MIKI PULLEY STARFLEX. General-purpose Coupling of Simple Construction. Jaw Couplings COUPLINGS. Reduced Counterforfce. Various Types of Combinations

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1 Jaw IKI PUY TARFX OUPIN Jaw IKI PUY TARFX Application Driver achine tools, hydraulic equipment, pumps, fans, conveyors, textile machinery ervo motor, stepper motor, induction motor High damping High flexibility High torque asy to mount and remove Wide range of variations RoH eneral-purpose oupling of imple onstruction otive power is transmitted by polyurethane elastomer with the elastic force of rubber. These not only excel in absorbing vibration and shock, they transmit more than double the torque of older jaw couplings. The line-up includes three types of hubs, two types of elements and two types of fit. They can provide the optimum combination for your transmission torque, response, and misalignment. ince you can combine different hubs, they can be used in a wide range of applications. Various Types of ombinations The line-up includes three types of hubs: pilotbore products that allow free bore drilling, key/ set screw types that enable high transmission torque, and clamp types that are easy to mount and remove. No backlash The R and Y types have no backlash and yet can absorb shock and vibration. Reduced ounterforfce Optimal design of the element shape reduces mounting error counterforfce to not damage the shaft. haped like older models A Y/R types A types 124

2 125 Available s OUPIN There are three IKI PUY TARFX models. ach has a different type of element. A R A Y A These are JI A tight-fit, high-torque, highresponse models that have a shore hardness of 97. These are JI A tight-fit models that have a shore hardness of 90 and are equipped with a good balance of torque transmission performance, flexibility, and responsiveness. These are JI A loose-fit, high-torque, flexible models that have a shore hardness of 97. TP UHIN TROANTI UTH & RAK PD HANR & RDUR INVRTR INAR HAFT DRIV TORQU IITR ROTA RI election /Type torque Hub material A R ~ 525 Aluminum alloy hore hardness (lement) JI A 97 lement fi t Tight fit (precompressed construction) Transmission torque Flexibility No-backlash Operating temperature [ ] etal etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX ink HIDT A Y A tructure and aterials Pilot ore Key/et crew Type lamp Type Hub material: Aluminum alloy 1.2 ~ ~ 525 lement material: Polyurethane elastomer Aluminum alloy Aluminum alloy 90 Tight fit (precompressed construction) Hexagon head set screw material: Alloy steel for machine structural use urface finishing: lack coating oose fit lamping bolt material: Alloy steel for machine structural use urface finishing: lack coating Rubber and Plastic OD A Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX Hub material: Aluminum alloy Hub material: Aluminum alloy lement material: Polyurethane elastomer Hub material: Aluminum alloy lamping hub material: Aluminum alloy lement material: Polyurethane elastomer lamping hub material: Aluminum alloy 125

