SERVOFLEX. High-stiffness and Low-inertia Servomotor Couplings. Metal Disc Couplings COUPLINGS
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- Reynard Anthony
- 6 years ago
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1 Metal Disc ERVOFEX Metal Disc ERVOFEX Ultra-high ow inertia High response No backlash RoH Applications Machine tool, semiconductor manufacturing equipment, actuator, chip mounter, printing press, packing machine High- and ow-inertia ervomotor Metal disc couplings developed for high-speed and high-precision positioning and ultra-precise control of servomotors, etc. While achieving high, high torque, low inertia, and high response speed, these couplings are also flexible in the torsional direction, in the uneven directions, and in the shaft direction, and are totally free from backlash. s with various characteristics are available, and each model has a single element type that emphasizes and a double element type that emphasizes flexibility. 030
2 031 Available s ETP BUHING EECTROMAGNETIC CUTCHE & BRAKE eries Applications ineup PEED CHANGER & REDUCER INVERTER ERVOFEX Compact (medium and small capacity) FC P.036 INEAR HAFT DRIVE TORQUE IMITER Feed shaft FF(-N)/ FF P.046 P.064 ROTA tandard F P.052 ERIE Metal Disc ERVOFEX Main shaft FM P.070 High-rigidity ERVORIGID High torque FH P.076 Metal Metal lit HEI-CA Metal Coil pring BAUMANNFEX Pin Bushing PARAFEX election ink CHMIDT Dual Rubber TEPFEX type Rated torque [N m] High ow inertia Mountability Mounting accuracy High-speed rotation Material Operating temperature [ C] Rubber and Plastic Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX FC 0.25 ~ 250 Aluminum alloy -30 ~ 100 Rubber and Plastic CENTAFEX MODE FF-N 8 ~ 300 teel -30 ~ 120 FF 70 ~ 800 teel -30 ~ 120 FC FF(-N) F FF FM F 20 ~ 800 teel -30 ~ 120 FH FM 200 ~ 800 teel -30 ~ 120 FH 1000 ~ 8000 teel -30 ~ 120 * ymbols in the table indicate four levels of adaptability in order of with showing the highest level of adaptability and showing the lowest level. (Adaptability high low) 031
3 Metal Disc ERVOFEX Product ineup FC P.036 Applications: NC lathe, machining center, chip mounter, actuator, CARA robot, semiconductor manufacturing equipment Max. rated torque [N m] 250 Bore ranges φ3 ~ 45 High Ultra-low inertia High response Easy to remove Wide range of options No backlash High tiffness and Ultra-low Inertia mall- and medium-capacity model, which is made of a high-strength aluminum alloy and whose outer hub is linked to the shaft to achieve a ultra-low inertia ideal for high-speed rotation. Three different shapes are available depending on the combination of bore s you use. TYPE A TYPE B TYPE C FC A2 RoH Clamping bolt material: Alloy steel for machine structural use urface finishing: olid lubricant coating *1 Element material: U304 metal disc U304 collar *2 FC DA2 imple and Reliable Connection A single clamping method is used for connection to the shaft. The clamping hub is shock and vibration proof, enabling reliable connection and helping to substantially reduce mounting time. A special jig is used for centering to achieve an extremely high concentricity. Wide Variety of Options A wide variety of options such as a tapered shaft, length-specified special order, and keyway milling application are available. You can combine options to meet your desired specifications. FC A2/DA2 BC Clamping bolt material: Alloy steel for machine structural use urface finishing: olid lubricant coating *1 Element material: U304 metal disc U304 collar *2 Clamping bolt material: Alloy steel for machine structural use urface finishing: olid lubricant coating Element material: U304 metal disc U304 collar Clamping hub material: Highstrength aluminum alloy urface finishing: Alumite treatment Bolt material: Alloy steel for machine structural use urface finishing: Trivalent chromate treatment *3 Clamping hub material: High-strength aluminum alloy urface finishing: Alumite treatment pacer material: High-strength aluminum alloy urface finishing: Alumite treatment Bolt material: Alloy steel for machine structural use urface finishing: Trivalent chromate treatment *3 *1 For surface processing of the clamping bolts, black coating is applied only for #002. *2 The collar material in the marked area is 45C in sizes #080 to #100, and the surface finishing is trivalent chrome treatment. *3 The bolt surface finishing in the marked area is anti-rust coating in sizes #080 to #100. Taper adapter material: 45C or an equivalent Clamping hub material: High-strength aluminum alloy urface finishing: Alumite treatment Bolt material: Alloy steel for machine structural use urface finishing: Trivalent chromate treatment F P.052 Applications: Machine tool, printing press, packing machine, coater/coating machine Max. rated torque [N m] 800 Bore ranges φ 8 ~ 60 High ow inertia Wide range of variations Wide Variations Parts Delivery ERVOFEX standard model. 