CF-H Models

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Features of CF-H Models

Motive power is transmitted by polyester resin that has the elastic force of rubber.These models boast excellent vibration and shock absorption while achieving resistance to heat, cold and oil not shown by natural rubber. They can also easily engage or isolate input/output simply by moving in the axial direction, facilitating maintenance.

Excellent environmental resistance

In addition to absorbing vibration and shock, they have excellent resistance to cold, heat, and oil, enabling their use in punishing environments.

Clamping hubs

When coupling a spline shaft (pump shaft) and cylinder hub, a clamping hub can be provided to allow complete locking in place by means of center lock action. We can design to meet your needs, so please contact us for details.

CF-H Models Specifications

CF-H (O0/O1/O2) Types

CF-H (O0/O1/O2) Types

[Specifications]

Model	Torque		Misalignment			Max. rotation speed ［min^-1］	Dynamic torsional stiffness ［N・m/rad］
Model	Nominal ［N・m］	Max. ［N・m］	Parallel ［mm］	Angular ［°］	Axial ［mm］	Max. rotation speed ［min^-1］	Dynamic torsional stiffness ［N・m/rad］
CF-H-008	100	200	0.3	0.5	± 3	6500	1.27×10⁴
CF-H-016	200	400	0.3	0.5	± 3	5500	2.46×10⁴
CF-H-030	400	800	0.4	0.5	± 3	4000	5.91×10⁴
CF-H-040	600	1200	0.4	0.5	± 3	4000	1.87×10⁵
CF-H-050	800	1600	0.4	0.5	± 3	4000	1.91×10⁵
CF-H-090	950	1900	0.4	0.5	± 3	4000	2.69×10⁵
CF-H-110	1100	2200	0.4	0.5	± 3	4000	2.79×10⁵
CF-H-160	1600	3200	0.4	0.5	± 3	3600	5.11×10⁵
CF-H-240	2500	5000	0.4	0.5	± 3	3000	5.10×10⁵

Model	Moment of inertia ［kg・m²］	Mass ［kg］
CF-H-008-O0	9.4×10^-4	0.4
CF-H-016-O0	3.0×10^-3	0.8
CF-H-030-O0	9.2×10^-3	1.5
CF-H-040-O0	6.9×10^-3	1.4
CF-H-050-O0	1.2×10^-2	1.8
CF-H-090-O0	1.5×10^-2	2.3
CF-H-110-O0	2.3×10^-2	2.8
CF-H-160-O0	3.6×10^-2	3.4
CF-H-240-O0	0.10	5.8

Model	Moment of inertia ［kg・m²］	Mass ［kg］
CF-H-008-O1	1.8×10^-3	1.3
CF-H-016-O1	4.9×10^-3	2.5
CF-H-030-O1	1.9×10^-2	6.0
CF-H-040-O1	1.3×10^-2	4.4
CF-H-050-O1	2.3×10^-2	6.5
CF-H-090-O1	2.6×10^-2	6.9
CF-H-110-O1	3.7×10^-2	9.7
CF-H-160-O1	7.0×10^-2	11.9
CF-H-240-O1	0.18	20.9

Model	Moment of inertia ［kg・m²］	Mass ［kg］
CF-H-008-O2	3.9×10^-3	3.1
CF-H-016-O2	1.1×10^-2	5.6
CF-H-030-O2	4.6×10^-2	13.9
CF-H-040-O2	2.8×10^-2	9.8
CF-H-050-O2	5.0×10^-2	14.4
CF-H-090-O2	5.3×10^-2	14.8
CF-H-110-O2	8.2×10^-2	18.3
CF-H-160-O2	0.16	26.1
CF-H-240-O2	0.39	48.8

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

*Dynamic torsion spring characteristics are non-linear, so use a dynamic torsional stiffness that is at least roughly 20% of rated torque.

*The dynamic torsional stiffness is about 1.3 times that of the static torsional stiffness.

*Values for moment of inertia and mass are those when the cylindrical hub and flange hub have pilot bores.

