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สินค้า/บริการ >> ข้อต่อเพลา >> Star Flex ( Jaw Coupling )

Star Flex ( Jaw Coupling ) - คลิกที่นี่เพื่อดูรูปภาพใหญ่
Star Flex ( Jaw Coupling )






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Star Flex ( Jaw Coupling )

รหัสสินค้า: 000106
Please contact
รุ่น: ALS, ALY, ALB
ยี่ห้อ: Star Flex
รายละเอียด:

STAR FLEX Coupling (Jaw coupling)

Starflex ออกแบบด้วยโครงสร้างง่ายๆ ประกอบด้วย ขั้ว2ข้าง และยางสังเคราะห์หนึ่งอันอยู่ ตรงกลาง ยางสังเคราะห์แบ่งออกเป็น 2 ชนิด ซึ่งแตกต่างกันที่ความแข็งหรือความยืดหยุ่น โดยให้เลือกตามปริมาณการเยื้องศูนย์และค่าแรงบิดที่ต้องใช้

คุณลักษณะ

  • วัสดุที่ใช้ทำยางสังเคราะห์นี้ คือ Polyurethane Elastomer ซึ่งสามารถต้านทานแรงบิดได้มากถึง2เท่าของJaw Coupling รุ่นปัจจุบัน
  • ไม่มีBacklashเพราะออกแบบให้ยางสังเคราะห์และขั้วได้รับการอัดแรงดันไว้ ล่วงหน้า (Pre-pressured)
  • ขั้วนั้นทำมาจาก Alunium alloy ซึ่งแบ่งการยึดติดเข้ากับแกนออกเป็น 2 ชนิดด้วยกัน คือ แบบ clump และ แบบ key Starflex
  • ผ่านการรับรองเกี่ยวกับการักษา สภาพแวดล้อม โดยได้รับเครื่องหมายRoHSแล้ว

 

STARFLEX

Product model

  • ALS R Type |
  • ALS Y Type |
  • ALS B Type

 

The simple construction of these couplings sandwiches a buffer piece called an element (made of polyurethane elastomer) between two hubs. Elements of two different hardnesses are available so you can select the appropriate one for your torque transmission responsiveness and amount of misalignment. Since the design pre-compresses the element, it can also be used without backlash.

 

ALS R Type

 

ALS R Type

 

Features of ALS R Type

Uses an element (polyurethane elastomer) with a hardness of 97 JIS A and a tight-fit construction designed for a pre-compressed shape, so the coupling can be used without backlash.It can be used at high torque and a wide range of motors, from simple servos to general-purpose motors.

Optimal design thanks to 3D-CAD and FEM analysis

The latest CAE system was used from the initial stages of design. These models were designed using 3D-CAD. Shape and hardness was designed using the support of the latest finite element method (FEM) analysis software for optimal designs.

Optimal design of element shape achieves high transmission torque, reduces mounting error reaction force

They achieve more than double the transmission torque of older jaw couplings for the same outer diameter thanks to improved torque transmission component shapes and rigorous selection of materials.Couplings that have no backlash (ALS Y and R type) and are gentle on the partner shaft have been achieved by installing an undercut on the inner diameter side and reducing the mounting error reaction force.

Can be freely combined

Select from among three types of hubs: pilot-bore types that can be freely drilled with bores, key/set screw types, and clamp types.Key/set screw types and clamp types can also be combined.

 

ALS R Type Specifications

ALS R Types (key/set screw type)

[Specifications]

 
Model Torque Misalignment Max. rotation speed [min-1 Static torsional stiffness [N・m/rad] Radial stiffness [N/mm] Moment of inertia [kg・m2 Mass [kg]
Nominal [N・m] Max. [N・m] Parallel [mm] Angular [°] Axial [mm]
ALS-014-R 2 4 0.10 1 0 to +0.6 34100 21 380 1.91×10-7 0.007
ALS-020-R 5 10 0.10 1 0 to +0.8 23800 43 400 1.08×10-6 0.018
ALS-030-R 12.5 25 0.10 1 0 to +1.0 15900 136 650 6.25×10-6 0.047
ALS-040-R 17 34 0.10 1 0 to +1.2 11900 1550 1700 3.87×10-5 0.15
ALS-055-R 60 120 0.10 1 0 to +1.4 8700 2000 1350 1.66×10-4 0.35
ALS-065-R 160 320 0.10 1 0 to +1.5 7400 3100 1400 3.57×10-4 0.51
ALS-080-R 325 650 0.10 1 0 to +1.8 6000 6000 1710 1.06×10-3 1.01
ALS-095-R 450 900 0.10 1 -0.5 to +2.0 5000 10000 4200 2.24×10-3 1.50
ALS-105-R 525 1050 0.15 1 -0.9 to +2.0 4500 12000 5000 3.72×10-3 2.05

*Axial displacement of the ALS-014-R to ALS-080-R is not allowed in the negative direction.

*Max. rotation speed does not take into account dynamic balance.

*Stiffness values given are from measurements taken at 20℃.

*The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

 

Unit [mm]
Model d1, d2 D L L1, L2 E S C
Pilot bore Min. Max.
ALS-014-R 3 3 6.5 14 22 7 8 1 3.5
ALS-020-R 4 4 9.6 20 30 10 10 1 5
ALS-030-R 5 6 14 30 35 11 13 1.5 5.5
ALS-040-R 5 8 22 40 66 25 16 2 12.5
ALS-055-R 5 10 28 55 78 30 18 2 15
ALS-065-R 5 14 38 65 90 35 20 2.5 17.5
ALS-080-R 10 19 45 80 114 45 24 3 22.5
ALS-095-R 8 19 55 95 126 50 26 3 25
ALS-105-R 10 19 60 105 140 56 28 3.5 28

*"Pilot bore" refers to center processing.

