Flexible Couplings and Hub-shaft Connections COUPLINGS

Transcription

1 Flexible ouplings and Hub-shaft onnections OUPLING

2 Jaw ouplings With A implified tructure Tucking A Buffer Material Between Two Hubs Features of Buffer Material TAR FLEX, the flexible couplings, are derived as the result of mikipulley s technology developed by long years of experiences and support by the advance AE system. For the element as a buffer material, three types of couplings are provided with two different hardness and two different fitting designs. High transmission torque compared to our conventional couplings has been achieved. An optimahaft linkage is thus provided by selecting the couplings according to the responsiveness and the amount of misalignment. OFT TIGHT HARD TIGHT HARD LOOE TARFLEX 7

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4 TARFLEX Jaw ouplings with a implified tructure Power is transferred by the polyurethane elastomer with the elastic force of rubber, which has superior vibration and shock absorbability. High torque transmission that is more than double that of conventional mikipulley s jaw couplings is achieved by pursuing the optimahape. Although it is a high transmission torque, misalignment reaction force has been significantly reduced by undercuts of the inner diameter side. While use with no backlash is available by a design allowing preliminary compression (AL-R AL-Y), the couplings can be used for the target shaft or bearing with damage-free. Also, the couplings are compliant with the EU Restriction of Hazardous ubstances Directive, RoH Direcctive, that prohibits six hazardous materials such as mercury, lead, and others. Optimal design by 3D-AD and FEM analysis The advanced AE system is utilized in the starting stage of design. s are designed by using 3D-AD. hapes and strength design are optimized by using the advanced finite element method (FEM) analysis software. THRUT TORQUE THRUT TORQUE With optimally designed element shapes, higher torque transmission and reduced misalignment reaction force are realized. High torque transmission that is more than double that of mikipulley s conventional jaw couplings with respect to the outside diameter is achieved by modifying the shape of the torque transmitting part and rigorously selecting materials. Moreover, AL-B type with uncompressed loose fit shape can increase the permissible misalignment by modifying the torque transmission part to crowning shape. In addition, no backlash couplings that are easy on the target shafts are realized by placing undercuts to the inner diameter side to reduce the misalignment reduction force. Torque transmitting part traight shape Torque transmitting part ircular shape onvex shape (rowning shape) Undercut onventional element TAR FLEX element with a circular shape torque transmission part The torque transmission part of AL-B type element has a crowning shape Undercut common to all models 72

5 FULL LINEUP RED (HARD TIGHT) Element hardness: 97 JI A Preliminary compressed tight fit shape No hazardous substances used, RoH Directive compliant High torque implified servo For stepping motor For general purpose motor YELLOW (OFT TIGHT) Element hardness: 9 JI A Preliminary compressed tight fit shape No hazardous substances used, RoH Directive compliant implified servo For stepping motor For general purpose motor BLUE (HARD LOOE) Element hardness: 97 JI A Uncompressed loose fit shape No hazardous substances used, RoH Directive compliant High torque, high flexibility For general purpose motor 73

6 AL MODEL TAR FLEX AL Element RED (HARD/TIGHT) Element YELLOW (OFT/TIGHT) Element BLUE (HARD/LOOE) Pilot bore item Key/set screw type lamp type Pilot bore item Key/set screw type lamp type Pilot bore item Key/set screw type lamp type AL- -R AL- -R- H- H AL- -R- B- B AL- -Y AL- -Y- H- H AL- -Y- B- B AL- -B AL- -B- H- H AL- -B- B- B tructure and Material Pilot bore item Key/set screw type lamp type Hub Material: Aluminum alloy Element Material: Polyurethane elastomer Key/set screw type Hexagon socket set screw Material: M435 urface treatment: Black oxide finish lamp bolt Material: M435 urface treatment: Black oxide finish TAR FLEX AL Hub Material: Aluminum alloy Hub Material: Aluminum alloy Element Material: Polyurethane elastomer Hub Material: Aluminum alloy lamp hub Material: Aluminum alloy Element Material: Polyurethane elastomer lamp hub Material: Aluminum alloy 74

