Jaw Couplings Stepped Single Disc Clamp Type

■ Material specifications

Part	Material	Surface treatment	Accessories
Body	Aluminum alloy	Anodized finish	Hex socket bolt
Diaphragm	Stainless steel	—

Please follow the selection steps to , choose the type and parameters, and then place your order. Please specify the shaft bore diameter within the range of d₁ ≤ d₂.

Type (Type·D)	—	d1	—	d2
E-LDEN03-D44	—	8	—	10

Type		d1 and d2 selection (but d1 ≤ d2)																												L	⌀N	LF	S	F	Locking bolt
Type	D																																		M	Locking torque N.m
E-LDEN03-D
	34		5	6	6.35	7	8	9	9.525	10																				27.5	21.6	12.25	3.5	3.8	M3	1.5
	39			6			8	9	9.525	10	11	12																		34.5	25	15	4.5	5.0	M4	3.5
	44			6			8	9	9.525	10	11	12	12.7	13	14	15	16													34.5	29.6	15	4.5	5.0
	50									10	11	12	12.7	13	14	15	16	17	18	19	20									42	35	18.6	4.8	5.5	M5	8
	56									10		12	12.7	13	14	15	16	17	18	19	20									45	38	19.85	5.3	6.3
	68														14	15	16	17	18	19	20	22	24	25	28	30				53	46	23.35	6.3	7.5	M6	13
	82														14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	68	56	30	8.0	9.0	M8	28

■ Characteristic Values

Type		Permissible torque (N⋅m)	Permissible angular misalignment (°)	Permissible axial deviation (mm)	Permissible speed (RPM)	Static torsional stiffness (N.m/rad)	Moment of inertia (N.m)	Weight (g)
Type	D
E-LDEN03-D	34	2	1	±0.18	10000	1500	3.83 × 10-6	19
	39	4.5		±0.23		2450	7.5 × 10-6	52
	44	6.75		±0.27		3000	9.1 × 10-6	68.5
	50	15		±0.30		3800	2.5 × 10-5	110
	56	20		±0.36		4200	5.1 × 10-5	135
	68	50		±0.40	9000	6500	1.3 × 10-4	246
	82	75		±0.50	8000	8600	1.9 × 10-4	422

Eccentricity is not allowed for single-diaphragm types.
Eccentricity, angular deviation, and axial amplitude are all individual allowable values. If multiple types of deviations occur at the same time, the allowable value for each deviation is reduced to half of the original value.

■ Additional machining

Alterations	Keyway additional machining
Spec.	Specification method LK4 　　　　 RK4
Code	LK (left shaft)	RK (right shaft)

Shaft hole diameter d1 ·d2	b (keyway width)		t Keyway depth	Key nominal size b × h
	LK	RK
6–8	2	2	1	2 × 2
8–10	3	3	1.4	3 × 3
11–12	4	4	1.8	4 × 4
12.1–17	5	5	2.3	5 × 5
18–22	6	6	2.8	6 × 6
23–30	8	8	3.3	8 × 7
31–38	10	10		10 × 8