[Standard bore diameter]

Unit [mm]
Model Standard bore diameter d1, d2 [mm]
3 4 5 6 6.35 8 9 9.525 10 11 12 14 15 16 18 19 20 24 25 28 30 32 35 38 40 42 45 50 55 60
ALS-014-R                                                  
ALS-020-R                                                
ALS-030-R                                              
ALS-040-R                                            
ALS-055-R                                            
ALS-065-R                                              
ALS-080-R                                              
ALS-095-R                                                
ALS-105-R                                              

*The bore diameters marked with ● are supported as standard bore diameter.

*ø11 and below have no keyway; ø12 and above can be processed for old JIS standards, new JIS standards, and new standard motors.

*The only standard processing of bore diameters of the ALS-095 and ALS-105 are for new JIS standards and new standard motors.

ALS R Types (clamp types)

[Specifications]

Unit [mm]
Model Misalignment Max. rotation speed [min-1 Static torsional stiffness [N・m/rad] Radial stiffness [N/mm] Moment of inertia [kg・m2 Mass [kg]
Parallel [mm] Angular [°] Axial [mm]
ALS-014-R 0.1 1 0 to +0.6 10000 21 380 1.98×10-7 0.007
ALS-020-R 0.1 1 0 to +0.8 10000 43 400 1.09×10-6 0.019
ALS-030-R 0.1 1 0 to +1.0 10000 136 650 6.19×10-6 0.045
ALS-040-R 0.1 1 0 to +1.2 10000 1550 1700 4.01×10-5 0.16
ALS-055-R 0.1 1 0 to +1.4 7000 2000 1350 1.63×10-4 0.34
ALS-065-R 0.1 1 0 to +1.5 5900 3100 1400 3.69×10-4 0.54
ALS-080-R 0.1 1 0 to +1.8 4800 6000 1710 1.04×10-3 1.00

*Axial displacement is not allowed in the negative direction.

*Max. rotation speed does not take into account dynamic balance.

*Stiffness values given are from measurements taken at 20℃.

*The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

 

Unit [mm]
Model d1, d2 D DB L L1, L2 E S B G M Tightening torque [N・m]
Min. Max.
ALS-014-R 3 6 14 16.1 22 7 8 1 3.5 4.8 1-M2 0.4
ALS-020-R 4 8 20 20 30 10 10 1 5 6.5 1-M2.5 1
ALS-030-R 6 14 30 30 35 11 13 1.5 5.5 10.5 1-M3 1.5
ALS-040-R 8 20 40 43.2 66 25 16 2 12.5 15 1-M5 7
ALS-055-R 10 28 55 55 78 30 18 2 10.5 20 1-M6 14
ALS-065-R 14 35 65 69.8 90 35 20 2.5 11.5 24.5 1-M8 30
ALS-080-R 19 45 80 80 114 45 24 3 11.5 30 1-M8 30

*The øDB value is measured assuming that the head of the clamping bolt is larger than the external diameter of the hub.

*The nominal diameter for the clamping bolt M is equal to the quantity minus the nominal diameter of the screw threads, where the quantity is for a hub on one side.

Standard bore diameter and allowable transmission torque

 
Model Standard bore diameters d1, d2 [mm] and rated transmission torque [N・m]
3 4 5 6 6.35 7 8 10 11 12 14 15 16 18 19 20 22 24 25 28 30 35 42
ALS-014-R 0.31 0.42 0.54 0.65                                      
ALS-020-R   1.2 1.6 2.1 2.2 2.6 3.0                                
ALS-030-R       2.0 2.2   3.4 4.7 5.4 6.0 7.4                        
ALS-040-R             8 16   23 31 34 34   34                
ALS-055-R                       38 41 48 51 54 61 67 71 80      
ALS-065-R                               61 68 75 79 89 96 114  
ALS-080-R                                       108 121 151 194

*Bore diameters whose fields contain numbers are supported as the standard bore diameters.

*Bore diameters 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 [N·m].

*The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft diameter of ø35, the tolerance is -0.025 to +0.010.

*Bore diameters between the minimum and maximums shown in the dimensions table are compatible, but bore diameters other than those shown in the above table require other arrangements. Contact Miki Pulley for details.

[Element]

 

Unit [mm]
Model F R1 R2 K A
ALS-014-R-EL 6.2 3.5 -- 2.5 1.2
ALS-020-R-EL 8.2 6.2 -- 3.4 1.4
ALS-030-R-EL 10.2 8.5 -- 4 2.2
ALS-040-R-EL 12 18 -- 4.5 3
ALS-055-R-EL 14 24 -- 5.5 3
ALS-065-R-EL 15 30 -- 5.5 4
ALS-080-R-EL 18 37 15 7 4
ALS-095-R-EL 20 43 20 8 4
ALS-105-R-EL 21 50 20 8.5 4

[Standard Hole-drilling Standards]

 

