We invented the revolutionary wedgegard shearpin torque limiter in 1977 to address demand for a simple solution to torque overload protection. Connection and disconnection of system parts during operation. Units can also be supplied with special sealing, and plating for harsh environments. In order to protect such drives and machines reliably against overload, mayr power transmission has developed a disengaging. Suitable for transmitting high torque with high reliability and small size. Model tb torque limiter coupling with clamping hubs 8 sizes with rated torque from 5500 nm design description.
In order to overcome the problems associated with conventional round shearpins, howdon developed a wedge shaped shearpin introducing a completely new concept for torque limiters. Disc coupling, industrial couplings, torque limiter. Torque limiter 400 series for more than 80 years, autogard products have led the industry in overload protection with highquality products, design innovation and production. A shaft coupling design providing angular, axial, and parallel misalignment compensation, with a single screw split hub shaft connection design. It is an assembly consisting of a standard torque limiter and a roller chain coupling. The combination with the approved ktr couplings and the integration of customerspecific drive components e. Nexen mechanical torque limiters are factory set to the lowest disengagement torque, which is marked on the coupling. Torquelimiting couplings safeset, smartset and autoset. Highly elastic, considerable capability of change of position axial, radial and angular changes. Torque limiter supplied standard without bush, which is supplied with platewheel. The torque limiter coupling combines overload protection with ability to. After incoming inspection the coupling should be stored in its.
Find your torque limiter with coupling easily amongst the 43 products from the leading brands bonfiglioli, voith turbo, mayr. An electronic database in which the measurement values are archived together with the associated serial numbers of the safety brake, torque limiter or shaft coupling guarantees 100 % traceability. Design protection for expensive components within the drive system or. Installation of the torque limiters should be perfor med.
Mechanical clutches and torque overload devices catalog mechanical clutches and torque overload devices catalog application considerations the proper selection and application of power transmission products and components, including the related area of product safety, is the responsibility of the customer. Brunel safety element torque limiters have been protecting industrial power transmission systems around the world since 1971. Range of products include bellow coupling, miniature bellow coupling, elastomer couplings, safety couplings, industrial drive couplings, disc pack coupling and line shaft coupling products, torque limiter st series and torque. With lf torsional coupling torque limiter for protection against overload between two shafts. Couplings are keyy components for mechanical motion projects. Disc coupling, industrial couplings, torque limiter bibby. For direct drives, the torque limiter couplings are equipped with an attachment in the form of the triedandtested ask sliced coupling or with metal bellows. Torque limiter and couplings a torque limiter is an automatic device that protects mechanical equipment, or its work, from damage by mechanical overload. Failure to comply with these procedures may result in poor performance and or failure of the torque limiter. Dalton model rosdc rigid overload safety device coupling on.
Smartset is a torque limiting coupling with controlled slip based on the same technology as safeset, with the additional ability to also slip without. Autogard torque limiters bearings, couplings, gear. It is an assembly consisting of a standard toque limiter and a roller chain coupling. A newer technology on the market is mechanical torque limiters.
Torque limiting is applied at the drive, which allows you to optimize your equipment design, and enhance your machine safety factor. Torque limiter with coupling all industrial manufacturers. They are made up from a torque limiter fitted with a plate sprocket and a mating hub sprocket, hollowed out to clear the head of the torque limiter. The protection provided could mean avoiding personal injury or secondary disasters.
The sankyo torque limiter is a safety device designed to protect mechanical equipment from overloads. Smartset is a torque limiting coupling with controlled slip based on the same technology as safeset, with the additional ability to also slip without releasing, to reduce short duration and dynamic torque peaks without interupting production. The modular system provides facilities for virtually unlimited torque capacity and lends itself to many transmission applications chain, belt and gear drives, or shafttoshaft gear or flexible coupling drives. Installation of the couplings should be performed by a qualified technician. Overload protection index clutches caldic techniek belgium. In a shearpin torque limiter, the shear pin breaks at a certain level of torque. The couplings are all torsionally rigid with absolute zero backlash.
The st torque limiter is based on a spring loaded, balldetent design. When an excessive torque load occurs, the torque limiter trips or, shuts off the transmission of torque to protect the machine. Skf cou plings cover a wide range of coupling types, sizes and capacity ratings for many applica tions and factory environments. The type jf model allows you to face mount a plate style sprocket or pulley to the torque limiter using bolts. Comintec torque limiters are mechanical components necessary to fit along the kinematic chain and are preferred to electronic safety devices because of a better response time, improved reliability, excellent configuration flexibility, easy fitting and adjustment, use at high. For large, heavy duty applications, skf has large size couplings. Determine if the torque limiter is to be mounted on input 4. This cuts back significantly on potential wear between the two halves of the torque limiter as they ratchet against each other. Confirm selected torque limiter will accept drive shaft diameter.