18 types with different numbers of elements, You can order the parts of the coupling to be delivered instead of an assembled distances between shafts, shaft connection methods, etc. are available. You coupling, so you can use this coupling in a design in which the assembled coupling could not be mounted. You can also order an assembled coupling to can select the electroless nickel plating for the pilot bore and key/set screw. be delivered or combine different types of hubs. F F - M- M F - M- C et screw with hexagonal hole material: Alloy steel for machine structural use Element material: U304 metal disc Collar: 45C or an equivalent Reamer bolt material: Alloy steel for machine structural use engthspecified Metalplateable No backlash Flange material: 45C or an equivalent RoH Pressure bolt material: Alloy steel for machine structural use Pressure bolt material: Alloy steel for machine structural use Reamer bolt material: Alloy steel for machine Reamer bolt material: Alloy steel for machine structural use structural use Flange material: 45C or an equivalent Flange material: 45C or an equivalent leeve material: 45C or an equivalent Element material: U304 metal disc Collar: 45C or an equivalent Collar material: 45C or an equivalent F -C F W F G Element material: U304 metal disc Collar: 45C or an equivalent Collar material: 45C or an equivalent leeve material: 45C or an equivalent et screw with hexagonal hole material: U304 or an equivalent Element material: U304 metal disc Collar: 45C or an equivalent urface finishing: Electroless nickel plating treatment pacer material: 400 or an equivalent Element material: U304 metal disc Collar: 45C or an equivalent Element material: U304 metal disc Collar: 45C or an equivalent Flange material: 45C or an equivalent Flange material: 45C or an equivalent urface finishing: Electroless nickel plating treatment Reamer bolt material: Alloy steel for machine structural use urface finishing: Electroless nickel plating treatment Flange material: 45C or an equivalent Reamer bolt material: Alloy steel for machine structural use pacer material: Carbon steel urface finishing: Black coating or painting Reamer bolt material: Alloy steel for machine structural use 032
4 033 ETP BUHING FF ( -N ) P.046 Applications: NC lathe, machining center, chip mounter, electrical discharge machine FF (-N) Ultra-high stiffness Ultra-low inertia This model has an extremely high torsional and 300 φ 8 42 pacer material: 45C or an equivalent urface finishing: Black coating applied has achieved a high rated torque of up to 1.5 times of that Clamping hub material: 45C or an equivalent of our previous models, as well as an ultra-low inertia. High-precision Clamping Connection substantially. You can remarkably reduce mounting time. FF Element material: U304 metal disc Collar: 45C or an equivalent Element material: U304 metal disc Collar: 45C or an equivalent The number of mounting bolts has been reduced Bolt with hexagonal hole material: Alloy steel for machine structural use Bolt with hexagonal hole material: Alloy steel for machine structural use Applications: NC lathe, machining center, chip mounter, packing machine P.064 FF ow inertia Highly accurate No backlash mounting RoH Ultra-high tiffness This model was developed for use in the feed shaft of machine tools, has a high torsional and ultra-precise control. larger- shafts than the previous models. Bore ranges φ18 80 Flange material: 45C heat-treated material or an equivalent Element material: U304 metal disc Collar: 45C or an equivalent leeve material: 45C heat-treated material or an equivalent pacer material: 45C or an equivalent ROTA ERIE Metal Disc ERVOFEX ERVORIGID Metal lit HEI-CA Metal Coil pring BAUMANNFEX Pin Bushing Element material: U304 metal disc Collar: 45C or an equivalent PARAFEX ink Pressure bolt material: Alloy steel for machine structural use Application: Machine tool main shaft P.070 Quiet No backlash CHMIDT Max. rated torque [N m] 800 Bore ranges φ28 80 FM D Bolt with hexagonal hole: Alloy steel for machine structural use RoH Flange material: 45C or an equivalent Flange material: 45C or an equivalent High-speed design substantially reduces wind noise. leeve material: 45C or an equivalent urface finishing: Black coating applied Balance correction is also available as an option. A centering mechanism is provided to facilitate Element material: U304 metal disc Collar: 45C or an equivalent high-accuracy mounting. Pressure bolt material: Alloy steel for machine structural use P.076 No backlash RoH Max. Rated Torque 8000N m Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX Rubber and Plastic CENTAFEX MODE Pressure bolt material: Alloy steel for machine structural use FC Max. rated torque [N m] 8000 Bore ranges φ FF(-N) F FF FH G- K- K Element material: U304 metal disc Collar: 45C or an equivalent TEPFEX Element material: U304 metal disc Collar: 45C or an equivalent Applications: Double column machining center, printing press, testing machinery, wind turbine generator FH engthspecified pacer material: 45C or an equivalent leeve material: 45C or an equivalent High-accuracy Mounting ow inertia TORQUE IMITER FF D Pressure bolt material: Alloy steel for machine structural use Max. Rotation peed min-1 High output Ultra-high stiffness response INEAR HAFT DRIVE Dual Rubber ow inertia Highly accurate High