3 Jaw IKI PUY TARFX OUPIN ustomization xamples Tapered coupling type How to Place an Order The amount of thrust applied to the axis can be increased with the tapered shaft installation method. A-055-R-15K-20K ize ore dia. (mall ) R : Red (Hardness 97 JI A tight fit) ore dia. (arge ) Affixing method K : Frictional coupling [N m] Torque ax. [N m] isalignment [ ] ax. rotation speed [min 1 ] Torsional [N m/rad] oment of inertia [kg m 2 ] ass [kg] A-055-R 30 (60) 60 (120) to A-065-R 80 (160) 160 (320) to * The specified torque in the above table shows the rate concerned the feeding screw application only and calculated with safety factor. Figures in ( ) is the rate of P standard TARFX oupling. * Dynamic balance is not considered for the maximum rotation speed. * The torsional values are measured at 20. * oment of Inertia and mass are measured with the maximum bore s. tandard bore and rated torque [N-m] D 1 2 R A-055-R A-065-R * The bore s marked with or numbers are supported as standard bore. * The rated torque of small bore indicated in the column with value is limited by the shaft locking mechanism. The value indicates its operating torque. * : Name of olt specified the amount of bolts on one hub and bolt size. 1: Name of Tap specified the amount of taps for release on one hub and tap size. * To tighten the pressure bolts 1, please use a torque wrench. Tightening torque is 5 : 6N-m. * The dimensional tolerance of the target shaft is h7. High-speed rotation specifications How to Place an Order These are high-speed rotation specifications for main spindles of machine tools. These hubs are processed with high precision to ensure high concentricity; they reduce imbalances and suppress vibration. A K-20K ize aterial : teel ore dia. (mall ) : reen (Hardness 63D tight fit) ore dia. (arge ) Affixing method K : Frictional coupling [N m] Torque ax. [N m] isalignment [ ] ax. rotation speed [min 1 ] Torsional [N m/rad] oment of inertia [kg m 2 ] ass [kg] A to A to * Dynamic balance is not considered for the maximum rotation speed. * The torsional values are measured at 20. * oment of Inertia and mass are measured with the maximum bore s. tandard bore D 1 2 R A A * The bore s marked with or numbers are supported as standard bore. * : Name of olt specified the amount of bolts on one hub and bolt size. 1: Name of Tap specified the amount of taps for release on one hub and tap size. * To tighten the pressure bolts 1, please use a torque wrench. Tightening torque is 5 : 6N-m, 6 : 14N-m. * The dimensional tolerance of the target shaft is h7. A-055 A crew bore dismounting 1 φ R crew bore dismounting 1 126

4 127 FAQ OUPIN Q1 How long is the IKI PUY TARFX service life? A If power transmission is your primary goal, select an appropriate coupling using the selection procedures of the catalog, then you can expect a service life of more than 10 years. ervice life will vary with usage environment and conditions and is heavily affected by usage temperature and mounting misalignment. ontact iki Pulley for details. TP UHIN TROANTI UTH & RAK PD HANR & RDUR INVRTR Q2 an they be used in excess of the nominal torque? INAR HAFT DRIV A They can, up to ten times daily when operating 8 hours per day, but not in excess of the maximum torque. This assumes startup torque of a motor with a low frequency of starting and stopping. TORQU IITR ROTA Q3 What exactly is a loose fit element? A These elements have a convex (crowning) shape to the torque transmission surface. They greatly increase the permissible mounting misalignment. They are also easy to assemble, since they set a loose fit with the hub. This can reduce the number of work steps. onvex shape (crowning) inear shape RI etal etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX ink HIDT oose fit Tight fit Q4 Does IKI PUY TARFX develop no-backlash as it ages? A IKI PUY TARFX achieves no-backlash by preliminary compression of the element, so it may not be able to maintain nobacklash as the plastic ages. If you are considering using one in no-backlash mode over a long period of time, we recommend setting the service factor based on load property to a high value. If you require high precision control for a longer period, we recommend the RVOFX series of metal disc couplings. RVOFX IKI PUY TARFX Initial static torsional Initial static torsional Initial Initial Rubber and Plastic Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX Torque Torque OD A Torsional angle [ ] After 10 million uses Torsional angle [ ] tatic torsional after reliability testing is performed Torque tatic torsional after reliability testing is performed After 10 million uses Torque Torsional angle [ ] Torsional angle [ ] 127