Unit [mm]
Models compliant with the old JIS standards (Class 2) Models compliant with the new JIS standards Models compliant with the new motor standards
Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M)
Tolerance H7, H8 E9 +0.30 - Tolerance H7 H9 +0.30 - Tolerance G7, F7 H9 +0.30 -
3 3+0.0180 - - 1-M3 -- -- -- -- -- -- -- -- -- --
4 4+0.0180 - - 2-M3 -- -- -- -- -- -- -- -- -- --
5 5+0.0180 - - 2-M3 -- -- -- -- -- -- -- -- -- --
6 6+0.0180 - - 2-M4 -- -- -- -- -- -- -- -- -- --
6.35 6.35+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
7 7+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
8 8+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
9 9+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
9.525 9.525+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
10 10+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
11 11+0.0180 - - 2-M4 -- -- -- -- -- -- -- -- -- --
12 12+0.0180 4+0.050+0.020 13.5 2-M4 12H 12+0.0180 4+0.0300 13.8 2-M4 -- -- -- -- --
14 14+0.0180 5+0.050+0.020 16.0 2-M4 14H 14+0.0180 5+0.0300 16.3 2-M4 14N 14+0.024+0.006 5+0.0300 16.3 2-M4
15 15+0.0180 5+0.050+0.020 17.0 2-M4 15H 15+0.0180 5+0.0300 17.3 2-M4 -- -- -- -- --
16 16+0.0180 5+0.050+0.020 18.0 2-M4 16H 16+0.0180 5+0.0300 18.3 2-M4 -- -- -- -- --
17 17+0.0180 5+0.050+0.020 19.0 2-M4 17H 17+0.0180 5+0.0300 19.3 2-M4 -- -- -- -- --
18 18+0.0180 5+0.050+0.020 20.0 2-M4 18H 18+0.0180 6+0.0300 20.8 2-M5 -- -- -- -- --
19 19+0.0210 5+0.050+0.020 21.0 2-M4 19H 19+0.0210 6+0.0300 21.8 2-M5 19N 19+0.028+0.007 6+0.0300 21.8 2-M5
20 20+0.0210 5+0.050+0.020 22.0 2-M4 20H 20+0.0210 6+0.0300 22.8 2-M5 -- -- -- -- --
22 22+0.0210 7+0.061+0.025 25.0 2-M6 22H 22+0.0210 6+0.0300 24.8 2-M5 -- -- -- -- --
24 24+0.0210 7+0.061+0.025 27.0 2-M6 24H 24+0.0210 8+0.0360 27.3 2-M6 24N 24+0.028+0.007 8+0.0360 27.3 2-M6
25 25+0.0210 7+0.061+0.025 28.0 2-M6 25H 25+0.0210 8+0.0360 28.3 2-M6 -- -- -- -- --
28 28+0.0210 7+0.061+0.025 31.0 2-M6 28H 28+0.0210 8+0.0360 31.3 2-M6 28N 28+0.028+0.007 8+0.0360 31.3 2-M6
30 30+0.0210 7+0.061+0.025 33.0 2-M6 30H 30+0.0210 8+0.0360 33.3 2-M6 -- -- -- -- --
32 32+0.0250 10+0.061+0.025 35.5 2-M8 32H 32+0.0250 10+0.0360 35.3 2-M8 -- -- -- -- --
35 35+0.0250 10+0.061+0.025 38.5 2-M8 35H 35+0.0250 10+0.0360 38.3 2-M8 -- -- -- -- --
38 38+0.0250 10+0.061+0.025 41.5 2-M8 38H 38+0.0250 10+0.0360 41.3 2-M8 38N 38+0.050+0.025 10+0.0360 41.3 2-M8
40 40+0.0250 10+0.061+0.025 43.5 2-M8 40H 40+0.0250 12+0.0430 43.3 2-M8 -- -- -- -- --
42 42+0.0250 12+0.075+0.032 45.5 2-M8 42H 42+0.0250 12+0.0430 45.3 2-M8 42N 42+0.050+0.025 12+0.0430 45.3 2-M8
45 45+0.0250 12+0.075+0.032 48.5 2-M8 45H 45+0.0250 14+0.0430 48.8 2-M10 -- -- -- -- --
48 48+0.0250 12+0.075+0.032 51.5 2-M8 48H 48+0.0250 14+0.0430 51.8 2-M10 48N 48+0.050+0.025 14+0.0430 51.8 2-M10
50 50+0.0250 12+0.075+0.032 53.5 2-M8 50H 50+0.0250 14+0.0430 53.8 2-M10 -- -- -- -- --
55 55+0.0300 15+0.075+0.032 60.0 2-M10 55H 55+0.0300 16+0.0430 59.3 2-M10 55N 55+0.060+0.030 16+0.0430 59.3 2-M10
56 56+0.0300 15+0.075+0.032 61.0 2-M10 56H 56+0.0300 16+0.0430 60.3 2-M10 -- -- -- -- --
60 60+0.0300 15+0.075+0.032 65.0 2-M10 60H 60+0.0300 18+0.0430 64.4 2-M10 60N 60+0.060+0.030 18+0.0430 64.4 2-M10

*Tolerance will be h8 class for hole diameter equal to or less than ø10 mm.

*The set screw size is M3 for ALS-014.