speed mounting FH INVERTER High-rigidity Bolt with hexagonal hole material: Alloy steel for machine structural use FM Ultra-high stiffness 800 & REDUCER Rubber and Plastic FM [N m] Flange material: 45C heat-treated material or an equivalent Frictional Coupling for arge Diameters This model supports frictional coupling for Max. rated torque leeve material: 45C heattreated material or an equivalent urface finishing: Black coating applied, and enables precise shaft rotation CUTCHE & BRAKE Metal Ultra-high stiffness EECTROMAGNETIC PEED CHANGER Clamping bolt material: Alloy steel for machine structural use Clamping hub material: 45C or an equivalent Ultra-high tiffness and Ultra-low Inertia [N m] Bore ranges FF D(-N) Clamping bolt material: Alloy steel for machine structural use RoH High torque Highly accurate No backlash mounting Max. rated torque Flange material: 45C or an equivalent FM pacer material: 45C or an equivalent FH Element material: U304 metal disc Collar: 45C or an equivalent This model was developed to transmit a large torque, has an extremely high torsional, and enables precise shaft rotation and ultra-precise control. Total ength Can Be pecified The total length can be specified for a type that connects the middle of the element using a floating shaft. Reamer bolt material: Alloy steel for machine structural use Flange hub material: 45C or an equivalent Reamer bolt material: Alloy steel for machine structural use leeve material: 45C or an equivalent Pressure bolt material: Alloy steel for machine structural use 033
5 Metal Disc ERVOFEX Customization Cases FC with tap on the end FC with slit plate A slit plate for a position detection sensor can be mounted by drilling a tap hole on the end of the hub. A slit plate is mounted between the hubs to allow it to be used with position detection sensors such as an encoder and photo sensor. FC with long spacer FC with assembly This is a specification for when the mounting distance between shafts is long. It can be used in applications such as synchronization of gantry mechanism. This is a custom order specification for an assembly of the FC model, POI-OCK (shaft lock) P-K, timing pulley, and shaft. 034 For details, please visit our website. For inquiries on customization Web code Z
6 035 FAQ Q1 What are the durability and aging deterioration of the ERVOFEX? A We conduct a torsional durability test by applying a load larger than the rated torque. ERVOFEX passed the test by withstanding the metal fatigue limit of 10 million cycles of repeated load. Ervoflex is all made of metal materials so the deterioration is extremely slow, and it is able to transmit torque with high precision for a long period of time. Torque [N m] Initial static Initial Torque [N m] tatic after the durability test After 10 million cycles ETP BUHING EECTROMAGNETIC CUTCHE & BRAKE PEED CHANGER & REDUCER INVERTER INEAR HAFT DRIVE TORQUE IMITER Torsional angle [ ] Torsional angle [ ] Torsional characteristics of the ERVOFEX before and after the durability test with 10 million cycles of repeated load ROTA ERIE Metal Disc ERVOFEX Q2 When a coupling is mounted, the driven shaft runs out. What is the cause? A The runout of a driven shaft caused by a coupling is mainly attributed to the counterforce of the shaft caused by insufficient centering. All of the ERVOFEX series are assembled using high-precision special jigs to ensure high concentricity of the bores on the left and right. The counterforce of the shaft is extremely small so the runout of the driven shaft can be minimized. Counterforce [N] ERVOFEX 0 Time Metal disc coupling from a third party Counterforce [N] 0 Time Metal High-rigidity ERVORIGID Metal lit HEI-CA Metal Coil pring BAUMANNFEX Pin Bushing PARAFEX ink CHMIDT Q3 A Noise and vibrations occurred during use of a metal disc coupling. Please tell me how to prevent them. For a servo motor, noise and vibrations can be suppressed by setting the machine resonance suppression filter to its natural frequency in the control system. For a stepper motor, vibrations can be absorbed and suppressed by changing the rotation speed or using a TEPFEX coupling with high damping ability. Before adjusting the resonant filter of the servo motor After adjusting the resonant filter of the servo motor Rubber and Plastic MODE Dual Rubber TEPFEX Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX Rubber and Plastic CENTAFEX FC FF(-N) Q4 Can enough torque be transmitted using the clamping method for connection to the shaft? A Our torque transmission test uses a sufficient safety factor, so slip of the connection caused by the connection method will not occur when using the rated torque in the catalog. A keyway can be milled into the clamping hub. If you are interested, please refer to P.041 Keyway Milling Option. haft holding power [N m] 0 haft holding power (Measured value) Rated torque Bore FF FM FH F haft holding power based on FC-040DA2 bore 035
