AL Models - SPRFLEX - MIKI PULLEY COUPLINGS - MIKI PULLEY VIETNAM

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.

Structure and Materials

Pilot Bore

Key/Set Screw Type

[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

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	5	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

Unit ［mm］

Model	L2	R	K
L-035	6.5	―	―
L-050	12.2	―	―
L-070	12.2	―	―
L-075	12.4	20	6.0
L-090	13.0	22	6.3
L-095	13.0	22	6.3
L-100	18.0	26	6.0
L-110	22.0	30	6.0

[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	-
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	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

*The ø11 or below requirement under the new JIS standards and ø11 requirement for the new motor standards are the same as the old JIS standards (class 2).

*For AL-035, the tolerance is ^+0.05₊₀ regardless of bore diameter. The set screw size is M3.

[Distance from set screw edge]

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

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