CF-A [O0] Bolt-Mounted Type

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 polygonal rubber elements with aluminum inserts at their vertices, each of which is firmly vulcanized and bonded. The O0 type is supplied as the rubber element only.

[Specifications]

CF-A-O0 Specifications
Model Torque Tolerance Maximum Rotational Speed
[min⁻¹]
Dynamic torsional spring constant
[N·m/rad]
Moment of
inertia [kg·m²]
Mass
[kg]
Price
[JPY]
Rated
[N·m]
Maximum
[N·m]
Permissible Variation
[N·m/10 Hz]
Eccentricity
[mm]
Angular Misalignment
[°]
Axial
[mm]
CF-A-001-O0-1360 10 25 ±4 0.5 3 ±2 10,000 1.47×10² 2.5×10⁻⁵ 0.1
CF-A-002-O0-1360 20 50 ±8 1 3 ±3 8,000 2.92×10² 1.3×10⁻⁴ 0.2
CF-A-004-O0-1360 40 100 ±16 1 3 ±3 7,000 7.59×10² 2.8×10⁻⁴ 0.2
CF-A-008-O0-1360 80 200 ±32 1 3 ±4 6500 1.44×10³ 7.6×10⁻⁴ 0.3
CF-A-012-O0-1360 120 300 ±48 1 2 ±4 6,500 4.38×10³ 8.3×10⁻⁴ 0.3
CF-A-016-O0-1360 160 400 ±64 1.5 3 ±5 6000 3.28×10³ 2.5×10⁻³ 0.7
CF-A-022-O0-1360 220 550 ±88 1.5 2 ±5 6000 8.26×10³ 2.7×10⁻³ 0.7
CF-A-025-O0-1360 250 630 ±100 1.5 3 ±5 5000 4.12×10³ 4.2×10⁻³ 0.8
CF-A-028-O0-1360 350 880 ±140 1.5 2 ±5 5,000 1.05×10⁴ 4.6×10⁻³ 1
CF-A-030-O0-1360 400 1000 ±160 1.5 3 ±5 4000 6.40×10³ 1.1×10⁻² 1.5
CF-A-050-O0-1360 600 1500 ±240 1.5 2 ±5 4000 1.48×10⁴ 1.2×10⁻² 1.7
CF-A-080-O0-1360 800 2000 ±320 1.5 2 ±4 4000 2.17×10⁴ 1.5×10⁻² 2.3
CF-A-090-O0-1360 900 2250 ±360 1.5 3 ±5 3600 1.37×10⁴ 3.8×10⁻² 3.2
CF-A-140-O0-1360 1400 3500 ±560 1.5 2 ±5 3600 2.90×10⁴ 4.2×10⁻² 3.7
CF-A-200-O0-1360 2000 5000 ±800 1.5 2 ±5 3200 6.08×10⁴ 7.8×10⁻² 5.5
CF-A-250-O0-1360 3000 8750 ±1250 1.5 2 ±5 3000 8.28×10⁴ 0.14 7.8
CF-A-400-O0-1360 5000 12,500 ±2000 1.5 2 ±5 2,800 1.25×10⁵ 0.24 11.5

  • 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.
  • The values for moment of inertia and mass are for cylindrical hubs and flanged hubs with a through-bore.

[Dimensions]

三木プーリのセンタフレックスCF-Aモデル CF-A-O0タイプ ゴム・樹脂カップリング寸法図(防振継手・衝撃吸収・産業用軸継手)
Unit [mm]
Model d1 d2 D1 D2 D3 N1 N2 L1 L2 L3 A B C E G1 G2 O P S TK M1 M2 CAD File No.
Pilot hole Minimum Max Pilot hole Min Max
CF-A-001 8 9 19 8 9 22 57 56 56 30 36 32 24 58 24 7 34 22 11 - 5 18 2 44 2-M6 2-M6 CF-A11
CF-A-002 10 11 28 9 10 30 86 85 85 40 45 30 28 62 8 20 10 14 12 4 68 2-M8 2-M8 CF-A12
CF-A-004 12 14 30 11 12 36 100 97 100 45 55 34 30 68 28 38 24 12 18.3 17 80 3-M8 3-M8 CF-A13
CF-A-008 38 15 16 46 122 120 120 60 70 40 42 86 32 10 44 28 14 20.5 20.5 100 3-M10 3-M10 CF-A14
CF-A-012 4-M10 4-M10 CF-A15
CF-A-016 15 16 48 19 20 56 150 150 150 70 85 52 50 108 42 12 58 36 18 25 23.5 6 125 3-M12 3-M12 CF-A16
CF-A-022 4-M12 4-M12 CF-A17
CF-A-025 55 65 170 170 170 85 100 58 56 120 46 14 64 40 20 26 26 140 3-M14 3-M14 CF-A18
CF-A-028 4-M14 4-M14 CF-A19
CF-A-030 20 22 65 28 30 80 200 200 200 100 120 68 66 142 58 16 76 50 25 33 34.5 8 165 3-M16 3-M16 CF-A21
CF-A-050 4-M16 4-M16 CF-A22
CF-A-080 205 205 80 150 65 84 61 30.5 4 CF-A23
CF-A-090 30 32 85 30 32 95 260 260 260 125 140 84 80 172 70 19 92 62 31 46 45 8 215 3-M20 3-M20 CF-A24
CF-A-140 4-M20 4-M20 CF-A25
CF-A-200 35 38 105 35 38 110 300 300 300 145 160 94 90 192 80 102 72 36 250 CF-A27
CF-A-250 40 42 115 40 42 120 340 340 340 160 180 100 100 208 85 108 77 22.5 32 60 60 280 8-M20 CF-A26
CF-A-400 130 370 370 370 170 200 125 125 260 105 29 135 95 28.5 38 70.5 67 10 300 4-M24 CF-A28
  • The values in the table above represent the dimensions after the rubber body has been assembled; therefore, the N1, TK, D1, and D2 dimensions prior to assembly differ from those shown in the table.
  • The TK dimension refers to the bolt mounting pitch diameter of the flange hub or mating mounting surface.
  • The designation for M1 and M2 bolts is based on the quantity and thread size.
  • When using hex socket head cap screws with the CF-A-400, you must use the special flat washers included with the rubber body.
三木プーリのセンタフレックスCF-Aモデル O0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