7 Metal Disc ERVOFEX FC A2 Types ingle Element Type pecifications Rated torque [N m] Parallel Misalignment Angular [ ] Max. rotation speed [min -1 ] Torsional [N m/rad] [N/mm] Type Moment of inertia [kg m 2 ] FC-002A ± C FC-005A ± C FC-010A ± C FC-020A ± C FC-025A ± C FC-030A ± Mass [kg] A B C FC-035A ± C FC-040A ± FC-050A ± A B C A B C FC-055A ± C FC-060A ± A B C FC-080A ± C FC-090A ± C FC-100A ± C * Max. rotation speed does not take into account dynamic balance. * Torsional values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore. Dimensions TYPE A TYPE B TYPE C C C M M M φn A1 φn A2 C K B d1 *1 d2 *1 Tightening D DB N A1 A2 C K M torque Type Min. Max. Min. Max. [N m] FC-002A M C FC-005A M2 0.4 ~ 0.5 C FC-010A * M2.5 *3 1.0 ~ 1.1 *3 C FC-020A M ~ 1.1 C FC-025A M ~ 1.1 C FC-030A A Over M3 1.5 ~ 1.9 B Over Over C FC-035A M4 3.4 ~ 4.1 C FC-040A2 FC-050A A Over M4 3.4 ~ 4.1 B Over Over C A Over M5 7.0 ~ 8.5 B Over Over C FC-055A M C FC-060A A Over M6 14 ~ 15 B Over Over C FC-080A M8 27 ~ 30 C FC-090A M8 27 ~ 30 C FC-100A M8 27 ~ 30 C * The rated torque of the coupling may be limited for bore s marked with *1. Consult "tandard Bore Diameters" on P.37. * The ødb value is measured assuming that the head of the clamping bolt is larger than the external of the hub. * The nominal for the clamping bolt M is equal to the quantity minus the nominal of the screw threads, where the quantity is for a hub on one side. * For items marked with *2, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, this value is 6. * For items marked with *3, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, then this is M2. The M2 tightening torque is 04 to 0.5 N m. * The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft of ø35, the tolerance is Consult Miki Pulley for special tolerances other than h7 class Unit 036 For length-specified special order parts For keyway milling applications P.041
8 037 tandard Bore Diameter tandard bore d1 tandard bore, d2 Min. Max FC-002A2 3 5 FC-005A2 3 6 FC-010A2 3 8 FC-020A FC-025A FC-030A FC-035A FC-040A FC-050A FC-055A FC-060A FC-080A FC-090A FC-100A * Bore s marked with,, or numbers are supported as the standard bore s. * Bore s marked with have restrictions on the inner of the element, so they can only be used with d2 side hubs. Example of product that cannot be manufactured: FC-020A2-11B-11B; example of product that can be manufactured: FC-020A2-10B-11B * Bore s whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore is small. The numbers indicate the rated torque [N m]. * These range of applicable bore s is between the minimum and maximum bore s of the dimensions table. Consult Miki Pulley regarding special arrangements for other bore s. Option 1 Tapered shaft supported Allows coupling via a clamping hub when a taper adapter is mounted on the tapered shaft of a servo motor. ETP BUHING EECTROMAGNETIC CUTCHE & BRAKE PEED CHANGER & REDUCER INVERTER INEAR HAFT DRIVE TORQUE IMITER ROTA ERIE Metal Disc ERVOFEX High-rigidity ERVORIGID pecifications Rated Misalignment Max. Torsional Moment Mass torque Parallel Angular rotation speed Type of inertia [kg] [N m] [ ] [min -1 ] [N m/rad] [N/mm] [kg m 2 ] FC-050A2- B-11BC ± B C FC-050A2- B-14BC ± B C FC-050A2- B-16BC ± B C FC-055A2- B-14BC ± C FC-055A2- B-16BC ± C FC-060A2- B-16BC ± B C * Max. rotation speed does not take into account dynamic balance. * Torsional values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore. Dimensions A1 A φda A M A2 WA W T Metal Rubber and Plastic MODE Metal lit HEI-CA Metal Coil pring BAUMANNFEX Pin Bushing PARAFEX ink CHMIDT Dual Rubber TEPFEX Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX Rubber and Plastic CENTAFEX TYPE B TYPE C C Tapered, 1/10 d2 Unit d2 W T WA A da DA D C A1 A2 M FC-050A2- B-11BC M5 FC-050A2- B-14BC M5 FC-050A2- B-16BC M5 FC-055A2- B-14BC M6 FC-055A2- B-16BC M6 FC-060A2- B-16BC M6 * The shape is type B or type C. FC FF(-N) F FF FM FH How to Place an Order FC-040A2-14B-15B ize Type: A2 ingle element, aluminum Bore : d1 (mall ) - d2 (arge ) B: Clamping hub *elect d2 for BC. BC: Taper adapter Option 3 For keyway milling applications P.041 To download CAD data or product catalogs: Web code A
9 Metal Disc ERVOFEX FC DA2 Types Double Element Type pecifications Rated torque [N m] Parallel Misalignment Angular [ ] Max. rotation speed [min -1 ] Torsional [N m/rad] [N/mm] Type Moment of inertia [kg m 2 ] FC-002DA (On one side) ± C ー FC-005DA (On one side) ± C ー FC-010DA (On one side) ± C ー FC-020DA (On one side) ± C ー FC-025DA (On one side) ± C ー FC-030DA (On one side) ± Mass [kg] A ー B ー C ー FC-035DA (On one side) ± C ー FC-040DA (On one side) ± FC-050DA (On one side) ± A ー B ー C ー A ー B ー C ー FC-055DA (On one side) ± C ー FC-060DA (On one side) ± A ー B ー C ー FC-080DA (On one side) ± C ー FC-090DA (On one side) ± C ー FC-100DA (On one side) ± C ー * Max. rotation speed does not take into account dynamic balance. * Torsional values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore. Dimensions TYPE A TYPE B TYPE C φn A1 P P C C M M M φd3 φn φd3 A2 P C φd3 K B d1 *1 d2 *1 Tightening D DB N P A1 A2 C d3 K M torque Type Min. Max. Min. Max. [N m] FC-002DA M C FC-005DA M2 0.4 ~ 0.5 C FC-010DA * M2.5 *3 1.0 ~ 1.1 *3 C FC-020DA M ~ 1.1 C FC-025DA M ~ 1.1 C FC-030DA Over M3 1.5 ~ 1.9 B Over Over C FC-035DA M4 3.4 ~ 4.1 C FC-040DA2 