ROTEX Flexible Jaw Couplings Standard Taper Clamping Sleeve Ring Hubs AFN BFN AH SH CF CFN DF DFN ZS-DKM-SH ZRS ZR BTAN SBAN AFN-SB Special SD Shaft Coupling
ROTEX® torsionally flexible jaw couplings
ROTEX torsionally flexible jaw couplings are elastomer couplings characterized by a compact design.
In spite of low weights and mass moments of inertia of the elastomer couplings they are able to transmit high torques. The compact shaft couplings are characterized by a long service life and sound operating characteristics generated by allover machining.
Overview: ROTEX® torsionally flexible jaw couplings
ROTEX torsionally flexible jaw couplings are elastomer couplings characterized by a compact design.
ROTEX® Standard
0 - 35,000 Nm / torsionally flexible jaw coupling
The original - renowned industrial standard
The torsionally flexible jaw coupling ROTEX Standard is an elastomer coupling with feather keyway and particularly low-priced due to its simple structure.
For mounting the hubs of the elastomer coupling are simply pushed on the shafts and axially fastened via setscrews.
Our flexible elastomer coupling ROTEX Standard is provided with splines acc. to DIN and SAE as a standard.
The torsionally flexible ROTEX couplings are suitable for universal use and applied as a flexible shaft connection in almost all ranges of general mechanical and plant engineering.
Features
torsionally flexible coupling for torsional vibration-damping power transmission
low-cost standard type
standard spiders made of high temperature-resistant T-PUR
splines acc. to DIN and SAE
complying with ATEX (acc. to EU directive 2014/34/EU)
Product Details
The coupling hubs of the flexible shaft coupling are available in the following materials:
- steel
- sintered steel
- stainless steel
- aluminium wrought products
- aluminium diecast
- cast iron
- nodular iron
ROTEX® taper clamping sleeve
0 - 12,500 Nm / torsionally flexible jaw coupling
Jaw coupling can be combined with taper clamping sleeves
The torsionally flexible jaw coupling ROTEX for taper clamping sleeve is an elastomer coupling that can be combined with various types of taper clamping sleeves.
The compact design of this elastomer coupling in combination with the slide fit facilitates the assembly and axial alignment of the flexible shaft coupling.
The clamping screws to be used additionally secure the friction connection by a positive-locking fit.The torsionally flexible jaw coupling ROTEX for taper clamping sleeve is an elastomer coupling that can be combined with various types of taper clamping sleeves.
The compact design of this elastomer coupling in combination with the slide fit facilitates the assembly and axial alignment of the flexible shaft coupling.
The clamping screws to be used additionally secure the friction connection by a positive-locking fit.
Features
flexible jaw coupling for combining with taper clamping sleeves / taperlock clamping sleeves
slide fit facilitates axial alignment of the coupling
compact design
Additional protection by positive-locking fit, each half of the clamping screws being in the coupling hub and taper clamping sleeve
complying with ATEX (acc. to EU directive 2014/34/EU)
ROTEX® clamping ring hubs
0 - 4,500 Nm / torsionally flexible jaw coupling
Jaw coupling with clamping ring hubs for fricitionally engaged shaft-hub-connections
ROTEX clamping ring hubs are torsionally flexible elastomer couplings with an integrated clamping system for frictionally engaged shaft-hub-connections.
Thanks to the integrated clamping system the ROTEX clamping ring hubs are able to transmit high friction torques. The internal clamping screws allow for easy assembly of the coupling.
Due to the rotation symmetry this type is additionally characterized by particularly smooth running
Features
torsionally flexible jaw couplings with integrated clamping system
friction connection for cylindrical shafts
application up to a circumferential speed of 40 m/s
particularly smooth running
high friction torques
ROTEX® clamping hubs
0 - 4,500 Nm / torsionally flexible jaw coupling with clamping hubs
Jaw coupling with clamping hubs for spline bores acc. to DIN and SAE
ROTEX clamping hubs are torsionally flexible elastomer couplings with clamping hubs and particularly suitable for applications with reversing operation.
Our clamping couplings are provided with spline bores acc. to DIN and SAE as a standard (for standard splines see catalogue). Clamping, i. e. axial fastening of the hub, is realised via cap screws.
Easy assembly and disassembly of the hubs of this clamping coupling.