7 TAR FLEX AL AL MODEL 75

8 AL-R TYPE Key/et crew Type pecification Torque permissible misalignment rotation Angular Normal Parallel offset Axial displacement misalignment speed [N m] [N m] [mm] [ ] [mm] [min -1 ] Torsional stiffness [N m/rad] Radial displacement [N/mm] Moment of inertia [kg m 2 ] AL-14-R to x AL-2-R to x AL-3-R to x AL-4-R to x AL-55-R to x AL-65-R to x AL-8-R to x AL-95-R to x AL-15-R to x * The spring constant values are measured at 2. * The indicated values in the moment of inertia and mass are measured with the maximum bore diameter. * Dynamic balance is not considered for the maximum rotation speed. * Negative axial displacements of AL-14 to 8-R are not allowed. Dimensions Mass [kg] tandard bore processed item price Pilot bore item price AL-14 to 3 L L1 E L2 AL-4 L L1 E L2 AL-55 to 15 L L1 E L2 AD AD d1 d2 ød d1 d2 ød d1 d2 ød Unit [mm] TAR FLEX AL d1 d2 AD D L L1 L2 E Pilot bore file No. AL-14-R AL-HH1 AL-2-R AL-HH2 AL-3-R AL-HH3 AL-4-R AL-HH4 AL-55-R AL-HH5 AL-65-R AL-HH6 AL-8-R AL-HH7 AL-95-R AL-15-R * Pilot bore indicates center processing. tandard bore diameter tandard bore diameter d1 d2 [mm] AL-14-R AL-2-R AL-3-R AL-4-R AL-55-R AL-65-R AL-8-R AL-95-R AL-15-R * The bore diameters with are supported as standard bore diameters. * Processing with the no keyway is available for ø11 or smaller, and processing for the former JI, new JI, and new standard motor is available for ø12 or larger. * New JI and processing compatible to new standard motor are set as the only standards for the bore diameters of AL-95 and 15. Ordering Information AL R - 24N - 28H ize Element type R: Hardness 97 JI A tight fit Bore dia.: d1(small bore)-d2(big bore) Blank: Pilot bore item Bore specification Blank: Previous edition JI (lass 2) compliance H: New JI compliance N: New standard motor compliance 76

9 AL-R TYPE lamp Type pecification Torque permissible misalignment rotation Angular Normal Parallel offset Axial displacement misalignment speed [N m] [N m] [mm] [ ] [mm] [min -1 ] Torsional stiffness [N m/rad] Radial displacement [N/mm] Moment of inertia [kg m 2 ] AL-14-R to x AL-2-R to x AL-3-R to x AL-4-R to x AL-55-R to x AL-65-R to x AL-8-R to x * The torsionatiffness values are measured at 2. * The indicated values in the moment of inertia and mass are measured with the maximum bore diameter. * Dynamic balance is not considered for the maximum rotation speed. Mass [kg] Price Dimensions AL-14 to 3 L AL-4 L AL-55 to 8 L AD AD L1 E L2 L1 E L2 L1 E L2 B B M B B B B ød1 ød2 ød ød1 ød2 ød ød1 ød2 ød G G G ødb M ødb M ødb Unit [mm] d1 d2 D DB L L1 L2 E B G M Tightening Torque [N m] AD file No. AL-14-R M2.4 AL-BB1 AL-2-R M2.5 1 AL-BB2 AL-3-R M3 1.5 AL-BB3 AL-4-R M5 7 AL-BB4 AL-55-R M6 14 AL-BB5 AL-65-R M8 3 AL-BB6 AL-8-R M8 3 AL-BB7 tandard bore diameter and permissible transmission torque TAR FLEX AL tandard bore diameter d1 d2 [mm] and permissible transmission torque [N m] AL-14-R AL-2-R AL-3-R AL-4-R AL-55-R AL-65-R AL-8-R * The bore diameters with a value are supported as standard bore diameters. * The permissible transmission torque of the shaft diameter with a value is limited by the holding power at the shaft locking mechanism. The value indicates the permissible transmission torque [N m]. +.1 * The dimensional tolerance of the target shaft is h7. However, for a shaft diameter of 35, the tolerance is * The range of bore diameters that can be supported is from the minimum diameter to the maximum diameter in the table. For bore diameters other than above, contact us for separate arrangement. Ordering Information AL R - 24B - 28B ize Element type R: Hardness 97 JI A tight fit Bore diameter: d1(small bore)-d2(big bore) Bore specification B: lamp type The latest AD data can be downloaded from our website. AD AD The AD mark indicates that AD data is available by D-ROM. The AD file No. represents the file name in the D-ROM. 77

10 AL-Y TYPE Key/et crew Type pecification Dimensions Torque permissible misalignment rotation Angular Normal Parallel offset Axial displacement misalignment speed [N m] [N m] [mm] [ ] [mm] [min -1 ] Torsional stiffness [N m/rad] Radial displacement [N/mm] Moment of inertia [kg m 2 ] AL-14-Y to x AL-2-Y to x AL-3-Y to x AL-4-Y to x AL-55-Y to x AL-65-Y to x AL-8-Y to x AL-95-Y to x AL-15-Y to x * The spring constant values are measured at 2. * The indicated values in the moment of inertia and mass are measured with the maximum bore diameter. * Dynamic balance is not considered for the maximum rotation speed. * Negative axial displacements of AL-14 to 8-Y are not allowed. Mass [kg] tandard bore processed item price Pilot bore item price AL-14 to 3 L L1 E L2 AL-4 L L1 E L2 AL-55 to 15 L L1 E L2 AD d1 d2 ød d1 d2 ød d1 d2 ød Unit [mm] TAR FLEX AL d1 d2 AD D L L1 L2 E Pilot bore file No. AL-14-Y AL-HH1 AL-2-Y AL-HH2 AL-3-Y AL-HH3 AL-4-Y AL-HH4 AL-55-Y AL-HH5 AL-65-Y AL-HH6 AL-8-Y AL-HH7 AL-95-Y AL-15-Y * Pilot bore indicates center processing. tandard bore diameter tandard bore diameter d1 d2 [mm] AL-14-Y AL-2-Y AL-3-Y AL-4-Y AL-55-Y AL-65-Y AL-8-Y AL-95-Y AL-15-Y * The bore diameters with are supported as standard bore diameters. * Processing with no keyway is available for ø11 or smaller, and processing for the former JI, new JI, and new standard motor is available for ø12 or larger. * New JI and processing compatible to new standard motor are set as the only standards for the bore diameters of AL-95 and 15. Ordering Information AL Y - 24N - 28H ize Element type Y: Hardness 97 JI A tight fit Bore dia.: d1(small bore)-d2(big bore) Blank: Pilot bore item Bore specification Blank: Previous edition JI (lass 2) compliance H: New JI compliance N: New standard motor compliance 78