FC-050DA Over M4 3.4 ~ 4.1 B Over Over C A Over M5 7.0 ~ 8.5 B Over Over C FC-055DA M C FC-060DA A Over M6 14 ~ 15 B Over Over C FC-080DA M8 27 ~ 30 C FC-090DA M8 27 ~ 30 C FC-100DA M8 27 ~ 30 C * The rated torque of the coupling may be limited for bore s marked with *1. Consult "tandard Bore Diameters" on P.39. * The ødb value is measured assuming that the head of the clamping bolt is larger than the external of the hub. * The nominal for the clamping bolt M is equal to the quantity minus the nominal of the screw threads, where the quantity is for a hub on one side. * For items marked with *2, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, this value is 6. * For items marked with *3, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, then this is M2. The M2 tightening torque is 04 to 0.5 N m. * The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft of ø35, the tolerance is Consult Miki Pulley for special tolerances other than h7 class Unit A A 038 For length-specified special order parts For length-specified special order parts P.040 For keyway milling applications P.041
10 039 tandard Bore Diameter td. bore d1 tandard bore, d2 Min. Max FC-002DA2 3 5 FC-005DA2 3 6 FC-010DA2 3 8 FC-020DA FC-025DA FC-030DA FC-035DA FC-040DA FC-050DA FC-055DA FC-060DA FC-080DA FC-090DA FC-100DA * Bore s marked with,, or numbers are supported as the standard bore s. * Bore s marked with have restrictions on the inner of the element, so they can only be used with d2 side hubs. Example of product that cannot be manufactured: FC-020DA2-11B-11B; example of product that can be manufactured: FC-020DA2-10B-11B * Bore s whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore is small. The numbers indicate the rated torque [N m]. * These range of applicable bore s is between the minimum and maximum bore s of the dimensions table. Consult Miki Pulley regarding special arrangements for other bore s. Option 1 Tapered shaft supported Allows coupling clamping hub when a taper adapter is mounted on the tapered shaft of a servo motor. pecifications Rated Misalignment Max. Torsional Moment torque rotation Mass Parallel Angular Type of inertia speed [kg] [N m] [ ] [min -1 ] [N m/rad] [N/mm] [kg m 2 ] FC-050DA2- B-11BC (On one B ± side) C FC-050DA2- B-14BC (On one B ± side) C FC-050DA2- B-16BC (On one B ± side) C FC-055DA2- B-14BC (On one side) ± C FC-055DA2- B-16BC (On one side) ± C FC-060DA2- B-16BC (On one B ± side) C * Max. rotation speed does not take into account dynamic balance. * Torsional values given are measured values for the element alone. * The moment of inertia and mass are measured for the maximum bore. Dimensions A1 TYPE B TYPE C A C φda A Tapered, 1/10 d2 W T WA A da DA D C A1 A2 M FC-050DA2- B-11BC M5 FC-050DA2- B-14BC M5 FC-050DA2- B-16BC M5 FC-055DA2- B-14BC M6 FC-055DA2- B-16BC M6 FC-060DA2- B-16BC M6 * The shape is type B or type C. A2 M WA W 0 d T Unit ETP BUHING EECTROMAGNETIC CUTCHE & BRAKE PEED CHANGER & REDUCER INVERTER INEAR HAFT DRIVE TORQUE IMITER ROTA ERIE Metal Rubber and Plastic MODE FC FF(-N) F FF FM Metal Disc ERVOFEX High-rigidity ERVORIGID Metal lit HEI-CA Metal Coil pring BAUMANNFEX Pin Bushing PARAFEX ink CHMIDT Dual Rubber TEPFEX Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX Rubber and Plastic CENTAFEX How to Place an Order FC-040DA2-14B-15B ize Type: DA2 Double element, aluminum hub Bore : d1 (mall ) - d2 (arge ) B: Clamping hub *elect d2 for BC. BC: Taper adapter FH Option 2 For length-specified special order parts P.040 Option 3 For keyway milling applications P.041 To download CAD data or product catalogs: Web code A
11 Metal Disc ERVOFEX FC s Option 2 For length-specified special order parts FC DA2 couplings can be made in specific lengths that match the distance between shafts by changing the length of the spacer. pecify the length in 1 mm units. pecifications Rated torque [N m] Parallel Misalignment Max. rotation speed [min -1 ] Moment of inertia [kg m 2 ] Angular Type [ ] Min. Max. Min. Max. Min. Max. FC-005DA (On one side) ± C FC-010DA (On one side) ± C FC-020DA (On one side) ± C FC-025DA (On one side) ± C FC-030DA (On one side) ± Mass [kg] A B C FC-035DA (On one side) ± C FC-040DA FC-050DA (On one side) 1 (On one side) ± ± A B C A B C FC-055DA (On one side) ± C FC-060DA (On one side) * Max. rotation speed does not take into account dynamic balance. * The moment of inertia and mass are measured for the maximum bore. * ee P.38 for torsional values. ± A B C Dimensions TYPE A TYPE B TYPE C φn A1 P P C C M M M φd3 φn φd3 A2 P C φd3 K K tandard < tandard d1 *1 d2 *1 Tightening D N A1 A2 C d3 K M torque Type Min. Max. Min. Max. td. Min. Max. [N m] FC-005DA M2 0.4 ~ 0.5 C FC-010DA * M2.5 *3 1.0 ~ 1.1 *3 C FC-020DA M ~ 1.1 C FC-025DA M ~ 1.1 C FC-030DA A Over M3 1.5 ~ 1.9 B Over Over C FC-035DA M4 3.4 ~ 4.1 C FC-040DA2 FC-050DA A Over M4 3.4 ~ 4.1 B Over Over C A Over M5 7.0 ~ 8.5 B Over Over C FC-055DA M C FC-060DA A Over M6 14 ~ 15 B Over Over C * Check P.39, "tandard Bore Diameters," for the standard bore s. Also, the rated torque of the coupling may be limited for bore s marked with *1, so check that as well. * The