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AL Model

三木プーリのスパフレックスALモデル ALタイプゴム・樹脂カップリング製品画像（ジョーカップリング・防振・衝撃吸収軸継手）

This is a simple jaw coupling consisting of nothing more than a rubber buffer (nitrile rubber) sandwiched between two hubs; the hubs are made of aluminum alloy, making the coupling lightweight. Furthermore, alignment with the shaft is easy—simply place a straight edge against the outer circumference of the hub. Its simple design also makes it an affordable option.

[Specifications]

Model	Torque		Tolerance			"Maximum rotational speed [min⁻¹]"	"Moment of inertia [kg·m²]"	"Mass [kg]"	"Price of pre-drilled product [JPY]"
Model	"Rated [N·m]"	"Maximum [N·m]"	"Eccentricity [mm]"	"Angular Deviation [°]"	"Axial [mm]"	"Maximum rotational speed [min⁻¹]"	"Moment of inertia [kg·m²]"	"Mass [kg]"	"Price of pre-drilled product [JPY]"
AL-035	0.5	1.5	0.1	0.5	0.3	18,000	0.38×10⁻⁶	0.01	1,090
AL-050	1.5	4.5	0.2	1	±0.5	12,000	5.10×10⁻⁶	0.06	1,200
AL-070	3	9				9,000	1.79×10⁻⁵	0.12	1,350
AL-075	5	15				7,000	5.36×10⁻⁵	0.21	1,780
AL-090	8	24	0.3			6,000	1.15×10⁻⁴	0.31	2,190
AL-095	10	30				6,000	1.40×10⁻⁴	0.36	2,890
AL-100	25	75			±0.7	5,000	4.34×10⁻⁴	0.78	5,630
AL-110	50	150			±0.7	4,000	1.43×10⁻³	1.56	9,770

The maximum rotational speed does not take into account dynamic balance or mounting errors.
The moment of inertia and mass are the values for the bottom hole.

[Dimensions]

三木プーリのスパフレックスALモデル ALタイプゴム・樹脂カップリング寸法図（ジョーカップリング・防振・衝撃吸収軸継手）

Unit [mm]

Model	d1・d2			D	L	L1	L2	CAD File No.
Model	Pilot hole	Min.	Max	D	L	L1	L2	CAD File No.
AL-035	4	4	8	16.1	20.5	6.5	7.5^*1	AL0
AL-050	5	6	16	27	43.2	15.5	12.2	AL1
AL-070		6	20	35	49.2	18.5	12.2	AL2
AL-075		7	26	45	54.4	21.0	12.4	AL3
AL-090		9	28	54	55.0	21.0	13.0	AL4
AL-095		9	28	55	61.0	24.0	13.0	AL5
AL-100		11	36	66	88.0	35.0	18.0	AL6
AL-110	8	11	48	85	110.0	44.0	22.0	AL7

"Pilot hole" refers to center drilling. The minimum and maximum values for d1 and d2 are based on our standard hole drilling specifications.
The value in *1 accounts for a 1mm gap around the spider itself.

[Standard Hole Drilling Specifications]

Unit [mm]

