19-7/8-AL-NI

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