nominal for the clamping bolt M is equal to the quantity minus the nominal of the screw threads, where the quantity is for a hub on one side. * For items marked with *2, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, this value is 6. * For items marked with *3, d1 or d2 may be from ø3 to ø7 in some cases. If d1 or d2 is ø8, then this is M2. The M2 tightening torque is 04 to 0.5 N m. * The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft of ø35, the tolerance is Consult Miki Pulley for special tolerances other than h7 class. * tandard compatible lengths range from the minimum dimension shown in the above table to the maximum. pecify the length in 1 mm units. * When the dimension is shorter than the standard, the left/right clamping bolt phases will be off by 45. Unit How to Place an Order FC-040DA2-14B-15B-60 ength-specified *Use mm units for dimensions. ize Bore : d1 (mall ) - d2 (arge ) Type: DA2 B: Clamping hub Double element, aluminum hub 040
12 041 Option 3 For keyway milling applications If you are using a keyed shaft, we can mill a keyway in the clamping hub to your specifications. The width tolerance of the keyway can be class H9 or Js9 class. ee the table below for key standards and the corresponding standard bore s. Positioning precision for keyway milling is determined by sight, so contact Miki Pulley when the keyway requires a positioning precision for a particular hub. (Cautions) FC couplings transmit torque via frictional coupling of the shaft. This means that the key must be no wider than the keyway. Pressure fitting the key may lead to damage of the coupling during mounting or operation. Note also that the clamping bolt must be tightened to the specified tightening torque. Do not tighten the bolt beyond the rated torque for the coupling. ETP BUHING EECTROMAGNETIC CUTCHE & BRAKE PEED CHANGER & REDUCER INVERTER Dimensions INEAR HAFT DRIVE FC A2 FC DA2 TORQUE IMITER T2 W2 ROTA W1 T1 W Unit H9 keyway width standards Js9 keyway width standards Nominal bore dia. Bore dia. (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Nominal bore dia. Bore dia. (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) 8BH BJ 8 3 ± BH BJ 9 3 ± BH BJ 10 3 ± BH BJ 11 4 ± BH BJ 12 4 ± BH BJ 13 5 ± BH BJ 14 5 ± BH BJ 15 5 ± BH BJ 16 5 ± BH BJ 17 5 ± BH BJ 18 6 ± BH BJ 19 6 ± BH BJ 20 6 ± BH BJ 22 6 ± BH BJ 24 8 ± BH BJ 25 8 ± BH BJ 28 8 ± BH BJ 30 8 ± BH BJ ± BH BJ ± BH BJ ± BH BJ ± BH BJ ± BH BJ ± * We can also handle standards not listed above. Consult Miki Pulley. tandard Bore Diameter tandard bore d1, d FC-025A2/DA2 FC-030A2/DA2 FC-035A2/DA2 FC-040A2/DA2 9 FC-050A2/DA FC-055A2/DA FC-060A2/DA FC-080A2/DA2 FC-090A2/DA2 FC-100A2/DA2 226 * Bore s marked with,, or numbers are supported as the standard bore s. * Bore s marked with have restrictions on the inner of the element, so they can only be used with d2 side hubs. * Bore s whose fields contain numbers are restricted in their rated torque by the holding power of the shaft connection component because the bore is small. The numbers indicate the rated torque [N m]. W1 T1 T2 ERIE Metal Rubber and Plastic MODE FC FF(-N) F FF FM FH Metal Disc ERVOFEX High-rigidity ERVORIGID Metal lit HEI-CA Metal Coil pring BAUMANNFEX Pin Bushing PARAFEX ink CHMIDT Dual Rubber TEPFEX Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX Rubber and Plastic CENTAFEX How to Place an Order FC-060A2-12BH-16BJ ize Bore : d2 (arge ) BJ: Class Js9 with keyway Bore : d1 (mall ) BH: Class H9 with keyway Type: A2 ingle element, aluminum hub DA2 Double element, aluminum hub * For equal s, select B, BH, and BJ in that order. (elect d2 for BC.) To download CAD data or product catalogs: Web code A
13 Metal Disc ERVOFEX FC s Items Checked for Design Purposes pring Characteristics FC- A2 load and amount of displacement A A2 090A2 60 oad [N] 010A A A2 055A2 060A2 040A2 050A2 030A2 025A2 020A2 005A Displacement pring Characteristics FC- DA2 load and amount of displacement DA2 090DA2 100DA2 oad [N] DA DA DA2 040DA2 060DA2 055DA2 050DA DA2 005DA2 025DA2 020DA Displacement Parallel misalignment direction load and amount of displacement DA DA2 080DA2 oad [N] DA DA2 005DA2 020DA2 040DA2 035DA2 050DA2 030DA2 025DA DA2 Parallel 042
14 043 Precautions for Handling are assembled at high accuracy using a special mounting jig to ensure accurate concentricity of left and right internal s. Take extra precautions when handling couplings, should strong shocks be given on couplings, it may affect mounting accuracy and cause the parts to break during use. (1) are designed for use within an operating temperature range of -30 C to 100 C. Although the couplings are designed to be waterproof and oilproof, do not subject them to excessive amounts of water and oil as it may cause part deterioration. (2) Handle the element with care as it is made of a thin stainless steel metal disc, also making sure to be careful so as not to injure yourself. (3) Do not tighten up clamping bolts until after inserting the mounting shaft. Mounting (1) Check that clamping bolts have been loosened and remove any rust, dust, oil residue, etc. from the inner surfaces of