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General machinery of applying reducers | prev | next | back to the list
Cylindrical horizontal two-stage reducers such as 1Ц2У-100, 1Ц2У-125, 1Ц2У-160, 1Ц2У-200, 1Ц2У-250
Purpose.
   Cylindrical two-stage horizontal general machine industry applying reducers standard sizes 1Ц2У-100, 1Ц2У- 125, 1Ц2У- 200, 1Ц2У-250 are intended for variation of turning moment and rotating speeds.

Applying conditions of reducers.
  • Constant and variable load one direction and reverse;
  • Durable operation or with periodic stops;
  • Arbors rotating in any party;
  • Rotating speed output shafts should not exceed 1800 rev/min.;
  • Atmosphere types I and II at air dust content no more than 10 mg /m3.;
  • Climatic performances У, Т for accomodation category 1...3 and climatic performances УХЛ and O for accomodation categories 4.

       Example of conventional sign cylindrical two-stage reducers with interaxal distance of output stage 200 mm, gear ratio 20, alternative assembly 12, conical end of output shaft, climatic performances У1, У2, У3, УХЛ 4: reducer 1Ц2У-200-20-12 У1.
    		• Fig.1 Alternatives assembly I - with the arbors ends under boxs or parts of a clutch coupling;
    II - with the ends under boxs;
    III - with coreless by output reducers shaft 1Ц2У-200
       same with output shaft's end state of the tooth-type coupling parts: 1Ц2У-200-20-12У1.
       same with cylindrical output shaft's end and alternative assembly 12: 1Ц2У-200-20-12ЦУ1.
       same with coreless shaft and alternative assembly 16: 1Ц2У-200-20-16У1.
       same for reducer 1Ц2У-250 with asymmetrical coreless shaft : 1Ц2У-250-20-12 П У1.
       same climatic performance Т1, Т2, Т3, О4: 1Ц2У-200-20-12 Т У1.

    Tab.1 Characteristics.
    Parameter Standard size of a gearbox 1Ц2У-
    100 125 160 200 250
    Gear ratios 8; 10; 12,5; 16; 20; 25; 31,5; 40
    Nominal turning moment on the output shaft by long-term operation with a constant load, Н*м continuous (Н) ПВ=100% 315 630 1250 2500 5000
    Nominal turning moment on output shaft by reducer's operation in repeted short-term conditions, Н*м heavy (Т) ПВ=40% 315 630 1600 3150 6300
    average (С) ПВ=25% 2000 4000 8000
    easy (Л) ПВ=15% 2500 5000 10000
    Admissible radial cantilever load enclosed in middle of touchdown part, Н input shaft Fin continuous (Н) ПВ=100% 500 750 1000 2240 3150
    heavy (Т) ПВ=40% 1150 2500 3550
    average (С) ПВ=25% 1280 2800 4000
    easy (Л) ПВ=15% 1450 3150 4500
    output shaft Fout continuous (Н) ПВ=100% 4500 6300 9000 12500 18000
    heavy (Т) ПВ=40% 10000 14000 20000
    average (С) ПВ=25% 11200 16000 22400
    easy (Л) ПВ=15% 12500 18000 25000
    Efficiency, not less 0,97
    Reducer mass, kg, not more with the cast iron body - - 95 170 310
    with the aluminium body 21 31,5 57 - -

    Tab.2 Dimensional and mounting sizes.
    Standard size of reducer Interaxial distance L L1 l
    awт awб not more
    1Ц2У-100 100 80 387 325 136
    1Ц2У-125 125 80 450 375 160
    1Ц2У-160 160 100 560 475 200
    1Ц2У-200 200 125 690 580 243
    1Ц2У-250 250 160 825 730 290
    		Fig.2 Dimensional and mounting sizes.
    Table 2 prolongation
    Standard size of reducer l1 l2 l3 l4 l5 l6 H H1 h A A1 B B1 d
    Ч* Ал*
    1Ц2У-100 85 136 165 103 115 - 230 112 -
    20 +3
     -2
    		 290 109 155 145 15
    1Ц2У-125 106 145 206 112 136 - 272 132 -
    22 +3
     -2
    		 335 335 175 165 19
    1Ц2У-160 135 170 224 132 155 145 345 170 24±4
    28 +4
     -3
    		 425 425 206 195 24
    1Ц2У-200 165 212 280 160 190 185 425 212 30±4 - 515 515 243 230 24
    1Ц2У-250 212 265 335 195 230 224 530 265 32±4 - 670 670 290 280 28
    Ч* - with cast iron body; Ал* - with aluminium body

    Fig.3 Input and output conical shafts sizes.
    		 Fig.4 Cylindrical output shaft's sizes of reducer .

    Tab.3 Input and output shaft ends sizes, conical and cylindrical.
    Standard size of reducer shaft d1 d2 d3 d4, not more l1 l2 b h t
    1Ц2У-100 input 20 18,2 M12x1,25 40 50 36 4 4 2,5
    1Ц2У-125 20 18,2 M12x1,25 40 50 36 4 4 2,5
    1Ц2У-160 25 22,9 M16x1,5 45 60 42 5 5 3,0
    1Ц2У-200 30 27,1 M20x1,5 50 80 58 5 5 3,0
    1Ц2У-250 40 35,9 M24x2,0 63 110 82 10 8 5,0
    1Ц2У-100 output 35 32,10 M20x1,5 50 80 58 6 6 3,5
    1Ц2У-125 45 40,90 M30x2,0 75 110 82 12 8 5,0
    1Ц2У-160 55 50,90 M36x3,0 88 110 82 14 9 5,5
    1Ц2У-200 70 64,75 M48x3,0 100 140 105 18 11 7,0
    1Ц2У-250 90 83,50 M64x4,0 130 170 130 22 14 9,0

    Tab.4 Sizes of input shafts ends state a tooth-type coupling parts.   Fig.5 Sizes of input shafts ends state a tooth-type coupling parts.

    Standard size of reducer 1Ц2У-160 1Ц2У-200 1Ц2У-250
    m 4 5 4
    z 40 40 56
    b 20 25 35
    L 48 55 63
    L1, not less 20 20 16
    K 19 22 31
    B 38 50 50
    d* 72 80 120
    d** 95 105 170
     * - Maximum deviation on F8
    ** - Maximum deviation on F9     		 

    Fig.6 Mounting coreless shafts sizes of reducer 1Ц2У-250 (a) and 1Ц2У-200 (b), mm. I - average plain of reducer.



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