11 AL-Y TYPE lamp Type pecification Torque permissible misalignment rotation Angular Normal Parallel offset Axial displacement misalignment speed [N m] [N m] [mm] [ ] [mm] [min -1 ] Torsional stiffness [N m/rad] * The torsionatiffness values are measured at 2. * The indicated values in the moment of inertia and mass are measured with the maximum bore diameter. * Dynamic balance is not considered for the maximum rotation speed. Radial displacement [N/mm] Moment of inertia [kg m 2 ] AL-14-Y to x AL-2-Y to x AL-3-Y to x AL-4-Y to x AL-55-Y to x AL-65-Y to x AL-8-Y to x Mass [kg] Price Dimensions AL-14 to 3 L AL-4 L AL-55 to 8 L AD L1 E L2 L1 E L2 L1 E L2 B B M B B B B ød1 ød2 ød ød1 ød2 ød ød1 ød2 ød G G G ødb M ødb M ødb Unit [mm] d1 d2 D DB L L1 L2 E B G M tandard bore diameter and permissible transmission torque Tightening Torque [N m] AD file No. AL-14-Y M2.4 AL-BB1 AL-2-Y M2.5 1 AL-BB2 AL-3-Y M3 1.5 AL-BB3 AL-4-Y M5 7 AL-BB4 AL-55-Y M6 14 AL-BB5 AL-65-Y M8 3 AL-BB6 AL-8-Y M8 3 AL-BB7 TAR FLEX AL tandard bore diameter d1 d2 [mm] and permissible transmission torque [N m] AL-14-Y AL-2-Y AL-3-Y AL-4-Y AL-55-Y AL-65-Y AL-8-Y * The bore diameters with a value are supported as standard bore diameters. * The permissible transmission torque of the shaft diameter with a value is limited by the holding power at the shaft locking mechanism. The value indicates the permissible transmission torque [N m]. * The dimensional tolerance of the target shaft is h7. However, for a shaft diameter of 35, the tolerance is * The range of bore diameters that can be supported is from the minimum diameter to the maximum diameter in the table. For bore diameters other than above, contact us for separate arrangement. Ordering Information AL Y - 24B - 28B ize Element type Y: Hardness 97 JI A tight fit Bore diameter: d1(small bore)-d2(big bore) Bore specification B: lamp type The latest AD data can be downloaded from our website. AD AD The AD mark indicates that AD data is available by D-ROM. The AD file No. represents the file name in the D-ROM. 79

12 AL-B TYPE Key/et crew Type pecification Torque permissible misalignment rotation Angular Normal Parallel offset Axial displacement misalignment speed [N m] [N m] [mm] [ ] [mm] [min -1 ] Torsional stiffness [N m/rad] Radial displacement [N/mm] Moment of inertia [kg m 2 ] AL-3-B to x AL-4-B to x AL-55-B to x AL-65-B to x AL-8-B to x AL-95-B to x AL-15-B to x * The spring constant values are measured at 2. * The indicated values in the moment of inertia and mass are measured with the maximum bore diameter. * Dynamic balance is not considered for the maximum rotation speed. Mass [kg] tandard bore processed item price Pilot bore item price Dimensions AL-3 L L1 E L2 AL-4 L L1 E L2 AL-55 to 15 L L1 E L2 AD d1 d2 ød d1 d2 ød d1 d2 ød Unit [mm] d1 d2 AD D L L1 L2 E Pilot bore file No. AL-3-B AL-HH3 AL-4-B AL-HH4 AL-55-B AL-HH5 AL-65-B AL-HH6 AL-8-B AL-HH7 AL-95-B AL-15-B * Pilot bore indicates center processing. TAR FLEX AL tandard bore diameter tandard bore diameter d1 d2 [mm] AL-3-B AL-4-B AL-55-B AL-65-B AL-8-B AL-95-B AL-15-B * The bore diameters with are supported as standard bore diameters. * Processing with no keyway is available for ø11 or smaller, and processing for the former JI, new JI, and new standard motor is available for ø12 or larger. * New JI and processing compatible to new standard motor are set as the only standards for the bore diameters of AL-95 and 15. Ordering Information AL B - 24N - 28H ize Element type B: Hardness 9 JI A loose fit Bore dia.: d1(small bore)-d2(big bore) Blank: Pilot bore item Bore specification Blank: Previous edition JI (lass 2) compliance H: New JI compliance N: New standard motor compliance 8

