AL Models

These couplings have simpler designs that sandwich a rubber buffer (nitrile rubber) between two hubs. The hub is lightweight, being made of aluminum alloy.Mounting on a shaft is easy. Simply hold a straight-edge to the hub periphery to center it. One source of appeal is that its simple construction means lower cost.

AL Models

[Specifications]

Model Torque Misalignment Max. rotation speed ［min-1］ Moment of inertia ［kg・m2］ Mass ［kg］
Nominal ［N・m］ Max. ［N・m］ Parallel ［mm］ Angular ［°］ Axial ［mm］
AL-035 0.5 1.5 0.1 0.5 ＋0.3 18000 0.38×10-6 0.01
AL-050 1.5 4.5 0.2 1.0 ±0.5 12000 5.10×10-6 0.06
AL-070 3 9 0.2 1.0 ±0.5 9000 1.79×10-5 0.12
AL-075 5 15 0.2 1.0 ±0.5 7000 5.36×10-5 0.21
AL-090 8 24 0.3 1.0 ±0.5 6000 1.15×10-4 0.31
AL-095 10 30 0.3 1.0 ±0.5 6000 1.40×10-4 0.36
AL-100 25 75 0.3 1.0 ±0.7 5000 4.34×10-4 0.78
AL-110 50 150 0.3 1.0 ±0.7 4000 1.43×10-3 1.56
*Max. rotation speed does not take into account dynamic balance or mounting misalignment. *The moment of inertia and mass are measured for the pilot bore.

[Dimensions]

couplings

couplings
Unit ［mm］
Model d1, d2 D L L1 L2
Pilot bore Min. Max.
AL-035 4 4 8 16.1 20.5 6.5 7.5*1
AL-050 5 6 16 27 43.2 15.5 12.2
AL-070 5 6 20 35 49.2 18.5 12.2
AL-075 5 7 26 45 54.4 21.0 12.4
AL-090 5 9 28 54 55.0 21.0 13.0
AL-095 5 9 28 55 61.0 24.0 13.0
AL-100 5 11 36 66 88.0 35.0 18.0
AL-110 8 11 48 85 110.0 44.0 22.0
*"Pilot bore" refers to center processing. Minimums and maximums for d1 and d2 are values at the MIKI PULLEY standard hole-drilling standards. *The value marked *1 leaves a 1 mm space for the thickness of the spider body.

[Dimensions]

Spider

Spider
Unit ［mm］
Coupling Model Spider Model L2 R K
AL-035 L-035 6.5 ― ―
AL-050 L-050 12.2 ― ―
AL-070 L-070 12.2 ― ―
AL-075 L-075 12.4 20 6.0
AL-090 L-090/095 13.0 22 6.3
AL-095 L-090/095 13.0 22 6.3
AL-100 L-100 18.0 26 6.0
AL-110 L-110 22.0 30 6.0
   

[Standard Hole-drilling Standards]

