JLA radial key flange couplingDetailed product description：

Basic parameters and main dimensions of JLA radial key flange coupling (JB/ZQ4377-97)/mm

model	Nominal torque Tn/N·m		Shaft hole diameter done、 dtwo	Shaft hole length	Lone	B	D	Done	S	quality m/kg	moment of inertia I/kg·mtwo
				Jonetype
	D	E		L
JLA1	-	one thousand	40, 42, 45, 48, 50	eighty-four	one hundred and eight	eighty-seven	one hundred and seventy	ninety	ten	fifteen point five	zero point one eight two
JLA2	-	two thousand and five hundred	55, 56	eighty-four	one hundred and eight	one hundred	two hundred and fifteen	one hundred and twenty-five	twelve	thirty-five	zero point six one
			60, 63, 65, 70, 71	one hundred and seven	one hundred and forty
JLA3	-	five thousand	seventy-five	one hundred and seven	one hundred and forty	one hundred and twenty-three	two hundred and eighty-two	one hundred and eighty	fifteen	eighty-four	two point seven five
			80, 85, 90, 95	one hundred and thirty-two	one hundred and seventy
			one hundred	one hundred and sixty-seven	two hundred and twenty
JLA4	twelve thousand and five hundred	ten thousand	110, 120, 125	one hundred and sixty-seven	two hundred and twenty	one hundred and forty-six	three hundred and thirty	two hundred and twenty-five	twenty	one hundred and fifty	six point five one seven
JLA5	twenty-five thousand	twenty thousand	130, 140, 150	two hundred and two	two hundred and sixty-two	one hundred and seventy-four	four hundred and fifteen	two hundred and ninety	twenty	three hundred and eighty	twenty-one point eight
			one hundred and sixty	two hundred and forty-two	three hundred and eight
JLA6	fifty thousand	forty thousand	170, 180	two hundred and forty-two	three hundred and eight	two hundred and ten	five hundred	three hundred and sixty	twenty-five	five hundred and forty	fifty-seven point seven six two
			190, 200	two hundred and eighty-two	three hundred and fifty-six
JLA7	eighty thousand	sixty-three thousand	two hundred and twenty	two hundred and eighty-two	three hundred and fifty-six	two hundred and fifty-five	six hundred and ten	four hundred and fifty	twenty-five	nine hundred and ninety-two	one hundred and sixty-two point zero five
			240, 250	three hundred and thirty	four hundred and twenty-six

Note: 1. The maximum outer circle line speed of the coupling shall not exceed 50m/s.  
2. D - tangential key connection; E - Hook head wedge key connection.  
3. Mass and moment of inertia are approximate values calculated based on the minimum diameter and maximum length of the shaft hole.

JLA radial key flange coupling