13 AL-B TYPE lamp Type pecification Torque permissible misalignment rotation Angular Normal Parallel offset Axial displacement misalignment speed [N m] [N m] [mm] [ ] [mm] [min -1 ] Torsional stiffness [N m/rad] Radial displacement [N/mm] Moment of inertia [kg m 2 ] AL-3-B to x AL-4-B to x AL-55-B to x AL-65-B to x AL-8-B to x * The torsionatiffness values are measured at 2. * The indicated values in the moment of inertia and mass are measured with the maximum bore diameter. * Dynamic balance is not considered for the maximum rotation speed. Mass [kg] Price Dimensions AL-3 L AL-4 L AL-55 to 8 L AD L1 E L2 L1 E L2 L1 E L2 B B M B B B B ød1 ød2 ød ød1 ød2 ød ød1 ød2 ød G G G ødb M ødb M ødb Unit [mm] d1 d2 D DB L L1 L2 E B G M Tightening Torque [N m] AD file No. AL-3-B M3 1.5 AL-BB3 AL-4-B M5 7 AL-BB4 AL-55-B M6 14 AL-BB5 AL-65-B M8 3 AL-BB6 AL-8-B M8 3 AL-BB7 tandard bore diameter and permissible transmission torque tandard bore diameter d1 d2 [mm] and permissible transmission torque [N m] AL-3-B AL-4-B AL-55-B AL-65-B AL-8-B * The bore diameters with a value are supported as standard bore diameters. * The permissible transmission torque of the shaft diameter with a value is limited by the holding power at the shaft locking mechanism. The value indicates the permissible transmission torque [N m]. * The dimensional tolerance of the target shaft is h7. However, for a shaft diameter of 35, the tolerance is * The range of bore diameters that can be supported is from the minimum diameter to the maximum diameter in the table. For bore diameters other than above, contact us for separate arrangement. Ordering Information AL B - 24B - 28B ize Element type B: Hardness 97 JI A loose fit Bore diameter: d1(small bore)-d2(big bore) Bore specification B: lamp type TAR FLEX AL The latest AD data can be downloaded from our website. AD AD The AD mark indicates that AD data is available by D-ROM. The AD file No. represents the file name in the D-ROM. 81

14 AL MODEL Element Dimensions AL-R Y AL-14 to 3-R Y AL-4-R Y AL-55 to 65-R Y AL-8 to 15-R Y F F F F A K A K A K A K Unit [mm] F R1 R2 K A Price AD file No. AL-14- -EL AL-2- -EL AL-3- -EL AL-4- -EL AL-55- -EL AL-65- -EL AL-8- -EL AL-95- -EL AL-15- -EL Ordering Information AL R - EL ize Element only Element type R: Hardness 97 JI A tight fit Y: Hardness 9 JI A tight fit AL-B AL-3-B F AL-4-B F AL-55 to 15-B F R3 R3 R3 R1 R1 R1 R1 R2 TAR FLEX AL Unit [mm] F R3 Price AD file No. AL-3-B-EL AL-4-B-EL AL-55-B-EL AL-65-B-EL AL-8-B-EL AL-95-B-EL 2 47 AL-15-B-EL 21 5 Ordering Information AL B - EL ize Element only Element type B: Hardness 97 JI A loose fit 82

15 AL MODEL Bore Drilling tandard Dimensions For any bore diameter other than the standard bore diameter, processing is available according to the standard shown in the table below. For any standard other than the table below, contact our distributor. W1 M AL-14 to 3 M AL-4 ød2 AL-55 to 15 T2 W2 M W2 T1 ød2 T2 ød1 T2 M W2 ød2 Unit [mm] Nominal bore dia. Previous edition JI (lass 2) compliance New JI compliance New standard motor compliance Bore diameter (d1-d2) Keyway width (W1 W2) Tolerance H7,H8 E9 Keyway height (T1 T2) et screw bore (M) Nominal bore dia. Bore diameter (d1-d2) * The bore diameters 1 or smaller have H8 class tolerance. * For AL-14, the size of the set screw is M3. * The right and left positions of the set screw and keyway are not on the same plane. Keyway width (W1 W2) +.3 Tolerance H7 H9 Keyway height (T1 T2) et screw bore (M) Nominal bore dia. Bore diameter (d1-d2) Keyway width (W1 W2) +.3 Tolerance G7,F7 H9 Keyway height (T1 T2) et screw bore (M) M M M M M M M M M M M M4 12H M M4 14H M4 14N M M4 15H M M4 16H M M4 17H M M4 18H M M4 19H M5 19N M M4 2H M M6 22H M M6 24H M6 24N M M6 25H M M6 28H M6 28N M M6 3H M M8 32H M M8 35H M M8 38H M8 38N M M8 4H M M8 42H M8 42N M M8 45H M M8 48H M1 48N M M8 5H M M1 55H M1 55N M M1 56H M M1 6H M1 6N M1 TAR FLEX AL The latest AD data can be downloaded from our website. AD AD The AD mark indicates that AD data is available by D-ROM. The AD file No. represents the file name in the D-ROM. 83