Unit ［mm］
Models compliant with the old JIS standard (class 2) JIS B 1301 1959 Models compliant with the new JIS standard (H9) JIS B 1301 1996 Models compliant with the new JIS standard (JS9) JIS B 1301 1996 Models compliant with the motor standard JIS C 4210 2001
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) Nominal bore diameter Bore diameter (d1, d2) Keyway width (W1, W2) Keyway height (T1, T2) Set screw hole (M)
Tolerance H7, H8 Tolerance E9 - Tolerance H7 Tolerance H9 - Tolerance H7 Tolerance JS9 - Tolerance G7, F7 Tolerance H9 -
6 6+0.0180 - - 2-M4 - - - - - - - - - - - - - - -
7 7+0.0220 - - 2-M4 - - - - - - - - - - - - - - -
8 8+0.0220 - - 2-M4 - - - - - - - - - - - - - - -
9 9+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+0.30 2-M4 12H 12+0.0180 4+0.0300 13.8+0.30 2-M4 12J 12+0.0180 4±0.0150 13.8+0.30 2-M4 - - - - -
14 14+0.0180 5+0.050+0.020 16.0+0.30 2-M4 14H 14+0.0180 5+0.0300 16.3+0.30 2-M4 14J 14+0.0180 5±0.0150 16.3+0.30 2-M4 14N 14+0.024+0.006 5+0.0300 16.3+0.30 2-M4
15 15+0.0180 5+0.050+0.020 17.0+0.30 2-M4 15H 15+0.0180 5+0.0300 17.3+0.30 2-M4 15J 15+0.0180 5±0.0150 17.3+0.30 2-M4 - - - - -
16 16+0.0180 5+0.050+0.020 18.0+0.30 2-M4 16H 16+0.0180 5+0.0300 18.3+0.30 2-M4 16J 16+0.0180 5±0.0150 18.3+0.30 2-M4 - - - - -
17 17+0.0180 5+0.050+0.020 19.0+0.30 2-M4 17H 17+0.0180 5+0.0300 19.3+0.30 2-M4 17J 17+0.0180 5±0.0150 19.3+0.30 2-M4 - - - - -
18 18+0.0180 5+0.050+0.020 20.0+0.30 2-M4 18H 18+0.0180 6+0.0300 20.8+0.30 2-M5 18J 18+0.0180 6±0.0150 20.8+0.30 2-M5 - - - - -
19 19+0.0210 5+0.050+0.020 21.0+0.30 2-M4 19H 19+0.0210 6+0.0300 21.8+0.30 2-M5 19J 19+0.0210 6±0.0150 21.8+0.30 2-M5 19N 19+0.028+0.007 6+0.0300 21.8+0.30 2-M5
20 20+0.0210 5+0.050+0.020 22.0+0.30 2-M4 20H 20+0.0210 6+0.0300 22.8+0.30 2-M5 20J 20+0.0210 6±0.0150 22.8+0.30 2-M5 - - - - -
22 22+0.0210 7+0.061+0.025 25.0+0.30 2-M6 22H 22+0.0210 6+0.0300 24.8+0.30 2-M5 22J 22+0.0210 6±0.0150 24.8+0.30 2-M5 - - - - -
24 24+0.0210 7+0.061+0.025 27.0+0.30 2-M6 24H 24+0.0210 8+0.0360 27.3+0.30 2-M6 24J 24+0.0210 8±0.0180 27.3+0.30 2-M6 24N 24+0.028+0.007 8+0.0360 27.3+0.30 2-M6
25 25+0.0210 7+0.061+0.025 28.0+0.30 2-M6 25H 25+0.0210 8+0.0360 28.3+0.30 2-M6 25J 25+0.0210 8±0.0180 28.3+0.30 2-M6 - - - - -
28 28+0.0210 7+0.061+0.025 31.0+0.30 2-M6 28H 28+0.0210 8+0.0360 31.3+0.30 2-M6 28J 28+0.0210 8±0.0180 31.3+0.30 2-M6 28N 28+0.028+0.007 8+0.0360 31.3+0.30 2-M6
30 30+0.0210 7+0.061+0.025 33.0+0.30 2-M6 30H 30+0.0210 8+0.0360 33.3+0.30 2-M6 30J 30+0.0210 8±0.0180 33.3+0.30 2-M6 - - - - -
32 32+0.0250 10+0.061+0.025 35.5+0.30 2-M8 32H 32+0.0250 10+0.0360 35.3+0.30 2-M8 32J 32+0.0250 10±0.0180 35.3+0.30 2-M8 - - - - -
35 35+0.0250 10+0.061+0.025 38.5+0.30 2-M8 35H 35+0.0250 10+0.0360 38.3+0.30 2-M8 35J 35+0.0250 10±0.0180 38.3+0.30 2-M8 - - - - -
38 38+0.0250 10+0.061+0.025 41.5+0.30 2-M8 38H 38+0.0250 10+0.0360 41.3+0.30 2-M8 38J 38+0.0250 10±0.0180 41.3+0.30 2-M8 38N 38+0.050+0.025 10+0.0360 41.3+0.30 2-M8
40 40+0.0250 10+0.061+0.025 43.5+0.30 2-M8 40H 40+0.0250 12+0.0430 43.3+0.30 2-M8 40J 40+0.0250 12±0.0215 43.3+0.30 2-M8 - - - - -
42 42+0.0250 12+0.075+0.032 45.5+0.30 2-M8 42H 42+0.0250 12+0.0430 45.3+0.30 2-M8 42J 42+0.0250 12±0.0215 45.3+0.30 2-M8 42N 42+0.050+0.025 12+0.0430 45.3+0.30 2-M8
45 45+0.0250 12+0.075+0.032 48.5+0.30 2-M8 45H 45+0.0250 14+0.0430 48.8+0.30 2-M10 45J 45+0.0250 14±0.0215 48.8+0.30 2-M10 - - - - -
48 48+0.0250 12+0.075+0.032 51.5+0.30 2-M8 48H 48+0.0250 14+0.0430 51.8+0.30 2-M10 48J 48+0.0250 14±0.0215 51.8+0.30 2-M10 48N 48+0.050+0.025 14+0.0430 51.8+0.30 2-M10
*All standards starting from ø11 are the same as those in the old JIS standards column. *For AL-035, tolerance is +0.05+0 regardless of the bore diameter, and set screw size is M3. *Positions of set screws and keyways are not on the same plane. *Set screws are included with the product. *Positioning precision for keyway milling is determined by sight. *Contact Miki Pulley when the keyway requires a positioning precision for a particular flange hub. *Consult the technical documentation at the end of this volume for standard dimensions for bore drilling other than those given here.  

[Set screw position]

Unit [mm]
Model Distance C from edge［mm］
AL-035 3.5
AL-050 7.5
AL-070 9
AL-075 10
AL-090 12
AL-095 12
AL-100 12
AL-110 15