[Distance from set screw edge]

 
Model ALS-014 ALS-020 ALS-030 ALS-040 ALS-055 ALS-065 ALS-080 ALS-095 ALS-105
Distance from set screw edge C [mm] 3.5 5 5.5 12.5 15 17.5 22.5 25 28

 

Structure and Materials

Pilot Bore

Pilot Bore

Key/Set Screw Type

Key/Set Screw Type

 

Clamp Type

Clamp Type

 

ALS Y Type

 

ALS Y Type

 

Features of ALS Y Type

Uses an element (polyurethane elastomer) with a hardness of 90 JIS A and a tight-fit construction designed for a pre-compressed shape, so the coupling can be used without backlash.Elements are less hard than the ALS-R type, so shaft reaction force can be kept down.

Optimal design thanks to 3D-CAD and FEM analysis

The latest CAE system was used from the initial stages of design. These models were designed using 3D-CAD. Shape and hardness was designed using the support of the latest finite element method (FEM) analysis software for optimal designs.

High transmission torque achieved and mounting error reaction force reduced by optimal design of element shape

They achieve more than double the transmission torque of older jaw couplings for the same outer diameter thanks to improved torque transmission component shapes and rigorous selection of materials.Couplings that have no backlash (ALS Y and R type) and are gentle on the partner shaft have been achieved by installing an undercut on the inner diameter side and reducing the mounting error reaction force.

Can be freely combined

Select from among three types of hubs: pilot-bore types that can be freely drilled with bores, key/set screw types, and clamp types.Key/set screw types and clamp types can also be combined.

ALS Y Type Specifications

ALS Y Types (key/set screw type)

[Specifications]

 
Model Torque Misalignment Max. rotation speed [min-1 Static torsional stiffness [N・m/rad] Radial stiffness [N/mm] Moment of inertia [kg・m2 Mass [kg]
Nominal [N・m] Max. [N・m] Parallel [mm] Angular [°] Axial [mm]
ALS-014-Y 1.2 2.4 0.10 1 0 to +0.6 34100 12 200 1.91×10-7 0.007
ALS-020-Y 3 6 0.15 1 0 to +0.8 23800 24 210 1.08×10-6 0.018
ALS-030-Y 7.5 15 0.15 1 0 to +1.0 15900 73 330 6.25×10-6 0.047
ALS-040-Y 10 20 0.10 1 0 to +1.2 11900 760 940 3.87×10-5 0.15
ALS-055-Y 35 70 0.15 1 0 to +1.4 8700 1400 1160 1.66×10-4 0.35
ALS-065-Y 95 190 0.15 1 0 to +1.5 7400 2100 1200 3.57×10-4 0.51
ALS-080-Y 190 380 0.15 1 0 to +1.8 6000 4000 1430 1.06×10-3 1.01
ALS-095-Y 265 530 0.15 1 -0.5 to +2.0 5000 6000 2400 2.24×10-3 1.50
ALS-105-Y 310 620 0.20 1 -0.9 to +2.0 4500 7000 4000 3.72×10-3 2.05

*Axial displacement of the ALS-014-Y to ALS-080-Y is not allowed in the negative direction.

*Max. rotation speed does not take into account dynamic balance.

*Stiffness values given are from measurements taken at 20℃.

*The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

 

Unit [mm]
Model d1, d2 d1, d4 D L L1, L2 E S C
Pilot bore Min. Max.
ALS-014-Y 3 3 6.5 14 22 7 8 1 3.5
ALS-020-Y 4 4 9.6 20 30 10 10 1 5
ALS-030-Y 5 6 14 30 35 11 13 1.5 5.5
ALS-040-Y 5 8 22 40 66 25 16 2 12.5
ALS-055-Y 5 10 28 55 78 30 18 2 15
ALS-065-Y 5 14 38 65 90 35 20 2.5 17.5
ALS-080-Y 10 19 45 80 114 45 24 3 22.5
ALS-095-Y 8 19 55 95 126 50 26 3 25
ALS-105-Y 10 19 60 105 140 56 28 3.5 28

*"Pilot bore" refers to center processing.

[Standard bore diameter]

 
Model Standard bore diameter d1, d2 [mm]
3 4 5 6 6.35 8 9 9.525 10 11 12 14 15 16 18 19 20 24 25 28 30 32 35 38 40 42 45 50 55 60
ALS-014-Y                                                  
ALS-020-Y                                                
ALS-030-Y                                              
ALS-040-Y                                            
ALS-055-Y                                            
ALS-065-Y                                              
ALS-080-Y                                              
ALS-095-Y                                                
ALS-105-Y                                              

*The bore diameters marked with ● are supported as standard bore diameter.

*ø11 and below have no keyway; ø12 and above can be processed for old JIS standards, new JIS standards, and new standard motors.

*The only standard processing of bore diameters of the ALS-095 and ALS-105 are for new JIS standards and new standard motors.

ALS Y Types (clamp types)

[Specifications]

 
Model Misalignment Max. rotation speed [min-1 Static torsional stiffness [N・m/rad] Radial stiffness [N/mm] Moment of inertia [kg・m2 Mass [kg]
Parallel [mm] Angular [°] Axial [mm]
ALS-014-Y 0.10 1 0 to +0.6 10000 12 200 1.98×10-7 0.007
ALS-020-Y 0.15 1 0 to +0.8 10000 24 210 1.09×10-6 0.019
ALS-030-Y 0.15 1 0 to +1.0 10000 73 330 6.19×10-6 0.045
ALS-040-Y 0.10 1 0 to +1.2 10000 760 940 4.01×10-5 0.16
ALS-055-Y 0.15 1 0 to +1.4 7000 1400 1160 1.63×10-4 0.34
ALS-065-Y 0.15 1 0 to +1.5 5900 2100 1200 3.69×10-4 0.54
ALS-080-Y 0.15 1 0 to +1.8 4800 4000 1430 1.04×10-3 1.00

*Axial displacement is not allowed in the negative direction.

