This design uses a Floating Shaft Coupling to increase the distance between shafts, replacing the double element type spacer. Because the distance between elements is greater than in the W-type spacer design, it can accommodate greater eccentricity than the single element version, which does not allow for any eccentricity. You may also specify the Specified Overall Length.

specifications

models	Permissible (operating) torque [N·m]	Permissible Tolerance			Max. rotation speed [^min⁻¹]	Torsional stiffness [N·m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg·m²]	Mass [kg]
models	Permissible (operating) torque [N·m]	Eccentricity [mm]	Angular Misalignment [°]	In the axial direction [mm]	Max. rotation speed [^min⁻¹]	Torsional stiffness [N·m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg·m²]	Mass [kg]
SFS-05G	20	0.5	1 (one side)	±1.2	20,000	8,000	21.000	0.20 × 10−3	0.50
SFS-06G	40	0.5	1 (one side)	±1.6	16,000	14,000	22.000	0.55 × 10−3	0.90
SFS-08G	80	0.5	1 (one side)	±2.0	13,000	41,000	30.000	1.50 × 10−3	1.70
SFS-09G	180	0.6	1 (per side)	±2.4	12,000	85,000	61.000	2.90 × 10−3	2.40
SFS-10G	250	0.6	1 (per side)	±2.8	10,000	125,000	80.000	4.60 × 10−3	3.30
SFS-12G	450	0.8	1 (per side)	±3.2	8,000	215,000	98.000	11.80 × 10−3	5.80
SFS-14G	800	0.9	1 (per side)	±3.6	7,000	390,000	156.000	21.20 × 10−3	8.60

The max. rotation speed does not take dynamic balance into account.
The moment of inertia and mass are the values at the maximum bore diameter.

Dimensions

三木プーリのサーボフレックスSFSモデル SFS-Gタイプ金属板ばねカップリング寸法図（全長指定対応・寸法変更可能・サーボモータ用高精度軸継手）

Unit [mm]
models	d1・d2			D	N	L	LF	LS	S	F	K	M
models	Pilot hole	Minimum	Maximum	D	N	L	LF	LS	S	F	K	M
SFS-05G	7	8	20	56	32	74	20	24	5	11	24	8-M5×22
SFS-06G	7	8	25	68	40	86	25	24	6	10	30	8-M6×25
SFS-08G	10	11	35	82	54	98	30	26	6	11	38	8-M6×29
SFS-09G	10	11	38	94	58	106	30	30	8	21	42	8-M8×36
SFS-10G	15	16	42	104	68	120	35	30	10	16	48	8-M8×36
SFS-12G	18	19	50	126	78	140	40	38	11	23	54	8-M10×45
SFS-14G	20	22	60	144	88	160	45	46	12	31	61	8-M12×54

The pilot hole is a drill hole. For machined holes, please refer to the Standard hole machining specifications.
The nominal size of a Reema Bolt M is calculated as: quantity × thread size × nominal length.

standard bore size

Unit [mm]
models	Standard Bore Sizes: d1, d2
models	8	9	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	42	45	48	50	55	56	60
SFS-05G	●	●	●	●	●	●	●	●	●	●	●	●
SFS-06G	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SFS-08G				●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SFS-09G				●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SFS-10G								●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SFS-12G											●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SFS-14G													●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●

The bore sizes in the fields marked with a ● are supported as standard bore sizes. For details, please refer to the standard hole machining specifications.

