Main » Reducers and motor-reducers » Special crane reducers » Special crane reducers B-100 (F) … B-250 (F)

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

They allow the mechanism to function even under the highest loads

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 size	Gear ratio	Rotational frequency input shaft, min^-1	Nominal torque, on the output shaft, N•t
В-100, В-100F	10; 12,5; 16; 20; 25; 31,5; 40	1000	172 … 563
В-125, В-125F	10; 12,5; 16; 20; 25; 31,5; 40; 50		344 … 1250
В-160, В-160F	10; 12,5; 16; 20; 25; 31,5; 40; 50		668 … 2500
В-200, В-200F	10; 12,5; 16; 20; 25; 31,5; 40; 50; 63; 80; 100		1375 … 5000
В-250, В-250F	10; 12,5; 16; 20; 25; 31,5; 40; 50; 63; 80; 100		2750 … 10000

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

Type size	І_B	І_p	А_Т	A₁	A₂	A₃	А₄	Х	ch	L	L₁	L₂	L₃	L₄	М	d
Type size	Sizes, mm
В-100	80	100	100	170	135	60	55	254	40	470	170	235	71	300	100	11
В-125	80	125	125	185	180	80	60	316	60	545	200	263	71,5	320	125	14
В-160	100	160	160	215	220	80	75	390	80	692	230	295	92	360	160	18

Overall and connecting dimensions B-200, B-250

Type size	І_B	І_P	А_Т	A₁	A₂	B	Н	ch	L	L₁	L₂	L₃	М	d
Type size	Sizes, mm
В-200	125	160	200	100	67	277	450	70	825	210	420	130	190	22
В-250	160	200	250	120	79	322	552	80	1015	240	480	137,5	240	22

Dimensions of shaft ends

Type size	d	d₁	y	y₁	b	t	d₂	d 3xH8xm _{_}	L	y₂	y₃	y₄
Type size	Sizes, mm
В-100, В-100F	25	36	60	42	5	13,45	50	35хН8х2	174	35	54	25
В-125, В-125F	25	36	60	42	5	13,45	50	45xH8x2	204	38	78	25
В-160, В-160F	28	36	60	42	5	14,95	65	65xH8x2	236	42	78	37
В-200, В-200F	35	42	80	58	6	18,55	75	70хН8х2,5	240	60	32	44
В-250, В-250F	38	50	80	58	6	20,05	95	90хН8х2,5	286	70	60	43

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