*Max. rotation speed does not take into account dynamic balance.

*Stiffness values given are from measurements taken at 20℃.

*The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

 

Unit [mm]
Model d1, d2 D DB L L1, L2 E S B G M Tightening torque [N・m]
Min. Max.
ALS-014-Y 3 6 14 16.1 22 7 8 1 3.5 4.8 1-M2 0.4
ALS-020-Y 4 8 20 20 30 10 10 1 5 6.5 1-M2.5 1
ALS-030-Y 6 14 30 30 35 11 13 1.5 5.5 10.5 1-M3 1.5
ALS-040-Y 8 20 40 43.2 66 25 16 2 12.5 15 1-M5 7
ALS-055-Y 10 28 55 55 78 30 18 2 10.5 20 1-M6 14
ALS-065-Y 14 35 65 69.8 90 35 20 2.5 11.5 24.5 1-M8 30
ALS-080-Y 19 45 80 80 114 45 24 3 11.5 30 1-M8 30

*The øDB value is measured assuming that the head of the clamping bolt is larger than the external diameter of the hub.

*The nominal diameter for the clamping bolt M is equal to the quantity minus the nominal diameter of the screw threads, where the quantity is for a hub on one side.

Standard bore diameter and allowable transmission torque

 
Model Standard bore diameters d1, d2 [mm] and rated transmission torque [N・m]
3 4 5 6 6.35 7 8 10 11 12 14 15 16 18 19 20 22 24 25 28 30 35 42
ALS-014-Y 0.31 0.42 0.54 0.65                                      
ALS-020-Y   1.2 1.6 2.1 2.2 2.6 3.0                                
ALS-030-Y       2.0 2.2   3.4 4.7 5.4 6.0 7.4                        
ALS-040-Y             8 16   20 20 20 20   20                
ALS-055-Y                       38 41 48 51 54 61 67 70 70      
ALS-065-Y                               61 68 75 79 89 96 114  
ALS-080-Y                                       108 121 151 194

*Bore diameters whose fields contain numbers are supported as the standard bore diameters.

*Bore diameters 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 [N·m].

*The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft diameter of ø35, the tolerance is -0.025 to +0.010.

*Bore diameters between the minimum and maximums shown in the dimensions table are compatible, but bore diameters other than those shown in the above table require other arrangements. Contact Miki Pulley for details.

[Element]

 

Unit [mm]
Model F R1 R2 K A
ALS-014-Y-EL 6.2 3.5 -- 2.5 1.2
ALS-020-Y-EL 8.2 6.2 -- 3.4 1.4
ALS-030-Y-EL 10.2 8.5 -- 4 2.2
ALS-040-Y-EL 12 18 -- 4.5 3
ALS-055-Y-EL 14 24 -- 5.5 3
ALS-065-Y-EL 15 30 -- 5.5 4
ALS-080-Y-EL 18 37 15 7 4
ALS-095-Y-EL 20 43 20 8 4
ALS-105-Y-EL 21 50 20 8.5 4

[Standard Hole-drilling Standards]

 