Features
fail-safe clamping coupling (clamping hubs)
standard hub material steel
suitable in combination with spline bores acc. to DIN 5480, DIN 5482, SAE J498 as well as DIN 9611 / ISO 500 (p. t. o. shaft), DIN 5463 (ISO 14), DIN 5481 and DIN 5472
balanced based on 3D-CAD data
particularly suitable for applications with reversing operation
ROTEX® AFN
0 - 35,000 Nm / coupling as a flange type
Jaw coupling as a double flange type
ROTEX AFN is a torsionally flexible elastomer coupling as a double-flange type and particularly suitable for applications in heavy engineering.
Type AFN of the ROTEX elastomer coupling is characterized by the double flange type allowing for radial assembly and disassembly of the shaft coupling or elastomer without displacing the driving or driven side.
The flange hub 4N of the torsionally flexible jaw coupling as a flange type ROTEX AFN is made of steel and the driving flange 3Na is made of GJS.
Features
fail-safe jaw coupling
complying with UKEX (acc. to UKEX directive SI 2016:1107)
complying with ATEX (acc. to EU directive 2014/34/EU)
application up to a circumferential speed of 40 m/s
compensating for displacements (axial, radial, angular)
ROTEX® BFN
0 - 35,000 Nm / coupling as a flange type
ROTEX BFN is a torsionally flexible elastomer coupling as a flange type (flange coupling) and particularly suitable for applications in heavy engineering.
Type BFN of the ROTEX elastomer coupling is characterized by the flange type allowing for radial assembly and disassembly of the shaft coupling or the elastomer without displacing the driving or driven side.
The flange hub 4N of the torsionally jaw coupling as a flange type ROTEX BFN is made of steel and the driving flange 3Na is made of GJS.
Features
fail-safe jaw coupling
low inertia
complying with ATEX (acc. to EU directive 2014/34/EU)
complying with UKEX (acc. to UKEX directive SI 2016:1107)
damping vibrations
ROTEX® AH
0 - 12,500 Nm / torsionally flexible coupling with split hubs
Radial assembly/disassembly of the jaw coupling via four screws only
The torsionally flexible jaw coupling ROTEX AH is an elastomer coupling with split hubs (half shell coupling). This design is also referred to as drop-our center design coupling, half shell coupling, clamping coupling, coupling with split hubs or elastomer coupling with split clamping hub.
The hubs of the ROTEX elastomer coupling type A-H are split. Easy radial asssembly/disassembly of the half shell coupling made by tightening and unscrewing four screws only. The version is available both with and without feather keyway.
Features
assembly/disassembly via four screws
compensating for displacements (axial, radial, angular)
maintenance-free
complying with ATEX (acc. to EU directive 2014/34/EU)
complying with UKEX (acc. to UKEX directive SI 2016:1107)
ROTEX® SH
0 - 4,500 Nm / torsionally flexible coupling with split hubs
Coupling with split hubs / SPLIT hubs
The torsionally flexible jaw coupling ROTEX SH is an elastomer coupling with split hubs / SPLIT hubs (half shell coupling) easy to service and is characterized by easy assembly and disassembly.
This design is also referred to as drop-our center design coupling, half shell coupling, clamping coupling, coupling with split hubs or elastomer coupling with split clamping hub.
Elastomer coupling with split hubs / SPLIT hubs:
The hubs of the half shell coupling ROTEX SH have been split into two halves precisely, mechanically and reliably by "cracking". A rough surface with positive-locking connection ensuring an accurate fit of the two halves is generated. The contoured, rough cracked surfaces ensure ideal centering of the hub halves. The split hubs allow to assemble and disassemble the elastomer coupling radially via four screws without displacing the adjacent power packs. This makes the elastomer coupling with split clamping hub particularly easy to assemble and service.
Features
material cast iron
complying with ATEX (acc. to EU directive 2014/34/EU)
easy assembly/disassembly via four screws
centering of both hub halves through the cracked surface
displacing the power packs is not necessary for assembly
ROTEX® CF
0 - 35,000 Nm / jaw coupling with flange connection on one side
The torsionally flexible jaw coupling ROTEX CF is an elastomer coupling with a flange connection on one side (flange coupling) and particularly suitable for applications in heavy engineering.