16 AL MODEL Design heck Items Mounting (general) Before mounting, make sure the main power of the device is turned off so as to avoid operating the motor by mistake and to ensure safety. Remove the dust, dirt, and oil accumulated on the target shaft and coupling inner diameter part. To achieve maximum performance of the coupling, perform mounting within the range of the maximum permissible misalignment shown in the tables below. The misalignments in the tables below are the maximum values when they occur independently. Therefore, the permissible values in the case of combined errors are half or less. heck the centering at two points about 9 degrees away by applying a straight edge to the circumference of the main body. The life of the element is significantly affected by the centering accuracy. For centering of the left and right mounting shafts, centering location alignment is recommended. After mounting of this product, affix a safety cover. Touching this product during operation may cause injury. permissible misalignment Parallel offset Angular misalignment Table of max. permissible misalignments Parallel offset ε [mm] Axial displacement Angular misalignment θ [ ] Axial displacement δ [mm] AL-14-R.1 1 to +.6 AL-2-R.1 1 to +.8 AL-3-R.1 1 to +1. AL-4-R.1 1 to +1.2 AL-55-R.1 1 to +1.4 AL-65-R.1 1 to +1.5 AL-8-R.1 1 to +1.8 AL-95-R to +2. AL-15-R to +2. Mounting (clamp type) The recommended dimensional tolerance of the target shaft is +.1 h7. (However, for a shaft diameter of 35, the tolerance is (.25 ).) Do not tighten the clamp bolt before inserting the target shaft. Remove the dust, dirt, and oil accumulated on the target shaft and coupling inner diameter part. Especially, if molybdenum disulfide grease or extreme-pressure grease that greatly affect the friction coefficient are accumulated, completely remove them by degreasing, etc. To fix the hub to the shaft, mount it so that the entire length of the clamp hub is in contact with each of the target shafts. Tighten the clamp bolt using a calibrated torque wrench at the clamp bolt tightening torque value in the table below. User the clamp bolt specified by Miki Pulley. Do not apply any liquid such as oil, grease, or screw fixing agent. Tightening torque for set screws and clamp bolts ize et screw [N m] lamp bolt [N m] M2.4 M M M4 1.7 M M M M1 28. Mounting location and usage environment Use under direct sunlight may result in a shorter element life. Use an appropriate cover. It is water-resistant and oil-resistant. However, excessive water or oihould be avoided because they may cause deterioration. Avoid corrosive gases and chemicals. Avoid high temperature and high humidity. The recommended operating atmospheric temperature is -3 to +8. TAR FLEX AL Parallel offset ε [mm] Angular misalignment θ [ ] Axial displacement δ [mm] AL-14-Y.1 1 to +.6 AL-2-Y.15 1 to +.8 AL-3-Y.15 1 to +1. AL-4-Y.1 1 to +1.2 AL-55-Y.15 1 to +1.4 AL-65-Y.15 1 to +1.5 AL-8-Y.15 1 to +1.8 AL-95-Y to +2. AL-15-Y to +2. Parallel offset ε [mm] Angular misalignment θ [ ] Axial displacement δ [mm] AL-3-B to +1. AL-4-B to +1.2 AL-55-B to +1.4 AL-65-B to +1.5 AL-8-B to +1.8 AL-95-B to +2. AL-15-B to

17 election election Procedure 1: General use (1) alculate torque Ta applied to the coupling based on the motor output P and coupling operating rotation speed n. Ta [N m] = 955 Td [N m] = Ta K1 K2 K3 K4 P [kw] n [min 1 ] (2) alculate corrected torque Td applied to the coupling after deciding the service factor K (1, 2, 3, 4). K1: Operating coefficient by load character K2: orrected coefficient by operating hours K3: orrected coefficient by starting/braking frequency K4: orrected coefficient by ambient temperature (3) elect the size in order that the coupling permissible torque Tn becomes equal or greater or equal to the corrected torque Td. Tn Td (4) elect the size in order that the maximum torque of the coupling Tm becomes equal or greater or equal to the peak torque Ts generated by the motor or driven machine, or both. Maximum torque is defined as torque which can be temporarily applied. For 8-hour operating time per day, it is about 1 times. Tm Ts K4 (5) If the required shaft diameter is over the maximum bore diameter of the selected size, select a coupling suiting it. (2) alculate corrected torque Td applied to the coupling after deciding the service factor K (1, 2, 3, 4) defined according to the use and operation conditions. Td [N m] = Ta K1 K2 K3 K4 K1: Operating coefficient by load character K2: orrected coefficient by operating hours K3: orrected coefficient by starting/braking frequency K4: orrected coefficient by ambient temperature * For use with no backlash, K1 4. (3) Perform selection so that the peak torque Ts generated by the motor, driven machine, or both is less or equal to the normal torque of the coupling Tn. Tn Ts K4 (4) If the required shaft diameter exceeds the maximum bore diameter of the selected size, select the size of coupling respectively. When a clamp hub is used, torque transmission may be limited depending on the bore diameter. Therefore, make sure that the clamp hub holding power for the selected coupling size is equal or greater than peak torque Ts applied to the coupling. Because of the structure of the coupling, no backlash occurs while preliminary compression is applied to the element. However, backlash may occur as it is used over time. When use with no backlash for a long period is considered, it is recommended that the service factor K1 be greater. If high precision control and positioning are required for a long period, our metal plate spring couplings ERVO FLEX eries are recommended. (6) When using with machines whose load torque fluctuates drastically on periodic basis, a study of torsional vibration is necessary in addition to the procedure mentioned above. Make sure that the frequency of torque fluctuation does not coincide with the eigenfrequency fe of the shaft system. Generally, eigenfrequency fe is calculated by approximating the shaft system as shown below. k: Dynamic torsionapring constant of coupling [N m/rad] IA: Inertial moment of driving side[kg m 2 ] IB: Inertial moment of driven side [kg m 2 ] ervice Factor Operating coefficient by load character: K1 Load character onstant Fluctuations: light Fluctuations: Medium Fluctuations: Large TAR FLEX AL election Procedure 2: Use with no backlash To use AL-Y R type with no backlash, a torque that is sufficiently low with respect to the normal torque of the coupling must be used. For this reason, selection must be made to satisfy the following conditions. (AL-B type cannot be used with no backlash.) (1) alculate torque Ta applied to the coupling based on the motor output P and coupling operating rotation speed n. Ta [N m] = 955 P [kw] n [min 1 ] Operating coefficient by operating hours: K2 Hours/per day to 8 to 16 to 24 K orrected coefficient by starting/braking frequency: K3 Times/per hour to 1 to 3 to 6 to 12 to 24 Over 24 K orrected coefficient by ambient temperature: K4 Temp. [ ] 3 to +3 to +4 to +6 to +8 K The latest AD data can be downloaded from our website. AD The AD mark indicates that AD data is available by D-ROM. The AD file No. represents the file name in the D-ROM. 85

