LN type core elastic couplingDetailed product description：

Basic parameters and main dimensions of LN core type elastic coupling (GB/T10614-89)/mm

model

Nominal torque Tn/N·m

Instantaneous maximum Torque Tmax /N·m

Permissible rotational speed [n]/r·min-1

Shaft hole diameter d、dz

Shaft hole length

D

t

Moment of inertia I /kg·m2

quality m/kg

Y-shaped

J1 and Z1 types

Steel

Iron

L

L

L1

LN1 (N1)

six point three

twenty

five thousand

four thousand

10. 11

twenty-five

—

22*

seventy

three

zero point zero zero zero six

one point one

12. 14

thirty-two

27*

16. 18, 19

forty-two

thirty

20. 22

fifty-two

thirty-eight

LN2 (N2)

twenty-five

eighty

three thousand and five hundred

16. 18, 19

forty-two

forty-two

thirty

eighty-five

zero point zero zero one five

two

20. 22, 24

fifty-two

fifty-two

thirty-eight

25, 28

sixty-two

—

forty-four

LN3 (N3)

sixty-three

one hundred and eighty

four thousand and five hundred

three thousand

20. 22, 24

fifty-two

fifty-two

thirty-eight

one hundred and five

zero point zero zero three nine

three point seven

25, 28

sixty-two

sixty-two

forty-four

30, 32, 35

eighty-two

—

sixty

LN4 (N4)

one hundred

three hundred and fifteen

twenty-four

fifty-two

fifty-two

thirty-eight

one hundred and twenty

zero point zero zero eight seven

six

25, 28

sixty-two

sixty-two

forty-four

30, 32, 35, 38

eighty-two

eighty-two

sixty

40, 42

one hundred and twelve

—

eighty-four

LN5 (N5)

one hundred and sixty

five hundred

four thousand

twenty-eight

sixty-two

sixty-two

forty-four

one hundred and forty

zero point one six nine

nine

30, 32, 35, 38

eighty-two

eighty-two

sixty

40, 42, 45, 48

one hundred and twelve

—

eighty-four

LN6 (N6)

two hundred and fifty

seven hundred and ten

three thousand and six hundred

two thousand and five hundred

32, 35, 38

eighty-two

eighty-two

sixty

one hundred and sixty

zero point zero three five four

fourteen point one

40, 42, 45, 48, 50, 55, 56

one hundred and twelve

—

eighty-four

LN7 (N7)

four hundred

one thousand one hundred and twenty

three thousand and two hundred

thirty-eight

eighty-two

eighty-two

sixty

one hundred and eighty

four

zero point zero five seven five

sixteen point eight

40, 42, 45, 48, 50, 55, 56

one hundred and twelve

—

eighty-four

sixty

one hundred and forty-two

one hundred and seven

LN8 (N8)

six hundred and thirty

one thousand and eight hundred

three thousand

two thousand

45, 48, 50, 55, 56

one hundred and twelve

one hundred and twelve

eighty-four

two hundred and forty

zero point zero nine seven one

twenty-four point one

60, 63, 65, 70

one hundred and forty-two

—

one hundred and seven

LN9 (N9)

nine hundred

two thousand two hundred and forty

two thousand and eight hundred

48, 50, 55, 56

one hundred and twelve

one hundred and twelve

eighty-four

two hundred and twenty

zero point one four one two

thirty point seven

60, 63, 65, 70, 71, 75

one hundred and forty-two

—

one hundred and seven

LN10 (N10)

one thousand two hundred and fifty

three thousand one hundred and fifty

two thousand and four hundred

one thousand and six hundred

55, 56

one hundred and twelve

one hundred and twelve

eighty-four

two hundred and forty

five

zero point two three zero four

thirty-eight point five

60, 63, 65, 70, 71, 75

one hundred and forty-two

one hundred and forty-two

one hundred and seven

eighty

one hundred and seventy-two

—

one hundred and thirty-two

LN11 (N11)

one thousand and six hundred

four thousand

two thousand and four hundred

one thousand and six hundred

60, 63, 65, 70, 71, 75

one hundred and forty-two

one hundred and forty-two

one hundred and seven

two hundred and fifty

five

zero point two eight eight nine

forty-five point two

80, 85, 90

one hundred and seventy-two

—

one hundred and thirty-two

LN12 (N12)

two thousand and five hundred

six thousand and three hundred

two thousand

70, 71, 75

one hundred and forty-two

one hundred and forty-two

one hundred and seven

three hundred and twenty

six

zero point seven nine zero two

seventy-six point two

80, 85, 90, 95

one hundred and seventy-two

one hundred and seventy-two

one hundred and thirty-two

LN13 (N13)

four thousand

ten thousand

one thousand and eight hundred

80, 85, 90, 95

one hundred and seventy-two

one hundred and seventy-two

one hundred and thirty-two

three hundred and sixty

seven

one point four seven one one

one hundred and eighteen

100, 110, 120

two hundred and twelve

two hundred and twelve

one hundred and sixty-seven

LN14 (N14)

eight thousand

sixteen thousand

one thousand and six hundred

one thousand and four hundred

100, 110, 120, 125

two hundred and twelve

two hundred and twelve

one hundred and sixty-seven

four hundred and twenty

seven

two point nine three one two

one hundred and seventy-one point six

130, 140

two hundred and fifty-two

—

two hundred and two

Note: The length of the shaft hole marked with * is only applicable to J1 type shaft holes. For Z1 type shaft holes, 22 should be changed to 17 and 27 should be changed to 20.  
2. The axial hole type can be selected as needed.  
3. The rotational inertia and mass of the coupling are the approximate values for calculating the largest steel half coupling among various models.  
N1-N14 are the code specifications for elastic components.