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Zero Backlash & Safety Couplings, Shaft-Hub Locking Devices

To view more information on zero backlash and safety couplings or shaft-hub locking devices select the manufacturer's logo below. Contact us for any further questions or to request a catalog. 

Ringfeder image Gerwah

 

 

coupling image

 

Magnetic Couplings

Gerwah Magnetic Coupling

Magnetic Hysteresis Couplings

High precision and smooth performance even at overload status. Specially structured to allow wear-free and soft 'sliding' of the coupling when the rated torque is exceeded. Used successfully in bottle capping machines and packaging plants.

Gerwah Magnetic Coupling

Magnetic Synchronous Couplings

Wear-free and contact-free connection with many advantages. The permanent magnets employed here create a force field which is used to transmit torque. This intelligent concept is absolutely made for overload protection and power transmission across barriers such as housings or shrouds.

Metal Bellows Couplings

Metal bellows couplings made by GERWAH are the perfect choice in many areas where torsionally rigid and backlash-free shaft connections are required. Quality products can compensate angular, axial and radial misalignments and transmit the rotational angle with highest precision. Compact shape and low moments of inertia can be taken for granted in self-aligning couplings.

Gerwah EKN
EKN
Gerwah DKN
DKN
GERWAH DKN/S
DKN/S
Gerwah PKA
PKA
Gerwah PKB
PKB
Gerwah PKN
PKN
Gerwah AKN
AKN
Gerwah AKN-H
AKN-H
Gerwah AKD
AKD
Gerwah AKD-H
AKD-H
Gerwah AK
AK
Gerwah CKN
CKN

Servo Insert Couplings

Backlash-free, vibration-damping, with a plug-in mounting: GERWAH's elastomer couplings are used in driving technology when precise, low-vibration power transmission is required. The flexible elements compensate angular, axial and radial misalignments of the shafts.

 
Gerwah DK/GS
DK/GS

Gerwah BK/GS
BK/GS
Gerwah BK/GS-S
BK/GS-S
Gerwah EK/GS
EK/GS
 
 
Gerwah ADS/R
ADS/R
Gerwah ADS/R-HADS/R-H
Gerwah ASS/A
ASS/A
   

Line Shafts

GERWAH's backlash-free line shafts are the perfect choice when large centre distances have to be covered. The elements are available with metal bellows or elastomeric spiders. Torque and rotating movements are transmitted with highest angular accuracy while misalignments are compensated easily. Installation lengths of up to six meters are possible.

 
Gerwah ASS/A-ZW
ASS/A-ZW
Gerwah ADS-R-H-ZW
ADS-R-H-ZW
Gerwah ADS/R-ZW
ADS/R-ZW
Gerwah AKN--ZW
AKN-H-ZW
 
 
Gerwah AKN-ZW
AKN-ZW
       

High Speed Shaft Couplings

Backlash-free Shaft Coupling: Damping, High-speed and Stiffness – All in one

Gerwah SMC
SMC

Safety Couplings

GERWAH's safety couplings protect engines, servos and connections from damage due to operation errors or malfunction. In case of overload, the high-speed cut-out function of the coupling disconnects the backlash-free connection of driver and driven component within milliseconds.

Gerwah DMK/L
DMK/L
Gerwah DMK/LD
DMK/LD
Gerwah DMK/B
DMK/B
Gerwah DMK/E
DMK/E
Gerwah DXM/C(L)
DXM/C(L)
Gerwah DXM/CD
DXM/CD
Gerwah DXM/N(L)
DXM/N(L)
Gerwah DXM/ND
DXM/ND
Gerwah DXM/E
DXM/E
Gerwah DXR
DXR
Gerwah DCM/S
DCM/S
Gerwah DCM/D
DCM/D
Gerwah DCM/V
DCM/V
         

RING-Flex® Torsionally Rigid Disc Couplings

RING-flex® disc couplings, which are torsionally rigid and flexible can compensate for angular, axial, and radial misalignments while transmitting torque backlash-free between driver and driven components. They operate without wear or maintenance, never need lubrication, and due to their all-metal construction are insensitive even to very high temperatures. RING-flex® couplings are pre-engineered to be connected to the shaft with variable RINGFEDER® keyless locking devices.

 
Gerwah Couplings with Bore and Keyway Hub Design
HS, HD and HC
Gerwah Couplings with Ringfeder Keyless Shrink Disc Hub Design
XHS, XHD, XHC
Gerwah Mounting with Ringfeder Locking Assembly
CCS, CCD, CHS, CHD, and CHC
Gerwah Couplings with Keyless Clamp Style Hub Design
LHS, LHD, LHC
 
 

Locking Devices

Ringfeder Locking Assemblies
Locking Assemblies - Original and premium internal locking devices, fitting inside a component or hub. Most commonly used on applications in general engineering to transmit high torques and axial loads. Common types include 7012, 7013.0, 7013.1, 7014 and 7015. Most are available in metric series for shafts from 20 mm to 1000 mm diameter and inch sizes for shafts from 3/4” to 7.875” diameter. (Also available in stainless steel)
Ringfeder Locking Assemblies
Locking Assemblies for bending loads - Extreme loads which these types of components are subject to (typically with a drum belt application), especially the high bending moment coupled with the simultaneous indispensable reliability and longest-possible service life were made with the best engineering possible creating a highly productive and reliable locking assembly. Common assemblies are RfN 7012, RfN 7012.2, RfN 7015.0 and RfN 7015.1 products. The development of the RfN 7515 Locking Assemblies has set a new benchmark in this segment with its quality, performance and price range.
Ringfeder Locking Elements

Locking Elements - Derived initially from the friction spring technology these tapered rings, type 8006, pair together to form a mechanical wedge between the shaft and component being mounted. Extremely flexible in design, they can generally be adapted to most applications. engineering to transmit light to medium torques and axial loads. Available in shaft sizes from 6 mm to 1000 mm.
(Also available in stainless steel)

Ringfeder Shrink Discs
Shrink Discs - These external clamping devices fit on the hub projection of the component and elastically compress the hub onto the shaft to transmit torque. Designed to be utilized as a single or in a split configuration, these devices transmit high torque. Common types include light duty, medium duty and heavy duty devices like 4051, the new 4061, 4071, 4091 and two piece units such as 4151, 4161, 4171 and 4191 from sizes 13mm to 1000mm bore. (Also available in stainless steel)
Ringfeder Shaft Couplings
Shaft Couplings - Flexible, cost-saving, easy to maintain: Smart-Lock-Set is the Shaft/Hollow Shaft connection from RINGFEDER®. Cylindrical Bushings allow the attachment of hollow shaft gear reducers and other hollow shaft connections to any metric and inch size solid shaft diameter.
Ringfeder Smart-Lock
Smart-Lock - Flexible, cost-saving, easy to maintain: Smart-Lock-Set is the Shaft/Hollow Shaft connection from RINGFEDER®. Cylindrical Bushings allow the attachment of hollow shaft gear reducers and other hollow shaft connections to any metric and inch size solid shaft diameter.



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