www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT-LOCK 14 Shrink Disc ® SIT-LOCK 14 not assembled ® SIT-LOCK 14 assembled When the two components’ surfaces are aligned, installationis complete and the values indicated the table will have been achieved. Since the clamping screws are not typically tightened using a torque wrench, the values indicated in the table are often not reached. In these cases, slippage could occur resulting in economic damages. ® The SIT-LOCK 14 internal locking device should be considered the most effective development in the field of friction shaft-hub couplings as it can be assembled without using a torque wrench and, thanks to the alignment, still guarantees simple, functional installation. Installation® The SIT-LOCK 14 locking device is supplied ready to assemble. Clean the d shaft contact surfaces thoroughly. The contact surface of diameter d must be w w dry, without any traces of oil. The transmissible torque M is calculated with a coefficient of friction µ equal to 0.15. Mount the locking device on the hub d and t insert the shaft into the bore d .w Caution: Do not tighten the screws before placing the locking device on the hub. Clean the diameter d contact surface and apply a light film of oil to facilitate the locking device’s positioning. Installation without torque wrench Tighten 2 or 4 diametrically opposed screws until the diameter d contact surfaces are locked. Gradually tighten the screws clockwise until the lateral surfaces w of the inner and outer ring are completely aligned. Installation is complete once alignment has been achieved. Installation with torque wrench Tighten 2 or 4 diametrically opposed screws until the diameter d contact surfaces are locked. This does not require a torque wrench. Tighten the screws w clockwise, in continuous sequence, to 50% of the M tightening torque indicated in the table. Tighten the screws clockwise, in continuous sequence, to 100% s of the M tightening torque indicated in the table. Continue tightening the screws clockwise, in continuous sequence, to 100% of the M tightening torque s s indicated in the table until alignment is achieved. Removal Loosen the screws in a continuous sequence until the locking device is fully removed. If the locking device does not disassemble after all screws have been loosened, insert the clamping screws into the removal threads on the inner ring. Tighten the screws in a ‘criss-cross’ sequence until the locking device is released. Reusing the locking device When installing or removing the locking device, check all surfaces for signs of seizing or deformation. Reapply grease to the tapered surfaces of the inner ring and outer ring, the threads and the clamping screw underheads. Use grease with a coefficient of friction µ of 0.04. For further information, please contact the jbj Techniques Limited technical office, telephone +44 (0)1737 767493 or email: info@jbj.co.uk High speed applications ® ® For applications that require greater balance, SIT-LOCK 14 is recommended rather than SIT-LOCK 11, as incorrect parallelism may create issues at high rotation speeds. 62
RkJQdWJsaXNoZXIy NzQyNjQ=