Difference between MISUMI economy type and MISUMI standard products (based on the same specification of disc type)

	MISUMI Standard Product	MISUMI Economy Type	Market Distribution Product*
Maximum rotation speed range	500-45000 r/min	Below 10000 r/min	Below 10000 r/min
Allowable torque range	0.9-16N·m	1-8N·m	1~8N·m
Body material	A7075 (aviation aluminum)	A7075 (aviation aluminum)	Chinese A6061
Aluminum alloy hardness	150HB	150HB	90HB
Tensile strength	590MPa	570MPa	213MPa

MISUMI Economy Coupling Specifications

MISUMI economy couplings are available in various specifications and shipped within 3 days at the earliest.

	Disc type		Oldham type		Slit type		Jaw type
	MISUMI Economy type	Market distribution product*	MISUMI Economy type	Market distribution product*	MISUMI Economy type	Market distribution product*	MISUMI Economy type	Market distribution product*
Shaft hole diameter (φ)	4~25	6~20	3~14	6~20	2~14	4~14	4~16	8~16
Outer diameter (φ)	16~55	20~40	16~32	20~32	8~40	16~32	14~40	14~40
Allowable torque (N m)	1.0~25	1.0~20	0.7~45	1~4.5	0.1~8	1.0~8	0.7~17	0.7~17

※ Market distribution products are similar products purchased randomly by our company in online and offline markets.

Torsional Rigidity

• Test standard: GB/T10128-2007.
• One side of the coupling is attached to the drive shaft, and the other side is attached to a stationary intermediate shaft, showing a linear connection of 10% -100% of the rated torque per unit plane angle.
• MISUMI uses A7075 ultra-high-strength aluminum, which has 1.6 times higher material strength than common A6061 aluminum in the market, twice the product rigidity of market products, and better motor responsiveness.

  Market Distribution Product*

  Static torque rigidity 227.32N·m/rad

  VS

  MISUMI Economy Type

  Static torque rigidity 496.472N·m/rad

• Static torque rigidity: Refers to the magnitude of rigidity against the initial torsion of the coupling. The higher the rigidity, the better the product's responsiveness.

Dynamic Torque Durability Test

• We confirm durability by applying rated torque in the maximum misalignment state.
• MISUMI's economic core components use Japanese stainless steel discs and fine screws, and ensure accurate assembly of all parts through thorough internal assembly management, significantly improving product life.

Test Conditions

• Load torque: Permissible torque
• Deviation: Maximum eccentricity
• Eccentricity: Maximum eccentricity
• Test cycle: Forward and reverse rotation every 15 minutes (total 10 million rotations)

Test Results

Market distribution*

Loose screws/falling off

VS

Misumi Economy Type

No Change

Test Details	Market Distribution Product	MISUMI Economy Type
1 million turns	06 hole rotation	No change
1.5 million turns	06 hole rotation	No change
2.5 million turns	06 hole and 08 hole shaft hole displacement	06 hole shaft hole displacement
9 million turns	Disk loosening	No change
10 million turns	Screw loosening 06 hole Elimination	No change

* Market distribution products are similar products purchased randomly by our company in online and offline markets.
* Experimental data is obtained through our company's inspection and measurement and is provided for reference only.

Linear drive mechanism where motor drives ball screw
It is a linear drive mechanism driven by a stepper motor, widely applied in industrial automation production fields such as automotive parts manufacturing, packaging, and medical.