5 Jaw IKI PUY TARFX OUPIN A R Types pecifications Torque ax. Key/et crew Type isalignment [ ] ax. rotation speed [min -1 ] tatic torsional [N m/rad] Radial [N/mm] oment of inertia [kg m 2 ] ass [kg] A-014-R ~ A-020-R ~ A-030-R ~ A-040-R ~ A-055-R ~ A-065-R ~ A-080-R ~ A-095-R ~ A-105-R ~ * displacement of the A-014-R to A-080-R is not allowed in the negative direction. * ax. rotation speed does not take into account dynamic balance. * tiffness values given are from measurements taken at 20 * The moment of inertia and mass are measured for the maximum bore. Dimensions A-014 to 030 A-040 A-055 to Unit D 1 2 Pilot bore in. ax. A-014-R A-020-R A-030-R A-040-R A-055-R A-065-R A-080-R A-095-R A-105-R * "Pilot bore" refers to center processing. tandard ore Diameter tandard bore, A-014-R A-020-R A-030-R A-040-R A-055-R A-065-R A-080-R A-095-R A-105-R * The bore s marked with are supported as standard bore. * 11 and below have no keyway; ø12 and above can be processed for old JI standards, new JI standards, and new standard motors. * The only standard processing of bore s of the A-095 and A-105 are for new JI standards and new standard motors. How to Place an Order A-055-R-24N-28H ize ore : (mall ) - (arge ) lank: Pilot bore ore specifications lank: ompliant with the old JI standards (class 2) H: ompliant with the new JI standards N: ompliant with the new motor standards R: Hardness, 97; JI A; Tight-fit type 128

6 A R Types pecifications lamp Type 129 OUPIN isalignment [ ] ax. rotation speed [min -1 ] tatic torsional [N m/rad] Radial [N/mm] oment of inertia [kg m 2 ] A-014-R ~ A-020-R ~ A-030-R ~ A-040-R ~ A-055-R ~ A-065-R ~ A-080-R ~ * displacement is not allowed in the negative direction. * ax. rotation speed does not take into account dynamic balance. * tiffness values given are from measurements taken at 20 * The moment of inertia and mass are measured for the maximum bore. ass [kg] TP UHIN TROANTI UTH & RAK PD HANR & RDUR INVRTR INAR HAFT DRIV TORQU IITR ROTA RI Dimensions A-014 to φ Tightening D D 1 2 torque in. ax. A-014-R A-020-R A-030-R A-040-R A-055-R A-065-R A-080-R * The ød 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 is equal to the quantity minus the nominal of the screw threads, where the quantity is for a hub on one side. tandard bore, and rated transmission torque A-014-R A-020-R A-030-R A tandard ore Diameter and Rated Transmission Torque A-040-R φ A-055-R A-065-R A-080-R Unit * ore s whose fields contain numbers are supported as the standard bore s. * ore s whose fields contain numbers are restricted in their rated transmission torque by the holding power of the shaft connection component. The numbers indicate the rated transmission torque value * The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft of ø35, the tolerance is * ore s between the minimum and maximums shown in the dimensions table are compatible, but bore s other than those shown in the above table require other arrangements. ontact iki Pulley for details. A-055 to φ etal Rubber and Plastic OD A etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX ink HIDT Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX How to Place an Order A-055-R ize ore : (mall ) - (arge ) ore specifications : lamp type R: Hardness, 97; JI A; Tight-fit type To download AD data or product catalogs: Web code A

7 Jaw IKI PUY TARFX OUPIN A Y Types pecifications Key/et crew Type Torque isalignment ax. rotation ax. [ ] speed [min -1 ] tatic torsional [N m/rad] Radial [N/mm] oment of inertia [kg m 2 ] A-014-Y ~ A-020-Y ~ A-030-Y ~ A-040-Y ~ A-055-Y ~ A-065-Y ~ A-080-Y ~ A-095-Y ~ A-105-Y ~ * displacement of the A-014-Y to A-080-Y is not allowed in the negative direction. * ax. rotation speed does not take into account dynamic balance. * tiffness values given are from measurements taken at 20 * The moment of inertia and mass are measured for the maximum bore. ass [kg] Dimensions A-014 to 030 A-040 A-055 to Unit D 1 2 Pilot bore in. ax. A-014-Y A-020-Y A-030-Y A-040-Y A-055-Y A-065-Y A-080-Y A-095-Y A-105-Y * "Pilot bore" refers to center processing. tandard ore Diameter tandard bore, A-014-Y A-020-Y A-030-Y A-040-Y A-055-Y A-065-Y A-080-Y A-095-Y A-105-Y * The bore s marked with are supported as standard bore. * 11 and below have no keyway; ø12 and above can be processed for old JI standards, new JI standards, and new standard motors. * The only standard processing of bore s of the A-095 and A-105 are for new JI standards and new standard motors. How to Place an Order A-055-Y-24N-28H ize ore : (mall ) - (arge ) lank: Pilot bore ore specifications lank: ompliant with the old JI standards (class 2) H: ompliant with the new JI standards N: ompliant with the new motor standards Y: Hardness, 90; JI A; Tight-fit type 130