Unit [mm]
Models compliant with the old JIS standards (Class 2) Models compliant with the new JIS standards Models compliant with the new motor standards
Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M)
Tolerance H7, H8 E9 +0.30 - Tolerance H7 H9 +0.30 - Tolerance G7, F7 H9 +0.30 -
3 3+0.0180 - - 1-M3 -- -- -- -- -- -- -- -- -- --
4 4+0.0180 - - 2-M3 -- -- -- -- -- -- -- -- -- --
5 5+0.0180 - - 2-M3 -- -- -- -- -- -- -- -- -- --
6 6+0.0180 - - 2-M4 -- -- -- -- -- -- -- -- -- --
6.35 6.35+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
7 7+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
8 8+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
9 9+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
9.525 9.525+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
10 10+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
11 11+0.0180 - - 2-M4 -- -- -- -- -- -- -- -- -- --
12 12+0.0180 4+0.050+0.020 13.5 2-M4 12H 12+0.0180 4+0.0300 13.8 2-M4 -- -- -- -- --
14 14+0.0180 5+0.050+0.020 16.0 2-M4 14H 14+0.0180 5+0.0300 16.3 2-M4 14N 14+0.024+0.006 5+0.0300 16.3 2-M4
15 15+0.0180 5+0.050+0.020 17.0 2-M4 15H 15+0.0180 5+0.0300 17.3 2-M4 -- -- -- -- --
16 16+0.0180 5+0.050+0.020 18.0 2-M4 16H 16+0.0180 5+0.0300 18.3 2-M4 -- -- -- -- --
17 17+0.0180 5+0.050+0.020 19.0 2-M4 17H 17+0.0180 5+0.0300 19.3 2-M4 -- -- -- -- --
18 18+0.0180 5+0.050+0.020 20.0 2-M4 18H 18+0.0180 6+0.0300 20.8 2-M5 -- -- -- -- --
19 19+0.0210 5+0.050+0.020 21.0 2-M4 19H 19+0.0210 6+0.0300 21.8 2-M5 19N 19+0.028+0.007 6+0.0300 21.8 2-M5
20 20+0.0210 5+0.050+0.020 22.0 2-M4 20H 20+0.0210 6+0.0300 22.8 2-M5 -- -- -- -- --
22 22+0.0210 7+0.061+0.025 25.0 2-M6 22H 22+0.0210 6+0.0300 24.8 2-M5 -- -- -- -- --
24 24+0.0210 7+0.061+0.025 27.0 2-M6 24H 24+0.0210 8+0.0360 27.3 2-M6 24N 24+0.028+0.007 8+0.0360 27.3 2-M6
25 25+0.0210 7+0.061+0.025 28.0 2-M6 25H 25+0.0210 8+0.0360 28.3 2-M6 -- -- -- -- --
28 28+0.0210 7+0.061+0.025 31.0 2-M6 28H 28+0.0210 8+0.0360 31.3 2-M6 28N 28+0.028+0.007 8+0.0360 31.3 2-M6
30 30+0.0210 7+0.061+0.025 33.0 2-M6 30H 30+0.0210 8+0.0360 33.3 2-M6 -- -- -- -- --
32 32+0.0250 10+0.061+0.025 35.5 2-M8 32H 32+0.0250 10+0.0360 35.3 2-M8 -- -- -- -- --
35 35+0.0250 10+0.061+0.025 38.5 2-M8 35H 35+0.0250 10+0.0360 38.3 2-M8 -- -- -- -- --
38 38+0.0250 10+0.061+0.025 41.5 2-M8 38H 38+0.0250 10+0.0360 41.3 2-M8 38N 38+0.050+0.025 10+0.0360 41.3 2-M8
40 40+0.0250 10+0.061+0.025 43.5 2-M8 40H 40+0.0250 12+0.0430 43.3 2-M8 -- -- -- -- --
42 42+0.0250 12+0.075+0.032 45.5 2-M8 42H 42+0.0250 12+0.0430 45.3 2-M8 42N 42+0.050+0.025 12+0.0430 45.3 2-M8
45 45+0.0250 12+0.075+0.032 48.5 2-M8 45H 45+0.0250 14+0.0430 48.8 2-M10 -- -- -- -- --
48 48+0.0250 12+0.075+0.032 51.5 2-M8 48H 48+0.0250 14+0.0430 51.8 2-M10 48N 48+0.050+0.025 14+0.0430 51.8 2-M10
50 50+0.0250 12+0.075+0.032 53.5 2-M8 50H 50+0.0250 14+0.0430 53.8 2-M10 -- -- -- -- --
55 55+0.0300 15+0.075+0.032 60.0 2-M10 55H 55+0.0300 16+0.0430 59.3 2-M10 55N 55+0.060+0.030 16+0.0430 59.3 2-M10
56 56+0.0300 15+0.075+0.032 61.0 2-M10 56H 56+0.0300 16+0.0430 60.3 2-M10 -- -- -- -- --
60 60+0.0300 15+0.075+0.032 65.0 2-M10 60H 60+0.0300 18+0.0430 64.4 2-M10 60N 60+0.060+0.030 18+0.0430 64.4 2-M10

*Tolerance will be h8 class for hole diameter equal to or less than ø10 mm.

*The set screw size is M3 for ALS-014.

[Distance from set screw edge]

 
Model ALS-014 ALS-020 ALS-030 ALS-040 ALS-055 ALS-065 ALS-080 ALS-095 ALS-105
Distance from set screw edge C [mm] 3.5 5 5.5 12.5 15 17.5 22.5 25 28

 

Structure and Materials

Pilot Bore

Pilot Bore

 

Key/Set Screw Type

Key/Set Screw Type

 

Clamp Type

Clamp Type

 

ALS B Type

 

ALS B Type

 

 

Features of ALS B Type

Large misalignments can be absorbed at high transmission torques by using an element (polyurethane elastomer) with a hardness of 97 JIS A, a shape that has a loose-fit construction, and giving the torque transmission surface of the element a crowning shape.

Optimal design thanks to 3D-CAD and FEM analysis

The latest CAE system was used from the initial stages of design.These models were designed using 3D-CAD. Shape and hardness was designed using the support of the latest finite element method (FEM) analysis software for optimal designs.

High transmission torque achieved and mounting error reaction force reduced by optimal design of element shape

They achieve more than double the transmission torque of older jaw couplings for the same outer diameter thanks to improved torque transmission component shapes and rigorous selection of materials.

Can be freely combined

Select from among three types of hubs: pilot-bore types that can be freely drilled with bores, key/set screw types, and clamp types.Key/set screw types and clamp types can also be combined.

 

ALS B Type Specifications

ALS B Types (key/set screw type)

[Specifications]

 
Model Torque Misalignment Max. rotation speed [min-1 Static torsional stiffness [N・m/rad] Radial stiffness [N/mm] Moment of inertia [kg・m2 Mass [kg]
Nominal [N・m] Max. [N・m] Parallel [mm] Angular [°] Axial [mm]
ALS-030-B 12.5 25 0.17 1 -0.2 to +1.0 15900 90 460 6.13×10-6 0.045
ALS-040-B 17 34 0.20 1 -0.5 to +1.2 11900 400 640 3.86×10-5 0.15
ALS-055-B 60 120 0.22 1 -0.2 to +1.4 8700 1150 400 1.66×10-4 0.35
ALS-065-B 160 320 0.25 1 -0.6 to +1.5 7400 2000 800 3.57×10-4 0.51
ALS-080-B 325 650 0.28 1 -0.9 to +1.8 6000 4550 600 1.06×10-3 1.01
ALS-095-B 450 900 0.32 1 -0.5 to +2.0 5000 12000 800 2.22×10-3 1.48
ALS-105-B 525 1050 0.36 1 -0.9 to +2.0 4500 15000 2000 3.70×10-3 2.02

*Max. rotation speed does not take into account dynamic balance.