the shaft and couplings. (Use a waste cloth, etc. to wipe away oil residue or an oil remover as needed.) (2) Be careful when inserting the couplings into the shaft so as not to apply excessive force of compression or tensile force to the element. Be particularly careful not to apply excessive compressing force needlessly when inserting couplings into the paired shaft after attaching the couplings to the motor. (3) With two of the clamping bolts loosened, make sure that couplings move gently along the axial and rotational directions. Readjust the centering of the two shafts if the couplings fail to move smoothly enough. This method is recommended as a way to easily check the concentricity of the left and right sides. If unable to use the same method, check the mounting accuracy using machine parts quality control procedures or an alternative method. direction (5) Insert each shaft far enough in that the paired shaft touches the shaft along the entire length of the clamping hub of the coupling ( dimension) as shown in the diagram below. In addition, restrict the dimensions between clamping hub faces ( dimensions in the diagram) within the allowable misalignment of the axial direction displacement with respect to a reference value. Note that the tolerance values were calculated based on the assumption that both the level of parallel misalignment and angular deflection are zero. Adjust to keep this value as low as possible. FC-002A2/DA FC-005A2/DA FC-010A2/DA FC-020A2/DA FC-025A2/DA FC-030A2/DA FC-035A2/DA FC-040A2/DA FC-050A2/DA FC-055A2/DA FC-060A2/DA FC-080A2/DA FC-090A2/DA FC-100A2/DA ETP BUHING EECTROMAGNETIC CUTCHE & BRAKE PEED CHANGER & REDUCER INVERTER INEAR HAFT DRIVE TORQUE IMITER ROTA ERIE Metal Metal Disc ERVOFEX High-rigidity ERVORIGID Metal lit HEI-CA Metal Coil pring BAUMANNFEX Pin Bushing PARAFEX ink CHMIDT Rotational direction (4) As a general rule, round shafts are to be used for the paired mounting shaft. If needing to use a shaft with a different shape, be careful not to insert it into any of the locations indicated in the diagrams below. (Do not attempt to face keyways, D-shaped cuts, or other insertions to the grayed areas ( ).) Placing the shaft in an undesirable location may cause the couplings to break or lead to a loss in shaft holding power. It is recommended that you use only round shafts to ensure full utilization of the entire range of coupling performance. (6) Check to make sure that no compression or tensile force is being applied along the axial direction before tightening up the two clamping bolts. Use a calibrated torque wrench to tighten the clamping bolts to within the tightening torque range listed below. Clamping bolts Tightening torque [N m] FC-002A2/DA2 M ~ 0.28 FC-005A2/DA2 M2 0.4 ~ 0.5 FC-010A2/DA2 M2 0.4 ~ 0.5 FC-010A2/DA2 M ~ 1.1 FC-020A2/DA2 M ~ 1.1 FC-025A2/DA2 M ~ 1.1 FC-030A2/DA2 M3 1.5 ~ 1.9 Rubber and Plastic Dual Rubber TEPFEX Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX Rubber and Plastic CENTAFEX Proper Mounting Examples Poor Mounting Examples FC-035A2/DA2 M4 3.4 ~ 4.1 FC-040A2/DA2 M4 3.4 ~ 4.1 FC-050A2/DA2 M5 7.0 ~ 8.5 FC-055A2/DA2 M6 14 ~ 15 FC-060A2/DA2 M6 14 ~ 15 FC-080A2/DA2 M8 27 ~ 30 FC-090A2/DA2 M8 27 ~ 30 FC-100A2/DA2 M8 27 ~ 30 * Use M2 bolts on FC-010A2/DA2 models with holes with a of ø8 mm. * The start and end numbers for the tightening torque ranges are between the minimum and maximum values. Tighten bolts to a tightening torque within the specified range for the model used. MODE FC FF(-N) F FF FM FH 043
15 Metal Disc ERVOFEX FC s Items Checked for Design Purposes ength-specified pecial Order Parts Option pecify any length for the length-specified special order option for the ERVOFEX FC DA2. Use the following formula to calculate the allowable parallel misalignment value, adjust it to be no greater than that value, and then mount the coupling. θ G θ Options with Keyway Milling ERVOFEX FC models exhibit satisfactory performance in transmitting torque by the clamp mechanism, but options for keyway milling are available on request. Be aware, however, that mounting of couplings using keys and keyways involve the following issues. (1) Using Js9 class tolerances provides a tight fit, so it may be possible for couplings to become compressed when mounted on shafts. Be careful not to compress the couplings. (2) etting the fit of the key and keyway too loosely may generate rattle or dust. Also, be careful that the key does not come out. (3) Adding a set screw over the keyway may lower clamp performance or the set screw may become loose within the torque range you use or in forward/reverse operation. The structural strength of the clamping hub may also decline or the coupling be damaged, so this is not recommended. Clamping Bolts ε ε = tan θ G ε : Allowable parallel misalignment θ : Allowable angular deflection [ ] G = P + P: Total length of spacer : Gap size between clamping hub and spacer Use Miki Pulley-specified clamping bolts because they are processed with solid lubrication films (except for FC-002 M1.6). Applying adhesives to prevent loosening, oil, or the like to a clamping bolt