8 A Y Types pecifications lamp Type 131 OUPIN isalignment [ ] ax. rotation speed [min -1 ] tatic torsional [N m/rad] Radial [N/mm] oment of inertia [kg m 2 ] A-014-Y ~ A-020-Y ~ A-030-Y ~ A-040-Y ~ A-055-Y ~ A-065-Y ~ A-080-Y ~ * displacement is not allowed in the negative direction. * ax. rotation speed does not take into account dynamic balance. * tiffness values given are from measurements taken at 20 * The moment of inertia and mass are measured for the maximum bore. ass [kg] TP UHIN TROANTI UTH & RAK PD HANR & RDUR INVRTR INAR HAFT DRIV TORQU IITR ROTA RI Dimensions A-014 to φ A φ Tightening D D 1 2 torque in. ax. A-014-Y A-020-Y A-030-Y A-040-Y A-055-Y A-065-Y A-080-Y * The ød 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 is equal to the quantity minus the nominal of the screw threads, where the quantity is for a hub on one side. tandard ore Diameter and Rated Transmission Torque 2 A-055 to tandard bore, and rated transmission torque A-014-Y A-020-Y A-030-Y A-040-Y A-055-Y A-065-Y A-080-Y φ Unit * ore s whose fields contain numbers are supported as the standard bore s. * ore s whose fields contain numbers are restricted in their rated transmission torque by the holding power of the shaft connection component. The numbers indicate the rated transmission torque value * The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft of ø35, the tolerance is. * ore s between the minimum and maximums shown in the dimensions table are compatible, but bore s other than those shown in the above table require other arrangements. ontact iki Pulley for details. How to Place an Order A-055-Y ize ore : (mall ) - (arge ) ore specifications : lamp type Y: Hardness, 90; JI A; Tight-fit type etal Rubber and Plastic OD A etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX ink HIDT Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX To download AD data or product catalogs: Web code A

9 Jaw IKI PUY TARFX OUPIN A Types pecifications Key/et crew Type Torque isalignment ax. rotation ax. [ ] speed [min -1 ] tatic torsional [N m/rad] Radial [N/mm] oment of inertia [kg m 2 ] ass [kg] A ~ A ~ A ~ A ~ A ~ A ~ A ~ * ax. rotation speed does not take into account dynamic balance. * tiffness values given are from measurements taken at 20 * The moment of inertia and mass are measured for the maximum bore. Dimensions A-030 A-040 A-055 to Unit D 1 2 Pilot bore in. ax. A A A A A A A * "Pilot bore" refers to center processing. tandard ore Diameter tandard bore, A-030- A-040- A-055- A-065- A-080- A-095- A-105- * The bore s marked with are supported as standard bore. * 11 and below have no keyway; ø12 and above can be processed for old JI standards, new JI standards, and new standard motors. * The only standard processing of bore s of the A-095 and A-105 are for new JI standards and new standard motors. How to Place an Order A N-28H ize ore : (mall ) - (arge ) lank: Pilot bore ore specifications lank: ompliant with the old JI standards (class 2) H: ompliant with the new JI standards N: ompliant with the new motor standards : Hardness, 97; JI A; oose-fit type 132

