www.jbj.co.uk/couplings.html #DriveLineHarmony ® SIT-LOCK 21 » Self-centring. » Available on request for shaft diameters of 100 to 600 mm. » No axial displacement when tightening the screws. » High transmissible torques. » Easy to remove. » ® Interchangeable with SIT-LOCK 4 - 4A in terms of both dimensions and features. ® SIT-LOCK 22 » Self-centring. » Available on request for shaft diameters of 50 to 600 mm. » No axial displacement when tightening the screws. » High transmissible torques. » Easy to remove. » Recommended for applications subject to high bending moments. ® SIT-LOCK 15 special » Excellent concentricity and perpendicularity. » Available on request for shaft diameters of 5 to 50 mm. » No axial displacement during assembly. » Low surface pressures. » Reduced axial dimensions. » Medium to high transmissible torques. » Easy to remove. ® SIT-LOCK 4 COMPACT » For applications with high bending moments. » Quick installation and removal. » Available on request for shaft diameters of 70 to 600 mm. » No axial displacement when tightening the screws. » Excellent concentricity and perpendicularity. » Medium to high transmissible torques. ® SIT-LOCK with electroless nickel plating » ® All SIT-LOCK locking devices are available with electroless nickel plating. » M, F , P and Pn values remain unchanged. t ax w » Excellent oxidation protection. » The screws are also supplied with electroless nickel plating. » Particularly recommended for applications in high humidity environments. ® SIT-LOCK stainless steel » ® Almost all SIT-LOCK locking devices can be manufactured and supplied in stainless steel, including stainless steel screws. » The values Mt, Fax, Pw and Pn differ from the values in the table. » Excellent, effective oxidation protection. » Highly recommended for applications in the food industry or aggressive environments. ® SIT-LOCK Customised Versions Available on Request 51
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