Voith torque limiting couplings driveline intelligence voith. Overload clutches torque limiters for guaranteed actuator protection. Curts idea for cre ating a more reliable coupling was based on a permanent con nec tion with a safety function later called safeset. If bush required, specify on order which length size required. Safety couplings for indirect drives are used as torque limiters and as overload protection. Nuteck nuteck torque limiters nuteck torque limiter is a protective device that limits torque transmitted in a drive system by slipping when torque demand exceeds a preset value as a result of shock loads, over loads, or machine jams. All steel rigid coupling half is bolted to a basic osd unit to form a rigid coupling with the overload feature. Maintenance free when operated within the technical specifications. A torque limiter may limit the torque by slipping as in a friction plate slipclutch, or uncouple the load entirely as in a shear pin. End of shaft mount type jf the end of shaft mounttype jf torque limiter is used where you have limited or reduced shaft length available. This device consists of a stock torque limiter and a roller chain type coupling. For selection assistance, call application engineering at 18006262093 or visit.
Precise torque setting by adjusting the radially balanced locking nut. Transmit torques between two shafts and compensate for shaft misalignment. Howdon power transmission has been involved in the design and manufacture of torque limiters for over 40 years. The rexnord autogard 100 series torque limiter is a general purpose torque overload device that provides low cost, reliable protection for industrial equiptment. A torque limiter is a device that protects mechanical equipment, such as conveyors and. Free wheeling safety clutches will permanently separate the drive and driven shaft hubs of the coupling, requiring a manual reengagement. Torque limiter couplings torque limiter combined with roller chain flexible coupling torque capacity nm minimum plain bore maximum bore limiter mm sprocket size weights are for torque limiter and coupling unbored. Safeset, smartset and autoset ensure safe operation of the driveline, by releasing or slipping at a very precise torque level. Provided to protect the diesel engine, clutch, ujoint and the rotary cutter head. Nutecktorque limiter couplings nuteck offers a torque limiter coupling in 14 sizes. They work like a mechanical fuse in the driveline by protecting the system from costly breakdowns. All autogard 400 series units may be supplied from the factory at a preset torque and with the required drive medium assembled to the unit. Nexen mechanical torque limiter steven engineering. Cyclo gearmotor with torque limiter sumitomo drive.
A roller safety coupling that allows a complete disengagement when the calibrated torque is reached. St torque limiters are designed for high torque applications. The 400 series has been designed to meet the need for a. If you wish to download the pdf click the icon on the top left of the brochure window. A stock ground plate sprocket serves as the center. The fresh and waste water safety element torque limiters are designed specifically for the outdoor environment. Enemac torque limiters are the result of decades of experience as proven by many thousands of implementations. Torque adjustment possible even in assembled condition. Autogard products are manufactured to meet iso 9001 using the latest machine tools and highquality materials.
The wt series was designed to accommodate water treatment applications and features a stainless steel module for superior protection in the harsh working environment. Disconnecting types include shear pin, synchronous magnetic, and ball detent. Premium quality torque limiter couplings manufacturer. Cyclo gearmotor with installed torque limiter to detect overloads protects your valuable machines from catastrophic failure. A tried and tested design principle, specially selected, highvalue materials, exacting production techniques, and an almost unlimited range of optional product variants, are all combined to make these mature products stand head and shoulders above their competitors in the. Torque limiters often also called saftey couplings are used in various applications where protection of the complete system is required. It automatically reengages when the over load torque has passed, no resetting is required. Torque limiter 400 series bearings, couplings, gear. The sankyo torque limiter is a safety device designed to. Products include friction, balldetent, rollerdetent and pneumatic. Pulleys, gears and flanges can be mounted on the coupling to customize it for the application. How to select the correct overload and torque limiter.
The units can be mounted shafttoshaft, by rigid or flexible couplings, or can be installed with pulleys or chain wheel. These couplings, which provide optimum contact with the shaft, can accommodate high torque values. Specialist technicians can use this data to position the torque limiting coupling in the optimal location. Torque is steplessly controllable and adjustable during operation. Reliably prevent uncontrolled movements, even after an emergency stop or power failure.
The device is automatically reengaged when the overload is eliminated. This device consists of a shock torque limiter and a roller chain type coupling. Units finish machined to suit customer applications. The innovative regulation of the nominal torque by measuring the h dimension allows for immediate coupling calibration. In order to develop the invention into a commercial product, curt rented a workshop to bring safeset to completion.
Torque limiter couplings ktr supply versatile couplings for all types of machinery and mechanical handling equipment to meet your exact requirements. This gives the driveline maximum protection and enables a higher production level. The action of a torque limiter is especially useful to limit any damage due to crash stops and jams. Failure to comply with these procedures may result in poor performance and or the failure of the coupling. Click here to viewdownload a pdf of our torque limiter catalog. Torque limiter couplings these couplings combine the flexibility of a chain coupling with the overload protection features of the torque limiter. Torque limiting coupling with instant release coupling and function product overview voith torque limiting couplings are used in many applications in industries worldwide. Device with high sensitivity of intervention, instant and precise. Torque limi ters osdc overload safety device couplings pages 67 patent no. On request, we confirm the product characteristics with a test protocol. For procedure to select torque limiters refer to page 6. The modular safety coupling system offers different solutions for specific requirements. Operating instructions arat centrifugal and torque limiting couplings, mk swing base 11 3 installation of drive with ar torque limiting coupling installation 3 installation 3. Pdf catalogs for comintec torque limiters safety couplings pdf catalogs of comintecs extensive torque limiter safety clutch lines.
