Basic dimensions and parameters of NYD65~NYD200 type backstop sleeve:
| Model (NYD) |
Rated reverse torque Te N.m |
Aperture range d mm |
Maximum speed of inner circle r/min |
Idle resistance torque N.m |
structural dimensions |
Maximum weight Kg |
| A |
B |
D |
H |
h1 |
h |
Φ |
L |
L1 |
| NJ(NYD)65 |
one thousand and six hundred |
50-65 |
one hundred and fifty |
four |
fifty |
six |
one hundred and sixty |
two hundred and twenty-six |
thirty |
sixteen |
thirteen point five |
eighty-five |
one hundred and six |
thirteen point five |
| NJ(NYD)75 |
two thousand and five hundred |
60-75 |
five |
sixty-five |
six |
one hundred and seventy |
two hundred and sixty-nine |
thirty-five |
nineteen |
sixteen point five |
eighty-five |
one hundred and six |
sixteen point one |
| NJ(NYD)85 |
six thousand |
70-85 |
eight |
ninety-five |
nine |
two hundred and ten |
three hundred and twenty-nine |
forty-five |
twenty-nine |
twenty point five |
one hundred and ten |
one hundred and thirty-five |
twenty-nine point two |
| NJ(NYD)95 |
eight thousand |
80-95 |
ten |
one hundred and five |
nine |
two hundred and thirty |
three hundred and eighty-two |
fifty-five |
thirty-two |
twenty point five |
one hundred and ten |
one hundred and thirty-eight |
thirty-seven point two |
| NJ(NYD)110 |
eleven thousand |
90-110 |
fifteen |
one hundred and ten |
twelve |
two hundred and seventy |
four hundred and twenty-five |
sixty |
forty |
twenty-six |
one hundred and ten |
one hundred and forty-one |
forty-six point one |
| NJ(NYD)130 |
sixteen thousand |
100-130 |
one hundred |
twenty |
one hundred and twenty |
twelve |
three hundred and twenty |
five hundred and six |
sixty-five |
thirty-six |
twenty-six |
one hundred and thirty |
one hundred and sixty-one |
eighty-two point eight |
| NJ(NYD)160 |
twenty-five thousand |
120-160 |
thirty-five |
one hundred and twenty |
twenty |
three hundred and sixty |
six hundred and twelve |
sixty-five |
thirty-two |
thirty-one |
one hundred and forty |
one hundred and eighty-three |
one hundred and twenty-five |
| NJ(NYD)200 |
thirty-eight thousand |
160-200 |
forty-five |
one hundred and thirty |
twenty |
four hundred and thirty |
six hundred and twenty-three |
seventy |
forty-three |
forty-one |
one hundred and sixty |
two hundred and seven |
one hundred and eighty |
Note:
1. Hole tolerance H7 (GB1800~1804-79), recommended shaft tolerance is h6, fit tolerance is H7/h6, keyway is made according to the Js9 standard of GB1095-79 and the 7-9 level standard of GB1184-75;
2. Please indicate the aperture and dimensional tolerances on the purchase order, otherwise process according to the standard fit tolerance H7;
3. Please choose priority aperture: 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 110, 120, 130

Basic dimensions and parameters of NYD220~NYD450 type backstop:
| Model (NYD) |
Rated reverse torque Te N.m |
Aperture range d mm |
Maximum speed of inner circle r/min |
Idle resistance torque N.m |
structural dimensions |
Maximum weight Kg |
| A |
B |
D |
H |
h |
L |
L1 |
| NJ(NYD)220 |
fifty thousand |
160-220 |
eighty |
seventy-five |
two hundred and thirty-eight |
two hundred and fifty-nine |
five hundred |
eight hundred and twenty |
eighty |
two hundred and thirty |
three hundred and three |
three hundred and fifty-one |
| NJNJ(NYD)250 |
ninety thousand |
180-250 |
fifty |
ninety-five |
two hundred and eighty-eight |
three hundred and twenty-three |
six thousand |
one thousand |
one hundred |
two hundred and ninety |
three hundred and sixty-seven |
six hundred and seventy-five |
| NJ(NYD)270 |
one hundred and twenty-five thousand |
200-270 |
one hundred |
two hundred and ninety-eight |
three hundred and twenty-three |
six hundred and fifty |
one thousand and one hundred |
one hundred and ten |
two hundred and ninety |
three hundred and sixty-seven |
seven hundred and thirty-seven |
| NJ(NYD)300 |
one hundred and eighty thousand |
230-300 |
one hundred and ten |
three hundred and fifty-six |
three hundred and thirty-five |
seven hundred and eighty |
one thousand and three hundred |
one hundred and thirty-five |
two hundred and ninety |
three hundred and ninety-two |
one thousand one hundred and twenty-three |
| NJ(NYD)320 |
two hundred and seventy thousand |
250-320 |
one hundred and forty |
three hundred and eighty-six |
three hundred and forty-five |
eight hundred and fifty |
one thousand and five hundred |
one hundred and thirty-five |
three hundred and twenty |
four hundred and twelve |
one thousand four hundred and twenty-five |
| NJ(NYD)350 |
three hundred and twenty thousand |
250-350 |
one hundred and sixty |
four hundred and fourteen |
three hundred and sixty |
nine hundred and thirty |
one thousand and six hundred |
one hundred and thirty-five |
three hundred and sixty |
four hundred and twenty-six |
one thousand nine hundred and fifty-five |
| NJ(NYD)420 |
five hundred and twenty thousand |
320-420 |
two hundred and twenty |
four hundred and seventy-four |
four hundred and eighty-four |
one thousand and thirty |
one thousand and eight hundred |
one hundred and sixty-five |
four hundred and fifty |
five hundred and fifty |
two thousand nine hundred and thirty |
| NJ(NYD)450 |
seven hundred thousand |
350-450 |
two hundred and fifty |
five hundred and twenty-six |
four hundred and ninety-four |
one thousand and ninety |
two thousand |
one hundred and sixty-five |
four hundred and eighty |
five hundred and seventy-four |
three thousand three hundred and eighty |
Note: 1. Hole tolerance H7 (GB1800~1804-79), recommended shaft tolerance is h6, fit tolerance is H7/h6, keyway is made according to the Js9 standard of GB1095-79 and the 7-9 level standard of GB1184-75; 2. Please indicate the aperture and dimensional tolerances on the purchase order, otherwise process according to the standard fit tolerance H7; 3. Please choose priority aperture: 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 110, 120, 130
