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Miki Pulley Europe AG
SFH Model datasheets

SFH Model datasheets

Product catalog summary

Specifications:
The SERVOFLEX SFH S series features metal disc couplings suitable for various industrial applications. Models range from SFH-150S to SFH-260S, with torque capacities between 1000 N·m and 8000 N·m. They accommodate angular misalignment of 1° and axial misalignment from ±0.4 mm to ±0.7 mm. Rotational speeds range from 3400 min-1 to 5900 min-1. Each model has specified torsional and axial stiffness, moment of inertia, and mass for the maximum bore diameter.

Dimensions:
Detailed dimensions are provided for each model, including pilot bore sizes, maximum and minimum bore diameters, length (L), flange length (LF), and keyway dimensions. Set screw positioning is specified for each model.

Ordering Information:
Orders require specifying the model, size, type (single or double element), bore diameter, and material. Bore specifications can follow old JIS standards (class 2) E9, new JIS standards H9, or motor standards. Material options include S45C steel or equivalent.

Standard Hole-Drillings:
Standard bore dimensions and keyway specifications are outlined, including tolerances for different standards (JIS B 1301 1959, JIS B 1301 1996, JIS C 4210 2001). Set screws are included, and keyway milling precision is visually determined.

Additional Notes:
Dynamic balancing is recommended for higher rotational speeds. Moment of inertia and mass are specified for the maximum bore diameter. For bore processing beyond standard dimensions, contact Miki Pulley.

Procedures:
Ordering instructions include specifying the model and LS dimension. Consultation with Miki Pulley is advised for vertical use if the LS dimension exceeds the standard.

Standards and Recommendations:
Standard bore diameters and torque values are outlined. Higher rpm is possible with balancing. Moment of inertia and mass are specified for the maximum bore diameter.

Key Data from Tables:
Tables provide dimensions for each model, including standard bore diameters, LS dimensions, and torque values. Bore diameters marked with numbers indicate restricted torque due to shaft connection component holding power.

Critical Information:
Standard bore diameters and corresponding torque values are specified for each model. Consultation is recommended for vertical use when LS dimensions exceed the standard.

Catalog excerpts

METAL DISC COUPLINGS SERVOFLEX SFH S – Datasheet SINGLE ELEMENT / Key/Set Screw Type ■ Specifications Torsional stiffness [N·m/rad] • Max. rotation speed does not take into account dynamic balance. • The moment of inertia and mass are specified for the maximum bore diameter. Material: S45C steel or an equivalent Bore diameter: d1 (Small diameter) ‒ d2 (Large diameter) Blank: Pilot bore Type: S Single element Bore specifications 　Blank: Compliant with the old JIS standards (class 2) E9 H: Compliant with JIS standards H9 N: Compliant with motor standards

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Unit [mm] Models compliant with the old JIS standard (class 2) JIS B 1301 1959 Models compliant with the new JIS standard (H9) JIS B 1301 1996 Nominal bore diameter Nominal bore diameter Models compliant with the motor standard JIS C 4210 2001 Nominal bore diameter ■ Position of Set Screw Model ■ NOTE • Positioning precision for keyway milling is determined by sight. • Contact Miki Pulley when the keyway requires a positioning precision. • Set screws are included with the product. • ontact Miki Pulley regarding technical documentation for standard dimensions for bore processing other than C those...

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METAL DISC COUPLINGS SERVOFLEX SFH S-K-K – Datasheet SINGLE ELEMENT / Conical clamp hub ■ Specifications Model Torsional stiffness [N·m/rad] • Higher rpm possible with balancing. • The moment of inertia and mass are specified for the maximum bore diameter. Reamer bolt M Pressure bolt M1 Detachment screw hole M2 ■ Standard Bore Dimensions Model Standard bore diameter d1, d2 [mm] 38 • The bore diameters marked with ● or numbers indicate a standard bore diameter and the respective torque. • Bore diameters whose fields contain numbers are restricted in their rated torque by the holding power of the...

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METAL DISC COUPLINGS SERVOFLEX SFH G – Datasheet DOUBLE ELEMENT / Key/Set Screw Type ■ Specifications Torsional stiffness [N·m/rad] • Higher rpm possible with balancing. • The moment of inertia and mass are specified for the maximum bore diameter. Pilot bore • Further dimensions for LS possible on request. ■ aximum LS Dimension When M Used Vertically Model Spacer length Bore diameter: d1 (Small diameter) ‒ d2 (Large diameter) Blank: Pilot bore Type: G Double element Material: S45C steel or an equivalent Bore specifications Blank: Compliant with the old JIS standards (class 2) E9 H: Compliant...

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Models compliant with the old JIS standard (class 2) JIS B 1301 1959 Models compliant with the new JIS standard (H9) JIS B 1301 1996 Nominal bore diameter Set screw hole Nominal bore [M] diameter — Models compliant with the motor standard JIS C 4210 2001 Set screw hole Nominal bore [M] diameter — ■ Set Screw Position Model ■ NOTE • Positioning precision for keyway milling is determined by sight. • Contact Miki Pulley when the keyway requires a positioning precision. • Set screws are included with the product. • ontact Miki Pulley regarding technical documentation for standard dimensions for bo...

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METAL DISC COUPLINGS SERVOFLEX SFH G-K-K – Datasheet DOUBLE ELEMENT / Conical clamp hub ■ Specifications Model Torsional stiffness [N·m/rad] • Higher rpm possible with balancing. • The moment of inertia and mass are specified for the maximum bore diameter. Detachment screw hole M2 Reamer bolt M Unit [mm] • Further dimensions for LS possible on request. ■ Standard Bore Dimensions Standard bore diameter d1, d2 [mm] • The bore diameters marked with ● or numbers indicate a standard bore diameter and the respective torque. • ore diameters whose fields contain numbers are restricted in their rated...

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