三木プーリのサーボフレックスシリーズSFSモデル Gタイプ金属板ばねカップリングご注文時の型式構成説明図

Standard Hole Machining Specifications

Unit [mm]
Compliant with the former JIS Standard Type 2 (JIS B 1301, 1959)					New JIS Standard H9 , compliant with JIS B 1301 1996					New JIS Standard JS9 (Compliant with JIS B 1301, 1996)					New JIS Standard P9 : Compliant with JIS B 1301 (1996)					Motor Standard : Compliant with JIS C 4210 (2001)
Nominal Bore Size	Bore Size (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal Bore Size	Bore size (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal bore size	Bore Size (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal bore size	Bore Size (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)	Nominal Bore Size	Bore Size (d1, d2)	Keyway width (W1, W2)	Keyway height (T1, T2)	Set screw hole (M)
Nominal Bore Size	Tolerances H7, H8	Tolerance E9	－	－	Nominal Bore Size	Tolerances H7, H8	Tolerance H9	－	－	Nominal bore size	Tolerance H7, H8	Tolerance JS9	－	－	Nominal bore size	Tolerance H7, H8	Tolerance P9	－	－	Nominal Bore Size	Tolerance G7, F7	Tolerance H9	－	－
8	8 + 0.0220	－	－	2–M4	8H	8+0.0220	3 + 0.0250	9.4 + 0.30	2-M4	8J	8 + 0.0220	3 ± 0.0125	9.4 + 0.30	2-M4	8P	8 + 0.0220	3–0.006–0.031	9.4 + 0.30	2-M4	－	－	－	－	－
9	9 + 0.0220	－	－	2-M4	9H	9 + 0.0220	3 + 0.0250	10.4 + 0.30	2-M4	9J	9 + 0.0220	3 ± 0.0125	10.4 + 0.30	2-M4	9P	9 + 0.0220	3–0.006–0.031	10.4 + 0.30	2-M4	－	－	－	－	－
10	10 + 0.0220	－	－	2-M4	10H	10 + 0.0220	3 + 0.0250	11.4 + 0.30	2-M4	10J	10 + 0.0220	3 ± 0.0125	11.4 + 0.30	2-M4	10P	10 + 0.0220	3–0.006–0.031	11.4 + 0.30	2-M4	－	－	－	－	－
11	11 + 0.0180	－	－	2-M4	11H	11 + 0.0180	4 + 0.0300	12.8 + 0.30	2-M4	11J	11 + 0.0180	4 ± 0.0150	12.8 + 0.30	2-M4	11P	11 + 0.0180	4–0.012–0.042	12.8 + 0.30	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	12P	12 + 0.0180	4–0.012–0.042	13.8 + 0.30	2-M4	－	－	－	－	－
14	14 + 0.0180	5 + 0.050 + 0.020	16 + 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	14P	14 + 0.0180	5–0.012–0.042	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 + 0.30	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	15P	15 + 0.0180	5–0.012–0.042	17.3 + 0.30	2-M4	－	－	－	－	－
16	16 + 0.0180	5 + 0.050 + 0.020	18＋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	16P	16 + 0.0180	5–0.012–0.042	18.3 + 0.30	2-M4	－	－	－	－	－
17	17 + 0.0180	5 + 0.050 + 0.020	19 + 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	17P	17 + 0.0180	5–0.012–0.042	19.3 + 0.30	2-M4	－	－	－	－	－
18	18 + 0.0180	5 + 0.050 + 0.020	20 + 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	18P	18 + 0.0180	6–0.012–0.042	20.8 + 0.30	2-M5	－	－	－	－	－
19	19 + 0.0210	5 + 0.050 + 0.020	21 + 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	19P	19 + 0.0210	6–0.012–0.042	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 + 0.30	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	20P	20 + 0.0210	6–0.012–0.042	22.8 + 0.30	2-M5	－	－	－	－	－
22	22 + 0.0210	7 + 0.061 + 0.025	25 + 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	22P	22 + 0.0210	6–0.012–0.042	24.8 + 0.30	2-M5	－	－	－	－	－
24	24 + 0.0210	7 + 0.061 + 0.025	27 + 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	24P	24 + 0.0210	8–0.015–0.051	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 + 0.30	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	25P	25 + 0.0210	8–0.015–0.051	28.3 + 0.30	2-M6	－	－	－	－	－
28	28 + 0.0210	7 + 0.061 + 0.025	31+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	28P	28 + 0.0210	8–0.015–0.051	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 + 0.30	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	30P	30 + 0.0210	8–0.015–0.051	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	32P	32 + 0.0250	10–0.015–0.051	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	35P	35 + 0.0250	10–0.015–0.051	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	38P	38 + 0.0250	10–0.015–0.051	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	40P	40 + 0.0250	12–0.018–0.061	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	42P	42 + 0.0250	12–0.018–0.061	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	45P	45 + 0.0250	14–0.018–0.061	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	48P	48 + 0.0250	14–0.018–0.061	51.8 + 0.30	2-M10	48N	48 + 0.050 + 0.025	14 + 0.0430	51.8 + 0.30	2-M10
50	50 + 0.0250	12 + 0.075 + 0.032	53.5 + 0.30	2–M8	50H	50 + 0.0250	14 + 0.0430	53.8 + 0.30	2–M10	50J	50 + 0.0250	14 ± 0.0215	53.8 + 0.30	2–M10	50P	50 + 0.0250	14–0.018–0.061	53.8 + 0.30	2-M10	－	－	－	－	－
55	55 + 0.0300	15 + 0.075 + 0.032	60 + 0.30	2–M10	55H	55 + 0.0300	16 + 0.0430	59.3 + 0.30	2–M10	55J	55 + 0.0300	16 ± 0.0215	59.3 + 0.30	2–M10	55P	55 + 0.0300	16–0.018–0.061	59.3 + 0.30	2-M10	55N	55 + 0.060 + 0.030	16 + 0.0430	59.3 + 0.30	2-M10
56	56 + 0.0300	15 + 0.075 + 0.032	61 + 0.30	2-M10	56H	56 + 0.0300	16 + 0.0430	60.3 + 0.30	2–M10	56J	56 + 0.0300	16 ± 0.0215	60.3 + 0.30	2–M10	56P	56 + 0.0300	16–0.018–0.061	60.3 + 0.30	2-M10	－	－	－	－	－
60	60 + 0.0300	15 + 0.075 + 0.032	65 + 0.30	2–M10	60H	60 + 0.0300	18 + 0.0430	64.4 + 0.30	2–M10	60J	60 + 0.0300	18 ± 0.0215	64.4 + 0.30	2–M10	60P	60 + 0.0300	18–0.018–0.061	64.4 + 0.30	2-M10	60N	60 + 0.060 + 0.030	18 + 0.0430	64.4 + 0.30	2-M10