[Dimensions]

Unit ［mm］

Model	d1			d2			D1	D2	N1	N2	L1	L2	L3	A	B	B1	C	E	F	S	TK	M1	M2
Model	Pilot bore	Min.	Max.	Pilot bore	Min.	Max.	D1	D2	N1	N2	L1	L2	L3	A	B	B1	C	E	F	S	TK	M1	M2
CF-H-008	12	14	38	15	16	46	125	120	60	70	40	42	88	32	10	10	46	25	20	6	100	3-M10	3-M10
CF-H-016	15	16	48	19	20	56	155	150	70	85	52	50	110	41	12	12	60	34	26	8	125	3-M12	3-M12
CF-H-030	20	22	65	28	30	80	205	200	100	120	68	66	144	56	16	15	78	46	35	10	165	3-M16	3-M16
CF-H-040	22	24	50	22	24	65	175	180	85	100	58	56	124	50	16	16	68	42	31	10	140	4-M16	4-M16
CF-H-050	20	22	65	28	30	80	205	200	100	120	68	66	144	56	16	15	78	46	35	10	165	4-M16	4-M16
CF-H-090	20	22	65	28	30	80	215	200	100	120	68	66	144	56	16	15	78	46	35	10	165	4-M16	4-M16
CF-H-110	25	28	63	28	30	80	225	230	100	120	68	66	144	56	18	18	78	46	35	10	180	4-M18	4-M18
CF-H-160	30	32	85	30	32	95	270	260	125	140	84	80	177	59	19	20	97	48	37	13	215	4-M20	4-M20
CF-H-240	40	42	115	40	42	120	330	320	160	180	100	100	213	65	19	20	113	54	40	13	260	4-M20	4-M20

*Pilot bores are to be drilled into the part. Minimum values for d1 and d2 are given by the minimum bore diameter values in the MIKI PULLEY standard hole-drilling standards and maximum values from the maximum allowable drilled bore diameters.

*The TK dimension is the bolt mounting pitch diameter of the fl ange hub or paired mounting part.

[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 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	Tolerance H7	Tolerance E9	-		Nominal bore diameter	Tolerance H7	Tolerance H9	-		Nominal bore diameter	Tolerance G7, F7	Tolerance H9	-
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	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	-	-	-	-	-
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	-	-	-	-	-
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	-	-	-	-	-
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	-	-	-	-	-
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	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	-	-	-	-	-
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	-	-	-	-	-
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	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	-	-	-	-	-
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	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	-	-	-	-	-
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	-	-	-	-	-
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	-	-	-	-	-
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	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	-	-	-	-	-
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	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	-	-	-	-	-
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	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	-	-	-	-	-
55	55^+0.030₀	15^+0.075_+0.032	60.0^+0.3₀	2-M10	55H	55^+0.030₀	16^+0.043₀	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^+0.3₀	2-M10	56H	56^+0.030₀	16^+0.043₀	60.3^+0.3₀	2-M10	-	-	-	-	-
60	60^+0.030₀	15^+0.075_+0.032	65.0^+0.3₀	2-M10	60H	60^+0.030₀	18^+0.043₀	64.4^+0.3₀	2-M10	60N	60^+0.060_+0.030	18^+0.043₀	64.4^+0.3₀	2-M10
63	63^+0.030₀	18^+0.075_+0.032	69.0^+0.3₀	2-M10	18H	63^+0.030₀	18^+0.043₀	67.4^+0.3₀	2-M10	-	-	-	-	-
65	65^+0.030₀	18^+0.075_+0.032	71.0^+0.3₀	2-M10	65H	65^+0.030₀	18^+0.043₀	69.4^+0.3₀	2-M10	65N	65^+0.060_+0.030	18^+0.043₀	69.4^+0.3₀	2-M10

*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.

*We can also machine splines. Please contact Miki Pulley.

[Set screw position (Cylinder hub)]

Unit [mm]

Cylindrical hub coupling size	Distance from edge［mm］
008	7
016	10
030	11
040	10
050・090・110	11
160・240	15

[Set screw position (Flange hub)]

Unit [mm]

Flange hub coupling size	Distance from edge［mm］
008	9
016	10
030	15
040	10
050・090・110	15
160・240	15

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Max. transmission torque 0.195N・m（Air gap 1mm）

Bore ranges 8mm～15mm

Basic Specifications

Max. nominal torque 1400 N･m

Pilot-bore additional processing range 10 mm to 80 mm

Operating temperature -40℃to 80℃/CF-B, -40℃ to 120℃/CF-B H

Basic Specifications

Max. nominal torque 50 N･m

Pilot-bore additional processing range 4 mm to 48 mm

Operating temperature -20℃ to 80℃

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Max. nominal torque 30N･m

Bore ranges 3 mm to 30 mm

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CF-H Models

Features of CF-H Models

CF-H Models Specifications

Structure and Materials

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