Jun 09, 2016 engineers will integrate a torque limiter to be set at a certain value of torque, so that if it reaches beyond that torque setting the torque limiter will slip to save higher value equipment, or highcost shafting, or whatever the case may be. Good reasons to fit a morse torque limiter on your equipment. The unit funcitons as a rigid coupling until an overload occurs, causing the rosdc to disengage. Torque limiting couplings from voith prevent machine damage in high value rotating equipment. We offer the original series torque limiters and spares based on imperial dimensions and a new range of metric torque limiters providing both smaller and larger units. World leader in modular torque limiters world leader in. The tabs on the outside of the friction discs in the mechanism slide into the slots in the coupling sleeve assembly, creating a connection for the transfer of rotary motion from one shaft to the other. Torque limiting couplings can be classed as disconnecting zero torque transmitted or torque limiting coupling slips to reduce torque. Each half of the assembly, 1 torque limiter mechanism and 2 the coupling sleeve assembly, is attached to a fully supported shaft. Torque limiters torque limiter mechanisms with couplings. Bibbigard torque limiters are designed for high and low speed applications. Safety alert according to eg guidelines for machinery 200642eg, appendix iib as per machinery guidelines mr, shaft couplings are not considered machines, but rather components for installation in a machine. Coupling with two clamp collars with an elastomer spider coupling.
The torque limiter coupling combines overload slip protection with the ability to couple driving and driven shafts. Important factors for the selection of torque limiters. Couplings and torque limiter products industrial drive. Voith torque limiting couplings driveline intelligence. Howdon 1978 patent for a torque limiting coupling with shearpins s. A torque limiter is an automatic device that protects mechanical equipment, or its work, from damage by mechanical overload. Torque and speed paths of a load holding frictionallylocking torque limiter malfunctionfree operation operational malfunction overload overload removed input output load separating torque limiters example 2. Both series are available with a roller chain coupling. Are overloads pulling you down gear couplings, chain. Considerable, angular elasticity, because of 60 shore hardness of the coupling element, this results in strong shock and vibration dampening. If the shaft bore is a pilot bore, the code for the shock guard side will be tr and the code for the coupling side will be cr. Refer to pages 4 and 5, select size of torque limiter where rated torque slightly exceeds slip torque. Selecting the correct overload torque limiter clutch. Feel free to look at the selection guide provided to help narrow the search and then download the pdf catalog pages.
Models can be supplied as either manual or automatic reset. In case of adverse operating and ambient conditions due to dust, contamination, spray water, heat or cold, drive lines are frequently encapsulated and therefore hard to access, especially in the heavy machine industry. Torque and speed paths of a load separating ratchetting torque limiter. Pmt pilot mount tapered clamping hubs lock the torque limiter to the shaft with a. Zeromaxs htlc torque limiters offer adjustable torque setting to add a high level of safety to machine operations. Our torque limiters limit torques or forces to the set value, thereby preventing expensive overload damages to machines and systems. The torque limiter coupling combines overload slip protection with the ability to. These can be used to limit torque as well as linear chain or belt pull. Many systems are built with a series of shear pins to protect the drive line.
Torque limiting couplings protect mechanical equipment. Ball safety coupling with high technology and backlash free transmission. Torque limiting overload protection hvh industrial solutions. The maximum release torque depends on the number and size of torque limiting modules that can be incorporated, and the size of the. Using capacity below, confirm selection of torque limiter. The transmittable torque is determined by the number of torque. Click here to request for quote or call us today at 18008661290. Bibby turboflex is recognized around the world for advanced industrial couplings and torque limiting technologies since 1917, with the introduction of the resilient grid coupling, bibby turboflex has been recognized as a global leader in the design and manufacture of highlyengineered industrial couplings. The torque limiter coupling combines overload slipprotection with the ability to couple driving and driven shafts. Torque limiter mechanical protectors power transmission. The old method of torque limitation with shear pins was not reliable enough.
To ensure your equipment reaches its maximum potential, a preset torque level is set once the coupling is in place. The nuteck torque limiter can be used with a sprocket, gear, sheave or flange plate as a center member that is clamped between two friction facings. Hf series disc coupling for fpso vessel pump based on previous successful collaborations, the pump oem contacted bibby turboflex for its extensive coupling. Dalton osd overload safety devices torque limiterscouplings. The rosdc can be set with a torque wrench for maximum load desired. The residual torquefree disconnecting torque limiting clutches with switching function. Installation of the torque limiters should be performed by a qualifi ed technician.