Sakai TCD-B Series Precision Spring Coupling

Manufacturer: Sakai Manufacturing Co., Ltd.
Model: TCD-B Series

A proprietary spring improves torque transmission capability.
It is effective for downsizing and cost reduction.

Dimensions

Type SS

Type LS

TCD-120B

Improved torque transmission capacity with unique leaf spring.
Effective for downsizing and cost reduction.
Unique laminated leaf spring with excellent precision and rigidity is used as the flexure material. Two sets of laminated leaf springs are bolted to the hub, creating a non-backlash structure with high flexibility, achieving high-precision, high-torque rotation transmission.
Two sets of laminated leaf springs, sandwiched between spacers, absorb eccentricity, angular misalignment, and axial displacement. This precision shaft coupling offers versatility, flexibility, easy centering, and precise rotation transmission.

(Dimensions: mm)

Model number	d1 / d2	A	E	P	L	S	J	G	M
TCD-65B	d1: 14-25	65	46	36	66	33	25.5	15	Up to φ20: M8, φ22 and up: M6
TCD-65B	d2: 28-35	65	46	36	66	33	25.5	15	Up to φ20: M8, φ22 and up: M6
TCD-80B	d1: 15-35	80	59	46	81	40.5	32	17	Up to φ28: M10, φ30 and up: M8
TCD-80B	d2: 38-45	80	59	46	81	40.5	32	17	Up to φ28: M10, φ30 and up: M8
TCD-90B	d1: 19-35	90	64	51	94	47	36.5	21	Up to φ35: M10, φ38 and up: M8
TCD-90B	d2: 38-50	90	64	51	94	47	36.5	21	Up to φ35: M10, φ38 and up: M8
TCD-100B	d1: 20-40	100	71	56	99	49.5	38	23	Up to φ35: M12, φ38 and up: M10
TCD-100B	d2: 42-55	100	71	56	99	49.5	38	23	Up to φ35: M12, φ38 and up: M10

Model number	Allowable torque N・m	Allowable eccentricity mm	Allowable deviation angle °	Allowable axial displacement mm	Maximum rotation speed min^-1	Type	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	Type	Overall N・m/rad	Leaf spring only N・m/rad	Axial spring constant N/mm	Moment of inertia kg・m2	Mass kg
TCD-65B	80	0.2	1	±0.92	10000	SS	4.20×10⁴	1.14×10⁵	66	3.60×10^-4	0.7
TCD-65B	80	0.2	1	±0.92	10000	LS	5.10×10⁴	1.14×10⁵	66	5.17×10^-4	0.85
TCD-80B	140	0.23	1	±1.15	10000	SS	7.50×10⁴	1.61×10⁵	45	1.04×10^-3	1.28
TCD-80B	140	0.23	1	±1.15	10000	LS	8.60×10⁴	1.61×10⁵	45	1.47×10^-3	1.55
TCD-90B	250	0.3	1	±1.27	10000	SS	1.56×10⁵	3.40×10⁵	52	2.11×10^-3	2.09
TCD-90B	250	0.3	1	±1.27	10000	LS	1.89×10⁵	3.40×10⁵	52	2.86×10^-3	2.42
TCD-100B	320	0.31	1	±1.41	10000	SS	2.22×10⁵	5.15×10⁵	75	3.26×10^-3	2.62
TCD-100B	320	0.31	1	±1.41	10000	LS	2.84×10⁵	5.15×10⁵	75	4.53×10^-3	3.11
TCD-120B	600	0.60	1	±1.71	10000	None	0.88×10⁶	2.16×10⁶	None	1.62×10^-2	7.44

(Unit: mm)