-PRODUCT CATALOGUE-

Drive Technology The company JAKOB JAKOB Antriebstechnik GmbH is an internationally leading manufacturer of servo couplings, safety couplings, and mechanical clamping elements. For more than 50 years JAKOB has been developing and producing various types of torsionally stiff metal bellows couplings and safety couplings for the servo drive industry. Throughout our history we have earned ourselves a reputation of being a reliable and competent partner in the motion and drive industry. JAKOB is the market leader in the area of mechanical tool and component clamping with its innovative and unique...

• simple installation with clamping ring hub •for high axial and lateral load • excellent run-out accuracy • ball-bearing-mounted SKW • easy keyway connection • ball-bearing-mounted ' • low-cost version SKR-K/ • SKR-K series with cone clamping bush SKR-N • Reihe SKR-N mit PaBfedernut - Verbindung SKVA-N • SKVA-N series with keyway connection SKVA-K • SKVA-N series with clamping ring hub • with bellows attachment • simple installation • with lateral clamping hub on both sides SKB-EK • with elastomer attachment • plug in • simple installation • with lateral clamping hub on both sides SKVA-KG •...

Drive Technology Safety Couplings I General Definition – Safety Couplings: Due to the constantly increasing automation and dynamics of modern work processes, the devices which protect the complex and expensive units against damages in case of errors are becoming more important. JAKOB safety couplings reduce expensive machine damages, repairs and downtime by acting as torque limiters and overload protection absolutely reliably. JAKOB safety couplings are the life insurance for your machines, no matter whether the error occurs due to incorrect operation, programming error, material overload or...

Drive Technology Couplings I Dimensioning Technical Information - Definitions / Details: Nominal torque of the coupling: TN - [Nm] The nominal torque of the coupling defines the max. load of the prolonged alternating-stress strength. If in normal operation, TN is not exceeded, an infinite number of operation cycles can be carried out (see d „durability“). The values for the moment of inertia are defined for medium hub-bores in the given diameter range Dmin/Dmax. Conversion: [kgcm2] = [10-4kgm2] Torsional stiffness: CTK - [Nm/arc min] The values for the specific torsional stiffness of all couplings...

Drive Technology Couplings I Dimensioning c) according to shaft diameter: After selecting the coupling type, it must be checked whether the requested shaft diameter corresponds with the allowed diameter (Dmin / Dmax) of the hub bores. Another coupling type or size must be chosen, if the shaft diameter is overdimensioned in relation to the torque, which means it is larger than Dmax of the hub. note: hub bores which are smaller than “Dmin” are possible, but an optimal transfer of the nominal torque cannot be guaranteed in this case, so a reduction of the drive torque is necessary. d) durability:...

Drive Technology Couplings I Installation Instructions Alignment of shafts: Axial and angle misalignment are usually without problems and also simple to measure. To obtain the lateral misalignment, it is recommended to proceed as follows: Fit a dial gauge with an appropriate holding device on one shaft end or on one hub of the coupling and bring the feeler onto the second shaft end or onto the second coupling half (sketch). Now the shafts are turned with the dial gauge and the deflection is read. One half of the total deflection is the lateral misalignment. The admissible value for the shaft...

Drive Technology Safety Couplings I Modular System The safety coupling modular system, consisting of three standard assemblies and several special variants, enables a solution for almost every application. Depending on the application, various add-on elements can be attached to the release mechanism to be attached. For indirect drives, belt pulleys, gear wheels or corresponding connecting parts are flanged on. In the case of direct drives, the release mechanism is supplemented with metal bellows or an elastomer coupling part to compensate for any shaft misalignments. The main selection and design...

• Drive Technology _* flange ring switching disc disengaged position \ steel ball / ball bearing disc spring swtoNng. path „s“ The axial stroke of the switching disk is immediately stopped by means of a non-contact or mechanical limit switch (emergency stop) of the drive. JAKOB safety couplings are designed as predetermined separation points, collision protection or overload limitation in a direct or indirect drive train. The heart of the safety clutch is a high-precision, robust release mechanism with steel balls as a spring-loaded form-fit body. The torque is introduced into the centrally located...

• Drive Technology Couplings I Technical Information The degressive spring characteristic The function of the JAKOB safety couplings is significantly influenced by the disk springs specially developed for this application. Due to the design in the degressive characteristic curve area, the spring force decreases with increasing spring deflection (switching travel), which means that the torque drops immediately when it responds. With usual Spring-loaded overload clutches, on the other hand, increase the spring force and the release torque, e.g. T. significantly. This results in an undefined functional...

Drive Technology Couplings I Technical Information The disengagement torque is generally steplessly adjustable between about 40% and 100% of the nominal clutch torque. If no setting is specified by the customer, the maximum torque (nominal torque) is set. The set, static disengagement torque can easily be readjusted by turning the adjusting nut or the adjusting ring on the machine using a hook wrench. For this purpose, the setting rings of all series are provided with a user-friendly label and the set release torque as well as a marking for the minimum and maximum release torque (Tmin, Tmax)...