10 A Types pecifications lamp Type 133 OUPIN isalignment [ ] ax. rotation speed [min -1 ] tatic torsional [N m/rad] Radial [N/mm] oment of inertia [kg m 2 ] A ~ A ~ A ~ A ~ A ~ * ax. rotation speed does not take into account dynamic balance. * tiffness values given are from measurements taken at 20 * The moment of inertia and mass are measured for the maximum bore. ass [kg] TP UHIN TROANTI UTH & RAK PD HANR & RDUR INVRTR INAR HAFT DRIV TORQU IITR ROTA A Dimensions φ 2 A φ Tightening D D 1 2 torque in. ax. A A A A A * The ød 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 is equal to the quantity minus the nominal of the screw threads, where the quantity is for a hub on one side. 2 tandard ore Diameter and Rated Transmission Torque A-055 to tandard bore, and rated transmission torque A A A A A φ Unit * ore s whose fields contain numbers are supported as the standard bore s. * ore s whose fields contain numbers are restricted in their rated transmission torque by the holding power of the shaft connection component. The numbers indicate the rated transmission torque value * The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft of ø35, the tolerance is. * ore s between the minimum and maximums shown in the dimensions table are compatible, but bore s other than those shown in the above table require other arrangements. ontact iki Pulley for details. RI etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX etal Rubber and Plastic OD A ink HIDT Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX How to Place an Order A ize ore : (mall ) - (arge ) ore specifications : lamp type : Hardness, 97; JI A; oose-fit type To download AD data or product catalogs: Web code A

11 Jaw IKI PUY TARFX OUPIN A lements Dimensions A R/Y A-014 to 030-R Y A-040-R Y F F A-055 to 065-R Y F A-080 to105-r Y F A K A K A K A K R1 R1 R1 R1 R2 Unit F R1 R2 K A A A A A A A A How to Place an Order A-055-R- ize lement only R: Hardness, 97; JI A; Tight-fit type Y: Hardness, 90; JI A; Tight-fit type A A A A-030- F A-040- F A-055 to 105- F R3 R3 R3 F R3 A A A A A A A Unit How to Place an Order A ize lement only : Hardness, 97; JI A; oose-fit type 134

12 135 et screw and keyway positions are not on the same plane. Positioning precision for keyway milling is determined by sight, so contact iki Pulley when the keyway requires a positioning precision for a particular hub. The set screws are included with the product. We also process non-standard bore s to the standards of the table below. ontact iki Pulley if you require standards other than those shown below. W1 tandard Hole-Drilling tandards A-014 to 030 A-040 A-055 to105 T2 W2 OUPIN TP UHIN TROANTI UTH & RAK PD HANR & RDUR INVRTR T1 T2 INAR HAFT DRIV φ W2 T2 W2 TORQU IITR Unit ROTA s compliant with the old JI standards (class 2) s compliant with the new JI standards s compliant with the new motor standards bore ore [ ] H7,H8 Keyway width [W1 W2] 9 Keyway height [T1 T2] et screw hole [] bore ore [ ] H7 Keyway width [W1 W2] H9 Keyway height [T1 T2] et screw hole [] bore Tolerance 3 3 Tolerance Tolerance ore [ ] 7,F7 Keyway width [W1 W2] H9 Keyway height [T1 T2] et screw hole [] RI etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX etal H H H H H H H H H H H H H H N N N N Rubber and Plastic ink HIDT Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX H H N OD H A H N H H N H H N H H N * Tolerance will be h8 class for hole equal to or less than ø10 mm. * The set screw size is 3 for A-014. Distance from et crew dge A-014 A-020 A-030 A-040 A-055 A-065 A-080 A-095 A-105 Distance from set screw edge