18 AL MODEL Design heck Items Table of general purpose motor specification and simplified selection Motor 5Hz: 3min -1 /6Hz: 36min -1 5Hz: 15min -1 /6Hz: 18min -1 5Hz: 1min -1 /6Hz: 12min -1 2-pole motor TAR FLEX 4-pole motor TAR FLEX 6-pole motor TAR FLEX Output [kw] Frequency [Hz] haft dia. [mm] Torque [N m] Nominal bore dia. haft dia. [mm] Torque [N m] Nominal bore dia. haft dia. [mm] Torque [N m] Nominal bore dia AL AL AL AL AL AL AL-3 14N AL-3 14N AL-4 19N AL-3 14N AL-3 14N AL-4 19N AL-4 19N AL-4 19N AL-55 24N AL-4 19N AL-4 19N AL-55 24N AL-55 24N AL-55 24N AL-55 28N AL-55 24N AL-55 24N AL-55 28N AL-55 24N AL-55 28N AL-65 28N AL-55 24N AL-55 28N AL-65 28N AL-55 28N AL-65 28N AL-65 38N AL-55 28N 28 2 AL-65 28N 38 3 AL-65 38N AL-65 38N AL-65 38N AL-8 38N AL-65 38N 38 3 AL-65 38N AL-65 38N AL-65 38N AL-65 38N AL-8 42N AL-65 38N AL-65 38N 42 6 AL-8 42N AL-8 42N AL-8 42N AL-8-R 42N AL-8 42N AL-8 42N 42 9 AL-8 42N AL-8 42N AL-8 42N AL-95-R 48N AL-8 42N AL-8 42N AL-95 48N AL-8 42N AL-95 48N AL-95-R 55N AL-8 42N 48 1 AL-95 48N AL-95-R 55N AL-95 48N AL-95-R 48N AL-95-R 55N AL-95 48N AL-95 48N AL-95-R 55N AL-95 55N AL-95-R 55N N AL-95 55N AL-95-R 55N AL-15-R 6N AL-95 55N 6 24 AL-15-R 6N AL-95 55N 6 2 AL-15-R 6N AL-15 55N N AL-95 55N AL-15-R 6N * The table above shows the applicable sizes for the key/set screw type when typically used for a general purpose motor driving unit. It is not a selection for the no backlash specification. * The motor revolution and output torque are calculated values (reference values). TAR FLEX AL 86

19 Table of servo motor specification and simplified selection Rated output [kw] Rated rotation speed [min -1 ] ervo motor specification Rated torque [N m] Torque [N m] haft dia. [mm] ompatible coupling specification AL- -R bore dia. [mm] AL-2-R AL-2-R AL-3-R AL-3-R AL-55-R AL-55-R AL-55-R AL-4-R AL-55-R AL-55-R AL-55-R AL-65-R AL-55-R AL-55-R AL-65-R AL-55-R AL-65-R AL-65-R AL-55-R AL-65-R AL-55-R AL-65-R 35 * The table above shows simplified settings depending on the clamp type based on the supported servo motor shaft diameter and permissible torque transmission of the coupling. Use with no backlash is not guaranteed. TAR FLEX AL The latest AD data can be downloaded from our website. AD The AD mark indicates that AD data is available by D-ROM. The AD file No. represents the file name in the D-ROM. 87

