PK Model

In belt-driven power transmission systems, a variable-pitch pulley is mounted on the drive shaft. By adjusting the distance between the drive and driven shafts, the belt pitch is forcibly altered to change the rotational speed. The use of wide-pitch variable-speed belts allows for a wide range of gear ratios and ensures high transmission capacity.

[Specifications]

Model Applicable Motor [kW] Gear Ratio Belt Transmission Capacity [kW] Weight [kg]
High-speed operation At medium speed At low speed
PK-150-14N-044 0.4 (4P) 1:3 1422V 1.5 1.0 0.4 3.2
PK-200-19N-074 0.75 (4P) 1:3 1922V 3.7 2.3 0.5 6.2
PK-200-24N-154 1.5 (4P) 1:3 1922V 3.7 2.3 0.5 6.2
PK-250-28N-224 2.2 (4P) 1:3 2926V 8.0 5.2 1.1 13
PK-250-28N-374 3.7 (4P) 1:3 2926V 8.0 5.2 1.1 13
PK-300-38N-554 5.5 (4P) 1:3 4430V 13 12 2.5 24
PK-300-38N-754 7.5 (4P) 1:3 4430V 13 12 2.5 24
PK-300-42N-1104 11 (4P) 1:3 4430V 13 12 2.5 24
PK-355-42N-1106 11 (6P) 1:2.5 4430V 16 11 5.5 58
PK-355-48N-1506 15 (6P) 1:2.5 4430V 16 11 5.5 58
PK-400-55N-1806 18.5 (6P) 1:2 4430V 18 15 9.8 66
  • If you are using a mobile stand for the PK-355 or 400, please contact us.

[Dimensions]

三木プーリの可変ピッチプーリPKモデルベルト式無段変速機寸法図 外形寸法および軸径寸法を示す寸法図
Unit [mm]
Model A P1 P2 L M D W U V max. P.D. min. P.D. Travel distance
PK-150-14N-044 150 19 28.5 120 81 14 5 16 30 144 48 75
PK-200-19N-074 200 23 35.5 160 95 19 6 21.5 40 192 64 101
PK-200-24N-154 200 23 35.5 160 95 24 8 27 50 192 64 101
PK-250-28N-224 250 31 49.5 210 126 28 8 31 60 240 80 126
PK-250-28N-374 250 31 49.5 210 126 28 8 31 60 240 80 126
PK-300-38N-554 305 50 76 300 143 38 10 41 80 290 96 152
PK-300-38N-754 305 50 76 300 143 38 10 41 80 290 96 152
PK-300-42N-1104 305 50 76 300 143 42 12 45 110 290 96 152
PK-355-42N-1106 355 54 81.5 355 214 42 12 45 110 343 137 162
PK-355-48N-1506 355 54 81.5 355 214 48 14 51.5 110 343 137 162
PK-400-55N-1806 400 51 77 355 214 55 16 59 110 388 194 152
  • Travel distance refers to the distance the motor moves to change gears.
三木プーリのPKモデル 可変ピッチプーリ(ベルト式無段変速機)ご注文時の型式構成説明図