www.jbj.co.uk/couplings.html #DriveLineHarmony Features - internal ® SIT-LOCK Keyless Locking Elements 11 ® SIT-LOCK 9, SIT-LOCK® 13 » ® Self-centring (SIT-LOCK 13). » ® Not self-centring (SIT-LOCK 9). » ® Easy installation/removal (SIT-LOCK 9). » Available for shaft diameters of 14 a 70 mm. » Axial displacement when tightening the locking nut. » ® Good perpendicularity (SIT-LOCK 13). » Medium to high transmissible torques. ® SIT-LOCK 15 » Self-centring. » Quick installation and removal. » Available for shaft diameters of 5 a 50 mm. » Slight axial displacement when tightening screws. » Excellent shaft-hub concentricity and perpendicularity. » Medium to high transmissible torques. » During assembly, it generates an axial force that can be used to axially clamp bearings or other components adjacent to the hub. ® SIT-LOCK 1 » Not self-centring. » Easy removal. » Available for shaft diameters of 17 a 600 mm. » Long assembly times due to high number of clamping screws. » Possible use on shaft-hubs with large tolerances (h11/H11). » Easy worldwide availability. ® SIT-LOCK 2 » Not self-centring. » Requires threads in the hub. » Requires a thrust flange. » Quick installation and removal. » Available for shaft diameters of 6 a 240 mm. » No axial displacement during assembly. » Medium to low transmissible torques.
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