Sakai LCS-M Series Precision Spring Coupling

Manufacturer: Sakai Manufacturing Co., Ltd.
Model: LCS-M Series

Feature

1/10 tapered shaft specification and bolt clamp specification shaft fastening are combined.

(Dimensions: mm)

Model number	d1 (Clamp Side Shaft Diameter)	d2 (Taper Side Shaft Diameter)	W	H	A	E1	E2	C	F	L	J1	J2	G	S1	S2	T	M
LCS-55M	10~19	11	4	12.3	55	38	38	18	4	44.8	20	20	4.8	22.4	22.4	17	M5
LCS-65M	12~25	11	4	12.3	65	44	44	18	8.5	54.5	24.5	24.5	5.5	27.25	27.25	20	M6
LCS-65M	12~25	16	5	17.4	65	44	38	28	10	70	24.5	40	5.5	27.25	42.75	20	M6
LCS-80M	12~35	16	5	17.4	80	57	48	28	10	74.8	29	40	5.8	31.9	42.9	20	M8/M6
LCS-90M	17~35	16	5	17.4	90	63	52	28	10	79.5	31	40	8.5	35.25	44.25	29	M8

Model number	Allowable torque N・m	Allowable eccentricity mm	Allowable deviation angle °	Allowable axial displacement mm	Maximum rotation speed min^-1	Torsional stiffness		Axial spring constant N/mm	Moment of inertia kg・m2	Mass kg
Model number	Allowable torque N・m	Allowable eccentricity mm	Allowable deviation angle °	Allowable axial displacement mm	Maximum rotation speed min^-1	Overall N・m/rad	Leaf spring only N・m/rad	Axial spring constant N/mm	Moment of inertia kg・m2	Mass kg
LCS-55M	25	0.02	1	±0.39	10000	2.94×10^-4	5.00×10⁴	59	0.93×10^-4	0.34
LCS-65M	40	0.02	1	±0.46	10000	5.88×10^-4	1.30×10⁵	124	2.15×10^-4	0.56
LCS-65M	40	0.02	1	±0.46	10000	5.88×10^-4	1.30×10⁵	124	2.19×10^-4	0.60
LCS-80M	80	0.02	1	±0.58	10000	1.18×10^-5	2.04×10⁵	74	5.40×10^-4	1.00
LCS-90M	180	0.02	1	±0.64	10000	1.76×10^-5	3.90×10⁵	89	1.01×10^-3	1.43

Clamp Tightening Part Standard Shaft Hole Diameter: d₁

Model number	10	11	12	13	14	15	16	17	18	19	20	22	24	25	28	30	32
LCS-55M	◆	◆	◆	◆	●	●	●	●	●	●
LCS-65M			◆	◆	◆	◆	●	●	●	●	●	●	●	●
LCS-80M			◆	◆	◆	◆	●	●	●	●	●	●	●	●	●	●	●
LCS-90M								●	●	●	●	●	●	●	●	●	●

The allowable radial direction displacement indicates the case the eccentricity and tilt angle are zero.
Please insert the shaft up to the marking line J or J₂ correctly.
The moment of inertia and mass are shown for the maximum shaft hole diameter.
The recommended shaft tolerance is h6. (For a shaft diameter of 35 mm, it corresponds to a tolerance of +0.010).
The hub shape (φEₑ) on the taper side of the shaft may differ depending on the manufacturing method and mold.
The taper shaft diameter can be made to 14 mm.
The maximum rotational speed does not consider dynamic balance.
The ◆ symbol indicates that a center nut cannot be used.