Type CF of the ROTEX elastomer coupling is characterized by a short mounting length of the flange connection on one side.
The driving flanges and hubs are available from stock. The flange is available from stock both with tapped holes and without hole/without centering.
Features
torsionally flexible jaw coupling as a flange type for heavy engineering
driving flanges and hubs available from stock
flange with tapped holes available from stock
flange without bore and without centering available from stock
material: driving flange 3b made of GGG40 (nodular iron)
ROTEX® CFN
0 - 35,000 Nm / jaw coupling with flange connection on one side
The torsionally flexible jaw coupling ROTEX CFN is an elastomer coupling with a flange connection on one side (flange coupling) and particularly suitable for applications in heavy engineering.
Type CFN of the ROTEX elastomer coupling is characterized by the double flange design allowing for radial assembly and disassembly of the shaft coupling or elastomer without displacing the driving or driven side.
The driving flange and the hubs are available from stock.
Features
torsionally flexible jaw coupling as a flange type for heavy engineering
radially mountable without displacing the driving components
particularly short mounting length
flange material: 3b made of GGG40 (nodular iron)
customized mounting flanges on request
ROTEX® DF
0 - 35,000 Nm / jaw coupling with flange connection on both sides
The torsionally flexible jaw coupling ROTEX DF is an elastomer coupling with flange connection on both sides (flange coupling) and particularly suitable for applications in heavy engineering.
The driving flanges and hubs are available from stock. The flanges are available from stock both with tapped holes and without hole/without centering.
Features
torsionally flexible jaw coupling (flange coupling) with flange connection on both sides for heavy engineering
damping vibrations
axial plug-in
fail-safe
maintenance-free
ROTEX® DFN
0 - 35,000 Nm / jaw coupling with flange connection on both sides
The torsionally flexible jaw coupling ROTEX DFN is an elastomer coupling with flange connection on both sides (flange coupling) for screwing of driving and driven machine.
This torsionally flexible coupling is particularly suitable for applications in heavy engineering.
The ROTEX DFN elastomer coupling with flange connection on both sides can be radially assembled and disassembled without displacing the adjacent power packs. This allows for quick replacement of spiders, too.
The driving flanges and hubs are available from stock.
Features
torsionally flexible jaw coupling (flange coupling) with flange connection on both sides for heavy engineering
for screwing of driving and driven machine
radially mountable without displacing the driving components
quick replacement of spider possible
flange material: 3b made of GGG40 (nodular iron)
ROTEX® ZS-DKM-SH
0 - 2,400 Nm / double-cardanic coupling with split hubs
The torsionally flexible jaw coupling ZS-DKM-SH is a double-cardanic elastomer coupling with split hubs (SH SPLIT).
The ROTEX ZS-DKM-SH with SPLIT hub provides the advantage that the coupling can be radially assembled and disassembled without displacing the adjacent power packs. The hub resp. connection of the two hub halves is not weakened by cracking.
This design is also referred to as drop-our center design coupling, half shell coupling, clamping coupling, coupling with split hubs or elastomer coupling with split clamping hub.
The hubs of the double-cardanic jaw coupling ROTEX ZS-DKM-SH are mechanically split by cracking and screwed back together with the assembly. This elastomer coupling is ideally suitable to offset larger radial displacements. Due to the split hubs the coupling can be radially assembled and disassembled without displacing the adjacent power packs.
Features
double-cardanic jaw coupling for large shaft displacements
good damping properties due to double arrangement of spiders
spacers adapted to drop-out center length of standard pumps
for bigger radial displacements generated by thermal expansion
assembly/disassembly via four screws
ROTEX® ZRS
0 - 520 Nm / torsionally flexible intermediate shaft coupling with SPLIT hubs or half shell hubs
ROTEX ZRS jaw coupling for bridging smaller and bigger shaft distances
The lightweight ZRS made of high-strength aluminium captivates by a very high overall stiffness.
The high stiffness of the aluminium pipe arises from the structure consisting of two pipes that are connected via webs - the ROTEX cams.
The critical bending speed of the coupling is positively affected; shaft distances up to 4,000 mm can be bridged subject to the very low bending.
In addition the speed referring to the shaft distance dimension can be significantly higher than with the renowned intermediate pipe coupling with steel pipe.
The high stiffness of the pipe allows for torque transmission from the soft 92 ShA spider to the torsionally stiff 64 ShD spider.