will alter torque coefficients due to those lubricating components, creating excessive axial forces and potentially damaging the clamping bolt or coupling. Consult Miki Pulley before using such products. Note that surface processing of the clamping bolts was changed to solid lubrication film processing (Pallube) starting January 21, erial numbers of such bolts end in P. Points to Consider Regarding the Feed crew ystem ervo motor oscillation When the torsional natural frequency of the overall feed screw system is 400 to 500 Hz or less, gain adjustment of the servo motor may cause the servo motor to oscillate. Oscillation in the servo motor during operation can cause problems particularly with the overall natural frequency and electrical control systems of the feed screw system. In order for these issues to be resolved, the torsional for the coupling and feed screw section and the moment of inertia and other characteristics for the system overall will need to be adjusted and the torsional natural frequency for the mechanical system raised or the tuning function (filter function) for the electrical control system in the servo motor adjusted during the design stage. tepper motor resonance tepper motors resonate at certain rotation speeds due to the pulsation frequency of the stepper motor and the torsional natural frequency of the system as a whole. To avoid resonance, either the resonant rotation speed must be simply skipped or the torsional natural frequency considered at the design stage. Please contact Miki Pulley with any questions regarding servo motor oscillation or stepper motor resonance. How to Find the Natural Frequency of a Feed crew ystem (1) elect a coupling based on the nominal and maximum torque of the servo motor or stepper motor. (2) Find the overall natural frequency, Nf, from the torsional of the coupling and feed screw, κ, the moment of inertia of driving side, J1, and the moment of inertia of driven side, J2, for the feed screw system shown below. Motor Coupling Feed screw Bearing Table Indication of Rated Torque in pecifications Table The rated torque values of some sizes of ERVOFEX FC models were changed starting June 2009 based on test results. Consult Miki Pulley for details if you have any questions. Nf: Overall natural frequency of a feed screw system [Hz] κ : Torsional of the coupling and feed screw [N m/rad] J1: Moment of inertia of driving side [kg m 2 ] J1 J2: Moment of inertia of driven side [kg m 2 ] J2 urface Processing of Coupling Bore Diameter The bore s of ERVOFEX FC models may or may not have surface processing in some components due to the circumstances of processing (additional processing, keyway milling, etc.). This does not affect coupling performance. Consult Miki Pulley if your usage conditions require that bore s be surface processed or not. 044
16 045 election Procedures (1) Find the torque, Ta, applied to the coupling using the output capacity, P, of the driver and the usage rotation speed, n. P [kw] Ta [N m] = 9550 n [min 1 ] (2) Determine the factor κ from the load properties, and find the corrected torque, Td, applied to the coupling. Td = Ta K (Refer to the table below for values) oad properties Constant Vibrations: mall Vibrations: Medium Vibrations: arge (3) et the size so that the rated coupling torque, Tn, is higher than the corrected torque, Td. Tn Td (4) The rated torque of the coupling may be limited by the bore of the coupling. ee the pecifications and tandard Bore Diameters tables. (5) Check that the mount shaft is no larger than the maximum bore of the coupling. Contact Miki Pulley for assistance with any device experiencing extreme periodic vibrations. ETP BUHING EECTROMAGNETIC CUTCHE & BRAKE PEED CHANGER & REDUCER INVERTER INEAR HAFT DRIVE TORQUE IMITER K ROTA For servo motor drive, multiply the maximum torque, Ts, by the usage factor K = 1.2 to 1.5. ERIE Td = Ts [1.2 to 1.5] Easy ize election Chart elect a coupling size based on the rated output and the rated/maximum torque of the ordinary servo motor. The torque characteristics of servo motors vary between manufacturers, so check the specifications in the manufacturer catalog before finalizing a coupling size selection. Rated output [kw] Rated rotation speed [min -1 ] ervo motor specifications Rated torque [N m] Max. torque [N m] haft ingle element type Corresponding coupling specifications Double element type Max. bore FC-010A2 FC-010DA2 8 Metal Metal Disc ERVOFEX High-rigidity ERVORIGID Metal lit HEI-CA Metal Coil pring BAUMANNFEX FC-020A2 FC-020DA FC-025A2 FC-025DA FC-035A2 FC-035DA FC-050A2 FC-050DA FC-050A2 FC-050DA FC-050A2 FC-050DA FC-040A2 FC-040DA FC-055A2 FC-055DA FC-050A2 FC-050DA FC-050A2 FC-050DA FC-080A2 FC-080DA FC-055A2 FC-055DA FC-050A2 FC-050DA FC-080A2 FC-080DA FC-050A2 FC-050DA FC-090A2 FC-090DA FC-080A2 FC-080DA FC-055A2 FC-055DA FC-080A2 FC-080DA FC-060A2 FC-060DA FC-090A2 FC-090DA2 45 Rubber and Plastic MODE FC FF(-N) Pin Bushing PARAFEX ink CHMIDT Dual Rubber TEPFEX Jaw MIKI PUEY TARFEX Jaw PRFEX Plastic Bellows BEOWFEX Rubber and Plastic CENTAFEX F FF FM FH 045
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