The set screw and the keyway will not be located on the same plane.
The set screws are included with the product.
The positional accuracy of Keyway Machining is checked by visual inspection.
Please Contact Us if you require positional accuracy for the keyways relative to each hub.
For standard dimensions of hole machining other than those listed here, please refer to the technical data at the end of this document.

Position of the set screw

Unit [mm]
models	Distance from End Face
SFS-05	7
SFS-06	9
SFS-08	10
SFS-09	10
SFS-10	12
SFS-12	12
SFS-14	15

Taper Shaft Compatible: SFS-□G

Taper Shaft Compatible with Servo Motors.

Specifications (Tapered Shaft)

models	Permissible (operating) torque [N·m]	Permissible Tolerance			Max. rotation speed [^min⁻¹]	Torsional stiffness [N·m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg·m²]	Mass [kg]
models	Permissible (operating) torque [N·m]	Eccentricity [mm]	Angular misalignment [°]	In the axial direction [mm]	Max. rotation speed [^min⁻¹]	Torsional stiffness [N·m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg·m²]	Mass [kg]
SFS-06G-□M-11C	40	0.5	1 (one side)	±1.6	5,000	14,000	22	0.54×10−3	1.00
SFS-06G-□M-16C	40	0.5	1 (one side)	±1.6	5,000	14,000	22	0.59×10−3	1.10
SFS-08G-□M-16C	80	0.5	1 (per side)	±2.0	5,000	41,000	30	1.47×10−3	1.90
SFS-09G-□M-16C	180	0.6	1 (per side)	±2.4	5,000	85,000	61	2.80 × 10⁻³	2.60

The permissible (operating) torque may be limited by the Holding Power of the shaft fastening section. Please check this if the bore size is smaller than the standard bore size.
The max. rotation speed does not take dynamic balance into account.
The moment of inertia and mass are the values at the maximum bore diameter.