Compliant with JIS B 1301 1959 (Old Standard Type 2)					Compliant with JIS New Standard H9 JIS B 1301 1996					Compliant with JIS New Standard JS9 JIS B 1301 1996					Motor Standard: Compliant with JIS C 4210 2001
Nominal hole diameter	Bore Diameter (d1, d2)	Keyway width (W1, W2)	Keyway depth (T1, T2)	Set screw hole (M)	Nominal hole diameter	Hole diameter (d1, d2)	Keyway width (W1, W2)	Keyway depth (T1, T2)	Set screw hole (M)	Nominal hole diameter	Hole diameter (d1, d2)	Keyway width (W1, W2)	Keyway depth (T1, T2)	Set screw hole (M)	Nominal hole diameter	Hole diameter (d1, d2)	Keyway width (W1, W2)	Keyway depth (T1, T2)	Set screw hole (M)
Nominal hole diameter	Tolerance H7, H8	Tolerance E9	―		Nominal hole diameter	Tolerance H7	Tolerance H9	―		Nominal hole diameter	Tolerance H7	Tolerance JS9	―		Nominal hole diameter	Tolerance G7, F7	Tolerance H9	―
6	6+^0.0180	―	―	2-M4	―	―	―	―	―	―	―	―	―	―	―	―	―	―	―
7	7+^0.0220
8	8 ^{+ 0.0220}
9	9 ^{+ 0.0220}
10	10 ^{+ 0.0220}
11	11 ^{+ 0.0180}
12	12 ^{+ 0.0180}	4 ^{+ 0.050} _{+ 0.020}	13.5 ^{+ 0.3}₀		12H	12 ^{+ 0.0180}	4 ^{+ 0.0300}	13.8 ^{+ 0.3}₀	2-M4	12J	12 ^{+ 0.0180}	4±0.0150	13.8 ^{+ 0.3}₀	2-M4
14	14 ^{+ 0.0180}	5 ^{+ 0.050} _{+ 0.020}	16.0 ^{+ 0.3}₀		14H	14 ^{+ 0.0180}	5 ^{+ 0.0300}	16.3 ^{+ 0.3}₀		14J	14 ^{+ 0.0180}	5 ± 0.0150	16.3 ^{+ 0.3}₀		14N	14 ^{+ 0.}₀²⁴ _{+ 0.006}	5 ^{+ 0.0300}	16.3 ^{+ 0.3}₀	2-M4
15	15 ^{+ 0.0180}		17.0 ^{+ 0.3}₀		15H	15 ^{+ 0.0180}		17.3 ^{+ 0.3}₀		15J	15 ^{+ 0.0180}		17.3 ^{+ 0.3}₀		―	―	―	―	―
16	16 ^{+ 0.0180}		18.0 ^{+ 0.3}₀		16H	16 ^{+ 0.0180}		18.3 ^{+ 0.3}₀		16J	16 ^{+ 0.0180}		18.3 ^{+ 0.3}₀
17	17 ^{+ 0.0180}		19.0 ^{+ 0.3}₀		17H	17 ^{+ 0.0180}		19.3 ^{+ 0.3}₀		17J	17 ^{+ 0.0180}		19.3 ^{+ 0.3}₀
18	18 ^{+ 0.0180}		20.0 ^{+ 0.3}₀		18H	18 ^{+ 0.0180}	6 ^{+ 0.0300}	20.8 ^{+ 0.3}₀	2-M5	18J	18 ^{+ 0.0180}	6±0.0150	20.8 ^{+ 0.3}₀	2-M5
19	19 ^{+ 0.0210}		21.0 ^{+ 0.3}₀		19H	19 ^{+ 0.0210}		21.8 ^{+ 0.3}₀		19J	19 ^{+ 0.0210}		21.8 ^{+ 0.3}₀		19N	19 ^{+ 0.}₀²⁸ _{+ 0.007}	6 ^{+ 0.0300}	21.8 ^{+ 0.3}₀	2-M5
20	20 ^{+ 0.0210}		22.0 ^{+ 0.3}₀		20H	20 ^{+ 0.0210}		22.8 ^{+ 0.3}₀		20J	20 ^{+ 0.0210}		22.8 ^{+ 0.3}₀		―	―	―	―	―
22	22 ^{+ 0.0210}	7 ^{+ 0.06 1} _{+ 0.025}	25.0 ^{+ 0.3}₀	2-M6	22H	22 ^{+ 0.0210}		24.8 ^{+ 0.3}₀		22J	22 ^{+ 0.0210}		24.8 ^{+ 0.3}₀		―	―	―	―	―
24	24 ^{+ 0.0210}		27.0 ^{+ 0.3}₀		24H	24 ^{+ 0.0210}	8 ^{+ 0.0360}	27.3 ^{+ 0.3}₀	2-M6	24J	24 ^{+ 0.0210}	8±0.0180	27.3 ^{+ 0.3}₀	2-M6	24N	24 ^{+ 0.}₀²⁸ _{+ 0.007}	8 ^{+ 0.0360}	27.3 ^{+ 0.3}₀	2-M6