20 afety Precautions (Please read prior to use) Please read carefully through the instruction manual and the technical information for proper use and safety. In this manual, safety precautions are classified by "DANGER" and "AUTION". DANGER When death or serious injury may result by mishandling 2. Mounting precautions DANGER Tighten bolts or screws completely. Depending on the tightening adjustment of bolt or screw, exceptionally dangerous situations such as product damage or performance degradation could occur. Always use a calibrated torque wrench and clamp at the tightening torque specified by Miki Pulley. AUTION When disability or only physical damage may result by mishandling DANGER Do not turn on the power of the equipment. Equipment use (atomic energy, aerospace, medical treatment,transportation, or various safety devices) that may result in serious bodily injury or loss of life directly by mechanical failure or mishandling, careful examination is necessary. ontact us for further information. The company has taken all possible measures to produce a quality product; however, continuous rotationatates when the clutch can not be disengaged or coasting of the machine when the brakes went off is envisioned as emergency. Please pay attention to safety measures in case anything goes wrong. 1. tructural precautions DANGER Use a safety cover. Touching the product during operation could cause injury. Place a safety cover to avoid any accident. Additionally, set up a safety mechanism for quick stop of the product when opening the cover. AUTION It is very dangerous if the driving part starts by accident while mounting the product. Be sure that the main power of the equipment is turned off. Use the product within the specified maximum permissible misalignment. The installation of the product must be performed within the specified maximum permissible error. Using the product with more than the maximum permissible error could cause damage or adverse effect on the equipment. AUTION Do not use any unspecified bolt or screw. DANGER Do not use the product in the presence of fire and explosive hazards. Using a bolt or screw that is not specified by our company could damage the product. Do not use any bolt or screw unspecified. Do not use the product near flammable liquids or in the presence of gas and other explosive air particles. AUTION Wear protective equipment. DANGER et up a safety mechanism To avoid any injury by stripping, spring pin or keyway, make sure to wear protective equipment such as safety glasses or gloves. afety Precautions The driven and driving sides could be completely detached when the product is damaged. et up a safety mechanism such as a safety brake to avoid any danger. AUTION arry and mount the product by using a hoist. Lifting of a heavy weight could cause back injury. Use a hoist when carrying or mounting the product. 96

21 3. autions during operation DANGER Do not exceed the permissible rated speed If the product is used in excess of more than its maximum rated permissible speed, very dangerous product damage could occur by a large vibration. AUTION Make sure to operate the product within the specified maximum permissible misalignment. Using the product with more than the "maximum permissible misalignment" could cause damage or adverse effect on the equipment. Always operate the product within the specified "maximum permissible misalignment." DANGER Do not touch the product during operation. Due to the exposed rotor, touching the product during operation may cause injury. Make sure not to touch the product during operation. 4. autions for maintenance and inspection DANGER Do not turn on the power of the equipment. It is extremely dangerous if the driving part starts operating by accident while dismounting the product. Make sure that the main power of the equipment is off. AUTION AUTION AUTION Do not use the product with more than the specified permissible transmission torque. Using the product with more than the specified permissible transmissing torque could cause damage or adverse effect on the equipment. When abnormal noises or vibrations occur, stop operation immediately. If abnormal noises or vibrations occur during operation, improper mounting should be considered. Do not leave the situation as it is. It may cause damage to the equipment itself. Also, for reasons other than above, the belts and other screws may loosen or become defective even if the product is mounted correctly. Do not use the product in an environment that could cause harmful effects. Do not use the product in an environment where chemicals may spill, humidity is high, or in hot or cold temperature. DANGER Do not dismantle the product. 5. autions for disposal DANGER AUTION We will refuse to take responsibility as to the damaged product that is dismantled, remodeled or repaired by a third party except our company and the designated company. Therefore, for the product that the assembly process or procedure of dismantlement is described in the manual, we will not be responsible as well. Please use our service network for repair and dismantlement. Do not leave the product around where young children may play. all for a waste-control-collection company for disposal. Please note that this safety precautions and specification described in each manual may be changed without prior notice. ontact Miki Pulley for additional information or questions on these precautions. AUTION Do not use the product when the locing part is in a slip condition. afety Precautions Using the product when the locking part is in a slip condition could over heat the product, which could cause damage to the equipment. 97

22 Technical Data Miki Pulley ouplings tandard Bore Processing pecification This standard bore processing specification is applicable to bore processing for ERVO FLEX (except F model), PR FLEX, BAUMANN FLEX (except ZG and LM models), and ENTA FLEX of bore diameter 6mm to 65mm. However, other standard bore processing specifications set to each model respectively will have precedence if they exist, and may differ from this specification. Bore Processing Tolerances for Mating haft Tolerances Unless there is a special order, it is processed by H7. For bore processing below 1mm, it will be H8. Tolerances other than H7 require consultation. When pilot bores are additionally processed, the surface treatment of the processed portion is shaved. If an additionaurface treatment after bore processing is required, contact us. haft tolerance Recommended bore tolerance h6 to h9 H7 j6 G7 k6 F7 m6 F7 * The j6, k6 and m6 are adopted as new standard motor shafts. Nominal et crew Diameters for Keyway Keyway Basic dimension b2 et screw nominal diameter 4 M4 5 M4 6 M5 7 M6 8 M6 1 M8 12 M8 14 M1 15 M1 16 M1 18 M1 * If this is not a special order, the positions of set screws will be 2 points, 9 apart from each other. * The positions for set screws may vary for some products. For more information, see the standard bore processing specification for each product. 9 2-M Keyway Dimensions for Bore Diameters (following table) Unless there is a special order, it is processed by the former JI (second class). For bore diameters under 12mm, keyways are not processed. Nominal et crew Diameters for Bore Diameters (without keyway) Previous edition JI (lass 2) compliance Bore dia. Basic dimension b2 Tolerance (E9) t2 Basic Tolerance dimension Unit [mm] Keyway dimension b h 12 or more, 13 or less Over 13, 2 or less Over 2, 3 or less Over 3, 4 or less Over 4, 5 or less Over 5, 6 or less Over 6, 65 or less Bore dia. et screw nominal diameter 6 or more, less than 12 M4 * If this is not a special order, the positions of set screws will be 2 points, 9 apart from each other. * The positions for set screws may vary for some products. For more information, see the standard bore processing specification for each product. 9 2-M New JI compliance Unit [mm] Technical data Bore dia. Basic dimension 12 4 b2 Tolerance (H9) Basic dimension t2 Tolerance Keyway dimension b h Over 12, 17 or less Over 17, 22 or less Over 22, 3 or less Over 3, 38 or less Over 38, 44 or less Over 44, 5 or less Over 5, 58 or less Over 58, 65 or less

