SFF Model
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Metal Disc Couplings SFF(SS) Types Single Element/Clamping Specifications Model Torsional stiffness [N•m/rad] * Max. rotation speed does not take into account dynamic balance. * Torsional stiffness values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore diameter.

Standard Bore Diameter Model Standard bore diameter　d1・d2 ［mm］ Nominal diameter & REDUCERS INVERTERS LINEAR SHAFT DRIVES TORQUE LIMITERS SPEED CHANGERS CLUTCHES & BRAKES Metal Slit SERIES Metal Disc Couplings SERVOFLEX High-rigidity Couplings Metal Couplings * The bore diameters marked with ● are supported as standard bore diameter. HELI-CAL Metal Coil Spring Couplings BAUMANNFLEX Pin Bushing Couplings SFF-080SS-25BK-30BK-200N Size Type S: Single element Link Couplings Nominal rated torque (Refer to the specifications) Dual Rubber Countershaft tolerance Blank: h7, K: k6, M: m6, J:

Metal Disc Couplings SFF(SS) Types Single Element/Wedge Coupling Specifications Misalignment Parallel [mm] Torsional stiffness [N•m/rad] * Max. rotation speed does not take into account dynamic balance. * Torsional stiffness values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore diameter. D L N1・Ｎ 2 LF S C K H Ｍ 1 Qty M1 Tightening Ｍ 2 Qty ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ Nominal dia. torque ［N・m］ Nominal dia.

Standard Bore Diameter ELECTROMAGNETIC CLUTCHES & BRAKES SPEED CHANGERS & REDUCERS INVERTERS LINEAR SHAFT DRIVES TORQUE LIMITERS Metal Disc Couplings Couplings Nominal rated torque (Refer to the specifications) Countershaft tolerance Blank: h7, K: k6, M: m6, J: j6, S: 35 +0.010 0 Affixing method K: Wedge SERVORIGID Metal Couplings Type S: Single element Metal Slit Couplings HELI-CAL Metal Coil Spring Couplings BAUMANNFLEX Pin Bushing Couplings

Metal Disc Couplings SFF(DS) Types Double Element/Clamping Specifications Model Torsional stiffness [N•m/rad] * Max. rotation speed does not take into account dynamic balance. * Torsional stiffness values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore diameter. D L N1 Ｎ2 LF ・ LP S d3 K Ｍ 1・M2 Qty - M1・M2 Tightening ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］Nominal dia. torque ［N・m］

Standard Bore Diameter Model Standard bore diameter　d1・d2 ［mm］ Nominal diameter & REDUCERS INVERTERS LINEAR SHAFT DRIVES TORQUE LIMITERS SPEED CHANGERS CLUTCHES & BRAKES Metal Slit SERIES Metal Disc Couplings SERVOFLEX High-rigidity Couplings Metal Couplings * The bore diameters marked with ● are supported as standard bore diameter. HELI-CAL Metal Coil Spring Couplings BAUMANNFLEX Pin Bushing Couplings SFF-080DS-25BK-30BK-200N Size Type D: Double element Link Couplings Dual Rubber Couplings STEPFLEX Rubber and Plastic Couplings Countershaft tolerance +0.010 Blank: h7, K: k6, M: m6, J: j6

Metal Disc Couplings SFF(DS) Types Double Element/Wedge Coupling Specifications Misalignment Parallel [mm] Torsional stiffness [N•m/rad] * Max. rotation speed does not take into account dynamic balance. * Torsional stiffness values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore diameter. D L N1・Ｎ 2 LF LP S C d3 K H Ｍ 1 Qty - M1 Tightening Ｍ 2 Qty ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ Nominal dia. torque ［N・m］ Nominal dia.

Standard Bore Diameter ELECTROMAGNETIC CLUTCHES & BRAKES SPEED CHANGERS & REDUCERS INVERTERS LINEAR SHAFT DRIVES TORQUE LIMITERS Metal Disc Couplings Nominal rated torque (Refer to the specifications) Countershaft tolerance +0.010 Blank: h7, K: k6, M: m6, J: j6, S: 35 0 Affixing method K: Wedge SERVORIGID Metal Couplings Type D: Double element Metal Slit Couplings HELI-CAL Metal Coil Spring Couplings BAUMANNFLEX Pin Bushing Couplings

Metal Disc Couplings Options　 Tapered shaft supported One of the hubs is a taper flange, supporting servo motor tapered shafts. Specifications/Dimensions  Single Element/Clamping Rated torque ［N・m］ * The moment of inertia and mass are measured for the maximum bore diameter. * For other Specifications, see Specifications for Single Element Clamping. d1 d2 W T D L N1 Ｎ 2 LF1 LF2 S K H M Qty MTightening DA Ｗ A J Nominal J Tightening ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］ ［mm］Nominal dia. torque [N・m]［mm］ ［mm］ × pitch torque [N・m] Specifications/Dimensions  Double...

Options　 Flange-Mounted One of the hubs is flange-shaped, allowing mounting on a DD motor, speed reducer, etc. CLUTCHES & BRAKES SPEED CHANGERS Misalignment Parallel ［mm］ Torsional stiffness ［N・m/rad］ * Max. rotation speed does not take into account dynamic balance. * Torsional stiffness values given are measured values for the element alone. * The moment of inertia and mass are measured for when d1 is the maximum bore diameter. & REDUCERS INVERTERS LINEAR SHAFT DRIVES TORQUE LIMITERS ROSTA Metal Disc Couplings Metal Couplings * The figure in parentheses ( ) for the SFF-080DS is the value...

Metal Disc Couplings SFF Models Items Checked for Design Purposes ■ Special Items to Take Note of You should note the following to prevent any problems. Surface processed simultaneously with the inner diameter (1) Always be careful of parallel, angular, and axial misalignment. (2) Always tighten bolts with the specified torque. ■ Precautions for Handling Couplings are assembled at high accuracy using a special mounting jig to ensure accurate concentricity of left and right internal diameters. Take extra precautions when handling couplings, should strong shocks be given on couplings, it may...

071 ■ Mounting (Wedge Coupling) K (9) eep the width of the dimension between flange faces (S (1) heck that coupling pressure bolts have been loosened and C remove any rust, dust, oil residue, etc. from the inner diameter surfaces of the shaft and couplings. In particular, never allow oil or grease containing antifriction or other agent (molybdenum-, silicon-, or fluorine-based), which would dramatically affect the misalignment with respect to the reference value. Note that the tolerance values were calculated based on the assumption that both the level of parallel misalignment and angular...