25	25 ^{+ 0.0210}		28.0 ^{+ 0.3}₀		25H	25 ^{+ 0.0210}		28.3 ^{+ 0.3}₀		25J	25 ^{+ 0.0210}		28.3 ^{+ 0.3}₀		―	―	―	―	―
28	28 ^{+ 0.0210}		31.0 ^{+ 0.3}₀		28H	28 ^{+ 0.0210}		31.3 ^{+ 0.3}₀		28J	28 ^{+ 0.0210}		31.3 ^{+ 0.3}₀		28N	28 ^{+ 0.}₀²⁸ _{+ 0.007}	8 ^{+ 0.0360}	31.3 ^{+ 0.3}₀	2-M6
30	30 ^{+ 0.0210}		33.0 ^{+ 0.3}₀		30H	30 ^{+ 0.0210}		33.3 ^{+ 0.3}₀		30J	30 ^{+ 0.0210}		33.3 ^{+ 0.3}₀		―	―	―	―	―
32	32 ^{+ 0.0250}	10 ^{+ 0.06 1} _{+ 0.025}	35.5 ^{+ 0.3}₀	2-M8	32H	32 ^{+ 0.0250}	10 ^{+ 0.0360}	35.3 ^{+ 0.3}₀	2-M8	32J	32 ^{+ 0.0250}	10±0.0180	35.3 ^{+ 0.3}₀	2-M8
35	35 ^{+ 0.0250}		38.5 ^{+ 0.3}₀		35H	35 ^{+ 0.0250}		38.3 ^{+ 0.3}₀		35J	35 ^{+ 0.0250}		38.3 ^{+ 0.3}₀
38	38 ^{+ 0.0250}		41.5 ^{+ 0.3}₀		38H	38 ^{+ 0.0250}		41.3 ^{+ 0.3}₀		38J	38 ^{+ 0.0250}		41.3 ^{+ 0.3}₀		38N	38 ^{+ 0.}₀⁵_{0 + 0.025}	10 ^{+ 0.0360}	41.3 ^{+ 0.3}₀	2-M8
40	40 ^{+ 0.0250}		43.5 ^{+ 0.3}₀		40H	40 ^{+ 0.0250}	12 ^{+ 0.0430}	43.3 ^{+ 0.3}₀		40J	40 ^{+ 0.0250}	12 ± 0.0215	43.3 ^{+ 0.3}₀		―	―	―	―	―
42	42 ^{+ 0.0250}	12 ^{+ 0.}₀⁷⁵ _{+ 0.032}	45.5 ^{+ 0.3}₀		42H	42 ^{+ 0.0250}	12 ^{+ 0.0430}	45.3 ^{+ 0.3}₀		42J	42 ^{+ 0.0250}	12 ± 0.0215	45.3 ^{+ 0.3}₀		42N	42 ^{+ 0.}₀⁵_{0 + 0.025}	12 ^{+ 0.0430}	45.3 ^{+ 0.3}₀	2-M8
45	45 ^{+ 0.0250}		48.5 ^{+ 0.3}₀		45H	45 ^{+ 0.0250}	14 ^{+ 0.0430}	48.8 ^{+ 0.3}₀	2-M10	45J	45 ^{+ 0.0250}	14±0.0215	48.8 ^{+ 0.3}₀	2-M10	―	―	―	―	―
48	48 ^{+ 0.0250}		51.5 ^{+ 0.3}₀		48H	48 ^{+ 0.0250}	14 ^{+ 0.0430}	51.8 ^{+ 0.3}₀	2-M10	48J	48 ^{+ 0.0250}	14±0.0215	51.8 ^{+ 0.3}₀	2-M10	48N	48 ^{+ 0.}₀⁵_{0 + 0.025}	14 ^{+ 0.0430}	51.8 ^{+ 0.3}₀	2-M10

All specifications for diameters of 11 mm or less are identical to those listed in the "Old JIS Standards" column.
For AL-035, the tolerance is +0.05+0 regardless of the hole diameter, and the set screw size is M3.
The set screw and the keyway are not located on the same plane.
The set screw is included with the product.
The positional accuracy of keyway machining is checked visually.
Please contact us if you require positional accuracy for the keyways relative to each hub.
For standard dimensions of hole patterns other than those listed here, please refer to the technical documentation.

三木プーリのスパフレックス（ジョーカップリング）ALモデルゴム・樹脂カップリングご注文時の型式構成説明図

[Location of the set screw]

Unit [mm]

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