*Stiffness values given are from measurements taken at 20℃.

*The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

 

Unit [mm]
Model d1, d2 D L L1, L2 E S C
Pilot bore Min. Max.
ALS-030-B 5 6 14 30 35 11 13 1.5 5.5
ALS-040-B 5 8 22 40 66 25 16 2 12.5
ALS-055-B 5 10 28 55 78 30 18 2 15
ALS-065-B 5 14 38 65 90 35 20 2.5 17.5
ALS-080-B 10 19 45 80 114 45 24 3 22.5
ALS-095-B 8 19 55 95 126 50 26 3 25
ALS-105-B 10 19 60 105 140 56 28 3.5 28

*"Pilot bore" refers to center processing.

[Standard bore diameter]

 
Model Standard bore diameter d1, d2 [mm]
8 9 9.525 10 11 12 14 15 16 18 19 20 24 25 28 30 32 35 38 40 42 45 50 55 60
ALS-030-B                                    
ALS-040-B                                  
ALS-055-B                                  
ALS-065-B                                    
ALS-080-B                                    
ALS-095-B                                      
ALS-105-B                                    

*The bore diameters marked with ● are supported as standard bore diameter.

*ø11 and below have no keyway; ø12 and above can be processed for old JIS standards, new JIS standards, and new standard motors.

*The only standard processing of bore diameters of the ALS-095 and ALS-105 are for new JIS standards and new standard motors.

ALS B Types (clamp types)

[Specifications]

 
Model Misalignment Max. rotation speed [min-1 Static torsional stiffness [N・m/rad] Radial stiffness [N/mm] Moment of inertia [kg・m2 Mass [kg]
Parallel [mm] Angular [°] Axial [mm]
ALS-030-B 0.17 1 -0.2 to +1.0 10000 90 460 6.07×10-6 0.043
ALS-040-B 0.2 1 -0.5 to +1.2 10000 400 640 4.00×10-5 0.16
ALS-055-B 0.22 1 -0.2 to +1.4 7000 1,150 400 1.63×10-4 0.34
ALS-065-B 0.25 1 -0.6 to +1.5 5900 2,000 800 3.69×10-4 0.54
ALS-080-B 0.28 1 -0.9 to +1.8 4800 4,550 600 1.04×10-3 1.00

*Max. rotation speed does not take into account dynamic balance.

*Stiffness values given are from measurements taken at 20℃.

*The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

 

Unit [mm]
Model d1, d2 D DB L L1, L2 E S B G M Tightening torque [N・m]
Min. Max.
ALS-030-B 6 14 30 30 35 11 13 1.5 5.5 10.5 1-M3 1.5
ALS-040-B 8 20 40 43.2 66 25 16 2 12.5 15 1-M5 7
ALS-055-B 10 28 55 55 78 30 18 2 10.5 20 1-M6 14
ALS-065-B 14 35 65 69.8 90 35 20 2.5 11.5 24.5 1-M8 30
ALS-080-B 19 45 80 80 114 45 24 3 11.5 30 1-M8 30

*The øDB value is measured assuming that the head of the clamping bolt is larger than the external diameter of the hub.

*The nominal diameter for the clamping bolt M is equal to the quantity minus the nominal diameter of the screw threads, where the quantity is for a hub on one side.

Standard bore diameter and allowable transmission torque

 
Model Standard bore diameters d1, d2 [mm] and rated transmission torque [N・m]
6 6.35 8 10 11 12 14 15 16 18 19 20 22 24 25 28 30 35 42
ALS-030-B 2.0 2.2 3.4 4.7 5.4 6.0 7.4                        
ALS-040-B     8 16   23 31 34 34   34                
ALS-055-B               38 41 48 51 54 61 67 71 80      
ALS-065-B                       61 68 75 79 89 96 114  
ALS-080-B                               108 121 151 194

*Bore diameters whose fields contain numbers are supported as the standard bore diameters.

*Bore diameters 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 [N·m].

*The recommended processing tolerance for paired mounting shafts is the h7 class. However, for a shaft diameter of ø35, the tolerance is -0.025 to +0.010.

*Bore diameters between the minimum and maximums shown in the dimensions table are compatible, but bore diameters other than those shown in the above table require other arrangements. Contact Miki Pulley for details.

