flender couplings south africa H3-DH-15-A Helical gear reducers H3

Flender/Flender Gear Units/Helical gear reducers H3

e types.Type Description ZNN Standard type ZNZS with adapter ZNW with intermediate shaft ZNBG with straight brake disk ZNNA With axial backlash limiter ZNZA With adapter and axial backlash limiter ZNNV Vertical type ZNN For axial displacement Further application-specific coupling types are available; dimension sheets for and information on these are available on request. Function The torque is transmitted through the coupling teeth. The teeth are crowned, so angular displacement per tooth plane is possible. Radial displacement can be compen-sated for via the space VA between the tooth planes. The internal teeth of the flanged sleeves are significantly wider than the external teeth of the hub parts, permitting relatively high axial misalignment. small angular misalignment on the coupling teeth results in an advantageous distribution of the lubricant film in contact with the teeth and very low wear rate. This favorable condition can be deliberately set by aligning the drive with the machine shafts with slight radial misalign-ment. 5/4 TORSIONALLY RIGID GEAR COUPLINGS | ZAPEX ZN SERIES 4 4 5 5 6 6 7 7 8 8 9 9 1 1 1 1 1 1 1 1 Power ratings Size Rated torque Maximum torque Overload torque Fatigue torque Torsional stiffness ZNPermitted axial shaft misalignment TKN TKmax TKOL TKW CTdyn Ka Nm Nm Nm Nm kNm/rad mm 8 1 2 4 4 5 1 1 2 4 8 8 1 1 1 4 8 1 1 2 1 1 6 1 2 2 5 1 1 1 2 4 4 9 1 2 1 3 7 7 1 1 2 3 6 1 1 2 1 2 4 8 1 1 4 1.5 3 6 1 2 2 6 1.5 3 8 1 3 3 7 1.5 3 1 2 4 4 9 1.5 4 1 3 6 6 1 1.5 The specified torsional stiffness "ZN" applies to coupling types ZNN, ZNNA, ZNNV and ZNN for axial displacement.Torsional stiffness of types ZNZS, ZNW, ZNBG and ZNZA on request. The axial misalignment must be understood as the maximum permitted enlargement of the hub distance of the coupling.The axial misalignment does not apply to the types ZNNA, ZNNV, ZNBG and ZNZA. Angular misalignment Kw Types ZNN, ZNZS, ZNW, ZNNV, ZNN for axial displacement: Kw = 0.5 Types