In addition to the fixed dimensions, we also release four different mounting hole specifications to meet various mounting needs.

Fixed dimension type

General type
Applicable to multiple keyways and complete dimension specifications
GB/T 1096-1979 standard

Semi-finished product

Convenient for customers to process their own dimensions

Mounting hole type

A variety of hole types can be selected, which can greatly reduce customers' processing costs. The mounting holes are convenient for mounting and fixing, and the screw holes are convenient for disassembly, so they can be used repeatedly.

Differences between Misumi Economy Parallel Keys and Market Distribution Products

	Misumi Standard Products	Misumi Economy	Market Distribution Products※
Steel Material	Japanese Material	High Quality S35C/S45C	Chinese Carbon Steel
Stainless Steel Material	Japanese Import	High Quality Stainless Steel SUS304	Chinese Stainless Steel
Tensile Strength	600N/mm2 or more	500N/mm2 or more	Not specified
Tolerance standard	B tolerance 0-0.03	B tolerance 0-0.03	Not guaranteed (not constant)
	H tolerance 0-0.03	H tolerance 0-0.03
	L tolerance 0-0.15	L tolerance 0-0.15
	R tolerance 0.25-0.40	R tolerance 0.25-0.40
Usage environment	High, medium, low speed	Medium, low speed	Medium, low speed

The tensile strength of Misumi Economy Parallel Key can meet the needs of medium and low speeds.
The dimensional tolerance meets the requirements of national standards and the material is guaranteed, so you can use it with confidence.

Market distribution*

The precision of the circular R-angle is low, a gap occurs during assembly, and the length exceeds the tolerance range, making perfect assembly impossible VS

Misumi Economy Type

Misumi Economy Type uses imported cutting tools and strictly complies with national standards. Before shipment, the R angle is inspected with a specialized jig to ensure complete assembly with the national standard keyway and no gaps.

Market distribution product*

72H salt mist test results: 95% or more rust area VS

Misumi Economy type

72H salt mist test results: The stainless steel material of Misumi Economy type products has passed a third-party salt mist test, so they can be used with confidence in equipment requiring rust prevention.
※ Market distribution products are similar products that we purchased randomly from online and offline markets.
※ Experimental data is obtained through our own inspection and measurement and is provided for reference only.