CF-A [OG] Custom Length, Low-Speed Rotation Type

三木プーリのセンタフレックスCF-Aモデル CF-A-OGタイプ ゴム・樹脂カップリング製品画像（防振・衝撃吸収・軸ずれ補正軸継手）
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Power is transmitted via pre-compressed rubber. It excels at absorbing vibrations and shocks, and also reduces noise from machinery. The elastic rubber component consists of a polygonal rubber body with aluminum inserts embedded at its vertices.This type features two CF-A models clamping a floating shaft of adjustable total length, allowing for a wide tolerance range.

[Specifications]

Model Torque Tolerance Maximum Rotational Speed Dynamic torsional spring constant Moment of inertia Mass Price of pre-drilled products
Standard Maximum Permissible Variation Eccentricity Angular Deviation Axial
[N·m] [N·m] [N·m/10 Hz] [mm] ［°］ [mm] [min⁻¹] [N·m/rad] [kg·m²] [kg] [JPY]
CF-A-001-OG-1360 10 25 ±4 24.8 3 ±2 1000 7.35×10¹ 3.5×10⁻⁴ 1.4
CF-A-002-OG-1360 20 50 ±8 24.7 3 ±3 1000 1.46×10² 1.5×10⁻³ 2.5
CF-A-004-OG-1360 40 100 ±16 24.5 3 ±3 1000 3.80×10² 2.9×10⁻³ 3.3
CF-A-008-OG-1360 80 200 ±32 24.3 3 ±4 1000 7.20×10² 8.0×10⁻³ 6.2
CF-A-012-OG-1360 120 300 ±48 16.2 2 ±4 1000 2.19×10³ 8.4×10⁻³ 6.4
CF-A-016-OG-1360 160 400 ±64 23.7 3 ±5 1000 1.64×10³ 2.1×10⁻² 10.6
CF-A-022-OG-1360 220 550 ±88 15.8 2 ±5 1000 4.13×10³ 2.3×10⁻² 11.0
CF-A-025-OG-1360 250 630 ±100 23.5 3 ±5 1000 2.06×10³ 4.2×10⁻² 15.9
CF-A-028-OG-1360 350 880 ±140 15.6 2 ±5 1000 0.53×10⁴ 4.4×10⁻² 16.5
CF-A-030-OG-1360 400 1000 ±160 22.7 3 ±5 1000 3.20×10³ 9.6×10⁻² 25.8
CF-A-050-OG-1360 600 1500 ±240 15.2 2 ±5 1000 7.40×10³ 0.1 26.6
CF-A-080-OG-1360 800 2000 ±320 15.1 2 ±4 1000 1.09×10⁴ 0.11 28.7
CF-A-090-OG-1360 900 2250 ±360 22.1 3 ±5 1000 6.85×10³ 0.3 47.8
CF-A-140-OG-1360 1400 3500 ±560 14.7 2 ±5 1000 1.45×10⁴ 0.31 49.3
CF-A-200-OG-1360 2000 5000 ±800 14.4 2 ±5 1000 3.04×10⁴ 0.55 74.3
CF-A-250-OG-1360 3000 8750 ±1250 14.2 2 ±5 1000 4.14×10⁴ 0.99 97.7
CF-A-400-OG-1360 5000 12,500 ±2000 13.4 2 ±5 1000 6.25×10⁴ 1.77 164.6
  • The values in the table above apply to flange hubs with a bore diameter of L=500. (Prices remain the same for lengths up to L=600 mm.)
  • The maximum rotational speed does not take dynamic balance into account.
  • As a general rule, the dynamic torsional spring constant is approximately 1.3 times the static torsional spring constant.