13 Jaw IKI PUY TARFX OUPIN A s Items hecked for Design Purposes Precautions for Handling A models come with three different types of elements and two different types of mounting hubs. e aware in their handling that their allowable values and points of caution are not the same. (1) are designed for use within an operating temperature range of -30 to 80. (2) Although elements are designed to be oilproof, do not subject them to excessive amounts of oil as it may cause deterioration. Use and storage in direct sunlight may shorten element service life, so cover elements appropriately. (3) Do not tighten up clamping bolts on clamp-type A models until after inserting the mounting shaft. isalignment ε θ [ ] δ total length A-014-R ~ ~ 22.6 A-020-R ~ ~ 30.8 A-030-R ~ ~ 36.0 A-040-R ~ ~ 67.2 A-055-R ~ ~ 79.4 A-065-R ~ ~ 91.5 ounting (1) Remove any rust, dust, oil or the like from the inner surfaces of the shaft and coupling. e particularly careful to degrease or otherwise process clamp-type couplings (which use friction to hold shafts in place) to fully remove any grease, oil, or the like that is molybdenum disulfide based or contains extremepressure additives that strongly affect coefficients of friction. (2) Insert each shaft far enough so that the paired mounting shaft touches the shaft along the entire length of the hub of the coupling (1/2 in dimensions table). oupling size , (3) To get full coupling performance, mount couplings so that differences between coupling centers during operation are within the misalignment shown in the specifications table. However, this misalignment is the maximum value when each occurs independently, so make the allowable value when they combine 50% or less of this value. (4) heck centering by holding a straight-edge to the outer circumference of the main body, using two points about 90 apart. Use the dimension of the dimensions table to check the axial displacement, measuring the full length of the coupling after mounting. lement service life is greatly affected by the precision of centering. We recommend matching of centering locations as the method for centering two shafts. A-080-R ~ ~ A-095-R ~ ~ A-105-R ~ ~ ε θ [ ] δ total length A-014-Y ~ ~ 22.6 A-020-Y ~ ~ 30.8 A-030-Y ~ ~ 36.0 A-040-Y ~ ~ 67.2 A-055-Y ~ ~ 79.4 A-065-Y ~ ~ 91.5 A-080-Y ~ ~ A-095-Y ~ ~ A-105-Y ~ ~ ε θ [ ] δ total length A ~ ~ 36.0 A ~ ~ 67.2 A ~ ~ 79.4 A ~ ~ 91.5 A ~ ~ A ~ ~ A ~ ~ (5) Tighten set screws with hex socket heads and clamping bolts to the tightening torques shown below using a calibrated torque screwdriver or torque wrench. ize of hex-socket-head set screw Tightening torque lamping bolt size Tightening torque (6) Do not use any hex-socket-head set screw or clamping bolt other than those specified by iki Pulley. Do not apply oil, grease, or screw fixatives. 136

14 137 election Procedures A models can be selected in one of two ways depending on their mode of use: ordinary use or no-backlash use (exploiting their pre-compressed construction). When considering use of couplings in no-backlash mode, however, be sure that use will be at a torque that is low enough for the nominal torque of the coupling. Note that selection criteria are different for ordinary use and use in no-backlash mode. When considering use of couplings in no-backlash mode, select from among the A-R and A-Y types. A- types cannot be used in no-backlash mode. Ordinary use (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 = 9550 n[min 1 ] (2) Determine the service factor K from the usage and operating conditions, and find the corrected torque, Td, applied to the coupling. Td = Ta K1 K2 K3 K4 ervice factor based on load property: K1 oad properties onstant Vibrations: mall Vibrations: edium Vibrations: arge K ervice factor based on operating time: K2 Hrs./day K ervice factor based on starting/braking frequency: K3 Times/hr Over 240 K ervice factor based on operating temperature: K4 Temperature [ ] K (3) et the size so that the nominal torque of the coupling Tn is at least equal to the corrected torque, Td. Tn Td (4) elect a size that results in a maximum torque, Tm, for the coupling that is at least equal to the peak torque, Ts, generated by the driver, follower or both. aximum torque refers to the maximum amount of torque that can be applied for a set amount of time considering eight hours of operation per day and up to around ten instances. Tm Ts K4 (5) When the required shaft exceeds the maximum bore of the selected size, select a suitable coupling. (6) When the coupling is used in machinery prone to periodic violent load-torque fluctuations, torsional vibration must also be considered in addition to the above selection criteria. In other words, check that the vibration frequency of the torque fluctuation does not match the natural frequency of the shafting. The natural frequency is generally calculated by finding the natural frequency, fe, of one section, approximating the shafting as shown in the diagram below. fe = 1 2π κ ( ) J A J [Hz] J κ: tatic torsional of coupling [N m/rad] JA: oment of inertia of driving side [kg m ² ] J: oment of inertia of driven side [kg m ² ] JA κ No-backlash use (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 = 9550 n[min 1 ] (2) Determine the service factor K from the usage and operating conditions, and find the corrected torque, Td, applied to the coupling. Td = Ta K1 K2 K3 K4 ervice factor based on load property: K1 oad properties onstant Vibrations: mall Vibrations: edium Vibrations: arge K * When using in no-backlash mode, be sure that K1 4. ervice factor based on operating time: K2 Hrs./day K ervice factor based on starting/braking frequency: K3 Times/hr Over 240 K ervice factor based on operating temperature: K4 Temperature [ ] K (3) elect a size that results in a peak torque Ts generated by the driver, follower or both that is no greater than the nominal torque Tn for the coupling. Tn Ts K4 (4) When the required shaft exceeds the maximum bore of the selected size, select a suitable coupling. When using a clamping hub, the bore may restrict the transmission torque. For that reason, check that the clamping-hub shaft holding force of the selected coupling size is at least equal to the peak torque, Ts, applied to the coupling. can structurally be used in no-backlash mode while the element is pre-compressed, but backlash may start to occur with use. If you are considering using the coupling in no-backlash mode over a long period of time, we recommend setting the service factor K1 to a high value. If you require higher precision control/positioning for a long period of time, we recommend our RVOFX series of metal disc couplings. OUPIN TP UHIN TROANTI UTH & RAK PD HANR & RDUR INVRTR INAR HAFT DRIV TORQU IITR ROTA RI etal Rubber and Plastic OD A etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX ink HIDT Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX 137

