Special crane reducers B-100 (F) … B-250 (F)

They allow the mechanism to function even under the highest loads

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The B-type three-stage vertical crane reducer (B-100, B-125, B-160, B-200 and B-250) is intended for operation in a vertical and inclined position on the movement mechanisms of cranes and crane trolleys. The calculated efficiency factor is 0.94. At the request of the client, the mechanism on the flange (F) is produced.

This type of gearbox is used in connection with crane equipment or lifting devices. The main task is to increase the torque and reduce the rotation frequency when the high-speed, low-speed and intermediate shafts are vertically positioned relative to each other.

Conditions of operation of reducers:

  • work in repeated short-term mode, i.e. with variable loads with periodic stops;
  • the duration of non-stop work is slightly more than 30 minutes;
  • load of one direction and reversible;
  • rotation of shafts in any direction;
  • the rotation frequency of the input shaft is up to 1000 rpm, with a limitation of the peripheral speed of the gears – 12 m/s;
  • non-aggressive environment, atmosphere of types I and II according to GOST 15150 with air dust content of no more than 10 mg/m³;
  • climatic versions – U and T for accommodation categories 2, 3 and 4 according to GOST 15150.

Technical characteristics of type reducers

Type sizeGear ratioRotational frequency
input shaft, min-1		Nominal torque,
on the output shaft, N•t
В-100, В-100F10; 12,5; 16; 20; 25; 31,5; 401000172 … 563
В-125, В-125F10; 12,5; 16; 20; 25; 31,5; 40; 50344 … 1250
В-160, В-160F668 … 2500
В-200, В-200F10; 12,5; 16; 20; 25;
31,5; 40; 50; 63; 80; 100		1375 … 5000
В-250, В-250F2750 … 10000

Overall and connecting dimensions B-100, I-125, NA-160

Type size ІBІpАТA1A2A3А4ХchLL1L2L3L4Мd
Sizes, mm
В-100801001001701356055254404701702357130010011
В-1258012512518518080603166054520026371,532012514
В-1601001601602152208075390806922302959236016018

Overall and connecting dimensions B-200, B-250

Type sizeІBІPАТA1A2BНchLL1L2L3Мd
Sizes, mm
В-200125160200100672774507082521042013019022
В-25016020025012079322552801015240480137,524022

Dimensions of shaft ends

Type sizedd1yy1btd2d 3xH8xm _Ly2y3y4
Sizes, mm
В-100, В-100F25366042513,455035хН8х2174355425
В-125, В-125F25366042513,455045xH8x2204387825
В-160, В-160F28366042514,956565xH8x2236427837
В-200, В-200F 35428058618,557570хН8х2,5240603244
В-250, В-250F38508058620,059590хН8х2,5286706043

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