Fields of application of the torsionally flexible ROTEX ZR-S intermediate pipe coupling:
The ZRS intermediate pipe coupling is used wherever large shaft distances must be bridged, e. g. on scissors lifts and conveyor systems in the lower torque range.
The wide range of ROTEX hubs can be combined with the ZRS pipe. For example in combination with the split ROTEX-SH-SPLIT hubs they allow for radial assemby and disassembly without displacing driving and driven side.
Please note: This type is not permissible for crane and hoist drives.
Features
double-cardanic jaw coupling with half shells (half shell coupling) and intermediate shaft (cardan shaft)
lightweight made of high-strength aluminium convinces by a very high overall stiffness.
for bridging large shaft distances
good damping properties due to double arrangement of spiders
intermediate pipe radially dismountable with flexible bearing in the GS spider
ROTEX® ZR
0 - 1,920 Nm / torsionally flexible half shell coupling with intermediate shaft
Jaw coupling for bridging large shaft distances
The torsionally flexible jaw coupling ROTEX ZR is a half shell coupling (coupling with split hub) with intermediate shaft for bridging large shaft distances.
Couplings with split hubs are also referred to as drop-out center design couplings, half-shell couplings, clamping coupling or elastomer couplings with split clamping hubs.
The intermediate shaft coupling ROTEX ZR allows for bridging large shaft distances. Its half shell clamping hubs allow for radial assembly/disassembly (drop-out center design coupling). Due to its double-cardanic arrangement the intermediate shaft coupling is able to offset large displacements.
Fields of application of the torsionally flexible half shell coupling ROTEX ZR with intermediate shaft:
This intermediate shaft coupling with half shell clamping hubs is used wherever large shaft distances must be bridged, e. g. on scissors lifts and conveyor systems in the lower torque range.
Please note: This type is not permissible for crane and hoist drives!
Features
double-cardanic jaw coupling with half shells (half shell coupling) and intermediate shaft (cardan shaft)
for bridging large shaft distances
good damping properties due to double arrangement of spiders
intermediate pipe radially dismountable with flexible bearing in the GS spider
compensating for large displacements due to double-cardanic design
ROTEX® BTAN
0 - 12,500 Nm / torsionally flexible jaw coupling with brake drum
The torsionally flexible jaw coupling ROTEX BTAN is an elastomer coupling combined with a brake drum. ROTEX type BTAN is used as a holding brake, but also a a service brake.
The ROTEX jaw coupling with brake drum (drum brake) to be mounted to external drum brakes with double shoes. The brake drum is positioned on the driven side. For combinations with a brake drum please note the potentially resulting high circumferential speed - KTR recommends dynamic balancing with high-speed drives from 30 m/s.
Fields of application of our torsionally flexible jaw coupling ROTEX BTAN with brake drum (drum brake):
This combination of coupling and brake is used wherever holding brakes or service brakes are required, e. g. on conveyor belts, generators, turbine drives, industrial fans, cranes, hoists, etc.
Safety-relevant drives are preferably combined with ROTEX hubs made of steel/GJS. Applications with moderate demands can be combined with GJL hubs.
Couplings and brakes by KTR:
The customer benefits from being supplied by one single source with the option to develop the brakes (KTR-STOP or EMB-STOP) as well. The KTR-STOP brake is hydraulically actuated and EMB-STOP is electromechanically actuated.
Features
each coupling type can be combined with various sizes of brake drums
following DIN 15431/15435
axial plug-in
damping vibrations
compensating for displacements (axial, radial, angular)
ROTEX® SBAN
0 - 12,500 Nm / jaw coupling with brake disk
The ROTEX jaw coupling with brake disk for disk for brake calipers. Usually the brake disk is positioned on the driven side having the highest mass moment of inertia. For combinations with brake disks please note the potentially resulting high circumferential speed - KTR recommends dynamic balancing with high-speed drives from 30 m/s.
Fields of application of our torsionally flexible jaw coupling ROTEX SBAN with brake disk (disk for brake caliper):
This combination of coupling and brake disk is used wherever holding brakes or service brakes are required, e. g. on conveyor belts, generators, turbine drives, industrial fans, cranes, hoists, etc.