15 Jaw IKI PUY TARFX OUPIN A s Items hecked for Design Purposes Induction otor pecifications and asy election Table Output [kw] 0.1 otor Frequency [Hz] 50 Hz: 3000 min -1, 60 Hz: 3600 min Hz: 1500min -1, 60 Hz: 1800min Hz: 1000min -1, 60 Hz: 1200min -1 Two-pole motor IKI PUY TARFX Four-pole motor IKI PUY TARFX ix-pole motor IKI PUY TARFX haft Torque bore haft Torque bore haft A A Torque bore A A A A A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A-080-R 42N A N A N A N A N A N A-095-R 48N A N A N A N A N A N A-095-R 55N A N A N A-095-R 55N A N A-095-R 48N A-095-R 55N A N A N A-095-R 55N A N A-095-R 55N N A N A-095-R 55N A-105-R 60N A N A-105-R 60N A N A-105-R 60N A N N A N A-105-R 60N * The above table shows appropriate sizes for key types in ordinary use in an induction motor driver. It is not for making selections for use with no-backlash specifications. * otor rotation speed and output torque are calculated (reference) values. 138

16 139 ervo otor pecifications and asy election Table OUPIN ervo motor specifications orresponding coupling specifications TP UHIN Rated output [kw] Rated rotation speed [min -1 ] Rated torque ax. torque haft A- -R ax. bore A-020-R A-020-R A-030-R A-030-R A-055-R A-055-R A-055-R A-040-R A-055-R A-055-R A-055-R A-065-R A-055-R A-055-R A-065-R A-055-R A-065-R A-065-R A-055-R A-065-R A-055-R A-065-R 35 * The above table was set up in simple terms for clamp types based on the shaft s of compatible servo motors and the rated transmission torque of the coupling. It is not guaranteed when using the couplings in the no-backlash mode. TROANTI UTH & RAK PD HANR & RDUR INVRTR INAR HAFT DRIV TORQU IITR ROTA RI etal etal Disc RVOFX High-rigidity RVORIID etal lit HI-A etal oil pring AUANNFX Pin ushing PARAFX ink HIDT Rubber and Plastic Dual Rubber TPFX Jaw IKI PUY TARFX Jaw PRFX Plastic ellows OWFX Rubber and Plastic NTAFX OD A 139