[Element]

 

Unit [mm]
Model F R3
ALS-030-B-EL 10.2 10.5
ALS-040-B-EL 12 18.5
ALS-055-B-EL 14 27.5
ALS-065-B-EL 15 32
ALS-080-B-EL 18 41
ALS-095-B-EL 20 47
ALS-105-B-EL 21 50

[Standard Hole-drilling Standards]

 

Unit [mm]
Models compliant with the old JIS standards (Class 2) Models compliant with the new JIS standards Models compliant with the new motor standards
Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M)
Tolerance H7, H8 E9 +0.30 - Tolerance H7 H9 +0.30 - Tolerance G7, F7 H9 +0.30 -
3 3+0.0180 - - 1-M3 -- -- -- -- -- -- -- -- -- --
4 4+0.0180 - - 2-M3 -- -- -- -- -- -- -- -- -- --
5 5+0.0180 - - 2-M3 -- -- -- -- -- -- -- -- -- --
6 6+0.0180 - - 2-M4 -- -- -- -- -- -- -- -- -- --
6.35 6.35+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
7 7+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
8 8+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
9 9+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
9.525 9.525+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
10 10+0.0220 - - 2-M4 -- -- -- -- -- -- -- -- -- --
11 11+0.0180 - - 2-M4 -- -- -- -- -- -- -- -- -- --
12 12+0.0180 4+0.050+0.020 13.5 2-M4 12H 12+0.0180 4+0.0300 13.8 2-M4 -- -- -- -- --
14 14+0.0180 5+0.050+0.020 16.0 2-M4 14H 14+0.0180 5+0.0300 16.3 2-M4 14N 14+0.024+0.006 5+0.0300 16.3 2-M4
15 15+0.0180 5+0.050+0.020 17.0 2-M4 15H 15+0.0180 5+0.0300 17.3 2-M4 -- -- -- -- --
16 16+0.0180 5+0.050+0.020 18.0 2-M4 16H 16+0.0180 5+0.0300 18.3 2-M4 -- -- -- -- --
17 17+0.0180 5+0.050+0.020 19.0 2-M4 17H 17+0.0180 5+0.0300 19.3 2-M4 -- -- -- -- --
18 18+0.0180 5+0.050+0.020 20.0 2-M4 18H 18+0.0180 6+0.0300 20.8 2-M5 -- -- -- -- --
19 19+0.0210 5+0.050+0.020 21.0 2-M4 19H 19+0.0210 6+0.0300 21.8 2-M5 19N 19+0.028+0.007 6+0.0300 21.8 2-M5
20 20+0.0210 5+0.050+0.020 22.0 2-M4 20H 20+0.0210 6+0.0300 22.8 2-M5 -- -- -- -- --
22 22+0.0210 7+0.061+0.025 25.0 2-M6 22H 22+0.0210 6+0.0300 24.8 2-M5 -- -- -- -- --
24 24+0.0210 7+0.061+0.025 27.0 2-M6 24H 24+0.0210 8+0.0360 27.3 2-M6 24N 24+0.028+0.007 8+0.0360 27.3 2-M6
25 25+0.0210 7+0.061+0.025 28.0 2-M6 25H 25+0.0210 8+0.0360 28.3 2-M6 -- -- -- -- --
28 28+0.0210 7+0.061+0.025 31.0 2-M6 28H 28+0.0210 8+0.0360 31.3 2-M6 28N 28+0.028+0.007 8+0.0360 31.3 2-M6
30 30+0.0210 7+0.061+0.025 33.0 2-M6 30H 30+0.0210 8+0.0360 33.3 2-M6 -- -- -- -- --
32 32+0.0250 10+0.061+0.025 35.5 2-M8 32H 32+0.0250 10+0.0360 35.3 2-M8 -- -- -- -- --
35 35+0.0250 10+0.061+0.025 38.5 2-M8 35H 35+0.0250 10+0.0360 38.3 2-M8 -- -- -- -- --
38 38+0.0250 10+0.061+0.025 41.5 2-M8 38H 38+0.0250 10+0.0360 41.3 2-M8 38N 38+0.050+0.025 10+0.0360 41.3 2-M8
40 40+0.0250 10+0.061+0.025 43.5 2-M8 40H 40+0.0250 12+0.0430 43.3 2-M8 -- -- -- -- --
42 42+0.0250 12+0.075+0.032 45.5 2-M8 42H 42+0.0250 12+0.0430 45.3 2-M8 42N 42+0.050+0.025 12+0.0430 45.3 2-M8
45 45+0.0250 12+0.075+0.032 48.5 2-M8 45H 45+0.0250 14+0.0430 48.8 2-M10 -- -- -- -- --
48 48+0.0250 12+0.075+0.032 51.5 2-M8 48H 48+0.0250 14+0.0430 51.8 2-M10 48N 48+0.050+0.025 14+0.0430 51.8 2-M10
50 50+0.0250 12+0.075+0.032 53.5 2-M8 50H 50+0.0250 14+0.0430 53.8 2-M10 -- -- -- -- --
55 55+0.0300 15+0.075+0.032 60.0 2-M10 55H 55+0.0300 16+0.0430 59.3 2-M10 55N 55+0.060+0.030 16+0.0430 59.3 2-M10
56 56+0.0300 15+0.075+0.032 61.0 2-M10 56H 56+0.0300 16+0.0430 60.3 2-M10 -- -- -- -- --
60 60+0.0300 15+0.075+0.032 65.0 2-M10 60H 60+0.0300 18+0.0430 64.4 2-M10 60N 60+0.060+0.030 18+0.0430 64.4 2-M10

*Tolerance will be h8 class for hole diameter equal to or less than ø10 mm.

*The set screw size is M3 for ALS-014.

[Distance from set screw edge]

 
Model ALS-014 ALS-020 ALS-030 ALS-040 ALS-055 ALS-065 ALS-080 ALS-095 ALS-105
Distance from set screw edge C [mm] 3.5 5 5.5 12.5 15 17.5 22.5 25 28

 

Structure and Materials

Pilot Bore

Pilot Bore

 

Key/Set Screw Type

Key/Set Screw Type

 

Clamp Type

Clamp Type

 

 

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