www.jbj.co.uk/couplings.html #DriveLineHarmony Features - internal ® SIT-LOCK Keyless Locking Elements 9 ® SIT-LOCK 3 » Self-centering. » Low surface pressures. » Suitable for using on hubs with a low σ . 0.2 » Available for shaft diameters of 6 to 130 mm. » No axial displacement when tightening the screws. » Compact dimensions. » Medium to high transmissible torques. ® ® SIT-LOCK 4, SIT-LOCK 4A » Self-centring. » Even pressure distribution. » Very high transmissible torques. » Available for shaft diameters of 25 to 400 mm. » No axial displacement when tightening the screws. » Removal via extraction threads. » Excellent perpendicularity. ® SIT-LOCK 5A » Self-centring. » Even pressure distribution. » Available for shaft diameters of 18 to 200 mm. » Axial displacement when tightening screws. » Excellent shaft-to-hub perpendicularity. » High transmissible torques. » Quick installation and removal. ® SIT-LOCK 5B » Self-centring. » Low surface pressures. » Quick installation and removal. » Available for shaft diameters of 18 to 200 mm. » No axial displacement when tightening the screws. » Excellent shaft-to-hub perpendicularity. » Medium to high transmissible torques.
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