[Dimensions]

三木プーリのセンタフレックスCF-Aモデル CF-A-OGタイプ ゴム・樹脂カップリング寸法図（防振・衝撃吸収・軸ずれ補正軸継手）
Unit [mm]
Model d2 D3 N2 L2 A B R E G1 G2 S TK M1 M2
Pilot hole Minimum Max
CF-A-001-OG-1360 8 9 22 56 36 24 24 7 30 22 11 - 2 44 2-M6 2-M6
CF-A-002-OG-1360 9 10 30 85 45 28 24 8 40 20 10 - 4 68 2-M8 2-M8
CF-A-004-OG-1360 11 12 36 100 55 30 28 8 45 24 12 - 4 80 3-M8 3-M8
CF-A-008-OG-1360 15 16 46 120 70 42 32 10 60 28 14 - 4 100 3-M10 3-M10
CF-A-012-OG-1360 15 16 46 120 70 42 32 10 60 28 14 - 4 100 4-M10 4-M10
CF-A-016-OG-1360 19 20 56 150 85 50 42 12 70 36 18 - 6 125 3-M12 3-M12
CF-A-022-OG-1360 19 20 56 150 85 50 42 12 70 36 18 - 6 125 4-M12 4-M12
CF-A-025-OG-1360 19 20 65 170 100 56 46 14 85 40 20 - 6 140 3-M14 3-M14
CF-A-028-OG-1360 19 20 65 170 100 56 46 14 85 40 20 - 6 140 4-M14 4-M14
CF-A-030-OG-1360 28 30 80 200 120 66 58 16 100 50 25 - 8 165 3-M16 3-M16
CF-A-050-OG-1360 28 30 80 200 120 66 58 16 100 50 25 - 8 165 4-M16 4-M16
CF-A-080-OG-1360 28 30 80 200 120 66 65 16 100 61 30.5 - 4 165 4-M16 4-M16
CF-A-090-OG-1360 30 32 95 260 140 80 70 19 125 62 31 - 8 215 3-M20 3-M20
CF-A-140-OG-1360 30 32 95 260 140 80 70 19 125 62 31 - 8 215 4-M20 4-M20
CF-A-200-OG-1360 35 38 110 300 160 90 80 19 145 72 36 - 8 250 4-M20 4-M20
CF-A-250-OG-1360 40 42 120 340 180 100 85 19 160 77 22.5 32 8 280 4-M20 8-M20
CF-A-400-OG-1360 40 42 130 370 200 125 105 29 170 95 28.5 38 10 300 4-M24 8-M20
  • The pilot hole is a drill hole. The minimum values for d1 and d2 indicate the minimum hole diameters specified in our standard hole machining specifications, while the maximum values indicate the largest hole diameters that can be machined.
  • The designation for M1 and M2 bolts consists of the quantity followed by the thread size; the quantity refers to the number of bolts on one side.
  • The L dimension must be 1000 mm or less. Additionally, the minimum L dimension must allow sufficient space for the installation of an M1 bolt.

[Standard Hole Drilling Specifications]