Dimensions (Tapered Shaft)

三木プーリのサーボフレックスシリーズSFSモデルGタイプ（テーパ軸対応）金属板ばねカップリング寸法図外形寸法および主要部寸法を示す寸法図

Unit [mm]
models	d2 Nominal size	d1	d2	W +0.0300	T +0.30	d4	J	D	N1	N2	L1	L2	L3	LF1	LF2	LP	LS	S	C	d3	K	MS	MW	MG	M1	M2
SFS-06	11C	12, 14, 15	11	4	12.2	18	9	68	40	30	60.8	78.8	90.8	25	25	12	24	6	4.8	24	30	4-M6×25	8-M6×18	8-M6×25	4-M5	2-M5
SFS-06	16C	15	16	5	17.3	28	10	68	40	40	75.8	93.8	105.8	40	25	12	24	6	4.8	24	30	4-M6×25	8-M6×18	8-M6×25	4-M5	2-M5
SFS-08	16C	15, 16, 17, 18, 19, 20, 22	16	5	17.3	28	10	82	54	40	80.8	98.8	112.8	30	40	12	26	6	4.8	28	38	4-M6×29	8-M6×20	8-M6×29	4-M6	2-M6
SFS-09	16C	25・28	16	5	17.3	28	10	94	58	40	82.8	112.8	120.8	30	40	22	30	8	4.8	32	42	4-M8×36	8-M8×27	8-M8×36	6-M6	2-M6
SFS-09	16C	30, 32, 35	16	5	17.3	28	10	94	68	40	90.8	120.8	128.8	38	40	22	30	8	4.8	32	42	4-M8×36	8-M8×27	8-M8×36	6-M6	2-M6

For the SFS(G) type, if you require a product with LS dimensions other than those listed, please specify the required LS dimensions. Additionally, if LS ≥ 1000, Contact Us.
The nominal size for each bolt and tap is calculated as: quantity × thread size × nominal length.
The dimensional tolerance for the mating shaft of the keyless locking hub is h7 (h6·g6).

三木プーリのサーボフレックスシリーズSFSモデル（テーパ軸対応）金属板ばねカップリングご注文時の型式構成説明図

Keyless Locking Hub SFS-□G

By incorporating a Keyless Locking mechanism into the hub, it is possible to achieve a installation with high accuracy.

Specifications (Keyless Locking)

models	Permissible (operating) torque [N·m]	Permissible Tolerance			Max. rotation speed [^min⁻¹]	Torsional stiffness [N·m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg·m²]	Mass [kg]
models	Permissible (operating) torque [N·m]	Eccentricity [mm]	Angular misalignment [°]	In the axial direction [mm]	Max. rotation speed [^min⁻¹]	Torsional stiffness [N·m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg·m²]	Mass [kg]
SFS-06G-□M-□M	40	0.5	1 (one side)	±1.6	5,000	14,000	22	0.55 × 10⁻³	1.10
SFS-08G-□M-□M	80	0.5	1 (one side)	±2.0	5,000	41,000	30	1.56×10−3	2.00
SFS-09G-□M-□M	180	0.6	1 (one side)	±2.4	5,000	85,000	61	3.10×10−3	2.80
SFS-10G-□M-□M	250	0.6	1 (one side)	±2.8	5,000	125,000	80	4.70 × 10⁻³	3.50
SFS-12G-□M-□M	450	0.8	1 (per side)	±3.2	5,000	215,000	98	12.10×10−3	6.50
SFS-14G-□M-□M	580	0.9	1 (one side)	±3.6	5,000	390,000	156	25.31×10⁻³	10.10

The permissible torque may be limited by the holding power of the shaft fastening section, so please check it using the standard bore size.
The max. rotation speed does not take dynamic balance into account.
The moment of inertia and mass are the values at the maximum bore diameter.