23 Technical Data Dimensions and Tolerances of Parallel Keys and Keyways b1 b2 t1 r1 t2 r2 b d h c or r d JI (Excerpts from JI B ) ross section of shaft ross section of bore ross section of key Unit [mm] Nominal key dimension b h Applicable shaft diameter d b Basic Tolerance dimension (h9) Key dimension Basic dimension h Tolerance c or r Keyway dimension Basic Locking type Normal type r1 dimension of b1 Tolerance of b1 Tolerance b1 Tolerance and and b2 b1 and b2 (P9) (N9) (Js9) r ± to ± to ± to ± t1 t2 Basic dimension Tolerance Basic dimension Tolerance to to to h to to to to to to to to to to to h to to ± to to to to to ± Previous JI First lass (Excerpts from JI B ) Unit [mm] Nominal Applicable Key dimension Keyway dimension key shaft b h Basic b1 b2 r1 t1 t2 dimension diameter dimension of b1 Basic Tolerance Basic Tolerance c or r b h d Tolerance Tolerance and Basic Basic dimension (p7) dimension (h9) and b2 (H8) (F7) r2 Tolerance Tolerance dimension dimension or more, 13 or less Over 13, 2 or less Over 2, 3 or less Over 3, 4 or less Over 4, 5 or less Over 5, 6 or less Over 6, 7 or less Over 7, 8 or less Over 8, 95 or less Over 95, 11 or less Over 11, 125 or less Previous JI econd lass (Excerpts from JI B ) Unit [mm] Nominal Applicable Key dimension Keyway dimension key shaft b h c Basic b1 b2 r1 t1 t2 dimension diameter dimension of b1 Basic Tolerance Basic Tolerance or b h d Tolerance Tolerance and Basic Basic dimension (h8) dimension (h1) r and b2 (H9) (E) r2 Tolerance Tolerance dimension dimension or more, 13 or less Over 13, 2 or less Over 2, 3 or less Over 3, 4 or less Over 4, 5 or less Over 5, 6 or less Over 6, 7 or less Over 7, 8 or less Over 8, 95 or less Over 95, 11 or less Over 11, 125 or less Technical data 99

24 Technical Data Permissible Dimensional Deviation of hafts (Excerpts from JI B 41) Measurement lassification [mm] d e f g h js j k m n p r Beyond Below d8 d9 e7 e8 e9 f6 f7 f8 g5 g6 h5 h6 h7 h8 h9 js5 js6 js7 j5 j6 k5 k6 m5 m6 n6 p6 r * The upper value in each column indicates the upper deviation, and the lower value in each column indicates the lower deviation ± 2.5 ± 4 ± 6 ± 3 ± 4.5 ± 7.5 ± 4 ± 5.5 ± 9 ± 4.5 ± 6.5 ± 1.5 ± 5.5 ± 8 ± 12.5 ± 6.5 ± 9.5 ± 15 ± 7.5 ± 11.5 ± 17.5 ± 9 ± 12.5 ± 2 ± 1 ± 14.5 ± 23 ± 11.5 ± 16 ± 26 ± 12.5 ± 18 ± 28.5 ± 13.5 ± 2 ± ± 16 ± 18 ± Unit [μm] Technical data 1

25 Technical Data Permissible Dimensional Deviation of Bores (Excerpts from JI B 41) Measurement lassification [mm] E F G H Js J K M N P R Beyond Below E7 E8 E9 F6 F7 F8 G6 G7 H5 H6 H7 H8 H9 H1 Js6 Js7 J6 J7 K6 K7 M6 M7 N6 N7 P7 R ± 4 ± 6 * The upper value in each column indicates the upper deviation, and the lower value in each column indicates the lower deviation ± 4.5 ± ± 5.5 ± ± 6.5 ± ± 8 ± ± 9.5 ± 15 ± 11 ± 17.5 ± 12.5 ± 2 ± 14.5 ± 23 ± 16 ± 26 ± 18 ± 28.5 ± 2 ± ± Unit [μm] Technical data 11