？
Keyway and Hole Diameter Chart
Unit [mm]
Compliant with JIS B 1301 1959 (Type
2)		 Compliant with New JIS Standard H9
JIS B 1301 1996		 Motor Standard
JIS C 4210 2001
Nominal Bore 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 Tolerance H7, H8 Tolerance E9 － ― Nominal hole diameter Tolerance H7 Tolerance H9 ― － Nominal hole diameter Tolerance G7, F7 Tolerance H9 ― －
9 9+0.0220 － － 2-M4 － － － － － － － － － －
10 10+0.0220 － － 2-M4 － － － － － － － － － －
11 11 + 0.0180 － － 2-M4 － － － － － － － － － －
12 12 + 0.0180 4 + 0.05 + 0.02 13.5 + 0.30 2-M4 12H 12 + 0.0180 4 + 0.030 13.8 + 0.30 2-M4 － － － － －
14 14 + 0.0180 5 + 0.05 + 0.02 16.0 + 0.30 2-M4 14H 14 + 0.0180 5 + 0.030 16.3 + 0.30 2-M4 14N 14 + 0.024 + 0.006 5 + 0.030 16.3 + 0.30 2-M4
15 15 + 0.0180 5 + 0.05 + 0.02 17.0 + 0.30 2-M4 15H 15 + 0.0180 5 + 0.030 17.3 + 0.30 2-M4 － － － － －
16 16 + 0.0180 5 + 0.05 + 0.02 18.0 + 0.30 2-M4 16H 16 + 0.0180 5 + 0.030 18.3 + 0.30 2-M4 － － － － －
17 17 + 0.0180 5 + 0.05 + 0.02 19.0 + 0.30 2-M4 17H 17 + 0.0180 5 + 0.030 19.3 + 0.30 2-M4 － － － － －
18 18 + 0.0180 5 + 0.05 + 0.02 20.0 + 0.30 2-M4 18H 18 + 0.0180 6 + 0.030 20.8 + 0.30 2-M5 － － － － －
19 19 + 0.0210 5 + 0.05 + 0.02 21.0 + 0.30 2-M4 19H 19 + 0.0210 6 + 0.030 21.8 + 0.30 2-M5 19N 19 + 0.028 + 0.007 6 + 0.030 21.8 + 0.30 2-M5
20 20 + 0.0210 5 + 0.05 + 0.02 22.0 + 0.30 2-M4 20H 20 + 0.0210 6 + 0.030 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 + 0.030 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 + 0.02 8 + 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 + 0.06 1 + 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 + 0.06 1 + 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 + 0.06 1 + 0.025 41.5 + 0.30 2-M8 38H 38 + 0.0250 10 + 0.0360 41.3 + 0.30 2-M8 38N 38 + 0.05 + 0.025 10 + 0.0360 41.3 + 0.30 2-M8
40 40 + 0.0250 10 + 0.06 1 + 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 + 0.05 + 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 + 0.05 + 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 + 0.030 15 + 0.075 + 0.032 60.0 + 0.30 2-M10 55H 55 + 0.030 16 + 0.0430 59.3 + 0.30 2-M10 55N 55 + 0.06 + 0.03 16 + 0.0430 59.3 + 0.30 2-M10
56 56 + 0.030 15 + 0.075 + 0.032 61.0 + 0.30 2-M10 56H 56 + 0.030 16 + 0.0430 60.3 + 0.30 2-M10 － － － － －
60 60 + 0.030 15 + 0.075 + 0.032 65.0 + 0.30 2-M10 60H 60 + 0.030 18 + 0.0430 64.4 + 0.30 2-M10 60N 60 + 0.06 + 0.03 18 + 0.0430 64.4 + 0.30 2-M10
63 63 + 0.030 18 + 0.075 + 0.032 69.0 + 0.30 2-M10 63H 63 + 0.030 18 + 0.0430 67.4 + 0.30 2-M10 － － － － －
65 65 + 0.030 18 + 0.075 + 0.032 71.0 + 0.30 2-M10 65H 65+0.030 18 + 0.0430 69.4 + 0.30 2-M10 65N 65 + 0.06 + 0.03 18 + 0.0430 69.4 + 0.30 2-M10

  • All specifications for diameters of 11 mm or less are identical to those listed in the "Old JIS Standards" column.
  • The set screw and the keyway will not be 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 machining other than those listed here, please refer to the technical documentation.
  • We also offer spline machining. Please contact us for more information.
三木プーリのセンタフレックスCF-Aモデル OGタイプ 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 (cylindrical hub)]

Unit [mm]
Cylindrical hub coupling size Distance from end face [mm]
001 6
002・004 6
008・012 7
016, 022, 025, 028 10
030, 050, 080 11
090, 140 13
200, 250, 400 13

[Location of the set screw (flange hub)]

Unit [mm]
Flange hub side coupling size Distance from end face [mm]
001 6
002・004 7
008, 012 9
016, 022, 025, 028 10
030, 050, 080 15
090, 140 15
200, 250, 400 16