Safety-relevant drives are preferably combined with ROTEX hubs made of steel/GJS. Applications with moderate demands can be combined with GJL hubs.
Couplings and brakes by KTR:
The customer benefits from being supplied by one single source with the option to develop the brakes (KTR-STOP or EMB-STOP) as well. The KTR-STOP brake is hydraulically actuated and EMB-STOP is electromechanically actuated.
Features
torsionally flexible jaw coupling with disk for brake calipers
Every coupling type can be combined with various sizes of brake disks
The brake disk must be fastened on the shoulder of hub 1Nd
The max. braking torque must not exceed the maximum torque of the coupling
Coupling can be combined with our brake systems
ROTEX® AFN-SB special
0 - 35,000 Nm / jaw coupling with brake disk
Jaw coupling with brake disk - radially mountable/dismountable
The torsionally flexible jaw coupling ROTEX AFN-SB special is an elastomer coupling with brake disk (brake disk coupling).
Brake disk and spider of the elastomer coupling can be replaced when mounted without displacing driving and driven side.
Features
torsionally flexible coupling with brake disk (brake disk coupling / drop-out center design coupling)
damping vibrations
axial plug-in
compensating for displacements (axial, radial, angular)
maintenance-free
ROTEX® SD
0 - 12,500 Nm / shiftable jaw coupling
Coupling shiftable at standstill
The torsionally flexible jaw coupling ROTEX SD is an elastomer coupling shiftable at standstill (shiftable coupling).
The shiftable ROTEX coupling type SD enables easy disconnection and connection of the driving and driven side with standstill of the plant.
Please note with shiftable coupling ROTEX SD:
Shiftable linkage also available with locking pins, lock device and retrieval of shifting position via sensors.
Features
jaw coupling shiftable at standstill / shiftable coupling
easy disconnection resp. connection of driving and driven machines with standstill of the plant
existing shiftable hub can be combined with slip ring and shiftable linkage
pilot bored shifting hubs must be set to the necessary shifting force after final machining
complete shifting device consists of split slip ring made of red brass, shifting fork, shifting shaft, shifting lever, eye-type bearing
Why an elastic coupling of Bestseal?
An elastic coupling from Bestseal is the result of decades of product development and innovation. With this, we assure you of a high-quality component with the highest possible reliability. We see ourselves as the reliable partner of anyone who wants to set things in motion.
More than 2,000 employees work passionately every day to provide you, the customer, with the best conceivable products. DIN ISO certifications are the best proof of this. A transparent and honest way of working lies at the basis of every customer relationship with us.
Would you like to learn more about our elastic couplings or answer an important product question?
Please contact our technical support department or sales department and let us inform you in detail about the various possibilities.
We will be happy to think along with you based on your wishes and make you a custom offer without any obligation.
we specialized in the development and production of sealing systems which were used in the Metallurgical,Electrical,Auto, Engineering machinery, Light industrial machinery and Electrical appliance manufacturing industries. BESEALS focus on customers' needs,as a dependable partner and reliable supplier to help you resolve supply or technical problems ,and improve the performance of your equipments or your business. When you are facing emergency repairs situation or urgent orders,the highly responsive team of DLseals will offer you very short lead time. Beseals has a global sales network,and our seals have been sold to more than 100 countries or areas ,Such as America, England, Canada, Australia, Russian Federation ect .
1. who are we? Are you trading company or manufacturer ?
We are manufacturer.We are based in Hangzhou, China, start from 2010,sell to Domestic Market(33.00%),North America(15.00%),South America(10.00%),Western Europe(8.00%),Eastern Europe(6.00%),Souther Europe(6.00%),Southeast Asia(5.00%),Mid East(5.00%),Northern Europe(5.00%),Oceania(2.00%),South Asia(2.00%),Africa(00.00%),Eastern Asia(00.00%),Central America(00.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;
3.what can you buy from us?
PTFE Seals/Oil Seals/O Rings/Rubber Seals/Plastic Seals/Mechanical Seal/O-RING/ RING Seals.
4. why should you buy from us not from other suppliers?
Beseals is a professional manufacturer of seals .Our company specializes in the production of PU, PTFE, rubber and metal sealing components
5. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
6.Do you provide samples ?
is it free or extra ? Yes, we could offer the sample for free charge but you need to pay the cost of freight.
7. what services can we provide?
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