Dimensions (Keyless Locking)

三木プーリのサーボフレックスシリーズSFSモデルGタイプ（摩擦締結ハブ）金属板ばねカップリング寸法図外形寸法および主要部寸法を示す寸法図

Unit [mm]
models	d1	d2	D	N1	N2	L1	L2	L3	LF1	LF2	LP	LS	S	C	d3	K	MS	MW	MG	M1	M2
SFS-06	12, 14, 15	12, 14, 15	68	40	40	65.6	83.6	95.6	25	25	12	24	6	4.8	24	30	4-M6×25	8-M6×18	8-M6×25	4-M5	2-M5
SFS-08	15, 16, 17, 18, 19, 20, 22	15, 16, 17, 18, 19, 20, 22	82	54	54	75.6	93.6	107.6	30	30	12	26	6	4.8	28	38	4-M6×29	8-M6×20	8-M6×29	4-M6	2-M6
SFS-09	25・28	25, 28	94	58	58	77.6	107.6	115.6	30	30	22	30	8	4.8	32	42	4-M8×36	8-M8×27	8-M8×36	6-M6	2-M6
	25, 28	30, 32, 35		58	68	85.6	115.6	123.6	30	38
	30, 32, 35	30, 32, 35		68	68	93.6	123.6	131.6	38	38
SFS-10	25, 28, 30, 32, 35	25, 28, 30, 32, 35	104	68	68	89.6	119.6	129.6	35	35	20	30	10	4.8	34	48	4-M8×36	8-M8×27	8-M8×36	6-M6	2-M6
SFS-12	30, 32, 35	30, 32, 35	126	78	78	101.6	137.6	150.6	40	40	25	38	11	5.3	40	54	4-M10×45	8-M10×32	8-M10×45	4-M8	2-M8
SFS-14	35	35	144	88	88	112.6	154.6	170.6	45	45	30	46	12	5.3	46	61	4-M12×54	8-M12×38	8-M12×54	6-M8	2-M8

For the SFS(G) type, if you require a product with dimensions other than the LS dimension, please specify the required LS dimension. Additionally, Contact Us if LS is 1000 or greater.
The nominal size of each bolt and tap is used to determine the quantity, which is calculated by subtracting the thread size from the nominal length and multiplying the result by the nominal length. The quantities for the M1 pressure bolts and M2 removal screw holes refer to the number on one side of the hub.

Standard Bore Size (Keyless Locking)

Unit [mm]
models	Standard bore size d1	Standard Bore Size d2
models	Standard bore size d1	12M	14M	15M	16M	17M	18M	19M	20M	22M	25M	28M	30M	32M	35M
SFS-06	12M	●	●	●
	14M		●	●
	15M			●
SFS-08	15M			●	●	●	●	●	●	●
	16M				●	●	●	●	●	●
	17M					●	●	●	●	●
	18M						●	●	●	●
	19M							●	●	●
	20M								●	●
	22M									●
SFS-09	25M										●	●	●	●	●
	28M											●	●	●	●
	30M												●	●	●
	32M													●	●
	35M														●
SFS-10	25M										●	●	●	●	●
	28M											●	●	●	●
	30M												●	●	●
	32M													●	●
	35M														●
SFS-12	30M												380	380	380
	32M													400	400
	35M														●
SFS-14	35M														●

The bore sizes indicated by the ● symbol and the corresponding numbers in the table are standard. For bore sizes not listed in the table above, we may be able to accommodate them on a case-by-case basis, so Contact Us.
For holes with numerical values, the permissible (operating) torque is limited by the Holding Power at the shaft fastening section due to the small bore size. The numerical values indicate the permissible torque [N·m].
For bore sizes not listed in the table above, please note that the permissible (operating) torque may be limited if the bore size is small.
The dimensional tolerance for the mating shaft is class h (7 h6·g6). However, for a bore size of φ35, the shaft tolerance is +0.010 and –0.025.

三木プーリのサーボフレックスシリーズSFSモデル（摩擦締結ハブ）金属板ばねカップリングご注文時の型式構成説明図